The role of excess oxygen for modeling high-Mn, low-Ca garnets in metapelites from the northern Central Metasedimentary Belt of the Grenville Province, Ontario, Canada

Probably not a substantial claim: may not pass S3 (load-bearing).

Markley et al. (2018) data provided evidence for a late Ottawan event at ca. 1045 Ma that they interpreted to be related to extensional tectonics.

“Specifically their data provided evidence for: i) a well-defined prograde, pre-to late Shawinigan event (i.e., 1220-1160 Ma), ii ) a prograde early Ottawan event (1100-1075 Ma), and iii) a late Ottawan event at ca. 1045 Ma that they interpreted to be related to extensional tectonics.”

• cites Markley et al. (2018) sourceSupported

Probably not a substantial claim: may not pass S3 (load-bearing).

Three monazite ages of schists, one metamorphic zircon age of a quartzose gneiss in marble and one titanite age of a skarn of the supracrustal package yield metamorphic Ottawan ages of 1041-1092 Ma in the Bancroft terrane.

“Three monazite ages of schists (Mezger et al. 1993, Burr andCarr 1994), one metamorphic zircon age of a quartzose gneiss in marble (Magnus 2013) and one titanite age of a skarn (Mezger et al. 1993) of the supracrustal package yield metamorphic Ottawan ages of 1041-1092 Ma in the Bancroft terrane.”

• cites Mezger et al. 1993 sourcePartly supported

  In “Central Metasedimentary Belt Boundary Zone and Bancroft domain” (page unavailable), the paper reports sphene (titanite) ages from Bancroft-area skarns, but attributes their growth to igneous activity; it instead assigns regional metamorphism to sphene ages of 1045–1030 Ma from marbles and calc-silicate gneisses. Table 1 (page unavailable) lists a 1041 Ma monazite age, but the paper does not identify three Bancroft schist monazite ages or establish the stated 1041–1092 Ma metamorphic range. The zircon age is cited to Magnus, not Mezger, in the citing sentence. (LLM, conf=0.84)

  Experimental — accuracy not yet measured
• cites Burr and Carr 1994Not matched

  Couldn’t be matched to a paper in Crossref, so it can’t be checked.

• cites Magnus 2013Not matched

  Couldn’t be matched to a paper in Crossref, so it can’t be checked.

Probably not a substantial claim: may not pass S3 (load-bearing).

Markley et al. (2018) data provided evidence for a prograde early Ottawan event (1100-1075 Ma).

“Specifically their data provided evidence for: i) a well-defined prograde, pre-to late Shawinigan event (i.e., 1220-1160 Ma), ii ) a prograde early Ottawan event (1100-1075 Ma), and iii) a late Ottawan event at ca. 1045 Ma that they interpreted to be related to extensional tectonics.”

• cites Markley et al. (2018) sourceSupported

Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

Iterative thermodynamic models (ITM) are built on a forward simulation and coupled to an iterative optimization refining the causal factors.

“Iterative thermodynamic models (ITM) are built on a forward simulation (i.e., equilibrium phase diagrams) and then coupled to an iterative optimization refining the causal factors (Lanari and Duesterhoeft 2019, Duesterhoeft and Lanari 2020).”

• cites Lanari and Duesterhoeft 2019Not matched

  Couldn’t be matched to a paper in Crossref, so it can’t be checked.

• cites Duesterhoeft and Lanari 2020 sourceSupported

Probably not a substantial claim: may not pass S3 (load-bearing).

Markley et al. (2018) published monazite U-Th-Pb ages for the Bancroft terrane and the CMBbtz that support the previously interpreted polymetamorphic history.

“Recently, Markley et al. (2018) published monazite U-Th-Pb ages for the Bancroft terrane and the CMBbtz that support the previously interpreted polymetamorphic history.”

• cites Markley et al. (2018) sourceSupported

Probably not a substantial claim: may not pass S3 (load-bearing).

Markley et al. (2018) data provided evidence for a well-defined prograde, pre-to late Shawinigan event (i.e., 1220-1160 Ma).

“Specifically their data provided evidence for: i) a well-defined prograde, pre-to late Shawinigan event (i.e., 1220-1160 Ma), ii ) a prograde early Ottawan event (1100-1075 Ma), and iii) a late Ottawan event at ca. 1045 Ma that they interpreted to be related to extensional tectonics.”

• cites Markley et al. (2018) sourcePartly supported

  In the Discussion (manuscript p. 19), Markley et al. interpret Killaloe monazite dates of 1220–1160 Ma and decreasing yttrium as recording prograde metamorphism associated with the Shawinigan event. The interpretation is qualified elsewhere (manuscript p. 17) as tentative, and the older Shawinigan record is reported for the Killaloe samples rather than throughout the CMBbz. Calling the prograde event “well-defined” overstates that certainty. (LLM, conf=0.83)

  Experimental — accuracy not yet measured

May combine two claims.

For the Bancroft terrane, the T max stage is represented by the early Ottawan phase before 1.08 Ga, supported by monazite ages of Markley et al. (2018) who observed prograde metamorphism from 1.095 to 1.08 Ga in the West Guilford area.

“For the Bancroft terrane this T max stage is represented by the early Ottawan phase before 1.08 Ga, which is supported by the monazite ages of Markley et al. (2018) who observed prograde metamorphism from 1.095 to 1.08 Ga in the West Guilford area (Bancroft terrane).”

• cites Markley et al. (2018) sourcePartly supported

  The Discussion: Monazite Petrochronology (p. 15) reports West Guilford monazite core ages of approximately 1095 and 1080 Ma and says their progression may record prograde metamorphism. It associates peak Ottawan metamorphism with the approximately 1080 Ma domains, rather than establishing a temperature maximum strictly before 1.08 Ga. The claim also states as an observation what the paper presents as an interpretation. (LLM, conf=0.84)

  Experimental — accuracy not yet measured

Probably not a substantial claim: may not pass S3 (load-bearing).

The onset of erosion may correlate with the deposition of the Flinton Group metasediments in the southernmost part of the hanging wall, as proposed by Markley et al. (2018).

“The onset of erosion may correlate with the deposition of the Flinton Group metasediments in the D r a f t 39 southernmost part of the hanging wall, as proposed by Markley et al. (2018).”

• cites Markley et al. (2018) sourcePartly supported

  The discussion passage (labelled “D r a f t”; page not supplied) places Flinton Group sediment deposition in the CMBbz hanging wall between the Shawinigan and Ottawan orogenies. It does not propose that the onset of erosion correlated with that deposition, so the central correlation attributed to Markley et al. is unsupported. (LLM, conf=0.85)

  Experimental — accuracy not yet measured

May combine two claims.

The supracrustal Bandak Group was deposited at circa 1.15 Ga, an age that correlates well with the Flinton Group in the CMB that was deposited after 1.15 Ga.

