<departmental bulletin paper>
Paleogene coal-bearing formations dispersed in the border of Fukuoka and Kumamoto Prefecture

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Abstract Paleogene coal-bearing formations sporadically distributed around the coal fields in northern Kyushu are examined. Their stratigraphic correlation suggests an expanse of the basins during the late sta...ge of the Paleogene in larger areas than those ever supposed. Immature mineral composition of sandstones indicates rapid erosion and short-term weathering of source rocks in a provenance close to the small-scale basins surrounded by mountainous relief.show more
Table of Contents はじめに
点在夾炭古第三系の分布と岩相
点在古第三系の地質時代と対比
北部九州古第三紀古地理に関する考察
まとめ

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Created Date 2021.10.14
Modified Date 2022.06.20

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