Now showing items 1-10 of 17
Cerium anomaly variations in ferromanganese nodules and crusts from the Indian Ocean
Fifty analyses of rare earth elements as well as mineralogical studies have been carried out on a suite of manganese nodules and crusts from the Central Indian Basin and the Western Indian Ocean. The aim was to identify ...
Indian BIE (Indian Dee-Sea Environment Experiment - INDEX)
(Mar Georesour Geotechnol, 2000)
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 ...
Integrated Geochemical and Morphological Data Provide Insights into the Genesis of Ferromanganese Nodules
(Multidisciplinary Digital Publishing Institute- MDPI AG, Basel, Switzerland, 2018)
Ferromanganese nodules grow by precipitation of metals from seawater and/or sediment pore water. The formation of different genetic types depends on the composition and redox conditions of the water and upper sediment ...
A two million year record of low-latitude aridity linked to continental weathering from the Maldives
Indian-Asian monsoon has oscillated between warm/wet interglacial periods and cool/dry glacial periods with periodicities closely linked to variations in Earth�s orbital parameters. However, processes that control wet ...
Scanning Electron Microscopic Studies of Fossil Pteropods from the Andaman Sea: Inferences on Carbonate Dissolution
(Indian National Science Academy, 2020)
Among the different microfossils group, pteropods are least studied zooplanktons having delicate aragonitic shells which are very susceptible to dissolution. The present study has been carried out to understand the effect ...
Implications of Microbial Thiosulfate Utilization in Red Clay Sediments of the Central Indian Basin: The Martian Analogy
(John Wiley & Sons, 2019)
Microbial thiosulfate utilization and S-disproportionation could be important mechanisms of sulfate-formations on Earth and Mars. Sulfates on Mars date back to late-Noachian to Hesperian period. In contrast, the large ...
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 ...
Holocene variability in chemical weathering and ocean redox state: A reconstruction using sediment geochemistry of the Arabian Sea
Major and trace elemental geochemistry of a sediment core (SSK40/GC10; water depth ~50 m) from the eastern Arabian Sea (17� 59.89123 N, 72� 22.45161 E) have been investigated to reconstruct the continental weathering pattern ...
Aragonite pteropod abundance and preservation records from the Maldives, equatorial Indian Ocean: Inferences on past oceanic carbonate saturation and dissolution events
During the International Ocean Discovery Program (IODP) Expedition 359, a long continuous carbonate-rich sequence was recovered from the Inner Sea of Maldives. We investigated pteropod proxies (absolute abundance of pteropods ...