Results 81 to 90 of about 859 (200)
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 3, March 2026.Abstract The subduction of the Paleo‐Pacific Plate beneath the NE Asian continental margin induced extensive magmatism, providing an excellent opportunity to investigate the interplay between plate dynamics, arc magmatism, continental crust formation, and porphyry mineralization.
Honghui Wang +5 more
wiley +1 more source
Progress and challenges of big data research on petrology and geochemistry
Solid Earth Sciences, 2018 We are entering the era of big data, and big data achievements have benefited ordinary people. However, big data application in geochemistry research has not been really appreciated. Big data is a kind of method and a pattern of thought.
Shoutao Jiao +5 more
doaj +1 more source
Slab Gap‐Related Intraplate Magmatism as a Proxy of Maximum Flat Slab Extent in Patagonia
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 3, March 2026.Abstract Establishing the frontal extent of ancient flat subduction events from the geologic record can be challenging. This difficulty arises because magmatic activity in the arc typically ceases during complete slab flattening, and other meaningful proxies are usually absent. To address this issue, we examine early Paleocene intraplate magmatic units
C. R. Navarrete +3 more
wiley +1 more source
Unraveling the link between worldwide adakite-like rocks and porphyry Cu deposits
Adakite-like rocks, as an important recorder of magmatic evolution in mantle and crust, are closely associated with major porphyry Cu deposits. However, the underlying mechanism connecting these associations remains insufficiently elucidated.
Wu, Chao, Chen, Guoxiong, Chen, Huayong
core +1 more source
Post-ridge-subduction acceleration of the Indian plate induced by slab rollback
Solid Earth Sciences, 2018 The driving forces of plate motion, especially that of its sudden change over time, has long been debated. During the closure of an old ocean, the subduction process of the mid-ocean ridge provides valuable clues to quantitative evaluation of the driving
Wei-dong Sun +11 more
doaj +1 more source
Provenance Reassessment of Eocene Turbidites, New Caledonia: Inferences for Obduction Models
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.Abstract Provenance of pre‐obduction Eocene turbidites from New Caledonia is used to better constrain their geodynamic context and inform debate on subduction polarity. Chemical compositions of detrital clinopyroxenes in arenites are compared against potential sources.
Dominique Cluzel +7 more
wiley +1 more source
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.Abstract The formation, storage, and evolution of granitic magmas are fundamental processes driving the growth of continental crust. While traditionally attributed to crystal fractionation in high‐melt fraction magma chambers, the model invoking low‐melt fraction crystal mushes has gained wide acceptance.
Wang Li +5 more
wiley +1 more source
, 2003 International audienceThe Au–Fe mineralized granitoids at Mezcala district have a porphyry texture with a quartz+feldspar microcrystalline matrix and phenocrysts of plagioclase, quartz (with reaction rims), hornblende and biotite.
Carrillo-Chávez, A. +5 more
core +1 more source
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 10, October 2025.Abstract The Zagros orogen records the closure of the Neotethys Ocean by northward subduction of the oceanic slab beneath the Iranian plate. Northwestern Iran has undergone episodic volcanism since the Eocene, due to a shift of tectonic regimes from subduction to collision and post‐collisional extension, although the dynamics responsible for such ...
Farzaneh Shakerardakani +5 more
wiley +1 more source
Journal of Economic Geology, 2012 Tertiary intrusive granitoids within the Lut block in the Khorasan Razavi and South Khorasan provinces are mainly sub-volcanic with porphyry texture and their composition varies from granite to diorite but monzonite is dominant.
Mohammad Hassan Karimpour +3 more
doaj +3 more sources