(Table, page 351-359) Chemical composition of manganese nodules and crusts from the Pacific and Indian Ocean
Autoria(s):
Cronan, David S; Tooms, J S
Cobertura
MEDIAN LATITUDE: 0.690875 * MEDIAN LONGITUDE: -179.640893 * SOUTH-BOUND LATITUDE: -44.383000 * WEST-BOUND LONGITUDE: 51.900000 * NORTH-BOUND LATITUDE: 40.500000 * EAST-BOUND LONGITUDE: -83.116667 * DATE/TIME START: 1874-03-13T00:00:00 * DATE/TIME END: 1965-07-01T00:00:00 * MINIMUM DEPTH, sediment/rock: 0.000 m * MAXIMUM DEPTH, sediment/rock: 3.960 m
Data(s)
13/06/1969
Resumo
Chemical and mineralogical analyses of manganese nodules from a large number of widely spaced localities in the Pacific and Indian Oceans have shown that their mineralogy and chemical composition varies both areally and with depth of formation. This is considered to result from a number of factors, important among which are: (a) their proximity to continental or volcanic sources of elements; (b) the chemical environment of deposition, including the degree of oxygenation; and (c) local factors such as the upward migration of reduced manganese in sediments from certain areas. Sub-surface nodules appear to share the chemical characteristics of their surface counterparts, especially those from volcanic areas where sub-surface sources of elements are probably important.
Cronan, David S (1967): Chemical composition of manganese nodules and crusts from the Pacific and Indian Ocean and Loch Fyne, Scotland. doi:10.1594/PANGAEA.861848
Grant, J Bruce; Moore, Carla J; Alameddin, George; Chen, Kuiying; Barton, Mark (1992): The NOAA and MMS Marine Minerals Geochemical Database. National Geophysical Data Center, NOAA, doi:10.7289/V52Z13FT
Warnken, Robin R; Virden, William T; Moore, Carla J (1992): The NOAA and MMS Marine Minerals Bibliography. National Geophysical Data Center, NOAA, doi:10.7289/V53X84KN
Direitos
CC-BY: Creative Commons Attribution 3.0 Unported
Access constraints: unrestricted
Fonte
Supplement to: Cronan, David S; Tooms, J S (1969): The geochemistry of manganese nodules and associated pelagic deposits from the Pacific and Indian Oceans. Deep Sea Research and Oceanographic Abstracts, 16(4), 335-359, doi:10.1016/0011-7471(69)90003-5
