The DOI matches its Crossref record; 75 of the 75 references it cites were found in a registry or an index; none of the 42 sources its claims cite is checked for support yet.
Compilation of stable isotope fractionation factors of geochemical interest
Open accessAbstract
Phase equilibrium relations of the common rock-forming oxides except water, by G
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The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“This latter SMOW has been analyzed in many laboratories, and the oxygen isotope composition has been found by many investigators to be identical to the originally defined SMOW within the limits of analytical uncertainty (±0.05°/oo)-”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > OXYGEN
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“However, several recent determinations of this factor indicate that the factor is probably larger than 1.0407 (table 2).”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > OXYGEN
Load-bearingStrength:hedged· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesThe paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“The SO18 value of NBS-28 reported to the authors from several laboratories indicate a range between 9.5 and 9.9.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > OXYGEN
Strength:hedged· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“Recent determinations indicate that the latter value is closer to-28.10 (Mook, 1971;Letolle, 1971;F. C. Tan, unpub. data, 1973;J. D. Gleason and I. Friedman, unpub. data, 1973).”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > CARBON
What the sources say
- Not checked — no full text of the sourcecites Mook, 1971 source
- Not matchedcites Letolle, 1971
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- Not matchedcites F. C. Tan, unpub. data, 1973
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
Strength:hedged· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesThe paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“When the results of deuterium analyses of the four I.A.E.A. standard waters were compared several years ago, significant discrepancies in 8 D were apparent.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > HYDROGEN
Strength:plain· not yet calibratedn = 4Tests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“NOTE.The average of all the published analyses, excepting the value of 1.0424 (Staschewski, 1964), is 1.0412.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > OXYGEN
What the sources say
- Not matchedcites Staschewski, 1964
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passes- Not matched
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“If the acid fractionation factor of 1.01109 is used for dolomite, this value becomes +2.3.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > FIGURE 26
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesThe paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“The constant dolomite-calcite fractionation of +3.1 in the temperature range 25° to 79°C is calculated from data on synthesized protodolomites, using the acid fractionation factor of 1.01025 for both carbonates.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > FIGURE 26
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“The plagioclase-magnetite curves formulated by Anderson, Clayton, and Mayeda (1971) are virtually identical to those shown in the figure.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > TEMPERATURE, IN DEGREES CELSIUS
What the sources say
- Not matchedcites Anderson, Clayton, and Mayeda (1971)
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passes- Not matched
In the paper
“The correct statement should have been that the SO 18 value of the CO 2 produced by reaction of 100 percent H 3 PO4 with PDB calcite at 25°C is +0.22 per mil relative to CO2 equilibrated at 25°C with SMOW water.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > OXYGEN
What the sources say
- Not matchedcites Craig (1961)
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passes- Not matched
- It may state two separate claims as one. 14
- Probably not a substantial claim. 27
- The quote only partly states this claim. 2
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“That is, merely subtracting S values will be an excellent approximation to the per mil fractionation and identical to it within the limits of analytical error for values of both A 's and 6 's, which are less than about 10.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > 3. 103 lna AND THE A VALUE
Strength:boosted· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
In the paper
“Recent measurements by Coplen and Clayton (1973) on a high-resolution mass spectrometer (Hs”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > HYDROGEN
What the sources say
- Not checked — no full text of the sourcecites Coplen and Clayton (1973) source
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
In the paper
“The I.A.E.A. sample of water called SMOW has been analyzed in several laboratories and is not identical in D/H ratio to the defined SMOW.Coplen and Clayton (1973), for example, report a 8D value of -1.2.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > HYDROGEN
What the sources say
- Not checked — no full text of the sourcecites Coplen and Clayton (1973) source
Strength:plain· not yet calibratedSingle caseTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Friedman has recently measured the hydrogen isotope compositions of 4 separate samples of NBS-1 that he received over the past 20 years and found differences in 8D as high as 8°/oo.Therefore some of the interlaboratory differences observed may depend on the batch of NBS-1 standard utilized.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > HYDROGEN
Tests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“To relate 8 O 18 values of calcite on the PDB and SMOW scales, the following expressions are used: 8 sMow=1 -030868 PDB + 30.86, and 8 PDB=0.970068SMOW-29.94.These relationships are based on the following fractionation factors at 25°C: 1.0412 for CO2-H2O, 1.01025 for H 3PO4-liberated CO2 from calcite and, 1.00022 for H 3PO4-liberated CO2 from PDB-CO2 in equilibrium with SMOW.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > OXYGEN
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“There is some indication that random and significant variations in 5O18 exist between different samplings of the main storage vessels of the NBS water standards.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > OXYGEN
Strength:hedged· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✗ Based: failsProbably not a substantial claim. The paper’s conclusions may not depend on it. The paper may give no reason why it holds.
