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Title: Steranes and triterpanes in the Beacon Supergroup samples from southern Victoria Land in Antarctica

Abstract

Steranes and triterpanes in Beacon Supergroup samples (sedimentary rock and silicified wood) from Allan Hills and Carapace Nunatak of southern Victoria Land in Antarctica were studied to elucidate sources of organic materials, sedimentary paleoenvironment and thermal history after deposition. Relative abundances of C{sub 27}, C{sub 28} and C{sub 29} steranes and visual kerogen results of Beacon Supergroup samples from Allan Hills imply that organic materials in the sedimentary paleoenvironments are contributed mainly by vascular plants with some influence of microorganisms, while those of the Carapace Nunatak sample may be largely due to fern spores. The pristane/phytane and pristane/heptadecane ratios of the samples were generally close to unity and between 0.50 and 0.99, respectively, suggesting that the sedimentary paleoenvironment was shallow lacustrine with alternating oxic and anoxic conditions.

Authors:
;  [1];  [2];  [3];  [4]
  1. Univ. of Tokyo (Japan)
  2. Japan National Oil Corp., Tokyo (Japan)
  3. Shimane Univ. (Japan)
  4. National Institute of Polar Research, Tokyo (Japan)
Publication Date:
OSTI Identifier:
7014636
Resource Type:
Journal Article
Journal Name:
Geochimica et Cosmochimica Acta; (USA)
Additional Journal Information:
Journal Volume: 51:10; Journal ID: ISSN 0016-7037
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; 58 GEOSCIENCES; ANTARCTICA; SEDIMENTARY ROCKS; HYDROCARBONS; BIOLOGICAL MARKERS; MATURATION; KEROGEN; DEPOSITION; CARBON COMPOUNDS; CHEMICAL COMPOSITION; DIAGENESIS; GEOCHEMISTRY; GEOLOGIC FORMATIONS; GEOLOGIC HISTORY; MICROORGANISMS; ORGANIC MATTER; PLUTONIC ROCKS; SOURCE ROCKS; TEMPERATURE MEASUREMENT; ANTARCTIC REGIONS; BITUMINOUS MATERIALS; CARBONACEOUS MATERIALS; CHEMISTRY; IGNEOUS ROCKS; MATERIALS; ORGANIC COMPOUNDS; POLAR REGIONS; ROCKS; 020200* - Petroleum- Reserves, Geology, & Exploration; 580000 - Geosciences

Citation Formats

Matsumoto, Genki I, Watanuki, Kunihiko, Machihara, Tsutomu, Suzuki, Noriyuki, and Funaki, Minoru. Steranes and triterpanes in the Beacon Supergroup samples from southern Victoria Land in Antarctica. United States: N. p., 1987. Web. doi:10.1016/0016-7037(87)90147-5.
Matsumoto, Genki I, Watanuki, Kunihiko, Machihara, Tsutomu, Suzuki, Noriyuki, & Funaki, Minoru. Steranes and triterpanes in the Beacon Supergroup samples from southern Victoria Land in Antarctica. United States. doi:10.1016/0016-7037(87)90147-5.
Matsumoto, Genki I, Watanuki, Kunihiko, Machihara, Tsutomu, Suzuki, Noriyuki, and Funaki, Minoru. Thu . "Steranes and triterpanes in the Beacon Supergroup samples from southern Victoria Land in Antarctica". United States. doi:10.1016/0016-7037(87)90147-5.
@article{osti_7014636,
title = {Steranes and triterpanes in the Beacon Supergroup samples from southern Victoria Land in Antarctica},
author = {Matsumoto, Genki I and Watanuki, Kunihiko and Machihara, Tsutomu and Suzuki, Noriyuki and Funaki, Minoru},
abstractNote = {Steranes and triterpanes in Beacon Supergroup samples (sedimentary rock and silicified wood) from Allan Hills and Carapace Nunatak of southern Victoria Land in Antarctica were studied to elucidate sources of organic materials, sedimentary paleoenvironment and thermal history after deposition. Relative abundances of C{sub 27}, C{sub 28} and C{sub 29} steranes and visual kerogen results of Beacon Supergroup samples from Allan Hills imply that organic materials in the sedimentary paleoenvironments are contributed mainly by vascular plants with some influence of microorganisms, while those of the Carapace Nunatak sample may be largely due to fern spores. The pristane/phytane and pristane/heptadecane ratios of the samples were generally close to unity and between 0.50 and 0.99, respectively, suggesting that the sedimentary paleoenvironment was shallow lacustrine with alternating oxic and anoxic conditions.},
doi = {10.1016/0016-7037(87)90147-5},
journal = {Geochimica et Cosmochimica Acta; (USA)},
issn = {0016-7037},
number = ,
volume = 51:10,
place = {United States},
year = {1987},
month = {10}
}