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 …

Fluid accumulation, migration and anaerobic oxidation of methane along a major splay fault at the Hikurangi subduction margin (New Zealand): A magnetic approach

A Greve, M Kars, MJ Dekkers - Journal of Geophysical …, 2021 - Wiley Online Library
Understanding the locus of fluid flow along thrust and splay faults is important to understand
the hydraulic properties of accretionary systems and fault mechanics. Here, we use rock …

[HTML][HTML] Authigenic greigite as an indicator of methane diffusion in gas hydrate-bearing sediments of the Hikurangi Margin, New Zealand

M Kars, A Greve, L Zerbst - Frontiers in Earth Science, 2021 - frontiersin.org
Authigenic ferrimagnetic iron sulfides, essentially greigite (Fe3S4), are commonly found in
gas hydrate-bearing marine sediments of active accretionary prisms. Greigite is a by …

[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 …

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 …

PyTherNal: A python program for analyzing curie temperature from thermomagnetic data

GB Nanlohy, GG Yosia, C Salim… - Journal of Physics …, 2022 - iopscience.iop.org
Thermomagnetic analysis is performed by bringing subject materials into its cooled and
heated state, followed by analyzing the magnetic moment change. Performing these would …

Experimental study on the dissolution characteristics of ethane into oil‐based mud in complex oil and gas wellbore environments

S Xuncheng, L Yongwang, H Hongqiang… - Energy Science & …, 2024 - Wiley Online Library
Accurately determining the solubility of ethane in oil‐based mud is crucial for assessing the
severity of gas kicks and implementing appropriate well control procedures. The key factors …

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 …

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 …

Iron mineralogy and speciation of sediment iron-bearing minerals in mangrove forest: Case study of Zhangjiang estuary, China

D Yang, J Liu, W Zhao, Q Huang, L Xue, C Yan… - Marine Pollution …, 2020 - Elsevier
Few investigations of iron speciation exist in intertidal conditions with little attention given to
understanding the geochemical behavior of Fe 3+–Fe 2+ and its biogeochemical processes …