Browsing by Author "Yatheesh, V."
Now showing items 1-20 of 37
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3D local earthquake tomography of the Andaman-Nicobar subduction zone using ocean-bottom seismometer data
Mahesh, P.; Sribin, C.; Dewangan, P.; Yatheesh, V.; Gupta, Sandeep (Seismological Society of America, GeoScienceWorld, 2024)The Andaman-Nicobar (A-N) subduction zone is one of the most seismically active subduction zones of the world where the Indian plate subducts beneath the Burmese-Sunda plate. Imaging the subducting Indian plate (SIP) ... -
40Ar/39Ar dating of the Mumbai tholeiites and Panvel flexure: intense 62.5 Ma onshore-offshore Deccan magmatism during India-Laxmi Ridge-Seychelles breakup
Pande, K.; Yatheesh, V.; Sheth, H. (Oxford University Press, 2017)Mumbai, located on the western Indian continental margin, exposes Danian-age Deccan magmatic units of diverse compositions, dipping seaward due to the Panvel flexure. The Ghatkopar-Powai tholeiitic sequence contains ... -
A tectonic model reconciling evidence for the collisions between India, Eurasia and intra-oceanic arcs of the central-eastern Tethys
Gibbons, A.D.; Zahirovic, S.; Müller, R.D.; Whittaker, J.M.; Yatheesh, V. (Elsevier, 2015)Despite several decades of investigations, inferences on the timing and nature of collisions along the Mesozoic–Cenozoic Eurasian margin remain controversial. We assimilate geological and geophysical evidence into a plate ... -
Advances in marine geophysical studies of the Indian Ocean: Contributions from India (2010-2015)
Krishna, K.S.; KameshRaju, K.A.; Ramprasad, T.; Chaubey, A.K.; Dewangan, P.; Yatheesh, V. (Indian National Science Academy, 2016)Indian scientists carrying marine geophysical research at different Earth Science institutions have made significant advances during the last six years (2012-2015) for understanding evolution of continental margins of India ... -
Caldera-like features located over the Panikkar Seamount and adjacent regions in the Laxmi Basin, eastern Arabian Sea
Savio, J.J.; Yatheesh, V.; Sheldon, R.; Kallathian, M.; Kessarkar, P.M.; Kumar, Kuldeep; Mahesh, P.; Mishra, Subhashree; Verma, Swati (Springer, 2022)The Laxmi Basin, which is believed to have been formed by the divergence between India and the Laxmi Ridge, contains a seamount chain consisting of the Raman Seamount, Panikkar Seamount and the Wadia Guyot in its axial ... -
Conjugate nature of the Alleppey-Trivandrum Terrace Complex with the Northern Madagascar Ridge in the early opening model of the Arabian Sea: evaluation based on an integrated geophysical investigation
Bijesh, C.M.; Yatheesh, V.; Kurian, P.J.; Savio, J.J.; Mahale, V.; Shet, Abhishek; Gautham, S. (Springer, 2022)The southwestern continental margin of India reveals the presence of an anomalous bathymetric high feature located in the mid-continental slope region off Trivandrum. Based on the analysis of the available geophysical data ... -
Crustal structure beneath the Alcock Seamount in the Andaman Sea
Singha, Pabitra; Dewangan, P.; Ghosal, D.; KameshRaju, K.A.; Aswini, K.K.; Yatheesh, V.; Mukhopadhyay, R.; Mandal, Suman (Elsevier, 2023)Alcock and Sewell seamounts are important geomorphic features in the Andaman Sea due to their association with the tectonic history of the Sunda subduction zone. Despite the availability of global geophysical data, the ... -
Deciphering detailed plate kinematics of the Indian Ocean and developing a unified model for East Gondwanaland reconstruction: An Indian-Australian-French initiative
Yatheesh, V.; Dyment, J.; Bhattacharya, G.C.; Muller, R.D. (Department of Science and Technology , India, 2013)The Indian Ocean formed as a result of the fragmentation and dispersal of Gondwanaland since the Jurassic. The deep ocean basins in the Indian Ocean contain the imprints of this plate tectonic history, which is related ... -
Detailed Structure and Plate Reconstructions of the Central Indian Ocean Between 83.0 and 42.5 Ma (Chrons 34 and 20)
Yatheesh, V.; Dyment, J.; Bhattacharya, G.C.; Royer, J.Y.; KameshRaju, K.A.; Ramprasad, T.; Chaubey, A.K.; Patriat, P.; Srinivas, K.; Choi, Y. (2019)The Central Indian Ocean, namely the Central Indian, Crozet, and Madagascar basins, formed by rifting and subsequent drifting of India (now Capricorn), Antarctica, and Africa (now Somalia). We gathered a comprehensive set ... -
Developing community-based scientific priorities and new drilling proposals in the southern Indian and southwestern Pacific oceans
Mckay, R.; Exon, N.; M�ller, D.; Gohl, K.; Gurnis, M.; Shevenell, A.; Henrys, S.; Inagaki, F.; Pandey, D.; Whiteside, J.; Van De Flierdt, T.; Naish, T.; Heuer, V.; Morono, Y.; Coffin, M.; Godard, M.; Wallace, L.; Kodaira, S.; Bijl, P.; Collot, J.; Dickens, G.; Dugan, B.; Dunlea, A.G.; Hackney, R.; Ikehara, M.; Jutzeler, M.; Mcneill, L.; Naik, S.S.; Noble, T.; Opdyke, B.; Pecher, I.; Stott, L.; Uenzelmann-Neben, G.; Yatheesh, V.; Wortmann, U.G. (Copernicus Gesellschaft MBH, Gottingen, Germany, 2018)An International Ocean Discovery Program (IODP) workshop was held at Sydney University, Aus-tralia, from 13 to 16 June 2017 and was attended by 97 scientists from 12 countries. The aim of the workshop was to investigate ... -
