Mineralogy and geochemistry of volcanic ash at Japan Trench from DSDP Legs 87 and 57
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| Format: | Dataset Open Access |
| Sprache: | en |
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PANGAEA
1986
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| _version_ | 1867167669171519488 |
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| author | Fujioka, Kantaro Cadet, Jean-Paul Morin, Jean-Claude |
| author_facet | Fujioka, Kantaro Cadet, Jean-Paul Morin, Jean-Claude |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Volcanogenic sediments were obtained from Site 584, located on the midslope of the Japan Trench. Occurrences of volcanic ash in the diatomaceous mudstones increase within sediments dated 6-3 Ma. The frequency pattern and the sediment accumulation rate obtained at Site 584 are similar to those of Site 440 and to those of Sites 438 and 439, located on the upper slope basin. Explosive volcanism increased during the Pliocene and late Miocene in relation to the intrusion of Tertiary granites and uplift of the Tohoku Arc (northeastern Japan Arc). Hygromagmaphile element concentration shows that the glass does not belong to a unique series, and a comparison with Nankai Trough data distinguishes at least two different evolutionary lines. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_801675 |
| institution | PANGAEA |
| language | en |
| publishDate | 1986 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Mineralogy and geochemistry of volcanic ash at Japan Trench from DSDP Legs 87 and 57 Fujioka, Kantaro Cadet, Jean-Paul Morin, Jean-Claude 57-438A; 57-438B; 57-439; 57-440B; 87-582B; 87-583A; 87-584; 87-584A; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg57; Leg87; North Pacific/BASIN; North Pacific/TRENCH; North Pacific Ocean Volcanogenic sediments were obtained from Site 584, located on the midslope of the Japan Trench. Occurrences of volcanic ash in the diatomaceous mudstones increase within sediments dated 6-3 Ma. The frequency pattern and the sediment accumulation rate obtained at Site 584 are similar to those of Site 440 and to those of Sites 438 and 439, located on the upper slope basin. Explosive volcanism increased during the Pliocene and late Miocene in relation to the intrusion of Tertiary granites and uplift of the Tohoku Arc (northeastern Japan Arc). Hygromagmaphile element concentration shows that the glass does not belong to a unique series, and a comparison with Nankai Trough data distinguishes at least two different evolutionary lines. |
| title | Mineralogy and geochemistry of volcanic ash at Japan Trench from DSDP Legs 87 and 57 |
| topic | 57-438A; 57-438B; 57-439; 57-440B; 87-582B; 87-583A; 87-584; 87-584A; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg57; Leg87; North Pacific/BASIN; North Pacific/TRENCH; North Pacific Ocean |
| url | https://doi.org/10.1594/PANGAEA.801675 |