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“NOTE.Sodium and potassium feldspar have identical isotopic properties within the limits of analytical uncertainty.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > FIGURE 48
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✗ Based: failsProbably not a substantial claim. The paper’s conclusions may not depend on it. The paper may give no reason why it holds.
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“Potassium feldspar has isotopic properties identical to albite within the limits of analytical error.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > TEMPERATURE, IN DEGREES CELSIUS
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✗ Based: failsProbably not a substantial claim. The paper’s conclusions may not depend on it. The paper may give no reason why it holds.
None of the sources cited for this claim have been checked yet.
In the paper
“The crossover point (10s Ina = 0) occurs at 130°C, and there is a reversal at 425°C 10s In a--48).”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > FIGURE 48
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
None of the sources cited for this claim have been checked yet.
In the paper
“Additional data on these systems by O'Neil and Truesdell (written commun., 1976) are not shown but are in agreement with those of Sofer and Gat (1972) and of Taube (1954).”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > TEMPERATURE, IN DEGREES CELSIUS
What the sources say
- Not matchedcites O'Neil and Truesdell (written commun., 1976)
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- Not matchedcites Sofer and Gat (1972)
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
- Not checked — no full text of the sourcecites Taube (1954) source
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
- Not matched
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“Note the crossover point at 192°C.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > FIGURE 48
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“NOTE.Muscovite and paragonite have identical isotopic properties within the limits of analytical uncertainty.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > TEMPERATURE, IN DEGREES CELSIUS
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✗ Based: failsProbably not a substantial claim. The paper’s conclusions may not depend on it. The paper may give no reason why it holds.
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“In the oxygen isotope analysis of carbonates, identical physical and chemical conditions must be operative during preparation of standard and sample so that systematic errors will cancel.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > OXYGEN
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
In the paper
“Equilibrium fractionation factors that measure the distribution of a rare stable isotope between two species have been determined directly by laboratory experiments and also by calculations using the methods of statistical thermodynamics.They have also been inferred from regularities in the stable isotope ratios of natural materials.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > INTRODUCTION
What the sources say
- Not checked — no full text of the sourcecites Urey (1947) source
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
In the paper
“The 8 values given by Craig (1957) for these standards are -1.06 and -27.79, respectively.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > CARBON
What the sources say
- Not checked — no full text of the sourcecites Craig (1957) source
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“The H3 + contribution to the mass 3 beam cannot be determined precisely.Consequently, when this contribution is large ( > 10 percent), the correction may result in incorrect 8 values.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > HYDROGEN
Strength:hedged· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“As geothermometers, stable isotope fractionation factors continue to show considerable promise for a variety of geologic environments.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > Remarks
Load-bearingStrength:plain· not yet calibratedTests✓ Asserted: passes✗ Checkable: fails✓ Load-bearing: passes✓ Based: passesProbably not a substantial claim. It may be too vague to check against evidence.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“It is encouraging that the two curves are so similar and that the slope for this important system is fairly certain.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > Remarks
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“This curve should show a reversal of slope at low temperature similar to that shown by the magnetite-water system.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > FIGURE 48
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✗ Based: failsProbably not a substantial claim. The paper’s conclusions may not depend on it. The paper may give no reason why it holds.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“There is enough consistency in the natural data to warrant future investigations aimed at reconciling some of the discrepancies in the experimental data.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > Remarks
Load-bearingStrength:plain· not yet calibratedTests✓ Asserted: passes✗ Checkable: fails✓ Load-bearing: passes✓ Based: passesProbably not a substantial claim. It may be too vague to check against evidence.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“However, some of the discrepancies among the experimental curves are undoubtedly the result of nonequilibrium or kinetic isotope effects, which can often be difficult to recognize.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > STABLE ISOTOPE FRACTIONATION CURVES
Strength:plain· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“This curve is based on measurements at only two temperatures, 350° and 400°C.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > FIGURE 26
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“Sulfur hexafluoride has some advantages over sulfur dioxide for sulfur isotopic analysis.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > SULFUR
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✗ Based: failsProbably not a substantial claim. The paper’s conclusions may not depend on it. The paper may give no reason why it holds.
