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  • 1
    Keywords: Geophysics. ; Geology. ; Atmospheric science. ; Geophysics. ; Geology. ; Atmospheric Science.
    Description / Table of Contents: Andaman Ophiolite: An Overview -- Timing of formation and obduction of the Andaman Ophiolite -- Facies stacking of a deep sea depositional lobe: Case study from Paleogene Andaman Flysch, South Andaman Islands, India -- Spatial variation in the composition of Andaman Flysch across the Andaman Islands in relation to source of sediments and tectonics -- Tracing the sources and depositional pathways for the Oligocene sediments in the Andaman Forearc -- Seismicity, lithospheric structure and mantle deformation in the Andaman Nicobar Subduction Zone -- Lithospheric Framework of Sumatra-Andaman Subduction Zone - A Review -- Crustal model for the Andaman Outer Arc: Constraints from Earthquake, Gravity and Receiver Function Data -- Geomagnetic Deep Sounding in Andaman Islands -- On the Trail of the Great 2004 Andaman-Sumatra Earthquake: Seismotectonics and Regional Tsunami History from the Andaman-Nicobar Segment -- A glimpse of crustal deformation through earthquake supercycle in the Andaman region using GPS measurements -- Tectonics of the Andaman Backarc Basin – Present Understanding and Some Outstanding Questions -- Miocene to Pleistocene Palaeoceanography of the Andaman Region: Evolution of the Indian Monsoon on a Warmer-Than-Present Earth -- Late Quaternary Chronostratigraphy, Carbonate Mass Accumulation Rates and Paleoceanography of the Andaman Sea -- Mid to Late Holocene reconstruction of the southwest monsoonal shifts based on a marine sediment core off the Landfall Island, Bay of Bengal.
    Abstract: This book gathers peer-reviewed research articles on recent advances concerning the geology, geophysics, tectonics, geochronology, sedimentology, igneous petrology, paleo-climate and paleo-oceanography of the Andaman and Nicobar Islands of India and the adjoining ocean basins. Accordingly, it contributes significantly to readers’ understanding of the origin and evolution of the Andaman subduction zone and its various components. It also provides much-needed information on the evolution of the South Asian monsoon system since the Eocene and its link to Himalayan weathering and erosion.
    Type of Medium: Online Resource
    Pages: XIV, 400 p. 140 illus., 120 illus. in color. , online resource.
    Edition: 1st ed. 2020.
    ISBN: 9783030398439
    Series Statement: Society of Earth Scientists Series,
    DDC: 550
    Language: English
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  • 2
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    In:  XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
    Publication Date: 2023-07-07
    Description: The Indian shield is a mosaic of Archean cratons and Proterozoic mobile belts along with many intra-cratonic rift basins and major volcanic provinces. These Precambrian terrains preserve the imprints of earlier supercontinental cycles and major tectono-thermal events through which the Indian shield crust had evolved. In this study, we analyze different scales gravity anomalies for a better understanding of the subsurface in terms of structure below cratons and mobile belts through mapped fault/shear zones, magmatic events revealing the extent of underplating and crustal thickness variations. Large amount of crustal seismic data are used to carry out the 3-D nonlinear seismically constrained gravity inversion to delineate the Moho structure as well as density heterogeneities across the different domains. The inversion gave rise to Moho depth variations between 30-65 km with the best-fit mean difference of ~ -0.37 km and standard deviation of ~ 4 km with the seismic data. The derived structure reveals a distinct characteristics below the cratons and mobile belts with a generalized shallow Moho below the rift basins and volcanic provinces. Further, these results along with the seismological LAB depth estimates are used to obtain many insights on the nature of the craton-mobile belt interactions to understand the lithosphere evolution since the Proterozoic times.
    Language: English
    Type: info:eu-repo/semantics/conferenceObject
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