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Vol.XIX, Nos.1-2 >

Thermal Alteration of Kerogen by Basalt Dykes Intruded in the Oligocene Poronai Formation, Hokkaido, Japan

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Title: Thermal Alteration of Kerogen by Basalt Dykes Intruded in the Oligocene Poronai Formation, Hokkaido, Japan
Authors: Akiyama, Masahiko Browse this author
Hirata, Shin-ichi Browse this author
Ujiié, Yoshihiro Browse this author
Issue Date: Mar-1979
Publisher: 北海道大学
Journal Title: 北海道大学理学部紀要
Journal Title(alt): Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy
Volume: 19
Issue: 1-2
Start Page: 149
End Page: 156
Abstract: Thirteen kerogens separated from the siltstone of the Oligocene Poronai Formation were analysed to examine the thermal alteration effect by the basalt intrusion. This intrusion gave a drastic decrease of kerogen content in the siltstone within a meter from the contact. At the proximity of the basalt the increase of H/C and of n-alkanes generated from the kerogen by laboratory pyrolysis suggests hydrogenation to the kerogen by superheated steam provided from the igneous intrusion.
Type: bulletin (article)
URI: http://hdl.handle.net/2115/36678
Appears in Collections:Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy > Vol.XIX, Nos.1-2

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