Straightchain geolipids of deep-sea sediments: Comparison of two extraction procedures

The effects of carbonate demineralization with acid upon geolipid extraction yields were assessed in samples of Pleistocene and Miocene deep-sea sediments. Distributions of free and bound geolipids were similar in extracts from demineralized and intact sediment. Although amounts of n-alkanes were no...

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Bibliographic Details
Published in:Organic geochemistry 1987, Vol.11 (3), p.221-227
Main Authors: Dunham, Keith W., Meyers, Philip A.
Format: Article
Language:English
Subjects:
Earth sciences
Earth, ocean, space
Exact sciences and technology
extraction methods
Geochemistry
n-alkanes
n-alkanoic acids
n-alkanols
sediments
Soil and rock geochemistry
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Summary:The effects of carbonate demineralization with acid upon geolipid extraction yields were assessed in samples of Pleistocene and Miocene deep-sea sediments. Distributions of free and bound geolipids were similar in extracts from demineralized and intact sediment. Although amounts of n-alkanes were not affected, n-alkanoic acids and n-alkanols experienced losses as a result of demineralization. The biogenic carbonates in these old but nonlithified sediments evidently harbor low concentrations of lipid material, and demineralization of sediments is not recommended for routine use without prior testing.
ISSN:0146-6380
1873-5290
DOI:10.1016/0146-6380(87)90025-8