Browsing Institute's contributions by Author "Usapkar, A."
Now showing items 1-6 of 6
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Controls on evolution of gas-hydrate system in the Krishna-Godavari basin, offshore India
Badesab, F.K.; Dewangan, P.; Usapkar, A.; Kocherla, M.; Peketi, A.; Mohite, K.; Sangode, S.J.; Deenadayalan, K. (American Geophysical Union Publications, 2017)Abstract In this study, we integrate environmental magnetic, sedimentological, and geochemical records of sediment core of Hole NGHP-01-10D overlying methane hydrate deposits to decipher the controls on the evolution of ... -
Coupled C-S-Fe geochemistry in a rapidly accumulating marine sedimentary system: Diagenetic and depositional implications
Peketi, A.; Mazumdar, A.; Joao, H.M.; Patil, D.J.; Usapkar, A.; Dewangan, P. (Wiley, 2015)In the present study, we have investigated the C-S-Fe systematics in a sediment core (MD161-13) from the Krishna-Godavari (K-G) basin, Bay of Bengal he core covers the late Holocene period with high overall sedimentation ... -
Diagenesis of magnetic minerals in a gas hydrate/cold seep environment off the Krishna-Godavari basin, Bay of Bengal
Dewangan, P.; Basavaiah, N.; Badesab, F.K.; Usapkar, A.; Mazumdar, A.; Joshi, R.; Ramprasad, T. (Elsevier, 2013)Detailed magnetic measurements of the core (MD161/8) located in the vicinity of Site NGHP-01-10 was carried out, where approx. 128 m of hydrate is confirmed by drilling/coring, to understand the diagenesis of magnetic ... -
Enhanced methane flux event and sediment dispersal pattern in the Krishna–Godavari offshore basin: Evidences from rock magnetic techniques
Usapkar, A.; Dewangan, P.; Kocherla, M.; Ramprasad, T.; Mazumdar, A.; Ramana, M.V. (Elsevier, 2014)Detailed rock magnetic measurements such as susceptibility (X), susceptibility of anhysteric remanent magnetization (X<sub>ARM</sub>), saturation isothermal remanent magnetization (SIRM), soft-isothermal remanent magnetization ... -
High resolution Holocene paleomagnetic secular variation records from Bay of Bengal
Usapkar, A.; Dewangan, P.; Badesab, F.K.; Mazumdar, A.; Ramprasad, T.; Krishna, K.S.; Basavaiah, N. (Elsevier, 2016)We present high resolution paleosecular variation (PSV) records up to 8 cal. kyr BP from three piston cores, MD161/8, MD161/11 and MD161/13 acquired in the Krishna-Godavari (KG) basin, Bay of Bengal. During the Holocene ... -
Paleomagnetic record for the past 80 ka from the Mahanadi basin, Bay of Bengal
Usapkar, A.; Dewangan, P.; Mazumdar, A.; Krishna, K.S.; Ramprasad, T.; Badesab, F.K.; Patil, M.; Gaikwad, V.V. (Pergamon, 2018)High resolution paleomagnetic investigations were performed on a 50.08 m long sediment core (MD161/20) from Mahanadi basin, Bay of Bengal. Core yielded reliable paleomagnetic results for top 20 m below seafloor (mbsf) which ...