Geochemistry of oceanic arc basement rocks of Sumisu Rift and Ohmachi Seamount
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| Autores principales: | , , , , |
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
| Publicado: |
PANGAEA
1992
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| _version_ | 1867168559125233664 |
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| author | Yuasa, Makoto Watanabe, Teruo Kuwajima, Toshiaki Hirama, Tadao Fujioka, Kantaro |
| author_facet | Yuasa, Makoto Watanabe, Teruo Kuwajima, Toshiaki Hirama, Tadao Fujioka, Kantaro |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Prehnite-pumpellyite facies metamorphism is described in the oceanic-arc basement rocks of Ocean Drilling Program Leg 126, Site 791 in the Sumisu Rift, western Pacific. Chemical variations of pumpellyite, epidote, chlorite, and prehnite are examined and paragenetic relations discussed. The metamorphism took place during the pre-rifting stage of an intraoceanic arc. During the backarc rifting stage, the geothermal gradient of the area was not as high as that of a spreading mid-oceanic ridge. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_774347 |
| institution | PANGAEA |
| language | en |
| publishDate | 1992 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Geochemistry of oceanic arc basement rocks of Sumisu Rift and Ohmachi Seamount Yuasa, Makoto Watanabe, Teruo Kuwajima, Toshiaki Hirama, Tadao Fujioka, Kantaro 126-791B; Dredge; DRG; DRILL; Drilling/drill rig; GSJ-D731; GSJ-D794; Joides Resolution; Leg126; Ocean Drilling Program; ODP; Philippine Sea; Western Pacific Prehnite-pumpellyite facies metamorphism is described in the oceanic-arc basement rocks of Ocean Drilling Program Leg 126, Site 791 in the Sumisu Rift, western Pacific. Chemical variations of pumpellyite, epidote, chlorite, and prehnite are examined and paragenetic relations discussed. The metamorphism took place during the pre-rifting stage of an intraoceanic arc. During the backarc rifting stage, the geothermal gradient of the area was not as high as that of a spreading mid-oceanic ridge. |
| title | Geochemistry of oceanic arc basement rocks of Sumisu Rift and Ohmachi Seamount |
| topic | 126-791B; Dredge; DRG; DRILL; Drilling/drill rig; GSJ-D731; GSJ-D794; Joides Resolution; Leg126; Ocean Drilling Program; ODP; Philippine Sea; Western Pacific |
| url | https://doi.org/10.1594/PANGAEA.774347 |