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author Usui, Akira
Terashima, Shigeru
author_facet Usui, Akira
Terashima, Shigeru
collection Datos científicos de ciencias marinas y ambientales
contents During the ten R/V Hakurei-Maru cruises from 1984 through 1988 in the Northwestern Pacific island-arc area, a widespread occurrence of hydrogenetic iron-manganese crusts and nodules and hydrothermal manganese deposits were discovered. During shipboard survey, the wet iron-manganese minerals were stored with sea water in a refrigerator immediately after recovery from a sampler, in order to prevent mineralogical transformation on air drying. The subsamples, in both wet and air-dried conditions, were subjected to X-ray powder diffraction (XRD) analysis to ascertain structural stability upon dehydration. Powder samples dried at 110°C for 3 hours were analyzed for metal concentration by atomic absorption spectroscopy according to the Geological Survey of Japan (GSJ) standard analytical technique.
format Dataset Open Access
id pangaea_https___doi_org_10_1594_PANGAEA_962209
institution PANGAEA
language en
publishDate 2023
publisher PANGAEA
record_format pangaea
spellingShingle Bulk chemical composition of pelagic sediment samples from the Central Pacific Basin, GH 79-1 detailed survey area
Usui, Akira
Terashima, Shigeru
Aluminium; Atomic absorption spectroscopy; Cobalt; Copper; Core; CORE; Deposit type; DEPTH, sediment/rock; Description; DISTANCE; Dredge; DRG; Elevation of event; Event label; Geochemistry; Grab; GRAB; Identification; Iron; Latitude of event; Lead; Longitude of event; Manganese; manganese micronodule; manganese nodule; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; ocean; Pacific Ocean; Platinum; Sediment; Silicon; USU-D1012; USU-D1013; USU-D1014; USU-D1018; USU-D1019; USU-D1020; USU-D1021; USU-D1022; USU-D1023; USU-D1025; USU-D1026; USU-D1027; USU-D1028; USU-D1029; USU-D1030; USU-D1031; USU-D1032; USU-D825; USU-D826; USU-D845; USU-D849; USU-D851; USU-D853; USU-D854; USU-D856; USU-D858; USU-D859; USU-D862; USU-D866; USU-D867; USU-D869; USU-D879; USU-D881; USU-D883; USU-D884; USU-D886; USU-RC449; USU-RS18; USU-RS30; USU-RS31; USU-RS33; USU-RS40; USU-RS42; USU-RS48; Water in rock; Wet chemistry; Zinc
During the ten R/V Hakurei-Maru cruises from 1984 through 1988 in the Northwestern Pacific island-arc area, a widespread occurrence of hydrogenetic iron-manganese crusts and nodules and hydrothermal manganese deposits were discovered. During shipboard survey, the wet iron-manganese minerals were stored with sea water in a refrigerator immediately after recovery from a sampler, in order to prevent mineralogical transformation on air drying. The subsamples, in both wet and air-dried conditions, were subjected to X-ray powder diffraction (XRD) analysis to ascertain structural stability upon dehydration. Powder samples dried at 110°C for 3 hours were analyzed for metal concentration by atomic absorption spectroscopy according to the Geological Survey of Japan (GSJ) standard analytical technique.
title Bulk chemical composition of pelagic sediment samples from the Central Pacific Basin, GH 79-1 detailed survey area
topic Aluminium; Atomic absorption spectroscopy; Cobalt; Copper; Core; CORE; Deposit type; DEPTH, sediment/rock; Description; DISTANCE; Dredge; DRG; Elevation of event; Event label; Geochemistry; Grab; GRAB; Identification; Iron; Latitude of event; Lead; Longitude of event; Manganese; manganese micronodule; manganese nodule; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; ocean; Pacific Ocean; Platinum; Sediment; Silicon; USU-D1012; USU-D1013; USU-D1014; USU-D1018; USU-D1019; USU-D1020; USU-D1021; USU-D1022; USU-D1023; USU-D1025; USU-D1026; USU-D1027; USU-D1028; USU-D1029; USU-D1030; USU-D1031; USU-D1032; USU-D825; USU-D826; USU-D845; USU-D849; USU-D851; USU-D853; USU-D854; USU-D856; USU-D858; USU-D859; USU-D862; USU-D866; USU-D867; USU-D869; USU-D879; USU-D881; USU-D883; USU-D884; USU-D886; USU-RC449; USU-RS18; USU-RS30; USU-RS31; USU-RS33; USU-RS40; USU-RS42; USU-RS48; Water in rock; Wet chemistry; Zinc
url https://doi.org/10.1594/PANGAEA.962209