“In addition, the supracrustal Bandak Group was deposited at circa 1.15 Ga (Laajoki et al. 2002, Spencer et al. 2014), an age that correlates well with the Flinton Group in the CMB that was deposited after 1.15 Ga (Moore andThompson 1980, Sager-Kinsman andParrish 1993).”

• cites Laajoki et al. 2002Not checked — no full text of the source
• cites Spencer et al. 2014 sourceSupported
• cites Moore andThompson 1980Not matched

  Couldn’t be matched to a paper in Crossref, so it can’t be checked.

May combine two claims.

Cl-rich brines would not change the grossular content and can lead to higher mobility of Fe(II) in fluids.

“In contrast, Cl-rich brines wouldn't change the grossular content and can lead to higher mobility of Fe(II) in fluids (Debret and Sverjensky 2017).”

• cites Debret and Sverjensky 2017 sourcePartly supported

  In “Evolution of oxygen fugacity and implications for the nature of slab derived fluids” (page unavailable), the paper says that chlorine concentrations up to 2 wt% NaCl could potentially increase Fe(II) mobility in serpentinite-derived fluids. It does not address whether Cl-rich brines leave grossular content unchanged; a search for “grossular” found no relevant passage. (LLM, conf=0.88)

  Experimental — accuracy not yet measured

May combine two claims.

Titanite U-Pb ages of 1.08-1.05 Ga in the Bancroft terrane show that the rocks were below 650°C at that time and thus define the time of the dominant metamorphic stage at 0.6 GPa and 650°C for the lower plate (Bancroft terrane).

“Titanite U-Pb ages of 1.08-1.05Ga in the Bancroft terrane (Hanmer andMcEachern 1992, Mezger et al. 1993) show that the rocks have been below 650°C (max.closure temperature of titanite) at this point of time and thus define the time of the dominant metamorphic stage at 0.6 GPa and 650°C for the lower plate (i.e. the Bancroft terrane).”

• cites Hanmer andMcEachern 1992Not matched

  Couldn’t be matched to a paper in Crossref, so it can’t be checked.

• cites Mezger et al. 1993 sourcePartly supported

  The Central Metasedimentary Belt Boundary Zone and Bancroft domain section (page unavailable) reports sphene ages of 1074–1045 Ma, but identifies those grains as igneous; it dates regional metamorphism from metamorphic sphene ages of 1045–1030 Ma instead. The Closure temperatures section estimates about 650°C for most analyzed sphenes, not a universal maximum, while the Geological setting section reports about 6 kbar for Bancroft. Thus the paper supports the approximate temperature and pressure, but not the claim that 1.08–1.05 Ga titanite ages define the dominant Bancroft metamorphic stage. (LLM, conf=0.88)

  Experimental — accuracy not yet measured

May combine two claims.

The high temperature path represents the lower plate (Bancroft terrane + CMBbtz) and the medium temperature path represents the upper plate (Elzevir terrane).

“The growth zoning of garnet in sample BAN030b provides confirmation of a temperature increase for samples of the Thompson 1984, Thompson andEngland 1984), where the high temperature path represents the lower plate (Bancroft terrane + CMBbtz) and the medium temperature path the upper plate (Elzevir terrane).”

• cites Thompson 1984 sourcePartly supported

  Section 3.1 distinguishes the thermal paths of rocks below thrust sheets from those within thrust sheets, and section 2.5 describes heating below a thrust surface and possible cooling above it. This supports a general lower-versus-upper-plate contrast, but the paper does not identify the Bancroft, CMBbtz, or Elzevir terranes with the claimed high- and medium-temperature paths. (LLM, conf=0.82)

  Experimental — accuracy not yet measured
• cites Thompson and England 1984 sourceCould not verify

  Section 3.1 discusses modeled pressure–temperature paths for rocks above and below thrust sheets, but does not assign high- and medium-temperature paths to the named plates or terranes. Searches for Bancroft, CMBbtz, Elzevir, and the proposed upper-/lower-plate assignment found no passage addressing that mapping. (LLM, conf=0.76)

  Experimental — accuracy not yet measured

May combine two claims.

Forward phase equilibrium modeling has weaknesses, including geological uncertainties (kinetic factors, determination of the reactive bulk composition, compositional variations due to partial melting) and database/software limitations, which are difficult to quantify and may affect the outcome of every phase equilibrium model.

“However, the forward phase equilibrium modeling approach also has its weaknesses, including both geological uncertainties such as kinetic factors (e.g.,Waters and Lovegrove 2002, Carlson et al. 2015, Pattison and Spear 2018), determination of the reactive bulk composition (e.g.,Palin et al. 2016), and compositional variations due to partial melting (e.g.,Guevara and Caddick 2016); and database-and”

• cites Waters and Lovegrove 2002 sourceNot checked — no full text of the source
• cites Palin et al. 2016 sourceSupported
• cites Forshaw et al. 2019Not matched

  Couldn’t be matched to a paper in Crossref, so it can’t be checked.

Probably not a substantial claim: may not pass S3 (load-bearing).

Sample HAL104 of the West Guilford area is investigated with the ITM approach using the software BINGO-ANTIDOTE in an accompanying study by Duesterhoeft and Lanari (2020).

“In an accompanying study byDuesterhoeft and Lanari (2020), sample HAL104 of the West Guilford area is investigated with the ITM approach using the software BINGO-ANTIDOTE.”

• cites Duesterhoeft and Lanari (2020) sourceSupported

Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

A minor amount of gedrite (Na-Al bearing) is present in the matrix of sample BAN030b and is in equilibrium with anthophyllite.

“A minor amount of gedrite (Na-Al bearing) is also present in the matrix and is in equilibrium with anthophyllite; both types of orthoamphibole are decomposing to chlorite.”

Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

In sample BC04, sillimanite is abundant in the matrix and is aligned with the foliation of the light bands, but is also present as inclusion in the rim of garnet.

“Sillimanite is abundant in the matrix and is aligned with the foliation of the light bands, but is also present as inclusion in the rim of garnet (Fig. 3D).”

May combine two claims.

Anthophyllite is the dominant orthoamphibole in sample BAN030b and occurs as a reaction rim and in the matrix.

“Anthophyllite is the dominant orthoamphibole and occurs as a reaction rim and in the matrix.”

Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

In sample BAN015, foliation is characterized by dark biotite bearing bands interlayered with light bands, the latter mainly composed of quartz and plagioclase.

“Foliation is characterized by dark biotite bearing bands that are interlayered with light bands, the latter being mainly composed of quartz and plagioclase.”

Probably not a substantial claim: may not pass S3 (load-bearing).

Garnet paragneiss sample BAN015 was collected along the old Hastings railway track, northeast of Bronson Lake.

