Results 51 to 60 of about 2,316 (218)

Two periods of mineralization in Xiaoxinancha Au-Cu deposit, NE China: evidences from the geology and geochronology

, 2016
The Xiaoxinancha Au-Cu deposit is located at the eastern segment of the Tianshan-Xingmeng orogenic belt in northeast China. The deposit includes porphyry Au-Cu orebodies, veined Au-Cu orebodies and veined Mo mineralizations.
Zeng, Qingdong, Zeng, Q., Duan, Xiaoxia, Zhou, Lingli, Duan, X., Zhou, L., Guo, Feng, Guo, F.   +7 more
core   +1 more source

Geochemistry and Geochronology of Magmatic Rocks in Southwestern and Northeastern Cambodia: Implications for the Tectonic Evolution and Metallogenesis of the Loei Fold Belt

Geological Journal, EarlyView.
The composition of intrusive rocks suggests that the magma was likely generated in a subduction‐related setting. The arc crustal thickness in the Phnom Sro Ngam and Halo Prospects was probably < 40 km during emplacement. Zircon U–Pb age range indicates a correlation with Loei Fold Belt magmatic activity.
Sirisokha Seang, Khin Zaw, Kakda Kret, Ivan Belousov, Kotaro Yonezu, Koichiro Watanabe, Charles Makoundi   +6 more
wiley   +1 more source

A Machine Learning Zircon Trace Element Tool to Predict Porphyry Deposit Type and Resource Size

Journal of Geophysical Research: Machine Learning and Computation
Porphyry deposits are primarily known for their association with base metals like copper and to some extent molybdenum and gold. Here we present machine learning models, based on zircon composition, that provide quantitative distinction between different
Zi‐Hao Wen, Bo Xu, Christopher L. Kirkland, David R. Lentz, Zeng‐Qian Hou, Tao Wang, Mao‐Wen Yuan   +6 more
doaj   +1 more source

Geochemical Characteristics and Their Geological Significance of Zircon and Apatite From the Wunugetushan Porphyry Cu–Mo Deposit, Inner Mongolia, NE China

Acta Geologica Sinica - English Edition, EarlyView.
The key factors making the monzogranitic porphyry fertile for mineralization, including its high Cl, S, and H2O contents, high oxidation state, significant fluid exsolution, and multiple recharges of deep‐seated mafic magma, were all critical for the formation of the Wunugetushan porphyry Cu‐Mo deposit. ABSTRACT The Wunugetushan (Wushan) porphyry Cu–Mo
Genyuan JI, Sihong Jiang, Yang Cheng, Hongyan Bao, Huachuan Zhang   +4 more
wiley   +1 more source

The Occurrence and Morphology of Naturally Occurring Respirable Mordenite Mineral Fibres in New Zealand

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
Mordenite is a naturally occurring zeolite mineral that is the seventh most common zeolite mineral globally, forming at low temperatures (≥100°C) in hydrothermal systems. In New Zealand, extensive deposits of mordenite are commonly associated with areas of hydrothermal alteration, particularly in the Coromandel and Taupo Volcanic Zones.
Ayrton R. Hamilton, Martin S. Brook, Anushka Elangasinghe, Debra Chappell, Janki P. Patel, Satendra Kumar, Rod Martin   +6 more
wiley   +1 more source

Table 2. Zircon Hf-O data of the porphyries from the Duolong porphyry Cu-Au deposit in the Bangongco copper belt, central Tibet

, 2013
The Duolong porphyry Cu-Au deposit (5.4Mt at 0.72% Cu, 41t at 0.23g/t Au), which is related to the granodiorite porphyry and the quartz-diorite porphyry from the Bangongco copper belt in central Tibet, formed in a continental arc setting.
Qin, Ke-Zhang, Qin, K., Jun-Xing Zhao (333128), Zhao, Jun-Xing, Chen, Lei, Cao, Mingjian, Jinxiang Li (7992686), Mingjian Cao (7992689), Xiao, Bo, Guang-Ming Li (1694866), Bo Xiao (347938), Xiao, B., Li, G., Li, Jinxiang, Chen, L., Li, J., Zhao, J., Lei Chen (54296), Li, Guang-Ming, Ke-Zhang Qin (2883977)   +19 more
core   +1 more source

Geochemical Characteristics of the Granodiorite Porphyry in Dongxiang W-Cu Deposit, SE China

, 2023
The Dongxiang tungsten–copper deposit is a large W–Cu deposit located in the northeast of Jiangxi province in south China. Previous studies have mainly considered the geochemical and isotopic attributes of the ore deposit, but information is ...
Pei Ni, Yitao Cai, Guoguang Wang, Hui Chen   +3 more
core   +1 more source

The United States Magnetotelluric Array and the National Impedance Map

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract The United States Magnetotelluric Array (USMTArray) data set, collected in the years 2006–2024, consists of more than 1,700 long‐period magnetotelluric stations covering the entirety of the contiguous United States on a quasi‐regular 70 km grid.
Anna Kelbert, Paul A. Bedrosian, Adam Schultz, Gary D. Egbert, Louise Pellerin, Jeffrey J. Love, Andrew Frassetto, Benjamin S. Murphy   +7 more
wiley   +1 more source

Zircon U-Pb and Hf-O analysis of porphyries from the Duolong porphyry Cu-Au deposit in the Bangongco copper belt, central Tibet

, 2013
The Duolong porphyry Cu-Au deposit (5.4 Mt at 0.72% Cu, 41 t at 0.23 g/t Au), which is related to the granodiorite porphyry and the quartz-diorite porphyry from the Bangongco copper belt in central Tibet, formed in a continental arc setting.
Qin, Ke-Zhang, Jun-Xing Zhao (333128), Zhao, Jun-Xing, Chen, Lei, Cao, Mingjian, Jinxiang Li (7992686), Mingjian Cao (7992689), Xiao, Bo, Guang-Ming Li (1694866), Bo Xiao (347938), Li, Jinxiang, Lei Chen (54296), Li, Guang-Ming, Ke-Zhang Qin (2883977)   +13 more
core   +1 more source

Middle Cretaceous Andean‐Type Arc Evolution in the Sanandaj–Sirjan Zone (Shalair Valley), Iraq: New Geochronological and Geochemical Constraints

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract The middle Cretaceous granitoid plutons of the Shalair Valley, situated in northeastern Iraq, constitute a principal magmatic component of the Sanandaj–Sirjan Zone within the northwestern segment of the Zagros Orogenic Belt. Among these plutons, the equigranular Aulan body (AG) and the porphyritic Laladar body (LG) were crystallized at 111.0 ± 
Imad Kadhim Abdulzahra, Yoshihiro Asahara, Yousif Mohammad, Ayten Hadi   +3 more
wiley   +1 more source