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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Science / Faculty of Science >
Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy >
Vol.XIX, Nos.1-2 >
The Basic Plutonic Rocks of the Hidaka Metamorphic Belt, Hokkaido. Part II : The Ameyama Layered Gabbros in the Tokachi Province
| Title: | The Basic Plutonic Rocks of the Hidaka Metamorphic Belt, Hokkaido. Part II : The Ameyama Layered Gabbros in the Tokachi Province |
| Authors: | Hashimoto, Seiji Browse this author | | Miyashita, Sumio Browse this author | | Maeda, Jin-ichiro Browse this author |
| Issue Date: | Mar-1979 |
| Publisher: | 北海道大学 |
| Journal Title: | 北海道大学理学部紀要 |
| Journal Title(alt): | Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy |
| Volume: | 19 |
| Issue: | 1-2 |
| Start Page: | 241 |
| End Page: | 255 |
| Abstract: | The occurrence of cumulus gabbro in the Hidaka Metamorphic Belt has been noted in the Western Zone of the Metamorphic belt as cumulus series of dunite-wehrlite-troctolite-olivine gabbro-anorthosite and various amphibolites which were obducted westward (Miyashita and Hashimoto, 1975). Besides the Western Zone gabbro series, many small bodies of cumulus gabbros have been known as fault bounded blocks throughout the whole metamorphic belt in the Axial and Eastern zones (Hashimoto, 1975). The Ameyama gabbro which occurs as an outlier of the metamorphic belt, is described and is compared with the Western Zone gabbros. Diabase which is accompanied by the Ameyama gabbro is also described. The chemical characteristic of the diabase show that it is nearly the same as the Hidaka Western Marginal Zone diabases but a slight difference in the trend of differentiation is revealed. |
| Type: | bulletin (article) |
| URI: | http://hdl.handle.net/2115/36687 |
| Appears in Collections: | Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy > Vol.XIX, Nos.1-2
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