Browsing by Subject "Central Indian Basin"
Now showing items 1-17 of 17
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210Pb, 230Th, and 10Be in Central Indian Basin seamount sediments: Signatures of degassing and hydrothermal alteration of recent origin
(American Geophysical Union, 2008)Isotopic (sup(210)Pb, sup(238)U-sup(230)Th, sup(10)Be), major and trace elements, and micromorphological and microchemical data, were used to identify recent (approx. 100 yrs) hydrothermal alteration of a greater than 200 ... -
A pair of seamount chains in the Central Indian Basin, identified from multibeam mapping
(Taylor and Francis, 1998)Seamounts are major physiographic features on the ocean floor. Their study is important to the understanding of the tectonic history of the seafloor. Over 150 seamounts were identified during the multibeam (Hydrosweep ... -
Bacterial response to contrasting sediment geochemistry in the central Indian Basin
(International Association of Sedimentologists, 2011)In order to investigate whether geochemical, physiographic and lithological differences in two end-member sedimentary settings could evoke varied microbe-sediment interactions, two 25 cm long sediment cores from contrasting ... -
Clay as indicator of sediment plume movement in deep-sea environment
(Indian Academy of Sciences, 2004)Future polymetallic nodules mining in the Central Indian Basin (CIB) will disturb not only the deep-sea sediments but also the benthic environment. Generation of voluminous sediment plume due to mining activity is unavoidable, ... -
Composition and origin of buried ferromanganese nodules from central Indian Ocean
(Geological Society of India, 2006)Five buried ferromanganese nodules were recovered at different depths of 167-169 cm (A), 172 174 cm (B), 228 230 cm (C), 328 330 cm (D) and 418 420 cm (E) in a 5 m sediment core from the siliceous sediment of Central Indian ... -
Deep-sea fungi as a source of alkaline and cold-tolerant proteases
(Elsevier, 2006)Fungi from coastal environments have been widely studied with respect to the production of secondary metabolites and biotechnologically useful lignocellulolytic enzymes. A few studies on mycology of deep-sea sediments, ... -
Fungal community analysis in the deep-sea sediments of the central Indian Basin by culture-independent approach
(Springer, 2011)Few studies have addressed the occurrence of fungi in deep-sea sediments, characterized by elevated hydrostatic pressure, low temperature, and fluctuating nutrient conditions. The diversity of fungi at three locations of ... -
Fungi in deep-sea sediments of the Central Indian Basin
(Elsevier, 2006)Although a great amount of information is available on bacteria inhabiting deep-sea sediments, the occurrence of fungi in this environment has been poorly studied and documented. We report here the occurrence of fungi in ... -
Geotechnical properties of siliceous sediments from the Central Indian Basin
(Indian Academy of Sciences, 2002)Indian Deep-Sea Environment Experiment (INDEX) was carried out in a pre-selected area with low nodule abundance and uniform sediment type, for the purpose of environmental impact assessment of future deep-sea mining ... -
Implications of post-disturbance studies on the grain size of the sediments from the Central Indian Basin
(Indian Academy of Sciences, 2001)Indian Deep-Sea Environment Experiment (INDEX) was conducted by simulating benthic disturbance and resuspension of the sediments in 3 km ´ 200 m narrow strip at 5300 m water depth in the Central Indian Basin (CIB). Using ... -
Manganese nodules as a possible source of precious metals
(Indian Academy of Sciences, 2004)Marine geochemistry of Platinum (Pt) and Iridium (Ir) shows that both the elements are relatively enriched in manganese nodules. Compared to Pt concentration in the earth's upper continental crust the oceanic manganese ... -
Microimpact phenomena on Australasian microtektites: Implications for ejecta plume characteristics and lunar surface processes
(Meteoritical Society, 1998)Detailed investigations of the microimpact phenomena on Australasian microtektites from four samples from the Central Indian Basin reveal an array of features, such as very low-velocity captured droplets, welded projectiles, ... -
Native aluminium (spherules and particles) in the central Indian Basin sediments: Implications on the occurrence of hydrothermal events
(Elsevier, 2007)We have sampled particles of native aluminium (Alº) in two sediment cores from the Central Indian Basin (CIB). The cores are geographically separated but are located at the base of two seamounts. The native Alº particles ... -
Nature, source and composition of volcanic ash in sediments from a fracture zone trace of Rodriguez Triple Junction in the Central Indian Basin
(Elsevier, 2006)Volcanic glasses associated with pumice, micro nodules and palagonite like lithic fragments were recovered from a volcanic terrain in a fracture zone defined as Rodriguez Triple Junction trace in the Central Indian Basin. ... -
Petrographical indicators of petrogenesis: Examples from Central Indian Ocean Basin basalts
(NISCAIR, CSIR, 2001)Petrographical features of the Central Indian Basin (CIOB) basalts were studied to understand their genetic significance. The fresh basaltic pillows show three textural zones from the top glassy (zone A) through the ... -
Physical properties of a sediment core from the Central Indian Basin
(Indian Geophysical Union, 1998)A box core of 7.5 m was collected from the Central Indian Basin for the purpose of geotechnical studies and depthwise variation of physical properties and clay mineralogy. Water content, Atterberg limits, specific gravity ... -
Spore germination of fungi belonging to Aspergillus species under deep-sea conditions
(Elsevier, 2008)Wind-blown dry fungal spores and mycelial fragments from the nearest landmass or terrestrial run-off may find their way to the deep sea by hitching a ride on other sinking detrital particles. Once in the deep, they are ...