タイトルヨミ
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
タイトル別表記
Kinetic characteristlcs of kerogen from Neogene formations in the Akita area, Northeast Japan
ファイル
言語
日本語
著者
木幡 信弘
中山 一夫
内容記述(抄録等)
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.
掲載誌名
島根大学地質学研究報告
10
開始ページ
63
終了ページ
74
ISSN
0287816X
発行日
1991-07-30
NCID
AN00054980
出版者
島根大学理学部地質学教室
出版者別表記
Department of Geology, Faculty of Science, Shimane University
資料タイプ
紀要論文
ファイル形式
PDF
著者版/出版社版
出版社版
部局
総合理工学部
備考
1-11 / 1982-1992
島田昱郎教授退官記念論誌集