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Stable isotopes in the carbonates and kerogen from the Archaean stromatolites in Zimbabwe
Author(s) -
Abell Paul I.,
McClory Joseph
Publication year - 1987
Publication title -
geological journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.721
H-Index - 54
eISSN - 1099-1034
pISSN - 0072-1050
DOI - 10.1002/gj.3350220606
Subject(s) - kerogen , geology , archean , isotopes of carbon , geochemistry , carbon fibers , isotope , isotopes of oxygen , stable isotope ratio , total organic carbon , isotopic ratio , mineralogy , paleontology , source rock , environmental chemistry , chemistry , materials science , physics , structural basin , quantum mechanics , composite number , composite material
A detailed isotopic analysis of a half metre core from the Cheshire Formation stromatolites of the Belingwe greenstone belt, Zimbabwe, is presented, including carbon isotopic ratio measurements on the kerogen fraction, and carbon and oxygen isotope ratio measurements on the limestone. An interpretation of these ratios is offered which views the limestone as primary, having been precipitated in fairly low energy environments, and entrapping varying amounts of organic debris in a warm marine embayment.