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“This curve is a least-squares fit to the authors' data.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > FIGURE 26
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it. The quote only partly states this claim.
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“Temperatures can be read to ±0.5°C on some curves and to ±5°C on others.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > STABLE ISOTOPE FRACTIONATION CURVES
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“The expressions are independent of the standard used.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > FIGURES 2-49 FIGURE 2
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“The calculated fractionation factors for gaseous systems are among the most reliable factors presented here.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > Remarks
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✗ Based: failsProbably not a substantial claim. The paper’s conclusions may not depend on it. The paper may give no reason why it holds.
None of the sources cited for this claim have been checked yet.
In the paper
“Except for the feldspars and micas (O'Neil and Taylor, 1967Taylor, , 1969)), rutile (Addy and Garlick, 1974), and magnetite (Bertenrath and Friedrichsen, 1975) the factor 1.0407 was used in the determination of the isotopic compositions of the waters used in all the experiments.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > STABLE ISOTOPE FRACTIONATION CURVES
What the sources say
- Not checked — no full text of the sourcecites O'Neil and Taylor, 1967
- Not checked — no full text of the sourcecites Addy and Garlick, 1974 source
- Not matchedcites Bertenrath and Friedrichsen, 1975
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“The quartz-magnetite pair is potentially the most useful, and certainly the most sensitive, pair for oxygen isotope thermometry”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > Remarks
Strength:hedged· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
In the paper
“The curves proposed by Bottinga andJavoy (1973, 1974) are presented, inasmuch as they are self-consistent and take into account much of the experimental work and theoretical considerations.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > Remarks
What the sources say
- Not matchedcites Bottinga and Javoy (1973, 1974)
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
Load-bearingStrength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
- Not matched
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“This is an extrapolation of their lower temperature data.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > TEMPERATURE, IN DEGREES CELSIUS
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it. The quote only partly states this claim.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Presenting all these data together uncritically calls attention to the problem areas that require resolution.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > Remarks
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✗ Checkable: fails✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. It may be too vague to check against evidence. The paper’s conclusions may not depend on it.
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“The Solenhofen Limestone standard is actually too fine grained to be a good and lasting standard.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > CARBON
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✗ Based: failsProbably not a substantial claim. The paper’s conclusions may not depend on it. The paper may give no reason why it holds.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“It is clear from reading the details given in the original references that some systems have been examined more thoroughly than others.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > Remarks
Strength:boosted· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
In the paper
“NOTE.8 W is incorrectly defined in the original paper.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > T E M P E R A T U R E , IN DE GRE E S CELSI US, FOR 8O 18
What the sources say
- Not matchedcites Longinelli and Nutti (1973)
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
- Not matched
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“Fractionations (103lna) can normally be read to ±0.2 per mil.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > STABLE ISOTOPE FRACTIONATION CURVES
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“The mass spectrometric corrections for sulfur dioxide are large”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > SULFUR
Load-bearingStrength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✗ Based: failsProbably not a substantial claim. The paper may give no reason why it holds.
