Furuta, Toshio; Arai, Fusao (1980): Petrographic properties of tephras of DSDP Leg 56 Holes [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.822117, Supplement to: Furuta, T; Arai, F (1980): Petrographic properties of tephras, Leg 56, Deep Sea Drilling Project. In: Scientific Party, Initial Reports of the Deep Sea Drilling Project, 56/57 (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 56-57, 1043-1048, https://doi.org/10.2973/dsdp.proc.5657.139.1980
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Abstract:
Examining volcanic materials in deep sea sediments may be one of the most important tasks of the Deep Sea Drilling Project. The investigation of volcanic ash near young source volcanoes is particularly helpful in enabling us to infer the history of volcanism in and around the island arcs. In the area of the Japanese islands volcanic deposits are usually distributed east of the source by prevailing westerly winds. It is also possible that some deep sea tephra has its source in a large, already known land volcanism.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 39.831101 * Median Longitude: 144.711880 * South-bound Latitude: 39.734800 * West-bound Longitude: 143.792200 * North-bound Latitude: 39.932700 * East-bound Longitude: 145.557800
Date/Time Start: 1977-09-12T00:00:00 * Date/Time End: 1977-10-01T00:00:00
Event(s):
56-434 * Latitude: 39.746000 * Longitude: 144.102000 * Date/Time: 1977-09-12T00:00:00 * Elevation: -5986.0 m * Penetration: 301 m * Recovery: 54.2 m * Location: North Pacific/TRENCH * Campaign: Leg56 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 33 cores; 301 m cored; 0 m drilled; 18 % recovery
56-434B * Latitude: 39.747800 * Longitude: 144.101300 * Date/Time: 1977-09-12T00:00:00 * Elevation: -5986.0 m * Penetration: 637.5 m * Recovery: 63.2 m * Location: North Pacific/TRENCH * Campaign: Leg56 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 32 cores; 295.5 m cored; 47.5 m drilled; 21.4 % recovery
56-435 * Latitude: 39.734800 * Longitude: 143.792200 * Date/Time: 1977-09-18T00:00:00 * Elevation: -3401.0 m * Penetration: 150.5 m * Recovery: 78.4 m * Location: North Pacific/TRENCH * Campaign: Leg56 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 15 cores; 141 m cored; 9.5 m drilled; 55.6 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
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Datasets listed in this publication series
- Furuta, T; Arai, F (1980): (Table 2) Chemical composition of volcanic glass shards at DSDP Holes 56-434 and 56-436. https://doi.org/10.1594/PANGAEA.822116
- Furuta, T; Arai, F (1980): (Table 1) Refractive index of volcanic glass shards at DSDP Leg 56 Holes. https://doi.org/10.1594/PANGAEA.822115