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<datestamp>2018-01-11</datestamp>
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<title lang=en>Flexure of the India plate underneath the Bhutan Himalaya</title>
<creator>Hammer, Paul</creator>
<creator>BERTHET, Theo</creator>
<creator>Hetenyi, Gyoergy</creator>
<creator>Cattin, Rodolphe</creator>
<creator>Drukpa, Dowchu</creator>
<creator>Chophel, Jamyang</creator>
<creator>Lechmann, Sarah</creator>
<creator>Lemoigne, Nicolas</creator>
<creator>Champollion, Cedric</creator>
<creator>DOERFLINGER, Erik</creator>
<contributor>Eidgenössische Technische Hochschule [Zürich] (ETH Zürich)</contributor>
<contributor>Risques ; Géosciences Montpellier ; Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS) - Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Department of Geology and Mines, Ministry of Economic Affairs, Thimphu ; Université du Québec</contributor>
<description>International audience</description>
<source>ISSN: 0094-8276</source>
<source>EISSN: 1944-8007</source>
<source>Geophysical Research Letters</source>
<publisher>American Geophysical Union</publisher>
<identifier>hal-00903564</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-00903564</identifier>
<source>https://hal.archives-ouvertes.fr/hal-00903564</source>
<source>Geophysical Research Letters, American Geophysical Union, 2013, 40 (16), pp.4225-4230. 〈10.1002/grl.50793〉</source>
<identifier>DOI : 10.1002/grl.50793</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1002/grl.50793</relation>
<language>en</language>
<subject lang=en>rheology</subject>
<subject lang=en>eastern Himalayas</subject>
<subject lang=en>flexure</subject>
<subject lang=en>lithosphere</subject>
<subject lang=en>gravity</subject>
<subject lang=en>effective elastic thickness</subject>
<subject>[SDU.STU.TE] Sciences of the Universe [physics]/Earth Sciences/Tectonics</subject>
<subject>[SDE.MCG] Environmental Sciences/Global Changes</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>We investigate flexural geometry and rheology of the India plate beneath the eastern Himalaya from a new gravity data set acquired in Bhutan. Compared to the well‒studied Nepal Himalaya, the obtained Bouguer anomaly profiles across the range show shorter wavelength flexure of the lithosphere with a narrower and shallower foreland basin. This new data set and seismic Moho constraints are interpreted together in terms of lithospheric flexure using a 2‒D thermomechanical model. Our results suggest that the strongest layer of the continental lithosphere beneath Bhutan is the upper mantle, as it is beneath Nepal. The observed west‒to‒east decrease in flexural wavelength is associated with weakening mantle rheology. The simulations show that this decrease can be related to ductile mantle behavior: either hydrated wet dunite or dry and hot olivine rheology. Both models display decoupled lithospheric layers leading to an eastward decrease of flexural rigidity from ∼1024 to ∼5*1022 N m in Nepal and Bhutan, respectively.</description>
<date>2013-08-28</date>
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