Results 71 to 80 of about 6,255 (170)

Role of Post‐Collisional Magmatism in Continental Growth and Reworking Since the Late Archean

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract The mechanisms responsible for the formation and compositional evolution of continental crust remain central questions in Earth science. Post‐collisional magmatism is widely preserved in the continental record; however, its contribution to crustal growth may be underestimated because enriched isotopic signatures obscure juvenile mantle input ...
Dongjian Ouyang, Ross N. Mitchell, Peng Peng, Jinghui Guo, Qiuli Li   +4 more
wiley   +1 more source

Petrogenesis and Tectonic Implication of the Hongtaiping High-Mg Diorite in the Wangqing Area, NE China: Constraints from Geochronology, Geochemistry and Hf Isotopes

, 2022
This study presents new data from zircon U–Pb dating and Hf isotope analysis, as well as whole-rock major- and trace-element compositions of the Hongtaiping high-Mg diorite in the Wangqing area of Yanbian, NE China.
Yujie Hao, Yunsheng Ren, Siyu Lu, Xuan Zhao, Qun Yang   +4 more
core   +1 more source

The origin and tectonic implications of the ca. 406 Ma magmatic activity in the western Yangtze Block, South China

Solid Earth Sciences
In this study, we report for the first time a new gabbro diorite, forming in an intraplate extensional environment during the Early Devonian, in the Shimian of the western margin of the Yangtze Block.
Chun-Mei Liu, Hao Zou, Hai-Feng Chen, Chen-Wei Li, Nuru Said, Chang-Cheng Huang, Xing-Xing Mao, Hui-Dong Yu, Hua-Wen Cao, Xin-Yu Liu   +9 more
doaj   +1 more source

Mineralogy, mineral chemistry and thermobarometry of post-mineralization dykes of the Sungun Cu–Mo porphyry deposit (Northwest Iran)

Open Geosciences, 2020
The Sungun copper–molybdenum porphyry deposit is located in the north of Varzaghan, northwestern Iran. The Sungun quartz-monzonite is the oldest mineralized intrusive body in the region and was emplaced during the Early Miocene.
Kamali Amin Allah, Moayyed Mohsen, Amel Nasir, Mohammad Fadaeian, Brenna Marco, Saumur Benoit M., Santos José Francisco   +6 more
doaj   +1 more source

The gabbro-diorite magmatism from the Narm area, western Kuh-e-Sarhangi (Central Iran): Evolution from Eocene magmatic flare up to Miocene asthenosphere upwelling

, 2022
Geodynamically, the Kashmar-Kerman Tectonic Zone (KKTZ) is one of the most perplexing tectonomagmatic belts of the Central Iran Microcontinent (CIM), comprising two important districts, Bafq and Kuh-e-Sarhangi.
Amir Morteza Azimzadeh, Azadeh Malekzadeh Shafaroudi, Shafaroudi, Azadeh Malekzadeh,, Mohammad Hasan Karimpour, Klötzli, Urs,, Slama, Jiri,, Mahboobeh Parvaresh Darbandi, Urs Klötzli, Darbandi, Mahboobeh Parvaresh,, Azimzadeh, Amir Morteza,, Jiri Slama, Karimpour, Mohammad Hasan,   +11 more
core   +1 more source

The Effects of Disequilibrium and Deformation on the Mineralogical Evolution of Quartz Diorite During Metamorphism in the Eclogite Facies [PDF]

, 2017
In the Sesia Zone, Western Alps, a large volume of orthogneiss formed as a result of eclogite fades metamorphism and deformation of quartz diorite during early Alpine underthrusting and subduction.
KOONS, P. O., FRUCH-GREEN, G., RUBIE, D. C.   +2 more
core  

Nonlinear Energy Evolution Characteristics of Diorite Examined by Triaxial Loading–Unloading and Acoustic Emission Tests

, 2022
Acoustic emission (AE) is often accompanied by the propagation of internal microcracks in loaded rock samples, and it essentially reflects microinstability phenomena driven by energy redistribution under stress. In this paper, loading and unloading tests
Anlong Liu, Xuexu An, Yonghui Zhang, Zhang, Liang, Liu, Anlong, An, Xuexu, Li, Fangtao, Liang Zhang, Hu, Zhiping, Fangtao Li, Zhang, Yonghui, Zhiping Hu   +11 more
core   +1 more source

Petrogenesis of the Early Cretaceous Tietonggou Diorite and Its Geological Implications

The Tietonggou pluton is mainly composed of gabbroic diorite and diorite. The petrology, zircon U-Pb age, and geochemistry of the Tietonggou diorite have been studied to determine its petrogenesis and metallogenic significance.
Guo Ye, Yanchao Han, Guangzhou Mao, Ying Shen, Huiji Zhao, Qinglin Xu, Zhengjiang Ding   +6 more
core   +1 more source

Data for: Polymetallic droplets within trapped globules in a quartz diorite porphyry from Gangcha-Kemo gold deposit, West Qinling orogen, China: implications for petrogenesis and prospecting

, 2019
The data uploaded include major and trace element compositions of polymetallic globules and host diorite porphyries from Gangcha-Kemo gold deposits.
Shen, Junfeng, Shen, J (via Mendeley Data)   +1 more
core   +2 more sources

Petrogenesis of late Ordovician high Ba–Sr quartz diorite in the northern Qinling orogeny and its geological implications

Frontiers in Earth Science
Late Ordovician to early Silurian medium-acidic magmatic rocks with high Ba–Sr characteristics are well-exposed in the northern Qinling orogeny and are ideal objects for discussing the regional evolution of magmatism and constraint tectonics.
Biao Du, Biao Du, Duanchang Zhao, Duanchang Zhao, Yafeng Zhang, Yafeng Zhang, Zhenkai Zhang, Xing Wang, Xing Wang, Wujie Li, Wujie Li, Zilong Wang, Zilong Wang   +12 more
doaj   +1 more source