Results 61 to 70 of about 196,173 (215)

Effects of upper mantle heterogeneities on the lithospheric stress field and dynamic topography [PDF]

Solid Earth, 2018
The orientation and tectonic regime of the observed crustal/lithospheric stress field contribute to our knowledge of different deformation processes occurring within the Earth's crust and lithosphere.
A. Osei Tutu, A. Osei Tutu, B. Steinberger, B. Steinberger, S. V. Sobolev, S. V. Sobolev, I. Rogozhina, I. Rogozhina, A. A. Popov   +8 more
doaj   +1 more source

The lithospheric mantle and lower crust–mantle relationships under Scotland: a xenolithic perspective [PDF]

Journal of the Geological Society, 2011
Abstract: In the British Isles the majority of volcanic rocks containing upper mantle and lower crustal xenoliths occur in Scotland. Most of the occurrences are of Carboniferous–Permian age. This paper presents new data on the mineral chemistry of spinel lherzolite xenoliths from the five principal Scottish tectonic terranes ...
B. G. J. UPTON, H. DOWNES, BONADIMAN, Costanza, L. A. KIRSTEIN, P. G. HILL, T. NTAFLOS   +5 more
openaire   +2 more sources

The backarc mantle lithosphere in Patagonia, South America

Journal of South American Earth Sciences, 2004
The backarc Patagonia mantle underwent pervasive regional re-crystallisation that left only remnants of the pre-existing mantle. Anhydrous xenoliths (dominantly lherzolites and harzburgites, few dunites) are predominant. Xenoliths containing hydrous phases (lherzolites and harzburgites, rare wehrlites) abundantly occur only at G. Gregores.
RIVALENTI, Giorgio, MAZZUCCHELLI, Maurizio, LAURORA, Angela, Ciuffi SIA, Zanetti A, Vannucci R, Cingolani CA   +6 more
openaire   +6 more sources

Multi‐Stage Evolution of the South Australian Craton: Petrological Constraints on the Architecture, Lithology, and Geochemistry of the Lithospheric Mantle

Geochemistry, Geophysics, Geosystems, 2022
To improve the understanding of the formation and evolution of the sub‐continental lithospheric mantle (SCLM) underlying the South Australian Craton we have conducted a detailed petrological study on >3,000 mantle xenocrysts from 13 kimberlites emplaced ...
Z. J. Sudholz, G. M. Yaxley, A. L. Jaques, S. A. Cooper, K. Czarnota, W. R. Taylor, J. Chen, B. M. Knowles   +7 more
doaj   +1 more source

COMPOSITIONAL AND THERMAL DIFFERENCES BETWEEN LITHOSPHERIC AND ASTHENOSPHERIC MANTLE AND THEIR INFLUENCE ON CONTINENTAL DELAMINATION

Геодинамика и тектонофизика, 2015
The lower part of lithosphere in collisional orogens may delaminate due to density inversion between the asthenosphere and the cold thickened lithospheric mantle. Generally, standard delamination models have neglected density changes within the crust and
A. I. Kiselev, A. V. Ivanov, B. S. Danilov   +2 more
doaj   +1 more source

Lithosphere-Mantle Interactions

, 2018
Ph.D.
openaire   +1 more source

Volcanism and long-term seismicity controlled by plume-induced plate thinning

Nature Communications
Mantle plumes, the hot upwellings from the Earth’s core-mantle boundary, are thought to trigger surface uplift and the emplacement of large igneous provinces (LIPs). Magmatic centres of many LIPs are scattered over thousands of kilometres.
Raffaele Bonadio, Sergei Lebedev, David Chew, Yihe Xu, Javier Fullea, Thomas Meier   +5 more
doaj   +1 more source

Tibetan and Indian lithospheres in the upper mantle beneath Tibet: Evidence from broadband surface‐wave dispersion

Geochemistry, Geophysics, Geosystems, 2013
Broadband seismic experiments over the last two decades have produced dense data coverage across Tibet. Yet, the mechanism of the India‐Asia lithospheric convergence beneath it remains a puzzle, with even its basic features debated and with very ...
Matthew R. Agius, Sergei Lebedev
doaj   +1 more source

The Magnetic Signature of Shear Zones in Marbles and Experimental Simulations

Geoscience Data Journal, Volume 13, Issue 4, October 2026.
This dataset explores how strain, microstructure, texture and magnetic susceptibility interact in natural and experimental shear zones. It includes data from low‐ and high‐temperature marble shear zones and analogue experiments simulating different deformation regimes.
Vladimír Kusbach, Zuzana Roxerová, Matěj Machek, Monika Kučeráková, Stanislav Vratislav, Anna Vávrová, Martin Chadima, Pedro F. Silva, Martin Racek   +8 more
wiley   +1 more source

Epeirogenic transients related to mantle lithosphere removal in the southern Sierra Nevada region, California: Part II. Implications of rock uplift and basin subsidence relations

, 2013
We investigate the putative Pliocene–Quaternary removal of mantle lithosphere from beneath the southern Sierra Nevada region using a synthesis of subsidence data from the Great Valley, and geomorphic relations across the Sierra Nevada. These findings are
J. Saleeby, Z. Saleeby, L. Pourhiet
semanticscholar   +1 more source