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“The curves have been extrapolated beyond the temperature ranges investigated and even beyond the range of stability of some minerals.This was done to provide rough estimates when no other information is available.”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > STABLE ISOTOPE FRACTIONATION CURVES
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“The stable isotope relations are somewhat obscured by experimental difficulties and nonequilbrium effects”
§ DATA OF GEOCHEMISTRY, SIXTH EDITION > Remarks
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesProbably not a substantial claim.
The authors state this as an assumption.
The fractionation at 25°C is 40.37 for the CO2-H2O system.
“The data have been plotted assuming that the fractionation at 25°C is 40.37.”
The authors state this as an assumption.
For purposes of geothermometry, Δ_quartz-illmenite = 0.95 Δ_quartz-magnetite.
“Based on natural data, it is commonly assumed for purposes of geothermometry that Aquam-illimenite = 0.95 Aquartz.magnetite .”
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
The source backs part of the claim, not all of it — or backs it for a different population, condition or comparison.
In the citing paper
“the paleotempertaure under which the calcite have precipitated is interpreted to have occurred between approximately 13˚C to ±33˚C (from analyzed samples; see calculation above).”
From Isotopes (13C and 18O) Geochemistry of Lower Triassic Montney Formation, Northeastern British Columbia, Western Canada (2017) · cites this paper as [35]
Experimental — accuracy not yet measuredThe cited source says what the claim attributes to it.
In the citing paper
“This pattern is consistent with temperature-dependent δ 18 O depletion on carbonate minerals at elevated temperatures [103-105].”
From Clumped Isotope Reordering and Kinetic Differences in Co-Hosted Calcite and Dolomite Minerals throughout Burial Diagenesis and Exhumation (2023) · cites this paper as [104]
The check wasn’t confident either way, so it gives no verdict — never disputed.
In the citing paper
“Therefore, paleotemperature of precipitation of calcite during the Lower Triassic Period in the study area is ~32˚C.”
From Isotopes (13C and 18O) Geochemistry of Lower Triassic Montney Formation, Northeastern British Columbia, Western Canada (2017) · cites this paper as [35]
Experimental — accuracy not yet measuredThe check wasn’t confident either way, so it gives no verdict — never disputed.
In the citing paper
“The anoxic condition generate high alkalinity, which increases the total dissolved carbon that causes calcite to precipitate from pore-water, thereby biased towards light δ 13 C PDB values during early diagenesis [35].”
From Isotopes (13C and 18O) Geochemistry of Lower Triassic Montney Formation, Northeastern British Columbia, Western Canada (2017) · cites this paper as [35]
Experimental — accuracy not yet measured
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“Major sea ice formation can increase the d(18)O value of seawater at a greater rate than the d(2)H value, however fractionation factors between ice and water are of similar magnitude to fractionation factors between water and vapor during evaporation [Friedman and O’Neil, 1977], and should not result in such high d(18…”
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“These curves have been calculated using both the equations of Craig (1965) and Friedman and O'Neil (1977), taking account of the variation in temperature with depth.”
MethodResultApplications of Light Stable Isotopes (C, O, H) in the Study of Sandstone Diagenesis: A Review
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“…models have been proposed to calcite-H2O and dolomite-H2O systems at various temperature ranges in the last few decades (Clayton et al., 1968; Fritz and Smith, 1970; Northrop and Clayton, 1966; Matthews and Katz, 1977; Friedman and O’Neil, 1977; Vasconcelos et al., 2005; Schmidt et al.,…”
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“…origins, including microbial oxidation of organic matter and methane whereas the stable oxygen isotope composition (d18O) of a precipitated carbonate depends mainly on the isotope composition, salinity and temperature of the host fluid (Rankamma 1963; Friedman and O’Neil 1977; Leeder 1982).”
