Browsing by Author "Carvalho, M.A."
Now showing items 1-5 of 5
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Enhanced carbon-sulfur cycling in the sediments of Arabian Sea oxygen minimum zone center
Fernandes, S.; Mazumdar, A.; Bhattacharya, S.; Peketi, A.; Mapder, T.; Roy, R.; Carvalho, M.A.; Roy, C.; Mahalakshmi, P.; DaSilva, R.; Rao, P.L.S.; Banik, S.K.; Ghosh, W. (Nature Publishing Group, 2018)Biogeochemistry of oxygen minimum zone (OMZ) sediments, which are characterized by high input of labile organic matter, have crucial bearings on the benthic biota, gas and metal fluxes across the sediment-water interface, ... -
Gas hydrate destabilization and methane release events in the Krishna-Godavari Basin, Bay of Bengal
Joshi, R.K.; Mazumdar, A.; Peketi, A.; Ramamurty, P.B.; Naik, B.G.; Kocherla, M.; Carvalho, M.A.; Mahalakshmi, P.; Dewangan, P.; Ramana, M.V. (Elsevier, 2014)Methane release events have been linked to global warming, alteration of the carbon cycle and influence on biota. However, unequivocal evidence of paleomethane release events are limited. We report several negative carbon ... -
Geochemical characterization of the Krishna–Godavari and Mahanadi offshore basin (Bay of Bengal) sediments: A comparative study of provenance
Mazumdar, A.; Kocherla, M.; Carvalho, M.A.; Peketi, A.; Joshi, R.K.; Mahalaxmi, P.; Joao, H.M.; Jisha, R. (Elsevier, 2015)The Krishna–Godavari and Mahanadi rivers drain the east coast of India and deposit the sediment load into the Krishna–Godavari and Mahanadi offshore basins along the western margin of the Bay of Bengal. Here we report the ... -
Salinity stratification controlled productivity variation over 300 ky in the Bay of Bengal
DaSilva, R.; Mazumdar, A.; Mapder, T.; Peketi, A.; Joshi, R.K.; Shaji, A.; Mahalakshmi, P.; Sawant, B.; Naik, B.G.; Carvalho, M.A.; Molletti, S.K. (Nature Publishing Group, 2017)The unique hydrographic setting of the Bay of Bengal (BoB) makes it an ideal tropical marine system to study the influence of regional and global forcings on productivity and [CO2aq] through the late quaternary. Enormous ... -
Sulfidization processes in seasonally hypoxic shelf sediments: A study off the West coast of India
Fernandes, Svetlana; Mazumdar, A.; Peketi, A.; Anand, S.S.; Rengarajan, R.; Jose, A.; Manaskanya, A.; Carvalho, M.A.; Shetty, D. (Elsevier Ltd, 2020)Continental shelves are the major sites for organic carbon burial and sulfate reduction. Organic carbon degradation and sulfidization along continental shelves are expected to play a significant role in global carbon-sulfur-iron ...