Results 151 to 160 of about 196,173 (215)

Alkali-carbonate fluids in the lithospheric mantle

International Kimberlite Conference Extended Abstracts: 2012, 2019
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Mantle and sub-lithosphere mantle gravity maps from the LITHO1.0 global lithospheric model

Earth-Science Reviews, 2019
Abstract Methods for a spherical harmonic analysis and synthesis of global gravitational and lithospheric structure models are applied to compile the mantle and sub-lithospheric mantle gravity maps. Both gravity maps are then interpreted and assessed by means of their accuracy.
Robert Tenzer, Wenjin Chen
exaly   +2 more sources

Boundaries of mantle–lithosphere domains in the Bohemian Massif as extinct exhumation channels for high-pressure rocks

Gondwana Research, 2013
Jaroslava Plomerová, Vladislav Babuska   +1 more
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Removing mantle lithosphere under orogens: delamination versus convective thinning

Geophysical Journal International, 2019
Thinning of the lithosphere under continental collisional orogens is often attributed to delamination or convective thinning. Both processes remove part or all of the mantle lithosphere that has become denser and gravitationally unstable.
Tian Lei, Zhong‐Hai Li, Mian Liu
semanticscholar   +1 more source

Heterogeneous lithospheric mantle

2021
<p>The lithosphere is a thermal boundary layer atop mantle convection and a chemical boundary layer formed by mantle differentiation and melt extraction. The two boundary layers may everywhere have different thicknesses. Worldwide, the thicknesses of thermal and chemical boundary layers vary significantly, reflecting thermal and ...
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The continental lithospheric mantle: characteristics and significance as a mantle reservoir

Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 2002
The continental lithospheric mantle (CLM) is a small-volumed (ca. 2.5% of the total mantle), chemically distinct mantle reservoir that has been suggested to play a role in the source of continental and oceanic magmatism. It is our most easily identifiable reservoir for preserving chemical heterogeneity in the mantle.
Pearson, D. G., Nowell, G. M.
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Oceanic origin of continental mantle lithosphere

Geology, 2018
1 GSA Data Repository item 2018397, supplementary information on surface geology of cratons, supplementary figures, and Table DR1(data and sources for all cratons), is available online at http://www.geosociety.org/datarepository/2018/ or on request from ...
Andrea Servali, J. Korenaga
semanticscholar   +1 more source

Layering of subcontinental lithospheric mantle

Science Bulletin, 2017
Recent seismic studies reveal a sharp velocity drop mostly at ∼70-100km depth within the thick mantle keel beneath cratons, termed the mid-lithosphere discontinuity (MLD). The common presence of the MLD in cratonic regions indicates structural and property layering of the subcontinental lithospheric mantle (SCLM).
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Mantle flow and the evolution of the lithosphere

Physics of the Earth and Planetary Interiors, 1993
Abstract The evolution of the lithosphere is mainly controlled by time-dependent forces due to (1) plate tectonic processes and (2) sublithospheric mantle flow. Plate tectonic processes like continental collision may provide strong thermal disturbances and, after completion, may trigger secondary convection beneath the lithosphere.
H. Schmeling, Gabriele Marquart
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The Role of Halogens in the Lithospheric Mantle

2018
The present chapter focuses on the still poorly known sources, distribution and fractionation of halogens in the oceanic and continental lithospheric mantle in intraplate and extensional tectonic settings, and in the deep cratonic sub-continental mantle that hosts diamonds and kimberlites.
Frezzotti, ML, Ferrando, S
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