_version_ 1867168171698421760
author Nohara, Masato
author_facet Nohara, Masato
collection Datos científicos de ciencias marinas y ambientales
contents Considerable regional variations in the chemical composition of manganese nodules from a wide range of the Pacific Ocean have been observed. These variations can be more exactly expressed in terms of inter-element relationships. In particular, Cu-Mn and Cu-Ni associations reveal that Cu content in pelagic nodules increases rapidly in proportion to those of Mn or Ni. In nodules from continental borderland and hemipelagic areas, even if Mn or Ni contents increase, that of Cu increases only slightly. It is suggested that the considerable chemical differences within individual nodules and between nodules from the same site, at a limited pelagic area where there is no marked change in depositional conditions of nodules, are due to the role of hydrolyzable trace elements in the formation of nodules.
format Dataset Open Access
id pangaea_https___doi_org_10_1594_PANGAEA_858503
institution PANGAEA
language en
publishDate 1977
publisher PANGAEA
record_format pangaea
spellingShingle (Table 2, Page 270) Average chemical composition of manganese nodules and crust collected at different localities the Pacific Ocean
Nohara, Masato
Aluminium; Atomic absorption spectrometry (AAS), Perkin-Elmer; Cobalt; Copper; Core; CORE; Deposit type; DEPTH, sediment/rock; Description; Dredge; DRG; Elevation of event; Event label; Geographical setting; GH76-2; GH76-2-D144; Hakuho-Maru; Hakurei-Maru (1974); Identification; Iron; KH67-5-34; KH67-5-40; KH-68-3; KH68-3-9-16-2; KH68-3-9-6; KH68-3-9-7; KH68-3-9-8; KH68-3-9-9; KH-68-4; KH68-4-33-2; KH68-4-41-2; KH-69-2; KH69-2-1-1; KH69-2-5-1; KH-71-1; KH71-1-3-3a; KH-71-5; KH71-5-12-3; KH71-5-15-3; KH71-5-20-3; KH-72-2; KH72-2-46; KH-76-2; KH76-32-2; Latitude of event; Lead; Longitude of event; Manganese; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Number of subsamples; OKAD01; OKAD02; Pacific Ocean; Sediment type; SPac_1968-69_HH_170W; SPac_1971_HH_150-100W; Station 441; Titanium; Zinc
Considerable regional variations in the chemical composition of manganese nodules from a wide range of the Pacific Ocean have been observed. These variations can be more exactly expressed in terms of inter-element relationships. In particular, Cu-Mn and Cu-Ni associations reveal that Cu content in pelagic nodules increases rapidly in proportion to those of Mn or Ni. In nodules from continental borderland and hemipelagic areas, even if Mn or Ni contents increase, that of Cu increases only slightly. It is suggested that the considerable chemical differences within individual nodules and between nodules from the same site, at a limited pelagic area where there is no marked change in depositional conditions of nodules, are due to the role of hydrolyzable trace elements in the formation of nodules.
title (Table 2, Page 270) Average chemical composition of manganese nodules and crust collected at different localities the Pacific Ocean
topic Aluminium; Atomic absorption spectrometry (AAS), Perkin-Elmer; Cobalt; Copper; Core; CORE; Deposit type; DEPTH, sediment/rock; Description; Dredge; DRG; Elevation of event; Event label; Geographical setting; GH76-2; GH76-2-D144; Hakuho-Maru; Hakurei-Maru (1974); Identification; Iron; KH67-5-34; KH67-5-40; KH-68-3; KH68-3-9-16-2; KH68-3-9-6; KH68-3-9-7; KH68-3-9-8; KH68-3-9-9; KH-68-4; KH68-4-33-2; KH68-4-41-2; KH-69-2; KH69-2-1-1; KH69-2-5-1; KH-71-1; KH71-1-3-3a; KH-71-5; KH71-5-12-3; KH71-5-15-3; KH71-5-20-3; KH-72-2; KH72-2-46; KH-76-2; KH76-32-2; Latitude of event; Lead; Longitude of event; Manganese; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Number of subsamples; OKAD01; OKAD02; Pacific Ocean; Sediment type; SPac_1968-69_HH_170W; SPac_1971_HH_150-100W; Station 441; Titanium; Zinc
url https://doi.org/10.1594/PANGAEA.858503