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Marine Dolomite of Unusual Isotopic Composition | | K L Russell
; K S Deffeyes
; G A Fowler
; R M Lloyd
; | | Date: |
13 Jan 1967 | | Journal: | Science, 155 (3759), 189-191 | | Abstract: | A piston core taken off of the coast of Oregon in 358 meters of water contained an indurated calcareous layer composed partly of dolomite with a composition Ca(58.7)Mg(41.3). Dolomites of this chemical composition are typical of the supratidal environment. However, the dolomite has isotopic composition delta0(18) = 5.8 per mille, deltaC(13) = 35.1 per mille relative to the Chicago PDB-I standard. The unusual carbon isotope ratio is similar to that of calcites produced as a byproduct of bacterial breakdown of hydrocarbons. | | Source: | PubMed, pmid17738221 doi: 10.1126/science.155.3759.189-a | | Services: | Forum | Review | Favorites | |
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