Results 61 to 70 of about 384 (188)

Differential Mountain‐Building in the South Tian Shan Revealed by Multi‐Spatiotemporal Foreland Deformation

open access: yesTectonics, Volume 45, Issue 2, February 2026.
Abstract Understanding how spatially variable mountain‐building processes proceed within large intracontinental orogens provides critical insights into continental tectonics and regional paleoenvironmental evolution. Here, we address this issue in the central South Tian Shan (cSTS), a key transitional segment between the well‐studied eastern and ...
Feng Li   +11 more
wiley   +1 more source

Petrogenesis and age of skarns associated with felsic and metamafic dykes from the Paraíba do Sul Complex, southern Espírito Santo State

open access: yesBrazilian Journal of Geology
: This paper concerns the study of petrography, mineral chemistry and geochronology of skarns generated at the contact of marbles of the Paraíba do Sul Complex with felsic and metamafic dykes in the southern Espírito Santo State.
Raissa Beloti de Mesquita   +4 more
doaj   +1 more source

The Southern Zagros Collisional Orogen: New Insights From Transdimensional Trees Inversion of Seismic Noise

open access: yesGeophysical Research Letters, 2020
Imaging and resolving the lateral continuity of 3‐D crustal structures enhance our ability to interpret seismicity and to understand how orogens are created.
S. Pilia   +4 more
doaj   +1 more source

Heat and Tectonics of the Canadian Cordillera From the Seismically Constrained Inversion of Gravity Data

open access: yesTectonics, Volume 45, Issue 2, February 2026.
Abstract An updated approach to seismically constrained modeling of gravity data reveals two broad, NW‐trending low‐density zones in the mantle lithosphere beneath the Canadian Cordillera. The low‐density zones coincide with a shallow lithosphere‐asthenosphere boundary (LAB), a shallow Curie‐point depth, and the location of Quaternary volcanoes.
Nathan Hayward, Tark S. Hamilton
wiley   +1 more source

Xenolith Zircons Record the Long Geological History of India‐Asia Convergence: Results From U‐Pb Depth Profiling

open access: yesGeophysical Research Letters
Continental crust forms in magmatic arcs and transforms through collision, as seen in the Tibetan crust shaped by Neo‐Tethyan subduction and India‐Asia collision.
Wen‐Rui Sun   +4 more
doaj   +1 more source

The Impact of Orogenic Inheritance on Rifted Margin Formation

open access: yesTectonics, Volume 45, Issue 2, February 2026.
Abstract Many rifted margins form within pre‐existing orogenic belts, emphasizing the significance of structural, thermal, and compositional inheritance in shaping rift dynamics. However, a key unresolved question is how these different types of orogenic inheritance individually influence rift evolution.
Kai Li   +4 more
wiley   +1 more source

From Magma Formation to Eruption: Temperature Path of Two Late Carboniferous Post‐Collisional Calderas (Bohemian Massif)

open access: yesGeochemistry, Geophysics, Geosystems
The thermal evolution of magmatic systems of the Altenberg‐Teplice and Tharandter Wald calderas, which erupted during the terminal post‐collisional phase of the Variscan orogeny in the Bohemian Massif, was investigated. The zircon saturation temperatures
I. Olšanská   +7 more
doaj   +1 more source

Geochemistry, Sm-Nd isotopes and SHRIMP U-Pb geochronology of the Morro do Coco Granite (RJ, Brazil): another piece of the post-collisional magmatism of the Ribeira Belt

open access: yesBrazilian Journal of Geology
The Morro do Coco granite (MC) is a post-collisional intrusive body that was emplaced at Ribeira Belt, in the Cambro-Ordovician, succeeding the final stages of the Gondwana supercontinent amalgamation.
Fellippe Roberto Alves Bione   +3 more
doaj   +1 more source

Contrasting subduction modes in the Variscan collisional orogen

open access: yes, 2015
The Variscides of Europe and N-Africa represents a classical collisional orogen (400-300 Ma) caused by the prolonged convergence of the continents of Gondwana and Laurussia. Orogen wide exposures of continental (ultra) high pressure units proves the presence of subduction processes concomitant with the accretion of unsubductable microcontinental blocks
U. Kroner, R. L. Romer
openaire   +3 more sources

Dating the Orosirian orogen-parallel shear zones in the western Khondalite Belt, North China Craton: new constraints from monazite, titanite and apatite U-Pb ages

open access: yesFrontiers in Earth Science
A series of NE-to E-trending ductile shear zones are widely distributed in the Khondalite Belt, a Paleoproterozoic collisional orogen in the North China Craton.
Hengzhong Qiao   +3 more
doaj   +1 more source

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