Geochemistry of oceanic arc basement rocks of Sumisu Rift and Ohmachi Seamount
| Cobertura |
MEDIAN LATITUDE: 29.635417 * MEDIAN LONGITUDE: 140.471097 * SOUTH-BOUND LATITUDE: 29.075667 * WEST-BOUND LONGITUDE: 139.870100 * NORTH-BOUND LATITUDE: 30.916500 * EAST-BOUND LONGITUDE: 140.731333 * DATE/TIME START: 1989-05-06T16:45:00 * DATE/TIME END: 1989-05-13T22:45:00 |
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| Data(s) |
19/01/1992
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| Resumo |
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. |
| Formato |
application/zip, 5 datasets |
| Identificador |
https://doi.pangaea.de/10.1594/PANGAEA.774347 doi:10.1594/PANGAEA.774347 |
| Idioma(s) |
en |
| Publicador |
PANGAEA |
| Direitos |
CC-BY: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted |
| Fonte |
Supplement to: Yuasa, Makoto; Watanabe, Teruo; Kuwajima, Toshiaki; Hirama, Tadao; Fujioka, Kantaro (1992): Prehnite-pumpellyite facies metamorphism in oceanic arc basement from Site 791 in the Sumisu Rift, western Pacific. In: Taylor, B; Fujioka, K; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 126, 185-193, doi:10.2973/odp.proc.sr.126.127.1992 |
| Palavras-Chave | #126-791B; Al(IV); Al(VI); Al2O3; Aluminium (IV); Aluminium (VI); Aluminium oxide; Ca; Calcium; Calcium oxide; Calculated based on oxygen number; CaO; Depth; DEPTH, sediment/rock; Dredge; DRG; DRILL; Drilling/drill rig; Electron microprobe; Elements, total; Event; Fe2+; Fe2O3; Fe3+; FeO; GSJ-D731; GSJ-D794; Iron 2+; Iron 3+; Iron oxide, Fe2O3; Iron oxide, FeO; Joides Resolution; K; K2O; Label; Leg126; Magnesium; Magnesium oxide; Manganese; Manganese oxide; Mg; MgO; Mn; MnO; Na; Na2O; Ocean Drilling Program; ODP; Philippine Sea; Potassium; Potassium oxide; Samp com; Sample code/label; Sample comment; Si; Silicon; Silicon dioxide; SiO2; Sodium; Sodium oxide; Sum; Ti; TiO2; Titanium; Titanium oxide; total; Western Pacific; Y; Yttrium; Zirconium; Zr |
| Tipo |
Dataset |
