DRS at CSIR-National Institute of Oceanography: Recent submissions
Now showing items 6141-6160 of 9443
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Late Quaternary changes in depositional processes along the western margin of the Indus Fan
(Springer, 2008)Detailed sedimentological, geochemical and isotopic analyses were carried out on sediment samples from ODP Site 720A on the Indus Fan, Arabian Sea. High values of calcium carbonate associated with low values of Al and Ti ... -
Depth anomalies in the Arabian Basin, NW Indian Ocean
(Springer, 2008)Unreported depth anomalies in the Arabian Basin, northwest Indian Ocean is presented previously, to provide constraints on the evolution of the oceanic lithosphere of that basin. The depth anomaly reported in this study ... -
Marine geophysical investigations across the submarine canyon (Swatch-of-No-Ground), northern Bay of Bengal
(Indian Academy of Science, 2008)Multibeam swath bathymetry, gravity and magnetic investigations were conducted across the major delta front canyon known as Swatch-of-No-Ground in the northern Bay of Bengal. The study reveals that the canyon is a 300 m ... -
Structural highs on the western continental slope of India: Implications for regional tectonics
(Elsevier, 2008)Integrated geological and geophysical explorations over the last two decades along the central western continental margin of India reveal, from east to west, a terrace-like flat shelf, an advancing shelf break, a NW–SE-oriented ... -
Geophysical characteristics of the Ninetyeast Ridge–Andaman island arc/trench convergent zone
(Elsevier, 2008)The convergence tectonics of the Ninetyeast Ridge (NER), upon the Andaman island arc–trench system is examined through an analysis of ETOPO2 bathymetry, satellite-derived free air gravity and seismic data. Oblique subduction ... -
Possible detrital, diagenetic and hydrothermal sources for Holocene sediments of the Andaman backarc basin
(Elsevier, 2008)Three sediment cores near the spreading axis in the Andaman backarc basin (ABB) were studied for bulk and clay mineralogy, major, trace and rare earth element (REE) geochemistry in bulk and three selective leaches, to ... -
Seasonal occurrence of unique sediment plume in the Bay of Bengal
(AGU, 2008)The movement of sediment plumes, detectable from ocean color sensors, depends primarily on coastal circulation. Hence, sediment plumes become tracers for studying circulation patterns. The Indian remote sensing satellite ... -
A note on geochemistry of surface sediments from Krishna-Godavari basin, East Coast of India
(The Geological Society of India, 2008)A closely spaced 75 surface sediments drawn from ‘Gas Hydrate` Project taken up by National Institute of Oceanography on a regional scale from the Krishna-Godavari Basin (Latitude I5 degrees 35 minutes to 16 degrees 20 ... -
Distribution and origin of seamounts in the central Indian Ocean Basin
(Taylor and Francis, 2005)Approximately 200 seamounts of different dimensions have been identified, from multibeam bathymetry maps of the Central Indian Ocean Basin (CIOB) (9 degrees S to 16 degrees S and 72 degrees E to 80 degrees E), of which 61% ... -
Application of generalized inverse for analysis of magnetic anomalies due to a dyke model - Some numerical experiments
(National Institute of Oceanography, 2005)Forward and inverse methods of magnetic interpretation have been used to estimate the parameters of dyke like intrusion over the eastern continental shelf of India. In the forward problem, the tentative parameters of the ... -
Clay minerals as palaeomonsoon proxies: Evaluation and relevance to the late Quaternary records from SE Arabian Sea
(NCAOR, Goa, 2005)Palaeoclimatic studies are largely dependent on the quality of records and a prudent use of environmental proxy indicators. In this study, the factors affecting the detrital clay minerals in marine environment and their ... -
Processes controlling forms of phosphorus in surficial sediments from the eastern Arabian Sea impinged by varying bottom water oxygenation conditions
(Elsevier, 2005)The surficial sediments from the upper continental slope of the eastern Arabian Sea, impinged by the oxygen minimum zone (OMZ, 150-1200 m water depth), show varying concentrations of the biogenic element phosphorus (P, ... -
Sediment texture, distribution and transport on the Ayeyarwady continental shelf, Andaman Sea
(Elsevier, 2005)The Ayeyarwady continental shelf is a complex sedimentary system characterized by large sediment influx (N360 million ton/yr), a wide shelf (N170 km), a strong tidal regime (7 m maximum tidal range), and incised by the ... -
Pre and postlay surveys of sewage disposal submarine pipeline at Campal. Sponsored by PWD, Government of Goa
(National Institute of Oceanography, 2005) -
Evidence of Himalayan erosional event at approx. 0.5 Ma from a sediment core from the equatorial Indian Ocean in the vicinityof ODP Leg 116 sites
(Elsevier, 2005)A sediment core collected from an area _100 miles south of the ODP Leg 116 (distal Bengal Fan) in the equatorial Indian Ocean was investigated for microfossils, mineralogy, mineral chemistry, magnetic susceptibility, grain ... -
Foraminifera in surface sediments of Mandovi River Estuary: Indicators for mining pollution and high sea stand in Goa, India
(Coastal Education and Research Foundation, 2005)Foraminiferal characteristics of 11 surface sediment samples collected from the Mandovi estuary during 2001 have been compared with similar data based on samples collected during 1994. The study reveals drastic fall in ... -
Weekly observations on dispersal and sink pathways of the terrigenous flux of the Ganga-Brahmaputra in the Bay of Bengal during NE monsoon
(Elsevier, 2005)The analyses of 64 sequential satellite images (October 1999-March 2001) of Indian Remote Sensing Satellite IRS-P4 ocean color monitor (OCM) (bands around 490, 555, and 670 nm) for total suspended matter (TSM), synchronous ... -
Environmental studies for mining of deep-sea polymetallic nodules - Accomplishments and future plans
(Regional Research laboratory, Bhubaneswar, 2005)Environmental studies for mining of deep-sea polymetallic nodules were initiated to evaluate the possible impacts of mining on benthic environment and develop protocols for environmental studies, to fulfill one of the ... -
Deep ocean fluxes and their link to surface ocean processes and the biological pump
(Elsevier, 2005)Intense studies of upper and deep ocean processes were carried out in the Northwestern Indian Ocean (Arabian Sea) within the framework of JGOFS and related projects in order to improve our understanding of the marine carbon ... -
Exploration for nodules in the Central Indian Ocean Basin: Past present and the future
(Regional Research laboratory, Bhubaneswar, 2005)The Polymetallic Nodules Project has a long (less than 2 decades)history. Initially, the Surveys and Exploration aspect was the driving force for this project. The project was initiated with the recovery of manganese nodules ...