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The DOI matches its Crossref record; 43 of the 43 references it cites were found in a registry or an index.

Structural analysis of an area of ductile deformation between the Murray Fault and the Grenville Front Boundary Fault near Coniston, Ontario

Rousell, D.H., James, R.S., Roth, T.M.·2025·Canadian Journal of Earth Sciences
DOI 10.1139/cjes-2023-0010
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Abstract

Zones of mylonites are a prominent feature of rocks that occur at the Grenville Front in central Ontario. They represent periods of northwest-directed thrusting during the Mesoproterozoic, the latest period due to the Grenville Orogeny at ∼1.0 Ga. We describe the strain and folding of a 300 m wide zone of mylonites southeast of Coniston, Ontario that occur in the foreland to the Grenville Province. They are greenschist facies quartz mylonites and quartz feldspar mylonites formed in the upper crust from sandstones and granites in the Southern Province. They are bounded to the north and south by the Murray Fault and Grenville Front Boundary Fault, respectively, steeply dipping reverse faults, which are post-mylonitization in age. The latter fault marks the southern boundary of the foreland mylonites with zones of mylonite in high grade, lower crustal schists, and gneisses of the Grenville Province. The Murray Fault marks their northwestern boundary against a middle Proterozoic metamorphic terrane. Shape fabric measurements of quartz indicate that strain intensity is random across the mylonite zone. Open angle quartz c-axis fabrics, the dominance of subgrain rotation recrystallization of quartz, and the metamorphic paragenesis quartz–muscovite–chlorite indicate that the mylonites formed at low greenschist facies temperature (350–430 °C). The measured variation in strain is attributed to variations in strain rate and water weakening. The mylonites are folded; hinge lines and axial planar stretching lineations plunge southeast perpendicular to the Grenville Front. The mylonites are similar to those that occur in the foreland of the Moine Thrust (northwest Scotland) and the Munsiari Thrust (northwest India).

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Crossref · 10.1139/cjes-2023-0010

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Research works printed but not linked: 21

  1. Bethune K.M., 1997, Canadian Mineralogist, 35, 1191
  2. Brown J.M., 1968, Structure and origin of the Grenville Front south of Coniston Ontario
  3. Davidson A., 1994, Radiogenic age and isotopic studies, Rep. 8, 107
  4. 10.1130/0016-7606(1997)109%3c0268:doamco%3e2.3.co;2 · DOI
  5. Griggs D.T., 1964, Transactions of the American Geophysical Union, 45, 102
  6. Henderson J.R., 1967, Structural and petrological relations across the Grenville Province–Southern Province Boundary, Sudbury District, Ontario (Canada)
  7. Krogh T.E., 1987, Mafic dyke swarms, 147
  8. Kwak T.A.P., 1968, Metamorphic petrology and geochemistry across the Grenville Province, Southern Province boundary, Dill Township, Sudbury, Ontario
  9. LaTour T.E., 1979, The nature and origin of the Grenville Front near Coniston, Ontario
  10. Law R.D., 2010, Continental tectonics and mountain building—the legacy of Peach and Horne, 543
  11. Lightfoot P.C., 1996, Ontario Geological Survey, Study 58, 80
  12. Murphy E.I., 2001, Open File Report 6041, 132
  13. Passchier C.W., 2005, Microtectonics
  14. 10.1130/0016-7606(1997)109%3c0841:mcdats%3e2.3.co;2 · DOI
  15. Rivers T., 1986, The Grenville Province, 31
  16. Rivers T., 2012, In Tectonic styles in Canada: the LITHOPROBE Perspective. Edited by, 97
  17. Rousell D.H., 1991, The geometry of naturally deformed rocks, The John Ramsay Meeting, Mitteilungen aus den Geologisches Institut ETH Zurich, 207
  18. Spear F.S., 1995, Mineralogical Society of America Monograph 1, 799
  19. Sullivan R.W., 1993, Radiometric age and isotopic studies, Report 7, 45
  20. Van Schmus W.R., Bickford M.E. 1993. Transcontinental Proterozoic Provinces: location and extent. In Precambrian: conterminous U.S. Edited by Reed Jr. J.C., Bickford M.E., Houston R.S., Link P.K., Rankin D.W., Sims P.K., Van Schmus W.R. Geological Society of America Geology of North America, C-2. pp. 172–176.
  21. Wynne-Edwards H.R., 1972, Variations in tectonic styles in Canada, 263

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Metadata

Authors
Rousell, D. H., James, R. S., & Roth, T. M.
Affiliations
Laurentian University (CA)
ORCID
James, R.S.
Venue
Canadian Journal of Earth Sciences
Publisher
Canadian Science Publishing
Published
2025-03-01
Volume
62
Issue
3
Pages
549-568
ISSN
  • 0008-4077 (ISSN-L)
  • 1480-3313
DOI
10.1139/cjes-2023-0010
OpenAlex
W4407723521
Cited by
0
References
43
FWCI
0.00
Type
journal article
Language
en
Open access
closed
Licence
www.nrcresearchpress.com/page/about/CorporateTextAndDataMining (tdm)
Locations
Canadian Journal of Earth Sciences (publishedVersion)
Funders
  • Laurentian University Research Fund for Retired Members
  • Geological Survey of Canada
Topics
  • Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › Geological and Geochemical Analysis
  • Physical Sciences › Earth and Planetary Sciences › Geology › Geological Studies and Exploration
  • Physical Sciences › Earth and Planetary Sciences › Geophysics › Geological and Geophysical Studies Worldwide
Keywords
mylonite, ductile deformation, Grenville Front, Grenville orogeny, quartz c-axis fabric, strain rate, water weakening, folding, foreland thrusting, Southern Province

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