Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 571

The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.

Atmospheric Oxygen: Isotopic Composition and Solubility Fractionation

Kroopnick, P., Craig, H.·1972·Science

Abstract

Atmospheric oxygen has been found to be enriched in oxygen-18 by 23.5 ± 0.3 per mil relative to average ocean water (SMOW). Oxygen dissolved in seawater is further enriched in oxygen-18 by 0.85 per mil at 0°C. The temperature dependence of the solubility enrichment is given by ε (per mil) = 0.85— 0.010 t (°C). This result is in good agreement with earlier measurements of the solubility effect in distilled water.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1126/science.175.4017.54

Cites

2 of 2 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 2 references

Research works printed but not linked: 9

  1. BOTTINGA, Y, OXYGEN ISOTOPE FRACTIONATION BETWEEN CO2 AND WATER AND ISOTOPIC COMPOSITION OF MARINE ATMOSPHERIC CO2, EARTH AND PLANETARY SCIENCE LETTERS 5: 285 (1969).
  2. CRAIG, H, TRANSACTIONS OF THE AMERICAN GEOPHYSICAL UNION 51: 325 (1970).
  3. DOLE, M, ISOTOPIC COMPOSITION OF ATMOSPHERIC OXYGEN AND NITROGEN, GEOCHIMICA ET COSMOCHIMICA ACTA 6: 65 (1954). · DOI · Paper page
  4. KLOTS, C.E., J CHEM PHYS 38: 890 (1961).
  5. KROOPNICK, P.M., TRANSACTIONS OF THE AMERICAN GEOPHYSICAL UNION 52: 255 (1971).
  6. KROOPNICK P.M. THESIS U CALIFORNIA (1971).
  7. LANE G.A. THESIS NORTHWESTERN (1955).
  8. ONEIL, J.R., A METHOD FOR OXYGEN ISOTOPE ANALYSIS OF MILLIGRAM QUANTITIES OF WATER AND SOME OF ITS APPLICATIONS, JOURNAL OF GEOPHYSICAL RESEARCH 71: 4955 (1966). · DOI
  9. 10.1126/science.168.3928.247 · DOI

Cited by

See all 571

Metadata

Authors
Kroopnick, P., & Craig, H.
Venue
Science
Published
1972-01-07
Volume
175
Issue
4017
Pages
54-55
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2029741085
Cited by
571
References
2
FWCI
13.05
Type
journal article
Language
en
Open access
closed

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Atmospheric Oxygen: Isotopic Composition and Solubility Fractionation. https://app.cochat.ai/papers/10.1126/science.175.4017.54
The paper
Kroopnick, P., & Craig, H. (1972). Atmospheric Oxygen: Isotopic Composition and Solubility Fractionation. Science. https://doi.org/10.1126/science.175.4017.54

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.