“Garnet paragneiss sample BAN015 was collected along the old Hastings railway track, northeast of Bronson Lake.”

May combine two claims.

Sample BC12 yielded a metamorphic temperature of 630 °C at 0.6 GPa, corresponding to the middle amphibolite facies.

“The same approach was adopted for sample BC12 which yielded metamorphic temperature of 630 °C at 0.6 GPa that corresponds to the middle amphibolite facies.”

Probably not a substantial claim: may not pass S3 (load-bearing).

Minor biotite (1 vol%) occurs along garnet contacts and in the matrix of sample BAN030b.

“Minor biotite (1 vol%) occurs along garnet contacts (Fig. S1A) and in the matrix.”

Probably not a substantial claim: may not pass S3 (load-bearing).

The kyanite-to-sillimanite reaction is only modeled at pressures above 0.8 GPa.

“This reaction is only modeled at pressures above 0.8 GPa (Fig. 6C).”

The quote only partly states this claim.

Grt-Bt reaction lines yield temperatures between 480 and 550 °C for two rim-rim measurements.

“The Grt-Bt reaction lines yield temperatures between 480 and 550 °C.”

Probably not a substantial claim: may not pass S3 (load-bearing).

Reflected light microscopy of sample BAN015 shows small euhedral ilmenite blades grown after larger subhedral magnetite grains.

“Reflected light microscopy shows small euhedral ilmenite blades obviously grown after larger subhedral magnetite grains (Fig. 3G).”

May combine two claims.

In sample BC04, the almandine component of garnet is the highest (Xalm ~0.57), followed by the pyrope component (Xprp ~0.27).

“The almandine component of this garnet is the highest (X alm ~0.57), followed by the pyrope component (X prp ~0.27).”

Probably not a substantial claim: may not pass S3 (load-bearing).

Quartz in sample BAN030b occurs only as inclusions in garnet.

“Quartz occurs only as inclusions in garnet.”

Probably not a substantial claim: may not pass S3 (load-bearing).

Sample BC04 crops out in a small siliceous schistose metasedimentary layer surrounded by alkali granitic gneiss east of Clear Lake in the Sebastopol area.

“It crops out in a small siliceous schistose metasedimentary layer surrounded by alkali granitic gneiss east of Clear Lake in the Sebastopol area”

Probably not a substantial claim: may not pass S3 (load-bearing).

The resorbed feather amphiboles in sample BAN030b are rimmed by plagioclase and euhedral anthophyllite.

“They are rimmed by plagioclase and euhedral anthophyllite (Fig. S1 A,C).”

Probably not a substantial claim: may not pass S3 (load-bearing).

In sample BAN015, cordierite, white mica and opaque phases are accessory.

“Cordierite, white mica and opaque phases are accessory.”

Probably not a substantial claim: may not pass S3 (load-bearing).

In sample BAN015, tiny rutile lamellae or needles are observed inside the ilmenite grains.

“Tiny rutile lamellae or needles can be observed inside the ilmenite grains (Fig. 3H).”

Probably not a substantial claim: may not pass S3 (load-bearing).

Oxide phases in sample BAN030b are ilmenite and pyrite.

“Oxide phases are ilmenite and pyrite.”

Probably not a substantial claim: may not pass S3 (load-bearing), S4 (based). May combine two claims.

The spessartine component decreases from core to rim in sample BC12, a pattern referred to as a bell-shaped profile in the literature.

“The spessartine component decreases from core to rim, describing what is referred to as a”

Probably not a substantial claim: may not pass S3 (load-bearing).

In sample BC04, a kyanite-magnetite symplectite is observed.

“Furthermore, we observed a kyanite-magnetite symplectite, which we interpret as a pseudomorph of staurolite.”

Probably not a substantial claim: may not pass S3 (load-bearing).

Plagioclase in sample BAN030b shows reverse zoning in the matrix with a more anorthite-rich rim.

“Plagioclase shows reverse zoning in the matrix with a more anorthite-rich rim (Fig. S1 D).”

May combine two claims.

The major element patterns of garnet in sample BC04 do not show chemical zoning, but a minor rimward decrease in Mg and minor rimward increase in Ca are observed.

“The major element patterns of garnet do not show chemical zoning (Fig. 4A), but a minor rimward decrease in Mg and minor rimward increase in Ca are observed (Fig. 4A).”

Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

In sample BAN015, biotite porphyroblasts are up to 3 mm in length, whereas the common grain-size of other crystals does not exceed 1 mm.

“Biotite porphyroblasts are up to 3 mm in length, whereas the common grain-size of the other crystals does not exceed 1 mm.”

Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

Sample BAN030b crops out along Highway 62, south of L'Amable, and is part of the Elzevir terrane.

“Sample BAN030b crops out along the Highway 62, south of L'Amable, and is part of the Elzevir terrane.”

Probably not a substantial claim: may not pass S3 (load-bearing).

The outcrop of sample BAN015 is located within the Elzevir terrane slightly south of the inferred trace of the Bancroft shear zone.

“The outcrop is located within the Elzevir terrane slightly south of the inferred trace of the Bancroft shear zone.”

Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

Sample BC04 is a dark, fine-grained, sillimanite-bearing garnet paragneiss composed mainly of biotite, quartz and plagioclase.

“Sample BC04 is a dark, fine-grained, sillimanite-bearing garnet paragneiss that is composed mainly of biotite, quartz and plagioclase.”

Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

Garnet in sample BAN015 exhibits resorbed grain boundaries and inclusions of quartz.

“It exhibits resorbed grain boundaries and inclusions of quartz.”

Probably not a substantial claim: may not pass S3 (load-bearing).

Most of the resorbed feather amphiboles in sample BAN030b are pargasitic in composition.

“Most of the resorbed feather amphiboles are pargasitic in composition.”

May combine two claims.

No sillimanite was observed in sample BAN015, although it is reported from outcrops nearby.

“no sillimanite was observed in the sample although it is reported from outcrops nearby.”

Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

In sample BAN015, garnet is sparse and is not larger than 3 mm in diameter.

“Garnet is sparse in the sample and is not larger than 3 mm in diameter.”

Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

Both anthophyllite and gedrite in sample BAN030b are decomposing to chlorite.

“A minor amount of gedrite (Na-Al bearing) is also present in the matrix and is in equilibrium with anthophyllite; both types of orthoamphibole are decomposing to chlorite.”

Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

Sample BAN030b is a feather amphibolite typically streaked with calcitic veins, although the matrix does not react with HCl and no carbonates were observed in thin section.

“It is a feather amphibolite that is typically streaked with calcitic veins, although the matrix does not react with HCl and no carbonates were observed in thin section.”

Probably not a substantial claim: may not pass S3 (load-bearing).

No sillimanite was observed in sample BAN015.

“No sillimanite was observed in this sample but has been reported from nearby outcrops (see map of Hewitt and James 1955).”

