Methane and other hydrocarbon gases in marine sediments

Author(s): Claypool, George E.; Kvenvolden, Keith A.
Author Affiliation(s): Primary:
U. S. Geol. Surv., Denver, CO, United States
Volume Title: Annual Review of Earth and Planetary Sciences
Source: Annual Review of Earth and Planetary Sciences, Vol.11, p.299-327. Publisher: Annual Reviews, Palo Alto, CA, United States. ISSN: 0084-6597 CODEN: AREPCI
Note: In English. 115 refs.; 3 tables
Summary: Hydrocarbon natural gas in oceanic sediments has multiple mechanisms of origin, but the most important is C, generation by microbiological decomposition of organic matter. Profiles of delta 13C, delta 13C of SIGMA CO2, and C2/C1 ratios in the intermediate sub-bottom depth range (50-1000 m) indicate that microbiological C1 generation is widespread in anoxic, sulphate-depleted oceanic sediments. C1 of thermogenic origin (along with C2, etc.) becomes a more important component of the gas mixture with increasing depth of burial.
Year of Publication: 1983
Research Program: DSDP Deep Sea Drilling Project
Key Words: 02 Geochemistry; Aliphatic hydrocarbons; Alkanes; C-13/C-12; Carbon; Deep Sea Drilling Project; Gases; Genesis; Geochemistry; Hydrocarbons; Isotopes; Marine sediments; Methane; Organic compounds; Organic materials; Processes; Review; Sediments; Stable isotopes
Record ID: 1983043782
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom

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