Geochemistry, Geophysics, Geosystems, 2021 A key feature of subduction zone geodynamics and thermal structure is the point at which the slab and mantle mechanically couple. This point defines the depth at which traction between slab and mantle begins to drive mantle wedge circulation and also ...
Buchanan C. Kerswell +2 more
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Patched removal of the mantle lithosphere under orogens: A systematic numerical study
Frontiers in Earth Science, 2023 Delamination or convective thinning could cause large-scale and complete removal of the mantle lithosphere under orogens. However, geological and geophysical observations suggest that patched removal of the mantle lithosphere has occurred in some orogens,
Tian Lei +6 more
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Effects of Composite Rheology on Plate‐Like Behavior in Global‐Scale Mantle Convection
Geophysical Research Letters, 2023 Earth's upper mantle rheology controls lithosphere‐asthenosphere coupling and thus surface tectonics. Rock deformation experiments and seismic anisotropy measurements indicate that composite rheology (co‐existing diffusion and dislocation creep) occurs ...
Maëlis Arnould +2 more
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Lithospheric Thinning by Mantle Plumes [PDF]
ASEG Extended Abstracts, 2016 Thermo-mechanical thinning of the lithosphere by mantle plumes is essential for intra-plate volcanism, the initiation of rifting, the evolution of Earth’s lower continental crust and the genesis of metals, diamonds and hydrocarbons. To develop a new understanding of how a mantle plume thins the overlying lithosphere beneath moving plates, we use 2-D ...
Manon Dalaison, Rhodri Davies
openaire +1 more source
Long-term memory of subduction processes in the lithospheric mantle: evidence from the geochemistry of basic dykes in the Gardar Province of South Greenland [PDF]
, 2002 The rift-related magmas of the Proterozoic Gardar Igneous Province were emplaced across the contact between the South Greenland Archaean craton and the Palaeoproterozoic Ketilidian mobile belt.
Ellam, R.M. +2 more
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Mantle roots of the Emeishan plume: an evaluation based on teleseismic P-wave tomography [PDF]
Solid Earth, 2017 The voluminous magmatism associated with large igneous provinces (LIPs) is commonly correlated to upwelling plumes from the core–mantle boundary (CMB). Here we analyse seismic tomographic data from the Emeishan LIP in southwestern China.
C. He, M. Santosh, M. Santosh
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Deep lithospheric dynamics beneath the Sierra Nevada during the Mesozoic and Cenozoic as inferred from xenolith petrology [PDF]
, 2001 Peridotite xenoliths erupted in late Miocene basalts (~8 Ma) in the central Sierra Nevada sample a lithosphere that is vertically stratified in terms of age and thermal history.
Brimhall, George H., Jr. +2 more
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Mantle-flow diversion beneath the Iranian plateau induced by Zagros’ lithospheric keel
Scientific Reports, 2021 Previous investigation of seismic anisotropy indicates the presence of a simple mantle flow regime beneath the Turkish-Anatolian Plateau and Arabian Plate.
Ayoub Kaviani +8 more
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3-D multiobservable probabilistic inversion for the compositional and thermal structure of the lithosphere and upper mantle: III. Thermochemical tomography in the Western-Central U.S. [PDF]
, 2016 Acknowledgments We are indebted to F. Darbyshire and J. von Hunen for useful comments on earlier versions of this work. This manuscript benefited from thorough and constructive reviews by W. Levandowski and an anonymous reviewer.
Aoki K. +10 more
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Geosystems and Geoenvironment, 2022 Cratons are the stable portions of the continents for at least the past two billion years. Their longevity is generally attributed to their thick, cold, rheologically strong and chemically depleted subcrustal mantle lithosphere.
V. Vijaya Rao, Damodara Nara
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