ATYPICAL FERROMANGANESE MICRONODULES FROM MIDDLE FAN-VALLEY SYSTEM, BAY OF BENGAL

Authors
CHAUHAN OS GUJAR AR RAO CM
Citation
Os. Chauhan et al., ATYPICAL FERROMANGANESE MICRONODULES FROM MIDDLE FAN-VALLEY SYSTEM, BAY OF BENGAL, Current Science, 67(6), 1994, pp. 462-465
Citations number
16
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Current Science → ACNP
ISSN journal
00113891
Volume
67
Issue
6
Year of publication
1994
Pages
462 - 465
Database
ISI
SICI code
0011-3891(1994)67:6<462:AFMFMF>2.0.ZU;2-J
Abstract
Ferromanganese micronodules having botryoidal and spheroidal morphogro ups have been observed over a 0.22 million km2 area from the middle fa n region of the Bay of Bengal. The bulk micronodules have 26.26% Mn, 1 .02% Fe, 1.82% Ca, 0.12% Ni, 0.14% Zn and 0.08% Cu. Their Mn/Fe ratio (25.74) is much higher than the world average. Based on the results of the present study, we suggest that early diagenesis may be the contri butory process for their formation.