Probably not a substantial claim: may not pass S3 (load-bearing).

Other inclusions in garnet in sample BAN030b are ilmenite, pyrite, plagioclase and chlorite.

“Other inclusions in garnet are ilmenite, pyrite, plagioclase and chlorite.”

Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

Garnet porphyroblasts are up to 2 cm in diameter and display a flattened habit aligned with the foliation.

“Garnet porphyroblasts are up to 2 cm in diameter and display a flattened habit aligned with the foliation.”

May combine two claims.

In sample BC04, sillimanite, magnetite and rutile grains are absent from the matrix but occur as inclusions in the garnet mantle and rim, not in the core.

“Sillimanite as well as magnetite and rutile grains are absent from the matrix but can be observed as inclusions in the garnet mantle and rim (i.e.not in the core, see Fig.3A).”

Probably not a substantial claim: may not pass S3 (load-bearing).

The sample BC12 modeled mineral modes at a temperature of 636°C and pressure of 0.54 GPa.

“modeled mineral modes (Mod.) at a temperature of 636 °C and pressure of 0.54 GPa.”

Probably not a substantial claim: may not pass S3 (load-bearing).

The grossular component is invariant throughout (X grs =0.05).

“The grossular component is invariant throughout (X grs =0.05).”

May combine two claims.

Sillimanite is not stable at these conditions; it is stable at pressures of less than 0.85 GPa down to 0.6 GPa.

“However, sillimanite (only present in the garnet mantle) is not stable at these conditions.It is stable at pressures of less than 0.85 GPa down to 0.6 GPa”

Probably not a substantial claim: may not pass S3 (load-bearing).

In BAN030b, the core is rich in manganese (X sps =0.05) in comparison to the rim.

“The core is also rich in manganese (X sps =0.05) in comparison to the rim.”

Probably not a substantial claim: may not pass S3 (load-bearing).

In sample BC12, extensive alteration of cordierite leads to pinitized pseudomorphs, commonly in the form of pseudo-hexagonal prisms.

“Extensive alteration of cordierite in both bands leads to pinitized pseudomorphs, commonly in the form of pseudo-hexagonal prisms (Fig.3B).”

May combine two claims.

The GRTMOD software finds the best intersection of garnet core isopleths at 785 °C and 0.99 GPa using excess oxygen, which would correspond to Fe3+/Fe tot ratio of 30 %.

“The GRTMOD software finds the best intersection of garnet core isopleths at 785 °C and 0.99 GPa (see green star) using excess oxygen which would correspond to Fe 3+ /Fe tot ratio of 30 %.”

May combine two claims.

In the zoned samples, garnet shows a high spessartine (X sps >=0.1) and a low grossular component (X grs <=0.1).

“garnet shows a high spessartine (X sps >=0.1) and a low grossular component (X grs <=0.1)”

May combine two claims.

The stability of clinoamphibole increases and replaces clinopyroxene at temperatures below 550°C.

“the stability of clinoamphibole increases and replaces clinopyroxene at temperatures below 550°C”

Probably not a substantial claim: may not pass S3 (load-bearing).

The mole fraction of almandine increases from 0.58 in the core to 0.62 in the rim.

“The mole fraction of almandine increases from 0.58 in the core to 0.62 in the rim.”

Probably not a substantial claim: may not pass S3 (load-bearing).

Grains exhibit resorbed grain boundaries.

“Grains exhibit resorbed grain boundaries.”

May combine two claims.

The amount of excess oxygen affects the incorporation of Mn into garnet, and addition of excess oxygen is the only way for the garnet isopleths of the samples to intersect.

“As shown in Fig. 6, the amount of excess oxygen also affects the incorporation of Mn into garnet and addition of excess oxygen is the only way for the garnet isopleths of our samples to intersect.”

Probably not a substantial claim: may not pass S3 (load-bearing).

The garnet mantle has a higher X prp =0.24 compared to X prp =0.23 in the core and X prp =0.2 in the rim.

“poorly shaped garnet mantle (slight shoulder) with a higher X prp =0.24 compared to X prp =0.23 in the core and X prp =0.2 in the rim”

May combine two claims.

It was not possible to thermodynamically mimic the garnet core composition of sample BAN030b by adding various amounts of CO2 to the bulk rock composition, mainly because it results in an increase of the grossular component in garnet.

“However, it was not possible to thermodynamically mimic the garnet core composition of the sample by adding various amounts of CO 2 to the bulk rock composition, mainly because it results in an increase of the grossular component in garnet.”

Probably not a substantial claim: may not pass S3 (load-bearing).

Calcitic veinlets were observed in sample BAN030b.

“Calcitic veinlets were observed in sample BAN030b.”

May combine two claims.

Two samples (BC12, BAN030b) from the transition zone of the Bancroft terrane with the Elzevir terrane reveal a second event, of which the most southerly sample (BAN030b), with a pressure of 0.87 GPa at medium temperatures, is not compatible with the regional metamorphic field gradient defined by Rivers (2012).

“However, two samples (BC12, BAN030b) from the transition zone of the Bancroft terrane with the Elzevir terrane reveal a second event, of which the most southerly sample (BAN030b), with a pressure of 0.87 GPa at medium temperatures (Fig. 9), is not compatible with the regional metamorphic field gradient defined by Rivers (2012).”

• cites Rivers (2012) sourceNot checked — no full text of the source

May combine two claims.

Applying the database, the garnet core composition yielded P-T conditions of 560 °C and 0.79 GPa, similar to the results above.

“Applying this database, the garnet core composition yielded P-T conditions of 560 °C and 0.79 GPa, which is similar to the results above (see Fig. 7B).”

• cites Diener and Powell (2012) sourceNot checked — no full text of the source
• cites Holland and Powell (1998) sourceNot checked — no full text of the source

May combine two claims.

The three samples BC04, BC12 and BAN015 are oxidized, showing a high Fe3+/Fe tot ratio of 0.33-0.38 that corresponds to a relative oxygen fugacity between the fayalite-magnetite-quartz (FMQ) and magnetite-hematite buffers.

“The three samples BC04, BC12 and BAN015 are oxidized, showing a high Fe 3+ /Fe tot ratio of 0.33-0.38 that corresponds to a relative oxygen fugacity between the fayalite-magnetite-quartz (= FMQ) and magnetite-hematite buffers”

• cites Iacovino et al. 2020 sourceNot checked — no full text of the source

May combine two claims.

In the garnet cores, magnetite and rutile are the dominant oxide phases, whereas ilmenite-hematite grains can be observed in and at the garnet rims.

“In the garnet cores, magnetite and rutile are the dominant oxide phases, whereas ilmenite-hematite grains can be observed in and at the garnet rims”

May combine two claims.

