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Chlorins in mid-Cretaceous black shales of the Demerara Rise: the oldest known occurrence

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Publication details

JournalOrganic Geochemistry
DatePublished - Aug 2011
Issue number7
Number of pages4
Pages (from-to)856-859
Original languageEnglish


Liquid chromatography, multi-stage mass spectrometry (LC-MSn) of acetone extracts confirms the presence of mesochlorophyllone in the mid-Cretaceous black shales of Demerara Rise. This finding represents molecular confirmation of the oldest primary chlorins in the geologic record and is evidence for a chlorophyll a source for bicycloalkanoporphyrins in the Demerara Rise black shales. (C) 2011 Elsevier Ltd. All rights reserved.

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