BackgroundMethodInfluentialOrigin of dolomite of the lower Cambrian Longwangmiao Formation, eastern Sichuan Basin, China
Ren, Y., Zhong, D., Gao, C., Sun, H., Peng, H., Zheng, X., & Qiu, C. (2017) · Carbonates and Evaporites · doi:10.1007/s13146-017-0409-7 · Cited by 18
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The Stable Isotopic Composition of Atmospheric CO2
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Stratigraphy, Stable Isotopes, and Hydrocarbon Potential of the Aptian Shuaiba Formation, U.A.E.
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“δ(18)Owater is reported in the VSMOW scale that can be converted to the VPDB scale by the equation (Friedman and O'Neil, 1977): δ(18)Owater (VPDB)1⁄4 0.”
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“The 18O fractionation factor used for the calcite–H2PO4 reaction was 1.01025 (Friedman and O’Neil, 1977).”
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“Yet, variations of the isotopic composition of Cyprididae, Candoninae, and to a lesser degree Cytherideidae, are higher than analytical uncertainties and may be linked to real variations of environmental conditions rather than discrepancies due to analytical errors, differences due to the use of different fractionatio…”
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“Experimental work has derived fractionation factors for calcite (Friedman & O'Neil, 1977).”
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“…oxygen isotope compositions can not only indicate the carbon source (Macaulay et al. 1993; Fayek et al. 2001) and estimate diagenetic temperatures (Friedman and O’Neil 1977), but also distinguish marine and continental environments and provide qualitative information on diagenetic intensity…”
BackgroundStable hydrogen isotopes in iron oxides: 111. Nonstoichiometric hydrogen in goethite
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Paleoclimatology of the casas del rincón villafranchian series (Spain) from stable isotope data
Leone, G. (1985) · Palaeogeography Palaeoclimatology Palaeoecology · doi:10.1016/0031-0182(85)90005-7 · Cited by 18
Thermal evolution of sedimentary basins in Alaska
Howell, D. G. (1996) · doi:10.3133/b2142 · Cited by 18
Zhengjie, Q., Hongrui, F., Liu, X., Bojie, W., Fangfang, H., Kuifeng, Y., Shuanglong, G., & Fengchun, Z. (2015) · Acta Geologica Sinica - English Edition · doi:10.1111/1755-6724.12475 · Cited by 17
Diagenetic and oil migration history of the Kimmeridgian Ascla Formation, Maestrat Basin, Spain
Rossi, C., Goldstein, R. H., Marfil, R., et al. (2001) · Marine and Petroleum Geology · doi:10.1016/s0264-8172(01)00008-3 · Cited by 17
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Zhu, W., Zhong, H., Yang, Y.-J., et al. (2015) · Ore Geology Reviews · doi:10.1016/j.oregeorev.2015.12.011 · Cited by 17
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“The oxygen isotopic compositions of hydrothermal fluids in equilibrium with quartz were calculated by extrapolating the following fractionation formula: 1000lnαQ– H2O=3.38×10 6/T2 3.40 (Friedman and O’Neil, 1977).”
MethodInfluential
Metadata
- Authors
- Friedman, I., & O'Neil, J. R.
- Venue
- Professional Paper
- Publisher
- US Geological Survey
- Published
- 1977
- ISSN
- 1044-9612 (ISSN-L)
- 2330-7102
- OpenAlex
- W1547907389
- Cited by
- 2,691
- References
- 43
- Citations by year
- 2026: 17 · 2025: 58 · 2024: 47 · 2023: 67 · 2022: 73 · 2021: 87 · 2020: 111 · 2019: 99 · 2018: 86 · 2017: 90 · 2016: 84 · 2015: 88 · 2014: 71 · 2013: 83 · 2012: 84
- Type
- report
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- USGS professional paper (publishedVersion)
- Topics
- Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › Geological and Geochemical Analysis
- Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › Groundwater and Isotope Geochemistry
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Stratigraphy of Fossils
- Keywords
- stable isotope fractionation, fractionation factor, isotope geochemistry, mass-dependent fractionation, mass-independent fractionation
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