The DOI matches its Crossref record.
The geochemistry of rhenium and osmium in recent sediments from the Black Sea
Open accessAbstract
The Os isotopic composition of recent sediments from the Black Sea are reported with the concentrations of Re, Os, and major and minor elements. Osmium concentrations range from 0.23 to 0.69 ppb and Re concentrations range from 21 to 85 ppb. Concentrations of both elements are large relative to average crustal material and are positively correlated with organic carbon. 187Os186Os ratios range from 5.7 to 7.1; all of these values are less radiogenic than the estimated 187Os186Os ratio of seawater and average continental crust material. Variations in the Os isotopic composition of these sediments are attributed to mixing of a hydrogenous component (187Os186Os ratio between 7 and 9) and a less radiogenic detrital component (187Os186Os ratio between 1 and 4). A mixing model is used to determine the fraction of Os in the sediment associated with each component, and the burial fluxes of Re and Os in the Black Sea are calculated. In addition the data are used to estimate the magnitude of systematic error which such initial Os isotopic heterogeneity may introduce into Re-Os age determinations of ancient organic-rich sediments.
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.
Integrity signals
Registry
Cites
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.
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
Cited by
Geochemistry of Recent oxic and anoxic marine sediments: Implications for the geological record
Calvert, S. E., & Pedersen, T. F. (1993) · Marine Geology · doi:10.1016/0025-3227(93)90150-t · Cited by 1,679
The geochemistry of redox sensitive trace metals in sediments
Morford, J. L., & Emerson, S. (1999) · Geochimica et Cosmochimica Acta · doi:10.1016/s0016-7037(99)00126-x · Cited by 1,215
Algeo, T. J., & Lyons, T. W. (2006) · Paleoceanography · doi:10.1029/2004pa001112 · Cited by 1,194
The marine osmium isotope record
Peucker‐Ehrenbrink, B., & Ravizza, G. (2000) · Terra Nova · doi:10.1046/j.1365-3121.2000.00295.x · Cited by 371
Self-citationHannah, J. L., Bekker, A., Stein, H. J., Markey, R. J., & Holland, H. D. (2004) · Earth and Planetary Science Letters · doi:10.1016/j.epsl.2004.06.013 · Cited by 263
Metadata
- Authors
- Ravizza, G., Turekian, K. K., & Hay, B. J.
- Venue
- Geochimica et Cosmochimica Acta
- Publisher
- Elsevier BV
- Published
- 1991-12
- Volume
- 55
- Issue
- 12
- Pages
- 3741-3752
- ISSN
- 0016-7037 (ISSN-L)
- OpenAlex
- W1963487805
- Cited by
- 166
- References
- 0
- FWCI
- 4.64
- Type
- journal article
- Language
- en
- Open access
- hybrid
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: The geochemistry of rhenium and osmium in recent sediments from the Black Sea. https://app.cochat.ai/papers/10.1016/0016-7037(91)90072-d
- The paper
- Ravizza, G., Turekian, K. K., & Hay, B. J. (1991). The geochemistry of rhenium and osmium in recent sediments from the Black Sea. Geochimica et Cosmochimica Acta. https://doi.org/10.1016/0016-7037(91)90072-d
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.
