Bulletin of the Geological Survey of Japan Vol.51 No.4 (2000)
Cover photograh | Table of Contents |
Cover photograh
A leading quarry in Iwase town, Ibaraki Prefecture, producing about 1 million tons of aggregate yearly which consists mainly of sandstone from Jurassic Yamizo Group. From the surface, forest soil (2-3m), weathered bedrock (10-50m) and fresh bedrock is observed in a vertical range of about 200m.
(Photoed by Yasuo KANAZAWA)
Table of Contents
| Title | Author | |
|---|---|---|
| Three kinds of Middle to Late Jurassic pelitic rocks from the Ashio Terrane at the Daigo district in the Yamizo Mountains, central Japan | Satoshi NAKAE (113-128) | 51-04_01.pdf(11,376KB) |
| Mineral composition and their origin of forest soils developed on sedimentary rocks in the southern Yamizo mountainous | Yoji SEKI, Yutaka KANAI, Hikari KAMIOKA, Katsuhiro TSUKIMURA, Satoshi HAMASAKI, Yasuo KANAZAWA and Terumasa NAKAJIMA (129-141) | 51-04_02.pdf(3,640KB) |
| Triassic and Jurassic radiolarians from the Tokuyama area, Mino terrane, central Japan | Satoru KOZIMA and Makoto SAITO (143-165) | 51-04_03.pdf(7,607KB) |
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