Results 261 to 270 of about 82,783 (326)

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, France Pattier, Renjie Zhou, Sébastien Meffre, Jonathan C. Aitchison, Pierre Maurizot, Maximilien Mathian, Jean‐Luc Devidal   +7 more
wiley   +1 more source

Reorientation and despinning of 4 Vesta formed the Divalia Fossae. [PDF]

Sci Adv
Cheng HCJ, Klimczak C, Matsuyama I.
europepmc   +1 more source

Rapakivi K‐Feldspar Megacrysts in Monzogranitic Porphyry: Evidence for Magma Recharge and Mush Rejuvenation

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, Xuxuan Ma, Roberto Weinberg, Liang Qiu, Zhiyong Zhu, Haibing Li   +5 more
wiley   +1 more source

Wholesale flat subduction of the Indian slab and northward mantle convective flow: Plateau growth and driving force of the India-Asia collision. [PDF]

Proc Natl Acad Sci U S A
Ma J, Song X, Bunge HP, Fichtner A, Tian Y.   +4 more
europepmc   +1 more source

Characteristics of ∼40 Ma Mafic Rocks in North Tibet and Their Tectonic Implications

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.
Abstract Several magmatic belts are present in the Tibetan Plateau. Among these, the Qiangtang magmatic belt in North Tibet remains elusive. In particular, the petrogenesis, magma source, and tectonic implications of the ultramafic to mafic rocks in the North Qiangtang area are underinvestigated due to their sparsity and remoteness.
Shifeng Wang, Licai Song, Shengting Zhang, Weifeng Xiao   +3 more
wiley   +1 more source

Variable mantle redox states driven by deeply subducted carbon. [PDF]

Sci Adv
Gao M, Wang Y, Foley SF, Xu YG.
europepmc   +1 more source

Seismic Anisotropy Analysis Across Southwestern Australia Reveals ENE‐Trending Lithospheric Architecture Linked to Archean Yilgarn Craton Formation

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.
Abstract The southwest region of Western Australia is one of the oldest continental regions on Earth, hosting the Archean Yilgarn Craton, bounded by the Proterozoic Albany‐Fraser and Pinjarra orogens. Here we calculate shear wave splitting of the PKS and SKS teleseismic phases using new broadband arrays with unprecedented station spacing across the ...
M. Gauntlett, C. M. Eakin, N. Bishoyi, P. Zhang, J.‐P. O’Donnell, R. E. Murdie, M. S. Miller, R. Pickle, R. Ebrahimi   +8 more
wiley   +1 more source

Evidence for metasomatic enrichment in the oceanic lithosphere and implication for the generation of intraplate basalts [PDF]

, 2011
Baumgartner, P. O., Buchs, David M., Cosca, M., Pilet, S.   +3 more
core  

Persisting influence of continental inheritance on early oceanic spreading. [PDF]

Sci Rep
Moulin A, Jónsson S.
europepmc   +1 more source

Origin of the King's Trough Complex (North Atlantic): Interplay Between a Transient Plate Boundary and the Early Azores Mantle Plume

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.
Abstract The King's Trough cuts into an area of thickened oceanic crust associated with the 45°N melting anomaly at the Mid‐Atlantic Ridge. Here we present a comprehensive geochemical data set and new 40Ar/39Ar age and bathymetric data from magmatic rocks from the King's Trough and the smaller Peake and Freen Deeps to the east and from the Gnitsevich ...
A. Dürkefälden, J. Geldmacher, F. Hauff, M. Stipp, D. Garbe‐Schönberg, D. A. Frick, B. Jicha, L. Pinto Ribeiro, M. Gutjahr, J. Schenk, K. Hoernle   +10 more
wiley   +1 more source