Diagenetic dissolution, maghemitization and sulphidization of magnetic minerals in rapidly deposited gas hydrate bearing sediments from the Bay of Bengal

F Badesab, V Gaikwad, M Venkateshwarlu… - Marine and Petroleum …, 2022 - Elsevier
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 …

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 …

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 …

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 of mass transport deposit and magnetic mineral diagenesis on the sediment magnetic record from the Bay of Bengal

HM João, F Badesab, V Gaikwad, M Kocherla… - Marine and Petroleum …, 2021 - Elsevier
We conducted rock magnetic, mineralogical, sedimentological and geochemical analyses
on a sediment core (MD161/Stn-11) retrieved from a complex marine sedimentary system of …

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 …

[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 …

[HTML][HTML] Rock magnetic characterization of ferrimagnetic iron sulfides in gas hydrate-bearing marine sediments at Site C0008, Nankai Trough, Pacific Ocean, off-coast …

M Kars, K Kodama - Earth, Planets and Space, 2015 - Springer
A high-resolution rock magnetic study was carried out in Integrated Ocean Drilling Program
(IODP) Expedition 316 Hole C0008A located in the Megasplay Fault Zone of the Nankai …

Gas hydrates and magnetism: Comparative geological settings for diagenetic analysis

L Esteban, RJ Enkin, T Hamilton - 2008 - open.library.ubc.ca
Geochemical processes associated with gas hydrate formation lead to the growth of iron
sulphides which have a geophysically-measurable magnetic signature. Detailed magnetic …