Results 51 to 60 of about 166,331 (170)

Petrography and geothermobarometry of quartz diorite from Pohorje Mountains, Slovenia

Geologija
The mineral composition and pressure–temperature conditions of Pohorje quartz diorite were investigated to reconstruct crystallization sequence and integrate the results with previous data on the Pohorje igneous complex, providing insights into its ...
Tim Sotelšek, Simona Jarc, Andreja Pajnkiher, Mirijam Vrabec   +3 more
doaj   +1 more source

Petrography and geochemical study of Nezam-Abad area, Southwest of Shazand, Arak

Journal of Economic Geology, 2010
Nezam-Abad area is located in southwest of Shazand (Arak) which is a part of Sanandaj-Sirjan zone. Major intrusive rocks of Nezam-Abad are quartz diorite and minor amount of granodiorite.
Robabeh Jafari, Moussa Noghreyan, Mohammad Ali Mackizadeh, Javad Ghanei Ardekanei   +3 more
doaj   +1 more source

Tracing Orogenic Evolution From Multi‐Detrital Mineral Records: U‐Pb Geochronology and Trace‐Element Constraints From Glacial Diamictites

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract Integrating multiple detrital mineral systems provides a powerful framework for reconstructing source‐region tectonothermal evolution because different minerals record complementary aspects of magmatic and metamorphic processes. Glacial diamictites are particularly valuable for this approach because extensive glacial erosion can sample broad ...
Lijun Wang, Shoufa Lin, Wenjiao Xiao, Cees R. van Staal, Chris R. M. McFarlane, Zhijun Niu, Fang Song, Qihang Wu   +7 more
wiley   +1 more source

Geochemistry of the Rio Espinharas hybrid complex, northeastern Brazil

, 2002
The Rio Espinharas pluton, northeastern Brazil, belongs to the shoshonitic series and consists mainly of syenogranite, quartz-monzonite and porphyritic quartz-monzonite, but diorite, quartz-monzodiorite, quartz-syenite and microsyenogranite also occur ...
Neiva, A. M. R., Campos, T. F. C., Nardi, L. V. S.   +2 more
core   +1 more source

Subduction Recycling and Closure of the Paleo‐Asian Ocean in the Beishan Orogen: Constraints From the Niujuanzi Ophiolitic Mélange and Associated Intrusions

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract Ophiolitic mélanges and associated intrusions provide key archives for reconstructing the evolution of ancient ocean basins and subduction‐related mantle modification. The Hongliuhe–Niujuanzi–Xichangjing ophiolitic mélange in the central Beishan Orogen preserves important records of the Paleo‐Asian Ocean, but the timing of oceanic subduction ...
Yujia Song, Xijun Liu, Yao Xiao, Honghu Zeng, Pengde Liu   +4 more
wiley   +1 more source

Geochronology, geochemistry and Hf isotope of the quartz monzonite and the diorite in Dachaigou, the East Kunlun Orogenic Belt, China, and their geological significance [PDF]

This study focuses on quartz monzonite and diorite plutons in Dachaigou, East Kunlun, examining their formation, age, petrogenesis, magmatic source and tectonic setting. Through comprehensive field observations, zircon geochronology, geochemistry, and Hf
Li, Zhihua, Li, Chengxue, Li, Peng, Shi, Yufan, Li, Bile, Sun, Yaming   +5 more
core   +1 more source

Se(IV) uptake by Äspö diorite: Micro-scale distribution [PDF]

, 2014
Risk assessment of deep geological repositories (DGR) for high level radioactive waste demands radionuclide (RN) sorption data, with minimised uncertainties, on repository barriers.
PATELLI, ALESSANDRO, Alonso, Ursula, Garcia Gutierrez, Miguel, CECCATO, DANIELE, Missana, Tiziana, Rigato, Valentino, Garc??a-Guti??rrez, Miguel, García-Gutiérrez, Miguel   +7 more
core   +1 more source

Systematization of u-pb zircon ages of granitoids from the copper porphyry deposits on the urals

Литосфера, 2017
There is a generalization of U-Pb age of zircons from the copper-porphyry deposits of the eastern slope of the Urals. Approved reserves of the largest ones are about 1.4-1.8 Mt of Cu (at an average content of 0.4-0.6 wt % of Cu).
Anatolii I. Grabezhev, Galina Yu. Shardakova, Yurii L. Ronkin, Oksana B. Azovskova   +3 more
doaj   +2 more sources

MAFIC INCLUSIONS (SOBSKY COMPLEX, POLAR URAL): U‐Pb (SIMS) DATA

Геодинамика и тектонофизика, 2019
The rocks of the Sobsky complex, composing the bulk of the Sobsky batholith in the Polar Urals, contain mafic inclusions. The geological, petrographic and petro‐geochemical data show that the mafic inclusions of the Sobsky rocks belong to igneous ...
О. V. Udoratina, М. A. Coble, A. S. Shuyskiy, V. A. Kapitanova   +3 more
doaj   +1 more source

The Wilson Cycle of the North Altyn Ocean: A Record of Subduction Initiation, Slab Rollback, and Final Closure

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract The North Altyn ophiolitic belt was formed by the subduction–closure of the Altyn segment of the Proto–Tethys Ocean and recorded the accretion of Tarim to northern Gondwana, but the timing of initial subduction and detailed tectonic transition processes remain poorly constrained. This study reports the oldest Phanerozoic magmatic record of 537 
Long Chen, Jinlong Yao, Guochun Zhao, Yigui Han, Qian Liu, Donghai Zhang, Xijun Zhao, Hang Yang, Wei Li   +8 more
wiley   +1 more source