Browsing by Author "Gaikwad, V."
Now showing items 1-15 of 15
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A rock magnetic perspective of gas hydrate occurrences in a high-energy depositional system in the Krishna-Godavari basin, Bay of Bengal
Badesab, F.K.; Dewangan, P.; Gaikwad, V.; Sebastian, J.G.; Venkateshwarlu, M. (Springer, 2020)We conducted a detailed rock magnetic study complemented by sedimentological and mineralogical methods on a 177.2-m-long sediment core of Hole NGHP-01-14A to constrain the influence of high-energy depositional environment ... -
Control of source-to-sink processes on the dispersal, fractionation, and deposition of magnetic minerals in a tropical mesotidal estuarine system
Badesab, F.K.; Kadam, N.; Gullapalli, S.; Dewangan, P.; Gaikwad, V.; Satelkar, N.P.; Khalap, S.; Venkateshwarlu, M.; Sahoo, R.K.; Fernandes, Walsh; Dahake, P.; Banerjee, Deblina (John Wiley & Sons, Ltd, 2023)This study aims to elucidate the control of source-to-sink processes on the sediment dynamics of a complex mesotidal tropical estuarine system using rock magnetic, sedimentological, mineralogical, and geochemical methods. ... -
Controls of contrasting provenance and fractionation on the sediment magnetic records from the Bay of Bengal
Badesab, F.K.; Gaikwad, V.; Nath, B.N.; Venkateshwarlu, M.; Aiswarya, P.V.; Tyagi, A.; Salunke, K.; Fernandes, W.; Kadam, N.; Sangode, S.J.; Sardar, A.A.; Prabhu, G.A. (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 ... -
Controls of mass transport deposit and magnetic mineral diagenesis on the sediment magnetic record from the Bay of Bengal
Joao, H.M.; Badesab, F.K.; Gaikwad, V.; Kocherla, M.; Deenadayalan, K. (Elsevier, 2021)We conducted rock magnetic, mineralogical, sedimentological and geochemical analyses on a sediment core (MD161/Stn-11) retrieved from a complex marine sedimentary system of Krishna-Godavari (K-G) basin to delineate the ... -
Controls on greigite preservation in a gas hydrate system of the Krishna-Godavari basin, Bay of Bengal
Badesab, F.K.; Gaikwad, V.; Dewangan, P. (Springer Verlag, 2020)Shallow sediments across large parts of Krishna-Godavari (K-G) basin offshore east central Indian contain abundant methane and gas hydrates. In this study, we carried out rock-magnetic and transmission electron microscope ... -
Diagenesis of Magnetic Minerals in Active/Relict Methane Seep: Constraints From Rock Magnetism and Mineralogical Records From Bay of Bengal
Gaikwad, V.; Badesab, F.K.; Dewangan, P.; Kotha, M. (Frontiers Media�, 2021)In this study, we conducted a comprehensive investigation of rock magnetic, mineralogical, and sedimentological records of sediment cores supplemented by a high resolution seismic data to elucidate the controls of structural ... -
Diagenetic analysis of shallow and deep-seated gas hydrate systems from the Bay of Bengal
Gaikwad, V.; Badesab, F.K.; Kotha, M. (Elsevier, 2022)This is the first systematic high-resolution rock magnetic study complemented by mineralogical and petrological observations conducted on sediment cores representing shallow (active cold seep; SSD-45/Stn-4/GC-01) and ... -
Diagenetic dissolution, maghemitization and sulphidization of magnetic minerals in rapidly deposited gas hydrate bearing sediments from the Bay of Bengal
Badesab, F.K.; Gaikwad, V.; Venkateshwarlu, M.; Kadam, N.; Joao, H.M. (Elsevier, 2022)We conducted a comprehensive rock magnetic investigation complemented by a scanning electron microscopy analyses on a 148.8 m sediment core (NGHP-01-20A) from the methane-hydrate bearing site in the Bay of Bengal to ... -
Genesis and preservation of authigenic magnetite and greigite in the cold seep sediments, Bay of Bengal
Badesab, F.K.; Gaikwad, V.; Venkateshwarlu, M.; Kadam, N. (Elsevier, 2023)We report a new mechanism of authigenic greigite and magnetite formation and preservation in an anomalous �sulfide-rich� interval in the cold (methane) seep sediments from the Bay of Bengal. Rock magnetic proxies (SIRM/?lf, ... -
Geochemistry of volcanic glass from Mahanadi offshore region, eastern continental margin of India: Constraints on the contribution of latest Toba super-eruption
Kocherla, M.; Ray, D.; Satyanarayanan, M.; Joao, H.M.; Gaikwad, V.; Ramamurty, P.B. (Springer, 2024)The tephra layers in multiple sediment cores from the offshore region of the Mahanadi basin in the northern Bay of Bengal were investigated for possible volcanic sources. The glass shards from those tephra layers were ... -
Magnetic Mineral Diagenesis in a Newly Discovered Active Cold Seep Site in the Bay of Bengal
Badesab, F.K.; Dewangan, P.; Gaikwad, V. (Frontiers Media SA, 2020)Diagenetically formed magnetic minerals at marine methane seep sites are potential archive of past fluid flow and could provide important constraints on the evolution of past methane seepage dynamics and gas hydrate formation ... -
Magnetic Mineralogical Approach for the Exploration of Gas Hydrates in the Bay of Bengal
Badesab, F.K.; Dewangan, P.; Gaikwad, V.; Kars, M.; Kocherla, M.; Krishna, K.S.; Sangode, S.J.; Deenadayalan, K.; Kumar, P.; Naikgaonkar, O.; Ismaiel, M.; Khan, A. (2019)We evaluate the environmental magnetic, geochemical, and sedimentological records from three sediment cores from potential methane-hydrate bearing sites to unravel linkages between sedimentation, shale tectonics, magnetite ... -
Magnetic tracing of sediment dynamics of mudbanks off southwest coast of India
Badesab, F.K.; Gaikwad, V.; Gireeshkumar, T.R.; Naikgaonkar, O.; Deenadayalan, K.; Samiksha, S.V.; DineshKumar, P.K.; Loveson, V.J.; Iyer, S.D.; Khan, A.; Udayakrishnan, P.B.; Sardar, A.A. (Springer Berlin Heidelberg, 2018)In this study, we utilized environmental magnetic in combination with sedimentological and hydrodynamic data to investigate the formative processes of mudbanks along southwest coast of India. We document the linkages between ... -
Rock magnetic evidence of tectonic control on the sedimentation and diagenesis in the Andaman Sea over ~1 million years
Badesab, F.K.; Mascarenhas-Pereira, M.B.L.; Gaikwad, V.; Dewangan, P.; Panda, P.P.; Deenadayalan, K.; Salunke, K.; Augastian, B.; Patil, J.R.; Lakshmi, B.V. (Elsevier, 2021)We evaluate the sedimentary (magnetic, mineralogical, geochemical, grain size) records of a long sediment core (NGHP-01-17 A) to elucidate the tectonic control on the sedimentation and diagenesis in the Andaman Sea (AS) ... -
Sedimentary response to the contrasting provenance and oceanographic conditions on the continental shelf of India
Kadam, N.; Badesab, F.K.; Gaikwad, V.; Kotha, M.; Fernandes, L.L.; Venkateshwarlu, M. (Elsevier, 2022)The present study sets out to elucidate how magnetic minerals derived from wide array of source regions respond to shelfal sedimentary processes in a complex shelf system.Bulk sediment magnetic mineralogy comprised of ...