Results 61 to 70 of about 6,255 (170)

Petrocosmea wentsaii sp. nov. (Gesneriaceae) from Guizhou, China

Nordic Journal of Botany, Volume 2026, Issue 10, October 2026.
Petrocosmea wentsaii M.Q. Han, Miao.M. Wang & Yan Liu, a new species from Guizhou, China, is described and illustrated. Petrocosmea wentsaii was found on damp walls in a huge limestone cave. It is most similar to Petrocosmea hexiensis S.Z. Zhang & Z.Y. Liu in the conformation of the corolla.
Miao‐Miao Wang, Xiao Wang, Meng‐Qi Han, Yan Liu   +3 more
wiley   +1 more source

Petrogenesis of Ore-Hosting Diorite in the Zaorendao Gold Deposit at the Tongren-Xiahe-Hezuo Polymetallic District, West Qinling, China

, 2019
The newly discovered Zaorendao gold deposit is in the Tongren-Xiahe-Hezuo polymetallic district in the westernmost West Qinling orogenic belt. The estimated pre-mining resource is approximately 13.6 t of Au at an average grade of 3.02 g/t. Mineralization
Jian-Zhen Geng, Hao-Cheng Yu, Kun-Feng Qiu, Ming-Hai Yu, Jun Li, Yong-Gang Wang, Ming-Qian Wu, Zong-Yang Gou   +7 more
core   +1 more source

Pre‐Eruptive Volatiles and Magma Storage Depth for the 2018 Eruption at Mount Veniaminof, Alaska

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract Mount Veniaminof is a frequently active, open‐system arc volcano on the Alaska Peninsula, part of the Alaska‐Aleutian arc. Mount Veniaminof's September–December 2018 eruption began with small lava flows and culminated in a larger explosive event in November that produced a 450 km long continuous ash plume—one of the volcano's most significant ...
E. G. Huggins, P. Ruprecht, M. Loewen, M. Gavrilenko, R. J. Bodnar, M. Harlaux   +5 more
wiley   +1 more source

Paleomagnetism of the Scourie Dykes, Lewisian Foreland, NW Scotland: Constraints on Early Paleoproterozoic Paleogeography of Kenorland

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 10, October 2026.
Abstract The Scourie dyke swarm in the Lewisian foreland of northwest Scotland provides key constraints on the Paleoproterozoic evolution of the North Atlantic craton. High‐precision U‐Pb geochronology identifies two distinct intrusive phases at ∼2.41–2.38 Ga and ∼2.00 Ga.
M. Mirzaei, V. A. Kravchinsky, F. Alizadeh, L. Heaman, A. Goguitchaichvili   +4 more
wiley   +1 more source

Age constraints on host rocks of Los Uvares gold deposit: Magmatic pulses in southernmost Baja California, Mexico [PDF]

Geofísica Internacional, 1999
Los Uvares disseminated gold epithermal deposit, in the central part of the Cabo San Lucas Block (CSLB) near the tip of Baja California peninsula, occurs in a cataclastically deformed tonalite intruded by alaskite and mildly faulted diorite dikes ...
M. Zentilli, H. Huyck, A. Carrillo-Chávez, A. Griest   +3 more
doaj  

Geological and geochemical characteristics and genesis of the Cishan gold deposit in Tongling ore cluster area, Anhui Province

Solid Earth Sciences, 2020
The Cishan gold deposit is a newly discovered medium-scale independent skarn gold deposit located in the Tongling ore cluster area of the Middle-Lower Yangtze Metallogenic Belt, and the ore-related intrusion is the Cishan pyroxene diorite. In this study,
Shasha Liu, Xiaoyong Yang, Linjie Chen, Yinan Li, Kai Zheng, Yu Hong   +5 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

Chronology and Geochemistry on Mesozoic Diorite from the Xi′anli Iron Ore Area in Pingshun, Shanxi Province

Yankuang ceshi, 2013
The Shanxi Pingshun region is located in the west limb of a large-scale anticline of Taighang Mountain and is to the southeast of the Taihang upwell of Lüliang-Taihang fault block.
WANG Yong, CHEN Zheng-le, CHEN Bai-lin, DONG Fa-xian, ZHANG Hai-dong, HAN Feng-bin, ZHOU Yong-gui   +6 more
doaj  

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

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