A novel sterane, 27-nor-24-methyl-5[alpha]-cholestane, in sediments

Journal Article · Thu Sep 01 04:00:00 EDT 1994 · Geochimica et Cosmochimica Acta; (United States)

DOI:https://doi.org/10.1016/0016-7037(94)90163-5· OSTI ID:6437518

Schouten, S; Damste, J S.S.; Leeuw, J.W. de ^[1]; Schoell, M ^[2]

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1. Netherlands Institute for Sea Research, Texel (Netherlands)
2. Chevron Petroleum Technology Co., La Habra, CA (United States)

A novel sterane, 27-nor-24-methyl-5[alpha]-cholestane, has been identified in sedimentary hydrocarbon mixtures by coinjection with an authentic standard. The C[sub 27] sterane occurs in silica-rich sediments from the Monterey Formation, USA, the Onnagawa Formation, Japan, and the Menilite Shale, Poland, and in bituminous marls from the Vena del Gesso basin, Italy. The compound seems to be biosynthetically related to 24-norcholestanes which co-occur in sometimes relatively high amounts. The [sup 13]C-content of the sterane in the Monterey Formation indicates an algal source similar to other steranes present in this sediment. A diatom or a dinoflagellate source is suggested for this compound.

• OSTI ID: 6437518
• Journal Information: Geochimica et Cosmochimica Acta; (United States), Journal Name: Geochimica et Cosmochimica Acta; (United States) Vol. 58:17; ISSN GCACAK; ISSN 0016-7037
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
580000* -- Geosciences
CHEMICAL ANALYSIS
DETECTION
HYDROXY COMPOUNDS
ORGANIC COMPOUNDS
QUANTITATIVE CHEMICAL ANALYSIS
SEDIMENTS
STEROIDS
STEROLS