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Title Transcription
アキタ チイキ ニ ブンプスル シンダイサンケイ ノ ケロジェン ノ カイネディック トクセイ
Title Alternative
Kinetic characteristlcs of kerogen from Neogene formations in the Akita area, Northeast Japan
File
language
jpn
Author
Kowata, Nobuhiro
Nakayama, Kazuo
Description
It has been generally accepted that kerogen is the source matter of petroleum. Since Tissot and Welte(1978) had first presented the mathematical model based on kinetic characteristics of typical kerogen types (I, II, and III) , efforts of quantitative basin modeling had directed to evaluate how much oil were generated from kerogen during geologic past. However, it seems that geochemical aspect of each sedimentary basin is characterized uniquely in relation to its sedimentary environment.
The authors have developed a new method in order to determine the kinetic parameters (Genetic Potential : Xo, Activation Energy : E, Frequency Factor : A) for kerogen degradation from Rock-Eval data.
The method has been applied to the Akita Neogene basin, Notheast Japan. The Neogene formations may be divided into two groups according to their geochemical characteristics. Following standard stratigraphy in the Akita basin, the Nishikurosawa and Onnagawa Formations have the higher initial potential of petroleum than that of the Funakawa and Tentokuji Formations. It is suggested that the characteristics differs depending on the preservation of source materials affected by the sedimentary environments, such as the presence of Oxigen Minimum Layer with relation to the basin configuration and ventilation of sea water.
The method proposed here should be utilized to increase an accuracy in the quantitative evaluation of hydrocarbon generation from source rocks. The geochemical information derived by this method could be also applied to the paleoenvironmental analysis in addition to the lithological and biostratigraphic informations.
Journal Title
Geological reports of Shimane University
Volume
10
Start Page
63
End Page
74
ISSN
0287816X
Published Date
1991-07-30
NCID
AN00054980
Publisher
島根大学理学部地質学教室
Publisher Aalternative
Department of Geology, Faculty of Science, Shimane University
NII Type
Departmental Bulletin Paper
Format
PDF
Text Version
出版社版
OAI-PMH Set
Faculty of Science and Engineering
Remark
1-11 / 1982-1992
島田昱郎教授退官記念論誌集