The addition of even very small amounts of CO2 increases the pressure estimates, whereas temperature is unaffected.

“The addition of even very small amounts of CO 2 increases the pressure estimates, whereas temperature is unaffected.”

May combine two claims.

In BAN030b, pyrope content in the core is low (X prp =0.05) and continuously increases to 0.18 in the rim.

“Pyrope content in the core is low (X prp =0.05) and continuously increases to 0.18 in the rim.”

May combine two claims.

The GASP reaction line intersects the Grt-Bt geothermometer at 0.925 GPa and thus plots in the upper amphibolite facies.

“The GASP reaction line intersects the Grt-Bt geothermometer at 0.925 GPa and thus plotting in the upper amphibolite facies.”

Probably not a substantial claim: may not pass S3 (load-bearing), S4 (based).

Chlorite and white mica are secondary mineral phases resulting from pinitization of cordierite.

“Chlorite and white mica are secondary mineral phases resulting from pinitization of cordierite”

May combine two claims.

Regarding sample BC04, the GASP barometer is in line with our garnet isopleth thermobarometry, whereas the Grt-Bt thermometer applied to the garnet rim is 100 °C lower than the temperatures derived by garnet core isopleths geothermobarometry.

“Regarding sample BC04, the GASP barometer is in line with our garnet isopleth thermobarometry, whereas the Grt-Bt thermometer applied to the garnet rim is 100 °C lower than the temperatures derived by garnet core isopleths geothermobarometry.”

Probably not a substantial claim: may not pass S3 (load-bearing).

Former geothermobarometric investigations of the CMB were compiled by Streepey et al. (1997).

“Former geothermobarometric investigations of the CMB were compiled by Streepey et al. (1997).”

• cites Streepey et al. (1997)Not matched

  Couldn’t be matched to a paper in Crossref, so it can’t be checked.

May combine two claims.

The compilation by Streepey et al. (1997) reveals an abundance of temperature data in the Elzevir terrane, but few P or T estimates for the Bancroft terrane.

“This compilation reveals an abundance of temperature data in the Elzevir terrane (see also Rathmell et al. 1999, Dunn 2005, Dunn et al. 2019 for more temperature data and Fig. 2), but few P or T estimates for the Bancroft terrane.”

• cites Streepey et al. (1997)Not matched

  Couldn’t be matched to a paper in Crossref, so it can’t be checked.

Probably not a substantial claim: may not pass S3 (load-bearing).

During the Shawinigan orogenic pulse, some CMB terranes and domains were imbricated under mid-crustal thrusting and high-grade metamorphism.

“During the Shawinigan orogenic pulse, some CMB terranes and domains were imbricated under mid-crustal thrusting and high-grade metamorphism.”

May combine two claims.

The maximum temperature for sample BAN030b is 600±25 °C, which marks the crest of the solvus studied by Spear (1980).

“Since gedrite and anthophyllite (which is the dominant phase) exist in equilibrium, the maximum temperature is 600±25 °C, which marks the crest of the solvus studied by Spear (1980).”

• cites Spear (1980)Not checked — no full text of the source

Probably not a substantial claim: may not pass S3 (load-bearing).

During the Ottawan orogenic pulse (circa 1080-1020 Ma) renewed thrusting occurred throughout the CMB, including in the Bancroft terrane.

“Simultaneously, a structural boundary developed between the Bancroft and the Elzevir terranes during the Shawinigan orogenic pulse, and during the Ottawan orogenic pulse (circa 1080-1020 Ma) renewed thrusting occurred throughout the CMB, including in the Bancroft terrane (McEachern andvan Breemen 1993, Timmerman et al. 1997).”

• cites McEachern and van Breemen 1993 sourceNot checked — no full text of the source
• cites Timmerman et al. 1997Not matched

  Couldn’t be matched to a paper in Crossref, so it can’t be checked.

Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

High-grade fabrics record the Shawinigan event in the Bancroft terrane and in some parts of the northern Elzevir terrane, but they are not present throughout the southern Elzevir terrane.

“High-grade fabrics record this event in the Bancroft terrane and in some parts of the northern Elzevir terrane (Duguet and Easton 2017), but they are not present throughout the southern Elzevir terrane, perhaps because the latter was situated in the upper crust at that time (Rivers andCorrigan 2000, Rivers 2008).”

• cites Duguet and Easton 2017Not matched

  Couldn’t be matched to a paper in Crossref, so it can’t be checked.

May combine two claims.

The Grt-Bt temperature of 670°C and GASP pressure of 0.6 GPa for sample BAN015 is identical with temperatures of 650 °C and 670 °C (and GASP pressure of 0.53 GPa) found in the same area by Rathmell et al. (1999) and Dunn (2005), respectively.

“This temperature is identical with the Grt-Bt geothermometer temperature of 650 °C and 670 °C (and GASP pressure of 0.53 GPa) found in the same area by Rathmell et al. (1999) and Dunn (2005), respectively.”

• cites Rathmell et al. (1999) sourceNot checked — no full text of the source
• cites Dunn (2005) sourceNot checked — no full text of the source

Probably not a substantial claim: may not pass S3 (load-bearing).

Anovitz and Essene (1990) estimated temperature of approximately 750°C and 0.9 GPa for the CMBbtz.

“However, Anovitz and Essene (1990) estimated temperature of approximately 600 °C and pressure of approximately 0.6 GPa in the Bancroft terrane and a temperature of approximately 750°C and 0.9 GPa for the CMBbtz based on a combination of geothermoand geobarometers.”

• cites Anovitz and Essene (1990) sourceNot checked — no full text of the source

Probably not a substantial claim: may not pass S3 (load-bearing).

Field studies point to an earlier amphibolite to granulite facies event in the CMB at >1100 Ma affecting the supracrustal rocks.

“The published metamorphic grade for the Bancroft terrane is amphibolite facies at 1080-1060 Ma (McEachern and van Breemen 1993, Timmerman et al. 1997)), but field studies point to an earlier amphibolite to granulite facies event in the CMB at >1100 Ma affecting the supracrustal rocks (Easton 1992(Easton , 2000)).”

• cites Easton 1992Not matched

  Couldn’t be matched to a paper in Crossref, so it can’t be checked.

• cites Easton 2000 sourceNot checked — no full text of the source

May combine two claims.

The weak character of the bell-shape profile of BC12 and the close position of the core and rim isopleths intersections indicate diffusional relaxation.

“The weak character of the bell-shape profile of BC12 (Fig. 4B)”

• Also stated in: § Geothermobarometry · plain

  “and the close position of the core and rim isopleths (Fig. 6D)”

• Also stated in: § Geothermobarometry · hedged

  “intersections indicate diffusional relaxation.”

Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

At ca. 1020 Ma (not precisely dated), localized extension and accompanying lower amphibolite-facies metamorphism occurred along the Bancroft shear zone.

