- 著者
-
大八木 規夫
井口 隆
- 出版者
- Tokyo Geographical Society
- 雑誌
- 地学雑誌 (ISSN:0022135X)
- 巻号頁・発行日
- vol.94, no.6, pp.436-445, 1985-12-25 (Released:2009-11-12)
- 被引用文献数
-
6
9
The main portion of Iwo-jima island consists of lava flows and pyroclastic rocks of trachy andesite, erupted and deposited in shallow sea, except the upper part of Suribachiyama, in 2600-2800 y.B.P. The island have been uplifting from about 800 y.B.P., followed by active faulting and change in coast lines.