Results 21 to 30 of about 16,733 (259)

Early Cambrian U-Pb zircon age and Hf-isotope data from the Guasayán pluton, Sierras Pampeanas, Argentina: implications for the northwestern boundary of the Pampean arc [PDF]

, 2016
An Early Cambrian pluton, known as the Guasayán pluton, has been identified in the central area of Sierra de Guasayán, northwestern Argentina. A U?Pb zircon Concordia age of 533 ± 4 Ma was obtained by LA-MC-ICP-MS and represents the first report of ...
Alasino, Pablo Horacio, Baldo, Edgardo Gaspar Agustín, Basei, Miguel A. S., da Costa Campos Neto, Mario, Dahlquist, Juan Andrés, Rapela, Carlos Washington, Uran, Gimena Mariel, Verdecchia, Sebastián Osvaldo, Zandomeni, Priscila Soledad   +8 more
core   +2 more sources

Application of in-situ gamma spectrometry for radiogenic heat production estimation in the Western Himalaya, Kohistan, and Karakoram in northern Pakistan

Geothermal Energy, 2023
The Himalaya, Kohistan, and Karakoram ranges comprise Proterozoic to Cenozoic crystalline complexes exposed in northern Pakistan. Numerous hot springs in the area indicate high subsurface temperatures, prompting a need to evaluate the local contribution ...
Muhammad Anees, Jonas Kley, Bernd Leiss, David Hindle, Ali Abbas Wajid, Bianca Wagner, Mumtaz M. Shah, Elco Luijendijk   +7 more
doaj   +1 more source

Permian Remelting and Maturity of Continental Crust Revealed by the Daqing Peraluminous Granitic Batholith, Inner Mongolia

Lithosphere, 2022
The Phanerozoic granites in northeast China bear key information for studying the tectonic evolution and crustal growth or reworking in the Central Asian Orogenic Belt (CAOB). The Daqing granitic batholith widely outcrops as a high-level intrusion in the
Jialiang Li, Jingao Liu, Chen Wu, Di-Cheng Zhu   +3 more
doaj   +1 more source

Schedule of Mafic to Hybrid Magma Injections Into Crystallizing Felsic Magma Chambers and Resultant Geometry of Enclaves in Granites: New Field and Petrographic Observations From Ladakh Batholith, Trans-Himalaya, India

Frontiers in Earth Science, 2020
Diorites, granites, and associated magmatic enclaves and dykes constitute the bulk of the Ladakh Batholith, which is an integral part of the Trans-Himalayan magmatic arc system.
Santosh Kumar
doaj   +1 more source

SHRIMP ion probe zircon geochronology and Sr and Nd isotope geochemistry for southern Longwood Range and Bluff Peninsula intrusive rocks of Southland, New Zealand [PDF]

, 2006
Permian–Jurassic ultramafic to felsic intrusive complexes at Bluff Peninsula and in the southern Longwood Range along the Southland coast represent a series of intraoceanic magmatic arcs with ages spanning a time interval of 110 m.y.
Aronson JL, Bignall G, Bryan WB, Challis GA, Corfu F, Devereux I, Ewart A, Graham IJ, Hanchar JM, Kroenke LW, Mossman DJ, Mutch AR, Mutch AR, Rombouts M, Wadsworth CA, Williams JG   +15 more
core   +2 more sources

Mesoscopic and Microscopic Magmatic Structures in the Quxu Batholith of the Gangdese Belt, Southern Tibet: Implications for Multiple Hybridization Processes

Frontiers in Earth Science, 2021
The Quxu batholith of the Gangdese magmatic belt, southern Tibet, comprises predominantly Early Eocene calc-alkaline granitoids that feature a variety of types of magmatic microgranular enclaves and dikes.
Xuxuan Ma, Xuxuan Ma, Zhongbao Zhao, Zhongbao Zhao, Wenrong Cao, He Huang, Fahui Xiong, Fahui Xiong, Tarryn Cawood, Haibing Li, Haibing Li   +10 more
doaj   +1 more source

Thermochronology of the modern Indus River bedload: New insight into the controls on the marine stratigraphic record [PDF]

, 2004
The Indus River is the only major drainage in the western Himalaya and delivers a long geological record of continental erosion to the Arabian Sea, which may be deciphered and used to reconstruct orogenic growth if the modern bedload can be related to ...
Ali Athar Khan, Anczkiewicz, Andrew Carter, Ballard, Black, Brookfield, Carpena, Carter, Carter, Charlotte M. Allen, Cherniak, Clift, Clift, Clift, Compston, Copeland, Copeland, Corrigan, Cumming, DeCelles, Dunlap, Finlayson, Fontan, Foster, Fraser, Galy, Garzanti, Garzanti, George, Green, Guillot, Harrison, Hirata, Hodges, Hodges, Hodges, Honegger, Horn, Hubbard, Ian H. Campbell, Jain, Kip V. Hodges, Koppers, Krol, Krol, Kumar, Lee, Malcolm S. Pringle, Maluski, Metcalfe, Molnar, Moore, Najman, Najman, Noble, Parrish, Parrish, Pearce, Peter D. Clift, Poupeau, Renne, Rowley, Schärer, Schärer, Searle, Searle, Searle, Searle, Searle, Searle, Sorkhabi, Sorkhabi, Stephenson, Stüwe, Stüwe, Treloar, Treloar, Vannay, Villa, Walker, Weinberg, White, Winslow, Xifan Zhang, Zeilinger, Zeitler, Zeitler, Zeitler, Zeitler, Zeitler, Zhang   +90 more
core   +2 more sources

Reassessing the intrusive tempo and magma genesis of the late Variscan Aar batholith: U–Pb geochronology, trace element and initial Hf isotope composition of zircon

Swiss Journal of Geosciences, 2022
The Variscan orogeny was responsible for the formation of a significant volume of igneous basement throughout present-day Europe. Detailed understanding of these rocks has, however, been obfuscated by significant overprinting during younger geologic ...
Mélissa Ruiz, Urs Schaltegger, Sean P. Gaynor, Massimo Chiaradia, Jürgen Abrecht, Christian Gisler, Federico Giovanoli, Michael Wiederkehr   +7 more
doaj   +1 more source

Timing of the magmatism of the paleo-Pacific border of Gondwana: U-Pb geochronology of Late Paleozoic to Early Mesozoic igneous rocks of the north Chilean Andes between 20° and 31°S [PDF]

, 2014
Indexación: Web of Science; ScieloABSTRACT. U-Pb zircon geochronological data provide record of about 130 Ma of igneous activity in the Andes of northern Chile, which extended episodically from the latest Early Carboniferous to Early Jurassic (328-194 Ma)
Maksaev, Víctor, Munizaga, Francisco, Tassinari, Colombo   +2 more
core   +1 more source

Global hydrogen reservoirs in basement and basins [PDF]

, 2017
The authors are grateful to the Science and Technology Facilities Council (STFC) for funding, through Grant NE/G00322X/1. Samples were kindly contributed by K. Condie, M.J. Hole, and D. Muirhead.
Blamey, Nigel, Parnell, John
core   +1 more source