“At ca. 1020 Ma (not precisely dated), localized extension and accompanying lower amphibolite-facies metamorphism occurred along the Bancroft shear zone (van der Pluijm and Carlson 1989).”

• cites van der Pluijm and Carlson 1989Not matched

  Couldn’t be matched to a paper in Crossref, so it can’t be checked.

May combine two claims.

Anovitz and Essene (1990) estimated temperature of approximately 600 °C and pressure of approximately 0.6 GPa in the Bancroft terrane.

“However, Anovitz and Essene (1990) estimated temperature of approximately 600 °C and pressure of approximately 0.6 GPa in the Bancroft terrane and a temperature of approximately 750°C and 0.9 GPa for the CMBbtz based on a combination of geothermoand geobarometers.”

• cites Anovitz and Essene (1990) sourceNot checked — no full text of the source

Probably not a substantial claim: may not pass S3 (load-bearing).

GRTMOD used with unweighted isopleths provides statistical uncertainty and accuracy of each solution.

“GRTMOD was used with unweighted isopleths (see Lanari et al. 2017), meaning that the program automates the manual search of the point of intersection of all garnet isopleths, but gives the additional information of statistical uncertainty and accuracy of each solution.”

• cites Lanari et al. 2017Not matched

  Couldn’t be matched to a paper in Crossref, so it can’t be checked.

Probably not a substantial claim: may not pass S3 (load-bearing).

In the Fishtail Lake area at the border between Bancroft terrane and the CMBbtz, prograde sillimanite with retrograde kyanite and andalusite was observed by Lal and Moorhouse (1969).

“In the Fishtail Lake area at the border between Bancroft terrane and the CMBbtz, Lal and Moorhouse (1969) observed prograde sillimanite with retrograde kyanite and andalusite.”

• cites Lal and Moorhouse (1969) sourceNot checked — no full text of the source

Probably not a substantial claim: may not pass S3 (load-bearing).

Sillimanite has been reported from nearby outcrops to sample BAN015.

“No sillimanite was observed in this sample but has been reported from nearby outcrops (see map of Hewitt and James 1955).”

• cites Hewitt and James 1955Not matched

  Couldn’t be matched to a paper in Crossref, so it can’t be checked.

Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

The CMB in Ontario is subdivided into two parts: the Composite Arc Belt (CAB) in the north and the northern Frontenac Adirondack Belt in the south, which includes the Frontenac terrane.

“The CMB in Ontario is subdivided in two parts: the Composite Arc Belt (CAB = the Bancroft terrane, Elzevir terrane (sensu lato) and its various subdomains) in the north and the northern Frontenac Adirondack Belt in the south, which includes the Frontenac terrane (Easton 1992, Carr et al. 2000).”

• cites Easton 1992Not matched

  Couldn’t be matched to a paper in Crossref, so it can’t be checked.

• cites Carr et al. 2000Not matched

  Couldn’t be matched to a paper in Crossref, so it can’t be checked.

May combine two claims.

The mode of cordierite observed in thin section matches solution 2, with computed mode of cordierite 2 vol% for solution 2 versus 28 vol% for solution 1.

“First, the mode of cordierite observed in thin section matches the one for solution 2 (the computed mode of cordierite is 2 vol% for solution 2 versus 28 vol% of solution 1).”

Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

The CMBbtz consists of ductile tectonites, whereas the Bancroft terrane is composed of platformal marine metasedimentary rocks (e.g. dolomitic and calcitic marbles and quartzites), tectonic breccias and mostly metamorphosed intrusive rocks.

“The CMBbtz consists of ductile tectonites, whereas the Bancroft terrane is composed of platformal marine metasedimentary rocks (e.g.dolomitic and calcitic marbles and quartzites), tectonic breccias and mostly metamorphosed intrusive rocks (Lumbers et al. 1990, Easton 1992).”

• cites Lumbers et al. 1990Not matched

  Couldn’t be matched to a paper in Crossref, so it can’t be checked.

• cites Easton 1992Not matched

  Couldn’t be matched to a paper in Crossref, so it can’t be checked.

May combine two claims.

At lower pressure (0.5-0.8 GPa), the kyanite-to-sillimanite reaction is hindered by the stability of staurolite, which is not observed in the sample.

“At lower pressure (0.5-0.8 GPa), this reaction is hindered by the stability of staurolite, which is not observed in the sample.”

Probably not a substantial claim: may not pass S3 (load-bearing).

The kyanite-magnetite symplectite in sample BC04 is a pseudomorph of staurolite.

“Furthermore, we observed a kyanite-magnetite symplectite, which we interpret as a pseudomorph of staurolite.”

Probably not a substantial claim: may not pass S3 (load-bearing).

The published metamorphic grade for the Bancroft terrane is amphibolite facies at 1080-1060 Ma.

“The published metamorphic grade for the Bancroft terrane is amphibolite facies at 1080-1060 Ma (McEachern and van Breemen 1993, Timmerman et al. 1997)), but field studies point to an earlier amphibolite to granulite facies event in the CMB at >1100 Ma affecting the supracrustal rocks (Easton 1992(Easton , 2000)).”

• cites McEachern and van Breemen 1993 sourceNot checked — no full text of the source
• cites Timmerman et al. 1997Not matched

  Couldn’t be matched to a paper in Crossref, so it can’t be checked.

May combine two claims.

The kyanite-sillimanite isograd is identified in the southwestern Elzevir terrane (Belmont domain) and could be extrapolated close to the town of Bancroft.

“The kyanite-sillimanite isograd is identified in the southwestern Elzevir terrane (Belmont domain) and could be extrapolated close to the town of Bancroft (Carmichael et al. 1978, Anovitz andEssene 1990).”

• cites Carmichael et al. 1978Not matched

  Couldn’t be matched to a paper in Crossref, so it can’t be checked.

• cites Anovitz and Essene 1990 sourceNot checked — no full text of the source

May combine two claims.

The garnet in sample BC12a shows a resorbed margin and slight compositional zoning, indicative of a prograde history and subsequent re-equilibration at peak conditions.

“The garnet shows a resorbed margin and slight compositional zoning, indicative of a prograde history and subsequent re-equilibration at peak conditions.”

• AssumptionThe authors state this as an assumption: All minerals coexisted in equilibrium at peak conditions.

Probably not a substantial claim: may not pass S3 (load-bearing), S4 (based).

The Bancroft terrane (and the adjacent Central Metasedimentary Belt boundary thrust zone (CMBbtz) to the north) is the structurally lowest unit of the CMB structural stack.

“The Bancroft terrane (and the adjacent Central Metasedimentary Belt boundary thrust zone (CMBbtz) to the north) is the structurally lowest unit of the CMB structural stack.”

Probably not a substantial claim: may not pass S3 (load-bearing), S4 (based).

