2024-03-28T09:30:48Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00001429
2023-01-16T04:49:58Z
336:337:338:345
An 85 ± 5 Ma CHIME age for the Agigawa welded tuff sheet in the oldest volcanic sequence of the Nohi Rhyolite, central Japan
Suzuki, Kazuhiro
3333
Nakazaki, Mineko
3334
Adachi, Mamoru
3335
1998-12
CHIME ages were determined for zircon and allanite from the Agigawa welded tuff sheet of the Nohi Rhyolite in the Kamado area, Gifu Prefecture. The CHIME zircon age is 85±5 Ma and the CHIME allanite age is 86±7 Ma. The Agigawa welded tuff sheet in the lowest volcanic sequence of the Nohi Rhyolite is chronologically identical with the post-tectonic Shinshiro Tonalite (85.2±3.3-86.0±4.7 Ma) and the Mitsuhashi Granodiorite (83.8±1.3-84.1±3.1 Ma) in the Ryoke metamorphic belt to the south of the Kamado area. Acidic plutonism and volcanism started simultaneously and widely at about 85 Ma after the high T/P Ryoke metamorphism at about 100 Ma.
国立情報学研究所で電子化したコンテンツを使用している。
departmental bulletin paper
Dept. of Earth and Planetary Sciences, Nagoya University
1998-12
The Journal of earth and planetary sciences, Nagoya University
45
17
27
http://hdl.handle.net/2237/2840
0919875X
eng