Results 161 to 170 of about 196,173 (215)

Lithospheric Mantle Deformation beneath the Indian Cratons

The Journal of Geology, 1999
The nature of deformation of the deep continental roots beneath the Archean-Early Proterozoic terrains opens the question whether these ancient terrains have had stable roots since the Precambrian or whether recent plate motions have deformed them. In view of this, we make an attempt to study the thermal structure beneath the cratonic regions of the ...
, Pandey, , Agrawal
openaire   +2 more sources

Role of the lithosphere in mantle convection

Journal of Geophysical Research: Solid Earth, 1988
Plate geometry and kinematics generally reflect the mechanical properties of the solid lithosphere rather than those of the fluid mantle underneath, and plate formation and subduction account for most of the heat transport from the Earth's interior. Correspondingly, mantle convection models must incorporate a stiff but mobile boundary layer, like the ...
openaire   +1 more source

A subduction origin for komatiites and cratonic lithospheric mantle

South African Journal of Geology, 2004
We present a model in which the generation of komatiites in Archaean subduction zones produced depleted mantle residues that eventually formed the highly depleted portions of the Kaapvaal lithospheric mantle. The envisioned melting process is similar to that which has formed boninites in Phanerozoic subduction zones such as the Izu-Bonin-Mariana arc ...
Parman, Stephen W, Grove, Timothy L, Dann, Jessc C, De Wit, Maarten J   +3 more
openaire   +2 more sources

Secular craton evolution due to cyclic deformation of underlying dense mantle lithosphere

Nature Geoscience, 2023
Yaoyi Wang, Zebin Cao, Lihang Peng, Lijun Liu, Ling Chen, C. Lundstrom, D. Peng, Xiaotao Yang   +7 more
semanticscholar   +1 more source

Moving lithospheric plates and mantle convection

Geophysical Journal International, 1979
Summary. The coupling between a rigidly moving lithospheric plate and a convecting mantle is investigated using a simple two-dimensional numerical model that incorporates a horizontally moving upper boundary, simulating the effect of a moving plate, over a fluid layer heated from below.
R. A. Lux, G. F. Davies, J. H. Thomas
openaire   +1 more source

Origin of the stratification of cratonic mantle lithosphere

Vestnik Otdelenia nauk o Zemle RAN, 2011
Compiled PTX diagram and trans-sects for sub-cratonic mantle lithosphere (SCLM) >of 150 kimberlitic pipes including those from Yakutia. Major regularities were determined for by the comparison of the PTX diagram for the subcratonic lithospheric mantle (SCLM) according to mantle xenoliths from large amount of the kimberlite pipes from N America Yakutia,
I. V. Ashchepkov, D. A. Ionov, T. Ntaflos, H. Downes, P. V. Afanasieva   +4 more
openaire   +1 more source

The influence of mantle metasomatism on the oxidation state of the lithospheric mantle

2009
The oxidation state, reflected in the oxygen fugacity (fO2), of the lithospheric mantle is both laterally and vertically heterogeneous. Depth-fO2 profiles from kimberlite-borne peridotitic mantle xenoliths from the Bultfontein kimberlite, Kimberley, South Africa and the A154-N and A154-S kimberlites of the Diavik Mine, NWT, Canada were constructed by ...
openaire   +1 more source

The Jurassic Danba hypozonal orogenic gold deposit, western China: indirect derivation from fertile mantle lithosphere metasomatized during Neoproterozoic subduction

Mineralium Deposita, 2020
Qingfei Wang, Hesen Zhao, D. Groves, Jun Deng, Qiwei Zhang, Shengchao Xue   +5 more
semanticscholar   +1 more source

Remobilization of metasomatized mantle lithosphere: a new model for the Jiaodong gold province, eastern China

Mineralium Deposita, 2019
Jun Deng, Qingfei Wang, M. Santosh, Xuefei Liu, Yayun Liang, Li‐Qiang Yang, R. Zhao, L. Yang   +7 more
semanticscholar   +1 more source

Basal continental mantle lithosphere displaced by flat-slab subduction

Nature Geoscience, 2018
G. Axen, J. V. van Wijk, C. Currie
semanticscholar   +1 more source