After a period of time (typically ~60 Ma), the lower plate reaches its thermal maximum, which is represented by metamorphic ages of minerals with high closure temperatures such as monazite or zircon.

“After a period of time (typically ~60 Ma), the lower plate reaches its thermal maximum, which is represented by metamorphic ages of minerals with high closure temperatures such as monazite or zircon.”

Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

The CMBbtz was involved in ductile thrusting at ca. 1.18 Ga that was a result of the emplacement of the Elzevir terrane onto the Proterozoic Laurentia margin.

“They infer that the CMBbtz was involved in ductile thrusting at ca. 1.18 Ga that was a result of the emplacement of the Elzevir terrane onto the Proterozoic Laurentia margin.”

• cites McEachern and van Breemen (1993) sourceNot checked — no full text of the source

May combine two claims.

In crustal thickening models, the cold P-T loop is representative for the metamorphic history of the upper plate (Elzevir terrane) and the warmer loop correlates with the lower plate (Bancroft terrane + CMBbtz).

“Such a scenario is commonly observed in crustal thickening models (England andThompson 1984, Thompson andEngland 1984), where the cold P-T loop is representative for the metamorphic history of the upper plate (here Elzevir terrane) and the warmer loop correlates with the lower plate (here Bancroft terrane + CMBbtz, see Fig. 9B).”

• cites England andThompson 1984Not matched

  Couldn’t be matched to a paper in Crossref, so it can’t be checked.

• cites Thompson andEngland 1984Not matched

  Couldn’t be matched to a paper in Crossref, so it can’t be checked.

May combine two claims.

The southernmost sample's result contradicts previous pressure estimates of the region and the proposed metamorphic field gradient.

“The later result contradicts previous pressure estimates of the region and the proposed metamorphic field gradient”

May combine two claims.

The BED92 database has no effect on the outcome of garnet isopleth geothermobarometry, since the GRTMOD solutions for intersection of garnet isopleths are the same within their uncertainties.

“database has no effect on the outcome of garnet isopleth geothermobarometry, since the GRTMOD solutions for intersection of garnet isopleths are the same within their uncertainties.”

Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

The proposed OOL is less extensive than suggested by Rivers (2008) and mainly comprises the area around the Tudor gabbro pluton in the southern Elzevir terrane.

“Recently, Dunn et al. (2019) also inferred that the proposed OOL is less extensive than suggested by Rivers (2008) and only comprises mainly the area around the Tudor gabbro pluton in the southern Elzevir terrane”

• cites Dunn et al. (2019) sourceNot checked — no full text of the source
• cites Rivers (2008) sourceNot checked — no full text of the source

May combine two claims.

The Ottawan Orogenic Lid (OOL) in the western CMB is less extensive and represents the upper (unaffected by metamorphism) parts of the hanging wall.

“by indicating that the OOL in the western CMB is less extensive and represents the upper (unaffected by metamorphism) parts of the hanging wall.”

The quote only partly states this claim.

The southernmost sample's result is based on a poorly constrained sample in terms of thermodynamic modeling.

“but is based on a poorly constrained sample in terms of thermodynamic modeling.”

Probably not a substantial claim: may not pass S3 (load-bearing).

In sample BC12, chlorite and white mica are secondary mineral phases resulting from pinitization of cordierite.

“Chlorite and white mica are secondary mineral phases resulting from pinitization of cordierite”

May combine two claims.

The occurrence of sillimanite in the garnet mantle of sample BC04, and minor alkali feldspar in the matrix, indicates metamorphic conditions at 700°C and 0.6 GPa, defined by the small stability field of the equilibrium assemblage grt-bt-pl-qz-sil-kfs-ilm-H2O.

“The occurrence of sillimanite in the garnet mantle of sample BC04, and minor alkali feldspar in the matrix, indicates metamorphic conditions at 700°C and 0.6 GPa, which is defined by the small stability field of the equilibrium assemblage grtbt-pl-qz-sil-kfs-ilm-H 2 O”

• AssumptionRests on an assumption: The bulk-rock chemistry represents the initial garnet growth conditions.

Probably not a substantial claim: may not pass S4 (based).

Fluids may affect the oxygen fugacity regime and thus the position of garnet isopleths of the samples from the northern CMB.

“fluids may affect the oxygen fugacity regime and thus the position of garnet isopleths of the samples from the northern CMB.”

Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

In sample BC04, chlorite is mostly associated with biotite and is interpreted as a retrograde phase.

“Chlorite is mostly associated with biotite and is interpreted as a retrograde phase.”

May combine two claims.

The first growing garnet core takes in most Mn from the rock and is richer in Mn than the later formed, prograde garnet mantle.

“Therefore, the first growing garnet core takes in most Mn from the rock and is richer in Mn than the later formed, prograde garnet mantle.”

Probably not a substantial claim: may not pass S3 (load-bearing), S4 (based). May combine two claims.

Pressure decreases due to isostatic uplift (because of crustal thickening) and accompanying erosion, while temperature is increasing because of the continuing thermal relaxation of the perturbed geotherm.

“Then pressure decreases due to isostatic uplift (because of crustal thickening) and accompanying erosion, while temperature is increasing because of the continuing thermal relaxation of the perturbed geotherm.”

May combine two claims.

The Huntsville region experienced peak metamorphism of ca. 730°C at 1.0 GPa before 1.1 Ga that is associated with crustal thickening caused by significant northwest-directed overthrusting by the CMBbtz.

“The Huntsville region experienced peak metamorphism of ca.730°C at 1.0 GPa before 1.1 Ga that is associated with crustal thickening caused by D r a f t 37 significant northwest-directed overthrusting by the CMBbtz.”

• cites Nadeau 1990Not matched

  Couldn’t be matched to a paper in Crossref, so it can’t be checked.

Probably not a substantial claim: may not pass S3 (load-bearing).

Harlov (2000) identified CO2-rich fluids as the principal driver for oxidation of granulites from the Sveconorwegian Bamble terrane, which were metamorphosed during the Arendal phase around 1.14-1.08 GPa.

“For instance, Harlov (2000) identified CO 2rich fluids as the principal driver for oxidation of granulites from the Sveconorwegian Bamble terrane, which were metamorphosed during the Arendal phase around 1.14-1.08GPa (e.g., Bingen 2008).”

• cites Harlov (2000) sourceNot checked — no full text of the source
• cites Bingen 2008Not matched

  Couldn’t be matched to a paper in Crossref, so it can’t be checked.

Probably not a substantial claim: may not pass S3 (load-bearing).

McEachern and van Breemen (1993) proposed that northwest-directed thrusting occurred in two pulses at initially 1.19-1.18 Ga and again at 1.08-1.05 Ga.

“They proposed that northwest-directed thrusting occurred in two pulses at initially 1.19-1.18Ga and again at 1.08-1.05Ga.”

