Controls on greigite preservation in a gas hydrate system of the Krishna-Godavari basin, Bay of Bengal

F Badesab, V Gaikwad, P Dewangan - Geo-Marine Letters, 2020 - Springer
Shallow sediments across large parts of Krishna-Godavari (KG) basin offshore east central
Indian contain abundant methane and gas hydrates. In this study, we carried out rock …

Diagenetic analysis of shallow and deep-seated gas hydrate systems from the Bay of Bengal

V Gaikwad, F Badesab, M Kotha - Marine Geology, 2022 - Elsevier
This is the first systematic high-resolution rock magnetic study complemented by
mineralogical and petrological observations conducted on sediment cores representing …

Diagenesis of magnetic minerals in a gas hydrate/cold seep environment off the Krishna–Godavari basin, Bay of Bengal

P Dewangan, N Basavaiah, FK Badesab, A Usapkar… - Marine Geology, 2013 - Elsevier
We carried out detailed magnetic measurements of the core (MD161/8) located in the vicinity
of Site NGHP-01-10, where~ 128 m of hydrate is confirmed by drilling/coring, to understand …

Diagenetic formation of greigite and pyrrhotite in gas hydrate marine sedimentary systems

JC Larrasoaña, AP Roberts, RJ Musgrave… - Earth and Planetary …, 2007 - Elsevier
Mineral magnetic results and electron microscope observations from gas hydrate-bearing
marine sediments cored at southern Hydrate Ridge during Ocean Drilling Program Leg 204 …

[HTML][HTML] Magnetic mineral diagenesis in a newly discovered active cold seep site in the Bay of Bengal

F Badesab, P Dewangan, V Gaikwad - Frontiers in Earth Science, 2020 - frontiersin.org
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 …

Magnetic mineralogical approach for the exploration of gas hydrates in the Bay of Bengal

F Badesab, P Dewangan, V Gaikwad… - Journal of …, 2019 - Wiley Online Library
We evaluate the environmental magnetic, geochemical, and sedimentological records from
three sediment cores from potential methane‐hydrate bearing sites to unravel linkages …

Controls on evolution of gas‐hydrate system in the Krishna‐Godavari basin, offshore India

F Badesab, P Dewangan, A Usapkar… - Geochemistry …, 2017 - Wiley Online Library
In this study, we integrate environmental magnetic, sedimentological, and geochemical
records of sediment core of Hole NGHP‐01‐10D overlying methane hydrate deposits to …

A rock magnetic perspective of gas hydrate occurrences in a high-energy depositional system in the Krishna-Godavari basin, Bay of Bengal

F Badesab, P Dewangan, V Gaikwad, JG Sebastian… - Geo-Marine Letters, 2020 - Springer
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 …

Genesis and preservation of authigenic magnetite and greigite in the cold seep sediments, Bay of Bengal

F Badesab, V Gaikwad, M Venkateshwarlu… - Marine and Petroleum …, 2023 - Elsevier
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 …

Greigite formation modulated by turbidites and bioturbation in deep‐sea sediments offshore Sumatra

T Yang, MJ Dekkers, X Zhao… - Journal of …, 2022 - Wiley Online Library
Authigenic greigite may form at any time within a sediment during diagenesis. Its formation
pathway, timing of formation, and geological preservation potential are key to resolving the …