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Ferromanganese oxides from Mid-Indian ridge, seamounts and abyssal plains from the Indian Ocean
(CSIR-NISCAIR, 1989)
Mineralogical and chemical investigations show that todorokite is the only Mn mineral in the Mid-Indian Ridge ferromanganese, coatings, delta MnO2 in the seamount crusts, and well crystallised todorokite and minor amounts ...
Internal microfeatures of manganese nodules from the Central Indian Ocean
(Elsevier, 1988)
The internal features of manganese nodules from abyssal hills ranging in height from 600 to 880 m and the nodules from abyssal plains in the Central Indian Ocean have been studied. Nodules from the abyssal hills show mainly ...