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Now showing items 4534-4553 of 9167
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Late Quaternary Chronostratigraphy, Carbonate Mass Accumulation Rates and Palaeoceanography of the Andaman Sea
(Springer, Cham, 2020)The Andaman Sea, the least explored semi-enclosed marginal sea in the northern Indian Ocean, is one of the great repositories of palaeo-sedimentary archives for Quaternary climate and oceanographic studies due to its ... -
Late Quaternary Faunal Change in Coastal Arabian sea Sediments
(Elsevier, 1982)Carbonate content and faunal composition of two gravity cores from the coastal Arabian Sea provide evidence of a major environmental change in surface ocean waters about 13,000 yr B.P. Radiocarbon dating indicates that ... -
Late quaternary fluctuations in carbonate and carbonate ion content in the northern Indian ocean
(2008)The proposed research is aimed to understand the Late Quaternary fluctuations in carbonate and carbonate ion content in the northern Indian Ocean with the following specific objectives: 1) To identify suitable paleocarbonate ... -
Late Quaternary Halimeda bioherms and aragonitic faecal pellet-dominated sediments on the carbonate platform of the western continental shelf of India
(Elsevier, 1994)The Fifty Fathom Flat is a drowned carbonate platform located on the outer continental shelf of western India. It unique because the carbonate depositional environment prevailed until Early Holocene in spite of its proximity ... -
Late Quaternary paleoceanographic features as deduced from calcium carbonate and faunal changes of planktonic foraminifers in core samples from northeastern Arabian Sea
(Marine Biological Association of India, 1997)Two pelagic core samples, ARB-52 and ARB-54 from 2240 m and 800 m depths respectively from the Arabian Sea off Bombay were analysed for determining climatic changes during the past 30,000 yr. based on the interpretation ... -
Late Quaternary record of Indian summer monsoon-induced stratification and productivity collapse in the Andaman Sea
(John Wiley and Sons, Ltd, 2021)During each summer monsoon, the northeastern Indian Ocean receives a huge amount of rain and river discharge, resulting in strong stratification and prevalence of oligotrophic conditions. These water column changes impact ... -
Late Quaternary record of pteropod preservation from the Andaman Sea
(Elsevier, 2010)In order to understand the glacial to interglacial fluctuations in pteropod preservation and productivity during the late Quaternary (approx. 54 ka BP to present), we investigated pteropod, organic carbon (C sub(org)) and ... -
Late Quaternary sea level and environmental changes from relic carbonate deposits of the western margin of India
(Indian Academy of Sciences, 2003)Relic carbonate deposits along the western margin of India occur as dolomite crusts, aragonite sands (pelletal / oolitic) and aragonite-cemented limestones, oyster shells, corals, encrusted coralline algal and foraminife ... -
Late Quaternary Sedimentation and Slope Failure Events on the Costa Rican Margin
(Springer, Cham, 2020)The Costa Rican margin is an erosional convergent margin formed by subduction of the Cocos Plate under the Caribbean Plate along the Middle America Trench. The Integrated Ocean Drilling Program (IODP) Expedition 334 was ... -
Late Quaternary sedimentation in eastern Bay of Bengal
(Oxford and IBH, New Delhi, 1992)This study presents variations in various size measures, calcium carbonate, organic carbon, clay mineralogy and major and trace elements in a core (5.40 m long, 2713 m depth) from the eastern Bay of Bengal. On a CM diagram, ... -
Late Quaternary seismic sequence stratigraphy of the Gulf of Kachchh, northwest of India
(Coastal Education and Reserch Foundation, 2009)High-resolution seismic reflection and bathymetric data in 10 to 50 m water depth in the Gulf of Kachchh, northwest of India, have been analysed together with earlier results from the area. They have revealed geomorphic ... -
Late-Quaternary variations in clay minerals along the SW continental margin of India: Evidence of climatic variations
(Springer, 2000)Down-core variations in illite, chlorite, smectite and kaolinite (the major clays) in two sup(14)C-dated cores collected along the SW continental margin of India show that illite and chlorite have enhanced abundance during ... -
Latent and sensible heat fluexes under active and weak phases of the summer monsoon of 1986
(Indian Academy of Sciences, Bangalore, 1989) -
Latent heat flux variability over the tropical Indian Ocean
(John Wiley & Sons, Ltd, 2023)The seasonal evolution and interannual variability of latent heat flux (LHF) over the tropical Indian Ocean (TIO) region is examined for the period 1980–2019. The seasonal distribution of LHF is dominated by the winter ... -
Latitudinal environmental gradients and diel variability influence abundance and community structure of Chaetognatha in Red Sea coral reefs
(Taylor & Francis, 2017)The Red Sea has been recognized as a unique region to study the effects of ecohydrographic gradients at a basin-wide scale. Its gradient of temperature and salinity relates to the Indian Ocean monsoon and associated ... -
Latitudinal range of epiplanktonic Cahetognatha and Ostracoda in the western tropical Indian Ocean
(Springer, 1984)An account of the chaetognath and ostracod species obtained from zooplankton samples collected along a transect in the Western Indian Ocean between 9 degrees N-20 degrees S and 57 degrees 18'-68 degrees 43'E in January-February ... -
Latitudinal variation of air sea fluxes in the western Indian Ocean during austral summer and fall
(Kluwer, 1989)Daily and zonal (latitudinal belt) averages of heat and momentum fluxes were computed using bulk aerodynamic formulae, from the meteorological parameters measured onboard 'M.S. Thuleland' during the sixth Indian scientific ... -
Lead distribution in coastal and estuarine sediments around India
(Elsevier, 2015)This study describes the geochemical distribution of lead (Pb) and identifies the critical factors that significantly control Pb distribution and speciation in coastal and estuarine sediments around India by using published ... -
Lead ingots from a shipwreck off Poompuhar, Tamil Nadu, east coast of India: Evidence for overseas trade and their significance
(Blackwell Publishing, 2003)Various types of lead ingots have been reported from a number of shipwrecks from different parts of the world. In 1991 exploration of a wreck off Poompuhar, Tamil Nadu, east coast of India, at a depth of 19 m yielded a ...