Results 41 to 50 of about 35,079 (237)
Modification of the lithospheric stress field by lateral variations in plate-mantle coupling [PDF]
, 2009 The presence of deeply penetrating continental roots may locally increase the magnitude of basal shear tractions by up to a factor of 4 compared to a layered viscosity structure.
Naliboff, JB +5 more
core +1 more source
Earth and Planetary Science Letters, 2019 Cratons are the most ancient parts of continents that are underlain by thick, cold, old and refractory lithospheric roots. However, how cratonic roots remain stable for billions of years and become remobilized later is still not well understood.
Xianlei Geng +5 more
semanticscholar +1 more source
Geosystems and Geoenvironment, 2022 The nature of crust and lithospheric mantle evolution of the Archean shields and their subsequent destruction through intraplate tectonic processes are important in understanding continental dynamics and resources.
A. Vasanthi, M. Santosh
doaj +1 more source
A Thermo‐Compositional Model of the Cratonic Lithosphere of South America
Geochemistry, Geophysics, Geosystems, 2021 New seismic data on the crust and upper mantle of South America have recently become available and describe its deep structure with unprecedented resolution.
N.‐P. Finger +5 more
doaj +1 more source
Linking the deep structures of the South American and African cratons by satellite gravity data [PDF]
, 2022 The cratons of South America and Africa once belonged together, forming the western part of the ancient supercontinent Gondwana. Very little is known about the lithospheric architecture of large parts of these cratons, because the data coverage of active
Haas, Peter
core
Two-step Gravity Inversion Reveals Variable Architecture of African Cratons
Frontiers in Earth Science, 2021 The lithospheric build-up of the African continent is still to a large extent unexplored. In this contribution, we present a new Moho depth model to discuss the architecture of the three main African cratonic units, which are: West African Craton, Congo ...
Peter Haas +3 more
doaj +1 more source
Palaeoarchaean TTGs of the Pilbara and Kaapvaal cratons compared; an early Vaalbara supercraton evaluated [PDF]
, 2021 The continental crust that dominates Earth’s oldest cratons comprises Eoarchaean to Palaeoarchaean (4.0 to 3.2 Ga) felsic intrusive rocks of the tonalite-trondhjemite-granodiorite (TTG) series.
Mulder, J.A. +4 more
core +1 more source
Review of the spatial distribution of kimberlite pipes in the tectonic structures of the world
Geo&BioKimberlite pipes are vertical or inclined cylindrical or cone-shaped bodies filled with kimberlite, an ultramafic igneous rock. The diameter of kimberlite pipes can vary from a few metres to 1.5 km, and their depth reaches several kilometres.
Andrii Luniachek
doaj +1 more source
Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2019 This study presents comparison of distribution and composition of Neoarchean sanukitoid massifs from Karelian (Fennoscandian Shield) and Bundelkhand (Indian Shield) Cratons.
Кумар Батук Джоши +3 more
doaj +1 more source
GEOROC Compilation: Archaean Cratons [PDF]
Compilation of geochemical and isotopic rock compositions from Archaean cratons held in the GEOROC database. Results are grouped by craton.
DIGIS Team
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