Brief Review of Miocene Opening of the Japan Sea
Paleomagnetic Evidence from the Japan Arc
1986 年 38 巻 5 号 p. 287-294
詳細
1986 年 38 巻 5 号 p. 287-294
Paleomagnetic studies for igneous and sedimentary rocks of the latter part of the Tertiary have been facilitated in the Japan arc since the beginning of 1980. We review the paleomagnetic works of Northeast Japan and Southwest Japan, which have been interpreted that the Northeast Japan arc has rotated counter-clockwise through 47° around a vertical axis while the Southwest Japan arc has rotated clockwise through 56° between 21Ma and 11Ma. The rotation process of both arcs yields reasonable estimates of timing and mode of the opening of the Japan Sea.
