U
Uma Shankar
Researcher at Banaras Hindu University
Publications - 37
Citations - 647
Uma Shankar is an academic researcher from Banaras Hindu University. The author has contributed to research in topics: Clathrate hydrate & Gas hydrate stability zone. The author has an hindex of 13, co-authored 37 publications receiving 468 citations. Previous affiliations of Uma Shankar include National Geophysical Research Institute & Council of Scientific and Industrial Research.
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Journal ArticleDOI
Gas hydrate saturation in the Krishna–Godavari basin from P-wave velocity and electrical resistivity logs
Uma Shankar,Michael Riedel +1 more
TL;DR: In this paper, a series of well logs were acquired at several sites across the Krishna-Godavari (KG) Basin and the measured in situ pore-water salinity, seafloor temperature and geothermal gradients were used to determine the baseline porewater resistivity.
Journal ArticleDOI
Slow slip source characterized by lithological and geometric heterogeneity
Philip M. Barnes,Laura M. Wallace,Demian M. Saffer,Rebecca E. Bell,Michael B. Underwood,Ake Fagereng,Francesca Meneghini,Heather M. Savage,H. S. Rabinowitz,Julia K. Morgan,Hiroko Kitajima,Steffen Kutterolf,Yoshitaka Hashimoto,Christie Helouise Engelmann de Oliveira,Atsushi Noda,Martin P. Crundwell,Claire Shepherd,Adam Woodhouse,Robert N. Harris,Maomao Wang,Stuart Henrys,D. Barker,Katerina Petronotis,Sylvain Bourlange,Michael B. Clennell,Ann E. Cook,Brandon Dugan,Judith Elger,Patrick M. Fulton,Davide Gamboa,Annika Greve,S. Han,Andre Hüpers,Matt J. Ikari,Yoshihiro Ito,Gil Young Kim,Hiroaki Koge,Hikweon Lee,Xuesen Li,Min Luo,Pierre Malie,Gregory F. Moore,Joshu J. Mountjoy,David D. McNamara,M. Paganoni,Elizabeth J. Screaton,Uma Shankar,Srisharan Shreedharan,Evan A. Solomon,X. Wang,H.-Y. Wu,Ingo Pecher,Leah J. LeVay,Iodp Expedition Scientists +53 more
TL;DR: Observations suggest that SSEs and associated slow earthquake phenomena are promoted by lithological, mechanical, and frictional heterogeneity within the fault zone, enhanced by geometric complexity associated with subduction of rough crust.
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Assessment of gas hydrate saturation in marine sediments from resistivity and compressional-wave velocity log measurements in the Mahanadi Basin, India
Uma Shankar,Michael Riedel +1 more
TL;DR: In this paper, the authors used pore-water chemistry, electrical resistivity and acoustic velocity down-hole logs to estimate gas hydrate saturations at three sites in the Mahanadi Basin: Sites NGHP-01-08, -09, and -19.
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Gas hydrate and free gas saturations using rock physics modelling at site NGHP-01-05 and 07 in the Krishna–Godavari Basin, eastern Indian margin
TL;DR: In this paper, the authors applied various rock physics models to the P-wave sonic velocity logs collected during the Indian National Gas Hydrate Program (NGHP) Expedition 01 at sites NGHP-01-05 and NGHP -01-07 for the resource estimate of gas hydrate.
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Amplitude Versus Offset Modeling of the Bottom Simulating Reflection Associated with Submarine Gas Hydrates
TL;DR: In this article, the authors apply directivity correction in order to accentuate the amplitude-versus-offset (AVO) behavior of the bottom-simulating reflector (BSR).