Browsing Scholarly literature by Subject "ferromanganese nodules"
Now showing items 81-96 of 96
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Polymetallic nodule resources of the Indian Ocean
(Offsetters, New Delhi, 1993)The seabed resources are large and varied and considerable knowledge and technological development are required to exploit them economically. Beyond the Exclusive Economic Zone (EEZ), the deposits which are of utmost ... -
Preliminary geotechnical properties of deepsea sediments from the Central Indian Basin
(Int. Soc. of Offshore and Polar-Eng.(ISOPE), Colorado, USA, 1995)Geotechnical properties of the Plio-Pleistocene sediments from nodule bearing area in the Central Indian Basin have been studied to know shear strength and water content variation with depth. It reveals that surface sediments ... -
Pumices from the Central Indian Ocean Basin
(Regional Research laboratory, Bhubaneswar, 2005)A better understanding of submarine volcanisms that result in pyroclastics is of universal importance for paleotectonic reconstruction, crustal growth estimates and location of volcanisms throughout the earth's history. ... -
Rare earth element distribution and behaviour in buried manganese nodules from the Central Indian Basin
(Elsevier, 1993)Eight burried manganese nodules taken in the upper metre of a siliceous ooze sediment core in the Central Indian Basin at 14 degrees S and 74 degrees E were analysed for major, trace and rare earth (REE) elements. ... -
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 ... -
Relationship between size and geochemistry of polymetallic nodules from the Central Indian Ocean Basin: Significance in selection of high grade nodules
(Publ. and Inf. Dir., New Delhi, India, 1994)Morphological, mineralogical and geochemical studies on nodules of different sizes collected from the Central Indian Ocean Basin (CIOB) show two suits of nodule formation by oxic diagenetic and hydrogenous process resulting ... -
Sedimentological impacts of INDEX experiment
(International Society of Offshore and Polar Engineers, Cupertino, CA (USA), 1999)The polymetallic nodule exploration programme (PMN) has already identified one Indian mine site in the Central Indian Basin (CIB) where deep-sea mining activities are likely to start in future. In order to assess the ... -
Selection of test and reference areas for the Indian Deepsea Environment Experiment (INDEX)
(Taylor and Francis, 2000)The Indian Deepsea Environment Experiment (INDEX) was conducted in the Central Indian Ocean Basin, to assess the effects of a simulated disturbance on the marine ecosystem and to collect data to predict the effects of ... -
Size analyses and geochemistry of ferromanganese nodules from the Central Indian Ocean Basin
(1989)Ferromanganese nodules collected during the 13th cruise of the M.V. Skandi Surveyor in 1987 cover a very large area, 71 424 km super(2) in the Central Indian Ocean. The area consists of 13 nodule types, which are grouped ... -
Superficial mineral resources of the Indian Ocean
(Elsevier, 1984)The sea floor of the Indian Ocean and the continental margins bordering the ocean are covered by a wide variety of terrigenous, biogenous and anthigenic mineral deposits. The biogenous deposits in the Indian Ocean comprise ... -
Technological challenges for manganese nodule mining
(Publ. and Inf. Dir., New Delhi, India, 1994)The major technological challenges of deep-sea mining venture involve delineation of mine site and development of mining technology to bring out the minerals from extreme conditions (more than 5 km water depth, 0-3 degrees ... -
The Indian Ocean Nodule Field: Petrotectonic evolution and ferromanganese deposits
(Elsevier, 2002)The crust of the Indian Ocean Nodule Field (IONF), in the Central Indian Ocean Basin (10 degrees-16 degrees 30 minutes; 72 degrees-80 degrees E) and hosting the world's second largest and second highgrade manganese nodule ... -
Two layers of Australian impact ejecta in the Indian Ocean
(Meteoritical Society, 2003)Only 2 Australian tektites have been found in the Indian Ocean, and both are associated with surficial sediments. Cores from both locations are collected, where the tektites have been reported. The microtektites in these ... -
Underwater geomorphology as a function of the variations in ferromanganese nodule characters in the Indian Ocean
(Current Science Association, 1989)Ferromanganese nodules from three areas in the northern part of the Central Indian Ocean Basin have been studied. Statistical analysis shows significant variations in morphological and physical characters of nodules between ... -
Validation of EIA sampling methods - bacterial and biochemical analysis
(International Society of Offshore and Polar Engineers, Cupertino, CA (USA), 1999)Deep sea sediments from Central Indian Ocean Basin (CIOB) were sampled from 10 degrees .00'-10 degrees .10'S latitude and 75 degrees .55'-76 degrees .05'E longitude for assessing the potential environmental impact of ... -
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 ...