Results 81 to 90 of about 51,740 (216)

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

Geophysical 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, J. A. Jackson, R. Hawkins, A. Kaviani, M. Y. Ali   +4 more
doaj   +1 more source

A short-duration pulse of ductile normal shear on the outer South Tibetan detachment in Bhutan : alternating channel flow and critical taper mechanics of the eastern Himalaya [PDF]

, 2007
In easternmost Bhutan the South Tibetan detachment (STD) is a ductile shear zone that juxtaposes the Radi (or Sakteng) klippe of the Tethyan Sedimentary Series from underlying high-grade Greater Himalayan rocks.
Argles, Tom, Parrish, Randall, Randall Parrish, Jennifer Chambers, Nigel Harris, Matthew Horstwood, Horstwood, Matthew, Harris, Nigel, Tom Argles, Chambers, Jennifer, Hirst, A. J., Hopgood, A. A., Arlges, Tom   +12 more
core   +1 more source

New clues for magma-mixing processes using petrological and geochronological evidence from the Castelo Intrusive Complex, Araçuaí Orogen (SE Brazil).

, 2022
Bimodal magmatism was recorded during the post-collisional stage that occurred during the Brasiliano/Pan-African cycle in the Araçuaí Orogen (southeastern Brazil) at ∼500 Ma.
Oliveira, Hudson Costa, Melo, Marilane Gonzaga de, Macêdo, Iago Mateus Lopes de, Geraldes, Mauro César, Marques, Rodson de Abreu, Tavares, Armando Dias, Martins, Maria Virgínia Alves, Rodrigues, Renzo Dias   +7 more
core   +1 more source

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

Brazilian 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, Hanna Jordt-Evangelista, Gláucia Nascimento Queiroga, Edgar Batista de Medeiros Júnior, Ivo Antônio Dussin   +4 more
doaj   +1 more source

Late Mesozoic rifting at the flanks of the Dzhagda segment of the Mongolia-Okhotsk collisional orogen: global and regional aspects

Геодинамика и тектонофизика, 2017
The role of rifting in the formation of the recent structure of the Mongolia-Okhotsk orogen is extremely high, but it is still underestimated with regard to flanks of the Dzhagda segment of this orogen.
G. L. Kirillova
doaj   +1 more source

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

Geophysical 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, Roberto Weinberg, Rui Wang, Li Liu, Liang‐Liang Zhang   +4 more
doaj   +1 more source

A-type Medina batholith and post-collisional anatexis in the Araçuaí orogen (SE Brazil).

, 2018
The Medina batholith and its host granitic migmatites record intriguing plutonic processes in the northern Araçuaí orogen (SE Brazil). This orogen shows a long lasting (630–480 Ma) succession of granite production events from the earliest pre ...
Queiroga, Gláucia Nascimento, Soares, Antônio Carlos Pedrosa, Medeiros Júnior, Edgar Batista de, Serrano, Paula, Dussin, Ivo Antonio, Lana, Cristiano de Carvalho, Boa, Tobias Fonte, Araujo, Cristina Santos   +7 more
core   +1 more source

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

Geochemistry, 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, F. Tomek, C. Robustelli Test, E. Zanella, M. Svojtka, J. Trubač, F. Cifelli, F. Finger   +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

Brazilian 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, Everton Marques Bongiolo, Julio Cezar Mendes, Camila Leão Roland   +3 more
doaj   +1 more source

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

Frontiers 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, Miao Liu, Chencheng Dai, Shangjing Wu   +3 more
doaj   +1 more source