Nishimura, Akira; Mita, Naoki; Nohara, Masato (1992): Geochemistry of pelagic and hemipelagic sediments of ODP Leg 126 sites [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.774248, Supplement to: Nishimura, A et al. (1992): Pelagic and hemipelagic sediments of the Izu-Bonin Region, Leg 126: geochemical and compositional features. In: Taylor, B; Fujioka, K; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 126, 487-503, https://doi.org/10.2973/odp.proc.sr.126.151.1992
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Abstract:
Chemical analyses were performed on major, minor, and rare-earth elements of pelagic and hemipelagic sediments of the forearc, arc, and backarc sites of the Izu-Bonin Arc, Ocean Drilling Program Leg 126. Analyses of the hemipelagic and pelagic sediments of this area indicate that the chemical composition of this arc is highly affected by the chemical composition of rocks of this arc as a source of sediments. The Oligocene sediments, which are characterized by high MgO contents, reflect the chemical composition of the Paleogene volcanic rocks of the immature arc. Moreover, the late Miocene to Quaternary sediments with low MgO contents are attributed to the composition of the present arc. We also suggest that the sedimentation rates and topography of the sedimentary basin affect the MnO and SiO2 contents of pelagic and hemipelagic sediments.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 31.437325 * Median Longitude: 140.214671 * South-bound Latitude: 30.910900 * West-bound Longitude: 139.837000 * North-bound Latitude: 32.399800 * East-bound Longitude: 140.888200
Date/Time Start: 1989-04-15T03:15:00 * Date/Time End: 1989-06-17T18:55:00
Event(s):
126-787 * Latitude: 32.375700 * Longitude: 140.749400 * Date/Time Start: 1989-04-23T00:00:00 * Date/Time End: 1989-04-27T00:00:00 * Elevation: -3265.0 m * Penetration: 354.6 m * Recovery: 159.9 m * Location: North Pacific Ocean * Campaign: Leg126 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 34 cores; 320.1 m cored; 0 m drilled; 49.9% recovery
126-787B * Latitude: 32.375700 * Longitude: 140.749400 * Date/Time Start: 1989-04-24T14:55:00 * Date/Time End: 1989-04-27T12:00:00 * Elevation: -3265.0 m * Penetration: 320.1 m * Recovery: 159.88 m * Location: North Pacific Ocean * Campaign: Leg126 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 34 cores; 320.1 m cored; 0 m drilled; 49.9 % recovery
126-788 * Latitude: 30.922133 * Longitude: 140.003617 * Date/Time Start: 1989-04-28T00:00:00 * Date/Time End: 1989-05-16T00:00:00 * Elevation: -1112.5 m * Penetration: 717.4 m * Recovery: 159.7 m * Location: Philippine Sea * Campaign: Leg126 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 53 cores; 493.8 m cored; 0 m drilled; 32.3% recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
4 datasets
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Datasets listed in this publication series
- Nishimura, A; Mita, N; Nohara, M (1992): (Table 5) Sedimentation rates of ODP Leg 126 sites. https://doi.org/10.1594/PANGAEA.774247
- Nishimura, A; Mita, N; Nohara, M (1992): (Table 1) Chemical composition of pelagic and hemipelagic sediments of ODP Leg 126 sites. https://doi.org/10.1594/PANGAEA.774242
- Nishimura, A; Mita, N; Nohara, M (1992): (Table 2) Carbonate-free chemical composition of pelagic and hemipelagic sediments of ODP Leg 126 sites. https://doi.org/10.1594/PANGAEA.774243
- Nishimura, A; Mita, N; Nohara, M (1992): (Table 4) Content of rare-earth elements in pelagic and hemipelagic sediments of ODP Leg 126 sites. https://doi.org/10.1594/PANGAEA.774245