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Growth rate and chemical composition of a manganese nodule from the EEZ of Seychelles
(Geological Society of India, 1989)
mhe ferro-manganese nodule collected in EEZ of Seychelles yields a growth rate of 1.5 mm/10 6Y 230Th (ex)/ and 230Th (ex)/ 232Th activity ratio methods indicating very slow growth of ferro-manganese nodules. The Mn/Fe and ...
Size, surface texture, chemical composition and mineralogy interrelations in ferromanganese nodules of central Indian Ocean
(CSIR-NISCAIR, 1989)
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 ...
Variability of Mn, Fe, Ni, Cu and Co in manganese nodules from the Central Indian Ocean Basin
(Elsevier, 1989)
The trace element variations in manganese nodules from the Central Indian Basin have been related to the underlying sediment type. Percentages of Mn, Cu and Ni are high in nodules occurring in siliceous sediments compared ...
Petrology of offshore basalts of Bombay harbour area, west coast of India
(CSIR-NISCAIR, 1988)
Recent marine geological and geophysical surveys indicate that the Deccan Traps extend to the offshore area of Bombay. Cores from bore holes in Deccan Traps collected from Bombay Harbour have been classified as basalts, ...
Sediment boron and its relation to sediment properties in a tropical estuary
(Indian Association for Limnology and Oceanography, 1988)
Boron in the sediments of Mandovi estuary varied from 8.0 to 258.0 ppm with an average of 118 ppm. It showed an inverse relation to the texture of sediments and was found to be concentrated in silt and clay fraction with ...
Relation between grade and abundance of manganese nodules
(Current Science Association, 1988)
Data from more than 1000 locations in the Central Indian Ocean Basin (CIOB) where both bulk nodule chemistry and abundance were determined and utilized to study the relationship between grade and abundance of manganese ...
Anomalous behaviour of uranium isotopes in backwater sediments of Zuari river
(Elsevier, 1983)
The surface leaching of the labile component of uranium has been carried out in estuarine sediments of Zuari River in Goa, India The measurements of alpha activities of sup(238) U, sup(235) U and sup(234) U in the leachates ...
Geochemistry of Sediment cores of the Western Equatorial Indian Ocean
(Indian Association for Limnology and Oceanography, 1983)
Geochemical investigations including partition analysis have been carried out on nine sediment cores from the western equatorial Indian Ocean. The results show that a core from the Arabian Sea exhibits a greater terrigenous ...
Surficial Sediments of the Continental Shelf off Karnataka
(Geological Society of India, 1981)
The continental shelf in this area is about 80 km wide and the edge of the shelf varies between 90 and 120 m water depth. Geologically modern fine-grained clastic sediments occur between the water depth. Geologically modern ...
Studies on the Sediments of Vembanad Lake, Kerala State. 4. Distribution of Trace Elements
(CSIR-NISCAIR, 1981)
Distribution patterns of FE, Mn, Ti, Ni, Co and Cu in sediments of Vembanad Lake and adjoining river systems have revealed that (1) elemental concentrations follow closely the texture of the sediments, (2) river sands ...