Results 81 to 90 of about 35,079 (237)
Ductile Extrusion Triggered by Continental Collision in NE Brazil
Terra Nova, Volume 38, Issue 4, Page 266-277, August 2026.ABSTRACT The Borborema Province in northeastern Brazil hosts one of the world's largest strike‐slip shear zone networks, active during the late Neoproterozoic assembly of West Gondwana. Whether these shear zones initiated during active continental collision or as a post‐orogenic response to far‐field stresses remains debated.
L. R. Tesser +6 more
wiley +1 more source
Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.Abstract We investigate the structure and tectonic environment in the crust and upper mantle beneath the North China Craton (NCC) by conducting a full‐waveform inversion of teleseismic P and its coda waves from densely distributed broadband seismic stations. A high‐resolution model involving P‐ and S‐wave velocities as well as density is constructed by
Xuan Zhao +4 more
wiley +1 more source
Metastable Nanosized Diamond Formation from Fluid Systems [PDF]
, 2010 The model of nanosized diamond particles formation at metastable P-T parameters from fluid is presented. It explains the specific of CVD diamond synthesis gases mixtures and hydrothermal growth of diamond at low P-T parameters as well as it explains the ...
Sergei Simakov
core +2 more sources
A Vast Valley Network Beneath the Greenland Ice Sheet
Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.Abstract Mapping subglacial topography along the margin of the Greenland Ice Sheet was revolutionized by reconciling measurements of ice thickness and surface velocity using the principle of mass conservation. Despite evidence that many subglacial valleys resolved by that method extend upstream, it cannot be applied to the ice sheet's slower‐flowing ...
Allison M. Chartrand +6 more
wiley +1 more source
Impact origin of Archean cratons
, 2015 Archean cratons consist of crustal granite-greenstone terrains (GGTs) coupled to roots of strong, buoyant cratonic lithospheric mantle (CLM). Although this association is unique to the Archean and formed from ca. 4.0 to 2.5 Ga, the origins of terrestrial
V. Hansen
semanticscholar +1 more source
Paleosecular Variation Constraints on Geomagnetic Field Morphology at ca. 1100 Ma
Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.Abstract Paleosecular variation provides a statistical test of long‐term geomagnetic field morphology, but its behavior across Precambrian polarity regimes remains poorly constrained. We compile a virtual geomagnetic pole dispersion data set spanning 1130–1070 Ma and apply nonlinear Model G fitting to evaluate field structure across the interval ...
Hanqing Zhao +7 more
wiley +1 more source
Metallogeny and craton destruction: Records from the North China Craton
Ore Geology Reviews, 2014 Abstract The link between metallogeny and craton destruction in the North China Craton (NCC) remains poorly understood, particularly the mechanisms within the interior of the craton. In this overview, we summarize the major stages in the history of formation and evolution of the NCC, the spatio-temporal distribution and types of major ore species, as
Sheng-Rong Li, M. Santosh
openaire +1 more source
African Hot Spot Volcanism: Small-Scale Convection in the Upper Mantle Beneath Cratons [PDF]
, 2000 Numerical models demonstrate that small-scale convection develops in the upper mantle beneath the transition of thick cratonic lithosphere and thin oceanic lithosphere.
Ritsema, Jeroen, King, Scott D.
core
Les granites des Vosges moyennes : un exemple de granites de cratons formés par palingenèses successives [PDF]
, 1967 Man unterscheidet Granite, die für die beiden Zonen der mittleren Vogesen spezifisch sind. Es handelt sich immer um kratonische Granite. Sie haben sich wahrscheinlich durch anatektische Palingenese aus älteren Gesteinen gebildet.
Hameurt, J.
core +1 more source
CO-EVOLUTION OF PROTEROZOIC CRATONIC FRAGMENTS IN WESTERN AND NORTHERN MONGOLIA
Геодинамика и тектонофизика, 2017 CAOB occupies a vast area that extends from the Urals to the Far East Asia and from the Siberian craton to the North China and Tarim cratons (Fig. 1, A).
Uyanga Bold +2 more
doaj +1 more source