• cites McEachern and van Breemen (1993) sourceNot checked — no full text of the source

Probably not a substantial claim: may not pass S3 (load-bearing).

Hanmer and McEachern (1992) inferred that the metagabbros may have acted as a physical barrier to the upward migration of metasomatic fluids in the Elzevir terrane.

“Hanmer and McEachern (1992) inferred that the metagabbros may have acted as physical barrier to the upward migration of metasomatic fluids in the Elzevir terrane (see Fig. 2).”

• cites Hanmer and McEachern (1992) sourceNot checked — no full text of the source

Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

The Tudor gabbro pluton is a 1.24 Ga old intrusion that experienced metasomatism between 1.24 and 1.08 Ga.

“a 1.24 Ga old intrusion that experienced metasomatism between 1.24 and 1.08 Ga (Dunn andValley 1996, Duesterhoeft et al. 2017).”

• cites Dunn andValley 1996Not matched

  Couldn’t be matched to a paper in Crossref, so it can’t be checked.

• cites Duesterhoeft et al. 2017 sourceNot checked — no full text of the source

May combine two claims.

The spessartine component of garnet is very closely correlated with the amount of garnet, because the Mn content in garnet should be higher the less garnet there is in the rock.

“As a consequence, spessartine component of garnet is very closely correlated with the amount of garnet, since the Mn content in garnet should be higher the less garnet there is in the rock.”

May combine two claims.

The calculated temperature shows the minimum metamorphic temperature of the rock, because garnet rim compositions were used for the geothermometry.

“The calculated temperature shows the minimum metamorphic temperature of the rock, because we used garnet rim compositions for the geothermometry.”

Probably not a substantial claim: may not pass S3 (load-bearing), S4 (based).

The high variety of older metagabbros and metasedimentary rocks in the Elzevir terrane are most likely remnants of the lower parts of the Elzevir terrane that were probably tectonically intercalated with the upper parts during the contractional crustal thickening phase of the Ottawan event.

“The high variety of older metagabbros, but also metasedimentary rocks in the Elzevir terrane are most likely remnants of the lower parts (crust?) of the Elzevir terrane that were probably tectonically intercalated with the upper parts during the contractional crustal thickening phase of the Ottawan event.”

Probably not a substantial claim: may not pass S3 (load-bearing), S4 (based).

The oxidation potential of seawater in the Mesoproterozoic is uncertain.

“However, the oxidation potential of seawater in the Mesoproterozoic is uncertain.”

May combine two claims.

Cooling after the metamorphic peak is documented for samples south of Barry's Bay and for rocks in the northeastern CMB.

“This cooling is also documented by Anovitz and Essene (1990) for the samples south of Barry's Bay (see Fig. 2) and by Duguet and Easton (2017) for rocks in the northeastern CMB (just east of our study area).”

• cites Anovitz and Essene (1990) sourceNot checked — no full text of the source
• cites Duguet and Easton (2017)Not matched

  Couldn’t be matched to a paper in Crossref, so it can’t be checked.

May combine two claims.

Garnets of samples BC04, BC12 and BAN015 are only slightly zoned, which rules out the possibility of a bulk compositional bias based on garnet fractionation on the retrograde path.

“Moreover, garnets of sample BC04, BC12 and BAN015 are only slightly zoned, which rules out the possibility of a bulk compositional bias based on garnet fractionation on the retrograde path.”

Probably not a substantial claim: may not pass S3 (load-bearing), S4 (based). May combine two claims.

Sample HAL104 comes from a well-known outcrop near the village of West Guilford and is located between the Redstone and Dysart thrust sheets and thus at the top of CMBbtz.

“This sample comes from a well-known outcrop near the village of West Guilford and is located between the Redstone and Dysart thrust sheets and thus at the top of CMBbtz.”

May combine two claims.

Garnet rim and adjacent biotite record retrograde Fe-Mg exchange and equilibrates later than the plagioclase corona around garnet.

“This means that garnet rim and adjacent biotite record retrograde Fe-Mg exchange and equilibrates later than the plagioclase corona around garnet (see also Fig.3A).”

May combine two claims.

There are two different P-T paths in the region: (1) a retrograde P-T trajectory similar to the proposed one for the CMB by Anovitz and Essene (1990) and (2) a cryptic medium temperature P-T path for the northern Elzevir terrane (Belmont domain).

“we have two different P-T paths in the region: (1) a retrograde P-T trajectory similar to the proposed one for the CMB byAnovitz and Essene (1990) and (2) a cryptic medium temperature P-T path for the northern Elzevir terrane (Belmont domain).”

• cites Anovitz and Essene (1990) sourceNot checked — no full text of the source

May combine two claims.

Pargasite decomposed to orthoamphibole during pressure decrease and temperature increase, and orthoamphibole subsequently altered to chlorite during the ensuing retrograde event.

“Pargasite decomposed to orthoamphibole during pressure decrease and temperature increase, and orthoamphibole subsequently altered to chlorite during the ensuing retrograde event.”

May combine two claims.

Sample BC04 shows microstructures that reflect decompression at higher temperature, as the GASP reaction or resorbed garnet with corona of biotite and plagioclase.

“The sample also shows microstructures that reflect decompression at higher temperature, as the GASP reaction or resorbed garnet with corona of biotite and plagioclase (e.g., Waters 2019).”

• cites Waters 2019 sourceNot checked — no full text of the source

Probably not a substantial claim: may not pass S4 (based). May combine two claims.

The latter compositions could be affected by different degree of oxidation and thus bias chemical equilibrium.

“The latter compositions could be affected by different degree of oxidation and thus bias chemical equilibrium.”

May combine two claims.

Sillimanite, garnet rim and adjacent biotite and plagioclase are in equilibrium and record peak metamorphism.

“Consequently, sillimanite, garnet rim and adjacent biotite and plagioclase are in equilibrium and record peak metamorphism.”

Probably not a substantial claim: may not pass S3 (load-bearing).

Such P-T paths are classically associated with an overthrust model.

“Such P-T paths are classically associated with an overthrust model (seeEngland and”

• cites England andNot matched

  Couldn’t be matched to a paper in Crossref, so it can’t be checked.

Probably not a substantial claim: may not pass S3 (load-bearing), S4 (based).

The proposed P-T-trajectory for the three samples is typical for regions that have experienced crustal thickening.

“The proposed P-T-trajectory (Fig.9A) for the three samples is typical for regions that have experienced crustal thickening.”

May combine two claims.

Our results from geothermometry should be considered as minimum metamorphic temperature and might represent the blocking temperatures for Fe-Mg diffusion.

“Hence, our results from geothermometry should be considered as minimum metamorphic temperature and might represent the blocking temperatures for Fe-Mg diffusion.”