Results 161 to 170 of about 376,087 (268)
Abstract Ophiolitic mélanges and associated intrusions provide key archives for reconstructing the evolution of ancient ocean basins and subduction‐related mantle modification. The Hongliuhe–Niujuanzi–Xichangjing ophiolitic mélange in the central Beishan Orogen preserves important records of the Paleo‐Asian Ocean, but the timing of oceanic subduction ...
Yujia Song +4 more
wiley +1 more source
Abstract Precambrian supercontinent reconstructions largely rely on robust geological constraints. Among these, the basin affinities recorded by Precambrian sedimentary fragments preserved in orogenic belts provide critical evidence for resolving the paleogeographic configurations of microcontinents and continental blocks.
Yongcheng Li +14 more
wiley +1 more source
Distinct chalcophile-element inheritance from subducted continental crust in metasomatized mantle. [PDF]
Wang Z +13 more
europepmc +1 more source
Abstract Mid‐mantle (660–2,000 km) seismic observations are commonly attributed to thermo‐chemical heterogeneities or phase transitions, yet many observed features remain difficult to reconcile with these mechanisms alone. It has been shown that the depth‐dependent behavior of bridgmanite deformation generates a strain‐induced seismic discontinuity ...
John Keith Magali +3 more
wiley +1 more source
A comprehensive study of the evolutionary history of the Marun-Keu complex in the Polar Urals is presented. Utilizing both original data and published earlier information, this work establishes the temperature and pressure ranges corresponding to the ...
Aleksei V. Berezin +2 more
doaj
Searching for the remains of subducted continental slabs
openaire +1 more source
Abstract The North Altyn ophiolitic belt was formed by the subduction–closure of the Altyn segment of the Proto–Tethys Ocean and recorded the accretion of Tarim to northern Gondwana, but the timing of initial subduction and detailed tectonic transition processes remain poorly constrained. This study reports the oldest Phanerozoic magmatic record of 537
Long Chen +8 more
wiley +1 more source
Buried fragments reveal a "Greater Gondwana" supercontinent. [PDF]
Wang T +6 more
europepmc +1 more source
Role of Post‐Collisional Magmatism in Continental Growth and Reworking Since the Late Archean
Abstract The mechanisms responsible for the formation and compositional evolution of continental crust remain central questions in Earth science. Post‐collisional magmatism is widely preserved in the continental record; however, its contribution to crustal growth may be underestimated because enriched isotopic signatures obscure juvenile mantle input ...
Dongjian Ouyang +4 more
wiley +1 more source