Early oceanic opening off Western India-Pakistan margin: The Gop Basin revisited
Yatheesh, V.; Bhattacharya, G.C.; Dyment, J. (Elsevier, 2009)The Deccan Traps, one of the best known examples of rapid flood basalt, are considered as marking of the inception of a mantle plume on the Indian continental lithosphere. Their emplacement may be associated with the ... -
Elevated turbidity and dissolved manganese in deep water column near 10�47�S Central Indian Ridge: studies on hydrothermal activities
Ray, D.; KameshRaju, K.A.; Rao, S.A.; SuryaPrakash, L.; Mudholkar, A.V.; Yatheesh, V.; Samudrala, K.; Kota, D. (Springer Science and Business Media Deutschland GmbH, 2020)The deep water in the ridge segment between 10°18'S and 10°57'S of northern Central Indian Ridge was surveyed with CTD and AUV for seafloor hydrothermal activities. During the survey, 25 CTD hydrocasts were made, and ... -
Formation and evolution of the Chain-Kairali Escarpment and the Vishnu Fracture Zone in the Western Indian Ocean
Shuhail, M.; Yatheesh, V.; Bhattacharya, G.C.; Muller, R.D.; KameshRaju, K.A.; Mahender, K. (Elsevier, 2018)Published models for the plate tectonic evolution of the Western Indian Ocean suggest that the Southern Mascarene Basin opened by oceanic crustal accretion between the continental margins of southwestern India and southeastern ... -
Gas migration signatures over the volcanic cratered seamount, off the Nicobar Islands in the Andaman Sea
Sriram, G.; Dewangan, P.; Yatheesh, V.; Peketi, A.; Mahesh, P.; Mazumdar, A.; Mahale, V.; Jacob, J.; Dubey, K.M.; Kumar, Pankaj; Mishra, C.K.; Gautham, S.; Anirudh, A.K.; Ankush, P.; MadhavRam, A.B.; Shijin, K.K.; Salkar, T.G.; Zatale, Anjali; Rajurkar, V.; Khokher, S.H.; Garg, Shriya; Choudhary, A.K.; Aswini, K.K.; Gawas, Amol (Springer, 2023)The submarine volcanic arc off-Nicobar is seismologically very active with numerous earthquake swarms reported after the tsunamigenic 26th December 2004 earthquake in the Andaman-Nicobar-Sumatra subduction zone. Therefore, ... -
Hydrothermal amorphous silica, barite and orpiment from the crater area of seamount (SM-13) off Nicobar island, Andaman sea: Indications for the development of a new hydrothermal field
Peketi, A.; Sriram, G.; Mazumdar, A.; Dewangan, P.; Zatale, Anjali; Rajurkar, V.; Shirodkar, G.; Mahale, V.; Yatheesh, V. (Elsevier, 2024)The Andaman sea characterized by trench-arc-backarc elements (Andaman-Nicobar island-arc, the Andaman back-arc spreading center, the seamount complex, and the back-arc basin) is a complex active basin and is known for ... -
IODP expedition 334: An investigation of the sedimentary record, fluid flow and state of stress on top of the seismogenic zone of an erosive subduction margin
Vannucchi, P.; Ujiie, K.; Stroncik, N.; IODP Exp. 334 Scientific Party; Yatheesh, V. (Copernicus GmbH, 2013)The Costa Rica Seismogenesis Project (CRISP) is an experiment to understand the processes that control nucleation and seismic rupture of large earthquakes at erosional subduction zones. Integrated Ocean Drililng Program ... -
Late Quaternary Sedimentation and Slope Failure Events on the Costa Rican Margin
Nath, B.N.; Yatheesh, V.; Yazing, A.K.; Prabhu, S.R.; Borker, A.; Pandey, D.K.; KameshRaju, K.A. (Springer, Cham, 2020)The Costa Rican margin is an erosional convergent margin formed by subduction of the Cocos Plate under the Caribbean Plate along the Middle America Trench. The Integrated Ocean Drilling Program (IODP) Expedition 334 was ... -
Microbathymetry inferences from two AUV dives over a short segment of the Central Indian Ridge between 10�18' and 10�57'S, Indian Ocean
KameshRaju, K.A.; Yatheesh, V.; Rao, A.S.; SuryaPrakash, L.; Ray, D.; Mudholkar, A.; Samudrala, K.; Augustin, N.; Kurian, P.J. (Springer, 2023)The topographic fabric of the rift valley floor has been analyzed using the multibeam echosounder data obtained by the autonomous underwater vehicle (AUV) Abyss at two locations over a short segment of the slow-spreading ... -
Morphotectonic architecture of an India–Madagascar breakup related anomalous submarine terrace complex on the southwest continental margin of India
Yatheesh, V.; Kurian, P.J.; Bhattacharya, G.C.; Rajan, S. (Elsevier, 2013)An anomalous lateral bathymetric protrusion [Alleppey–Trivandrum Terrace Complex (ATTC)] in the form of two contiguous terrace-like features exists in the mid-continental slope off southwest coast of India. This bathymetric ... -
Morphotectonic characteristics, distribution and probable genesis of bathymetric highs off southwest coast of India
Bijesh, C.M.; Kurian, P.J.; Yatheesh, V.; Tyagi, A.; Twinkle, D. (Elsevier, 2018)The western continental margin of India and the adjacent deep ocean basins were formed by break-up and separation among India, Seychelles and Madagascar since the Late Cretaceous. The initial India-Madagascar separation ...