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Now showing items 111-120 of 120
Alterations in geochemical associations in artificially disturbed deep-sea sediments
(Taylor and Francis, 2005)
In view of the role of sediment geochemistry in regulating the benthic ecosystem, diagenetic remobilization of dissolved constituents, bottom water redox, and regeneration of benthic fluxes, surficial sediments in and ...
Weakening of the South Asian summer monsoon linked to interhemispheric ice-sheet growth since 12 Ma
(Nature Publishing Group, 2023)
The evolution and driving mechanism of the South Asian summer monsoon (SASM) are still poorly understood. We here present a 12-Myr long SASM record by analyzing the strontium and neodymium isotopic composition of detrital ...
Distribution and geochemical fractionation of lead in the continental shelf sediments around India
(2019)
This study provides the first, preliminary data on geochemical distribution and fractionation of Pb (a toxic heavy metal) in continental shelf sediments around India and identifies the factors that control geochemical ...
Distribution and dispersal of surface sediments on the continental margins of India
(2019)
The vast area, varying climate regimes, diverse source terrain lithology of the mainland India generate complex weathering and erosional patterns and leads to diverse sediment distribution and dispersal on the surrounding ...
Climatic control on detrital sedimentation in the continental margin off Chennai, western Bay of Bengal - A 42 kyr record
(Elsevier, 2023)
While the peninsular Indian rivers deliver considerable loads of detrital sediments to the Bay of Bengal, changes in their depositional patterns with time are relatively less constrained compared to those deposited by ...
Porewater and solid phase speciation geochemistry of phosphorus in the Western Bay of Bengal: An assessment of depositional pathways
(Elsevier, 2023)
In this study, we used a combination of porewater phosphate and solid-phase P speciation to examine the present-day benthic biogeochemical cycling and pathways of phosphorus (P) deposition at four sites in the western Bay ...
Modern sedimentation on the eastern continental shelf of India: Assessing the provenance and sediment dispersal pattern
(Elsevier, 2023)
Sediments deposited on the eastern continental shelf of India are studied for texture, mineralogy and their major, trace, and rare earth elemental composition in lithogenic fraction. The objective of this study was to ...
Monitoring effects of simulated disturbance at INDEX site: Current status and future activities
(International Society of Offshore and Polar Engineers, 2003)
During the Indian Deep-Sea Environment Experiment (INDEX), greater than 6000 cu.m of sediment was resuspended 5 m above seafloor. Data collected from deep-towed photography, sediment traps, sediment coring and CTD operations ...
Controls of contrasting provenance and fractionation on the sediment magnetic records from the Bay of Bengal
(Elsevier, 2021)
We present the results of rock magnetic, granulometric, microscopy and mineralogical analyses of shelf sediments off Krishna, Godavari, and Mahanadi Rivers, Bay of Bengal. The aim of the study was to assess the influence ...
A 50 kyr record of eolian sedimentation in the Eastern Arabian Sea - Dust deposition changes synchronous with the Northern Hemisphere Climatic Oscillations
(Elsevier, 2023)
The Late Pleistocene Northern Hemisphere (NH) climate was extremely variable, owing to the abrupt warm Dansgaard-Oeschger (D/O) events and cold Heinrich events in the Greenland and North Atlantic. Although the close coupling ...