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Title: Size, surface texture, chemical composition and mineralogy interrelations in ferromanganese nodules of central Indian Ocean
Authors: Banakar, V K
Pattan, J N
Jauhari, P
Issue Date: Sep-1989
Publisher: NISCAIR-CSIR, India
Abstract: Fiftyseven ferromanganese nodules, classified into 3 size class ( < 4,4-6 and 6-8 cm diam.), from the siliceous sediments of central Indian Ocean were analysed for transition metals and representative sample from each size class for mineralogy. Smaller (< 4 cm diam.) nodules are invariably rough and very rough and spherical; they have higher concentration of Mn, Ni and Cu. The intensity of todorokite reflection decreases in higher size ( > 4 cm diam.) class. These observations suggest that the smaller nodules appear to have been influenced more by diagenetic processes that the larger nodules.
Page(s): 201-203
ISSN: 0975-1033 (Online); 0379-5136 (Print)
Appears in Collections:IJMS Vol.18(3) [September 1989]

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