Humans and Nature
Online ISSN : 2185-4513
Print ISSN : 0918-1725
ISSN-L : 0918-1725
Lithostratigraphy and Geological Structure of the Paleogene Kobe Group in the Southwestern Part of Tojo-cho, Kato-gun, Hyogo Prefecture, Southwest Japan
JOURNALS OPEN ACCESS

1998 Volume 9 Pages 9-18

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Abstract

The Paleogene Kobe Group in the Sanda Basin, southern Hyogo Prefecture, is composed mainly of non-marine clastic rocks, such as conglomerate, sandstone, mudstone and tuff. We made a stratigraphic survey of the group in the southwestern part of Tojo-cho, Kato-gun, Hyogo Prefecture, based on detailed tracing of tuffs. Four tuff layers were discerned within the Yokawa Formation of the group' the Ansei-ike, Yabu, Shinjo and Shikahori-ike Tuffs, in ascending order. As a result of our precise tracing of these tuff layers, we clarified that the Yokawa Formation in the study area inclines gently southward, although previous researchers have proposed a westward-inclining structure.

© 1998 Museum of Nature and Human Activities, Hyogo
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