Oxygen-isotope composition of diagenetic calcite in organic-rich rocks: evidence for 18 O depletion in marine anaerobic pore water

E. Sass, A. Bein, A. Almogi-Labin

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131 Scopus citations

Abstract

Upper Cretaceous organic-rich carbonates in Israel contain benthonic foraminifera and varying amounts of early diagenetic infilling of sparry calcite. Relates to light oxygen compositions of the diagenetic calcite to depletion of 18 O in pore water of normal salinity, a direct consequence of organic matter decomposition in the sulfate-reducing zone. -from Authors

Original languageEnglish
Pages (from-to)839-842
Number of pages4
JournalGeology
Volume19
Issue number8
DOIs
StatePublished - 1991
Externally publishedYes

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