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Methane-derived marine carbonates of pleistocene age

Science

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Abstract

In some calcium carbonate-bearing sandstones from the edge of the continental shelf off the northeast United States, the ??C13 range is from -30 and -60 per mil for both aragonite and high-magnesium calcite. The ??C13 of co-existing shells of Modiolus sp. is normal (+1.7 to -2.7 per mil). The ??O18 values of around +3.5 per mil in all samples suggest deposition at temperatures around 0??C. Quaternary methane oxidized either chemically or microbiologically to carbon dioxide is the probable source of carbon in these carbonates.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Methane-derived marine carbonates of pleistocene age
Series title:
Science
Volume
165
Issue:
3894
Year Published:
1969
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Science
First page:
690
Last page:
692
Number of Pages:
3