Distributions and sources of hopanes, hopanoic acids and hopanols in Miocene to Recent sediments from ODP Leg 190, Nankai Trough

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doi: 10.1016/j.orggeochem.2007.05.012
Author(s): Saito, Hiroyuki; Suzuki, Noriyuki
Author Affiliation(s): Primary:
Hokkaido University, Department of Natural History Sciences, Sapporo, Japan
Volume Title: Organic Geochemistry
Source: Organic Geochemistry, 38(10), p.1715-1728. Publisher: Elsevier, International. ISSN: 0146-6380
Note: In English. Based on Publisher-supplied data
Summary: The distributions and origins of hopanes, hopenes, hopanoic acids and hopanols in marine sediments from Sites 1175, 1176 and 1178, Ocean Drilling Program (ODP) Leg 190 (Nankai Trough) were investigated. The high concentrations of hopanoic acids and anhydrobacteriohopanetetrol in the sediments correspond well with a terrestrial contribution, as indicated by the abundance of higher plant-derived lipids and turbidite layers, suggesting that they are mainly transported from land. Bacteriohopanetetrol and hopanepolyols with short side chains were commonly detected down to about 400 m below sea floor. Diagenetic transformation from biohopanoids to geohopanoids can take place quickly after the death of bacteria. The presence of intact bacteriohopanetetrol in geological sediments tends to suggest an origin from in situ living bacteria, so bacteriohopanetetrol might be a potential life marker for deep sub-surface bacteria. Abstract Copyright (2007) Elsevier, B.V.
Year of Publication: 2007
Research Program: ODP Ocean Drilling Program
Key Words: 02 Geochemistry; Aromatic hydrocarbons; Cenozoic; Gas chromatography; Geochemistry; Hopanes; Hopanoids; Hydrocarbons; Leg 190; Marine sediments; Miocene; Nankai Trough; Neogene; North Pacific; Northwest Pacific; ODP Site 1175; ODP Site 1176; ODP Site 1178; Ocean Drilling Program; Organic compounds; Pacific Ocean; Quaternary; Sediments; Tertiary; Triterpanes; West Pacific
Coordinates: N323500 N323600 E1343900 E1343800
N323400 N323500 E1344000 E1343900
N324300 N324400 E1342900 E1342800
Record ID: 2009043217
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands