Swagato Dasgupta

Indian Institute of Technology Dhanbad

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Soumyajit Mukherjee

Indian Institute of Technology Bombay

Achyuta Ayan Misra

Reliance Industries (India)

Mery Biswas

Presidency University

Manoj A. Limaye

Maharaja Sayajirao University of Baroda

Dripta Dutta

Okayama University of Science

Nihar Ranjan Kar

University of Hyderabad

Aditya Joshi

Manipal Academy of Higher Education

Mohit Kumar

Kumaun University

Narayan Bose

Indian Institute of Technology Kharagpur

Tuhin Biswas

Indian Institute of Technology Bombay

Cooperative Institutions

Indian Institute of Technology Bombay

Council of Scientific and Industrial Research

National Geophysical Research Institute

Academy of Scientific and Innovative Research

Maharaja Sayajirao University of Baroda

Indian Institute of Technology Dhanbad

Reliance Industries (India)

Osmania University

Manipal Academy of Higher Education

University of Hyderabad

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Aravalli

Springer eBooks (2019)

Soumyajit Mukherjee Narayan Bose Rajkumar Ghosh Dripta Dutta Achyuta Ayan Misra

Phyllite

Supergroup

Conglomerate

Sequence (biology)

10.1007/978-981-13-9825-4_5

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Paleostress analysis and rift kinematics of the petroliferous Barmer rift basin, western Rajasthan, India

Marine and Petroleum Geology (2023)

Swagato Dasgupta Soumyajit Mukherjee Naimisha Vanik Rima Chatterjee Sanjit Kumar Pal

Transtension

Paleogene

10.1016/j.marpetgeo.2023.106442

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Citations (9)

Polygonal Fault System in Late Cretaceous Sediments of Cauvery Deepwater Basin, India

Swagato Dasgupta Achyuta Ayan Misra

The network of polygonal faults normally occurs as a layer bound of deformational events, that is its top and bottom layers are undeformed. These sets of normal faults are neither related to extension nor to any gravity-driven slip. The network of polygonal faults acts as fluid escape feature, through which fluids from lower lithological units diffuse out to the upper surface. These polygonal faults in general occur in finer clastics and are distributed randomly along horizontal section. Polygonal faulting is also observed in the Indian E coast. In this example, a polygonal fault system is shown in the Late Cretaceous finer sediments as identified in the deepwater Cauvery Basin. The polygonal fault system and the inhomogenous decompaction related faults act as fluid escape structures. Fluids can migrate to shallower sections through such a fault network.

10.1002/9781119158332.ch20

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Citations (3)

Lesser Himalaya

Springer eBooks (2019)

Soumyajit Mukherjee Narayan Bose Rajkumar Ghosh Dripta Dutta Achyuta Ayan Misra

Pelite

SLATES

10.1007/978-981-13-9825-4_3

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Shallow Detachment Along a Transform Margin in Cauvery Basin, India

Achyuta Ayan Misra Swagato Dasgupta

This chapter presents a seismic section from the Cauvery Basin showing a series of rift fault blocks with a shallow crustal detachment. The large fault propagates deeper and due to changes in basement rheology it acts like a detachment for the series of faults appearing above. The extension is so large that normal fault or extensional duplexes form along the fault plane. The smaller normal faults detach on the shallow crustal detachment formed by the large fault plane. The faults are identified by the offset of the displaced markers, fault plane reflections and growth of sedimentary sequences towards the large fault plane. The synrift top or breakup unconformity can be identified in the NE of this section from the downlaps of the postrift sediments. Adjacent well data indicate that synrift top at the marked horizon, which is the base of postrift. So the possible growth pack is part of the thermal sag.

Detachment fault

Fault plane

Basement

10.1002/9781119158332.ch18

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Sedimentary Deformation Features Produced by Differential Compaction and Buoyancy in the Offshore Palar Basin, East Coast of India

Swagato Dasgupta

The seismic line is from the offshore Palar Basin in the southern part of the east coast of India. The late rift stage faulting and subsequent thermal subsidence during early post-rift sagged the post-rift strata, thereby generating a synclinal pattern towards the western side of the pinnacle basement high. Syn-sedimentary normal faulting is observed on either side of this synclinal feature. These are formed due to differential compaction of the Cretaceous post-rift sediments. A vertical narrow zone of seismic wipe-out associated with velocity pull-up features at its edges is distinctly observed in the Tertiary sequence overlying the Paleocene shale having a typical Christmas-tree structure. Sedimentary deformation features associated with normal faulting is seen at the base of this wipe out zone. Fluid saturated shale and siltstone bodies have low shear strength, due to an increase in pore pressure, as a result of which the buoyancy-driven structure is formed in the passive margin.

Siltstone

Basement

10.1002/9781119158332.ch24

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Citations (5)

Source rock properties and kerogen decomposition kinetics of Eocene shales from petroliferous Barmer basin, western Rajasthan, India

Journal of Natural Gas Science and Engineering (2022)

Nihar Ranjan Kar Devleena Mani Soumyajit Mukherjee Swagato Dasgupta Mohit Kumar Puniya

Paleogene

10.1016/j.jngse.2022.104497

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Citations (16)