Results 61 to 70 of about 1,688 (186)

Pressurization of Shallow Magma Reservoir Preceding Basaltic Eruptions at an Open‐Vent Volcano

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.
Abstract Open‐vent volcanoes are characterized by the persistent activity of outgassing, lava effusion and mild explosions, which is, however, occasionally interrupted by more violent explosive activity (paroxysm), for example, Stromboli (Italy). In spite of the different (two orders of magnitude) explosive intensities and different petrological magma ...
A. Ishikawa, T. Nishimura, G. Lacanna, H. Aoyama, R. Kawaguchi, E. Fujita, T. Yamada, T. Miwa, M. Ripepe   +8 more
wiley   +1 more source

Early cretaceous molybdenum-bearing felsic magmatic rocks in the tongmushan district, northern great Xing’an range: implications for mesozoic porphyry metallogenesis

Frontiers in Earth Science
The Nenjiang-Heihe metallogenic belt of the northern Great Xing’an Range is renowned for Mesozoic epithermal Au deposits, however, apart from the Duobaoshan and Tongshan super-large porphyry deposits in the Paleozoic, no superlarge porphyry copper ...
Wang Zhuo, Li Xu-Dong, Wang Jin, Li Cheng-Lu, Wang Zhao-Lin, Wang Zhao-Lin, Yin Yuqing, Yuan Mao-Wen, Lv Ming-Qi, Masroor Alam   +9 more
doaj   +1 more source

Early–Late Carboniferous Tectonic Evolution of the Northern North China Craton (NE China): Constraints From Zircon Ages, Geochemistry, and Crustal Thickness Modeling

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract The tectonic evolution of the northern margin of the North China Craton (NCC) remains controversial. In this study, we obtained zircon U–Pb ages, geochemical data, and Sr–Nd isotopic data for volcanic rocks, and detrital zircon ages for sedimentary rocks from the Yufutun, Tongqigou, and Benxi formations in central‐southern Jilin Province, NE ...
Yunfei Chang, Qingxiang Du, Huachun Gan, Xiaoli Shen, Zuozhen Han, Xiaoxue Hou, Huicong Zhang   +6 more
wiley   +1 more source

Crustal Thickness Inversion From Magmatic Geochemistry Reveals Spatiotemporal Evolution and Two‐Stage Uplift of the Iranian Plateau

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract The Cenozoic topographic growth of the Iranian Plateau, situated at the Arabia‐Eurasia collision front, provides insights into continental collision dynamics. However, the relative contributions of tectonic shortening versus deep mantle processes to crustal thickening remain debated because systematic quantitative constraints on paleo‐crustal ...
Jun Hu, Yongwei Zhao, Zhengquan Chen, Ni Li, Huan Kang   +4 more
wiley   +1 more source

Distinct Transcrustal Evolutions of Komatiitic Primitive Magma: Implications for the Compositional Dichotomy of Continental Flood Basalts

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract The origin of the compositional dichotomy between high‐Ti and low‐Ti basalts in continental flood basalt provinces remains debated. Most existing studies attribute this dichotomy directly to variations in primitive magma composition to circumvent the complexities of significant evolutionary processes, such as multiphase fractional ...
Zongpeng Yang, Tong Hou, Roman Botcharnikov, Evangelos Moulas, Meng Wang, Stephan Buhre, Zhaochong Zhang   +6 more
wiley   +1 more source

İSPENDERE (MALATYA) YÖRESİ, SÜLFİT MİNERALLEŞMELERİNİN JEOLOJİSİ, MİNERALOJİSİ VE JEOKİMYASİ

Bulletin of the Mineral Research and Exploration, 1999
Bu çalışmada, Kızmehmet mahallesi (İspendere-Malatya), bakır-pirit cevherleşmesi ve yakın çevresinin jeolojisi, mineralojisi, petrografisi, jeokimyası, yan kayaç alterasyonu, cevher yan kayaç ilişkileri ve cevherin mikro yapı-doku ilişkileri incelenmiş ...
Halide DUMANLILAR, Doğan AYDAL, Özcan DUMANLILAR   +2 more
doaj  

Oceanic anoxic events, subduction style and molybdenum mineralization

Solid Earth Sciences, 2016
Nearly half of the world's Mo resources are hosted in Cenozoic porphyries along the east Pacific margin. In contrast, there are essentially no large Mo porphyry deposits along the west Pacific.
Wei-dong Sun, Cong-ying Li, Xi-luo Hao, Ming-xing Ling, Trevor Ireland, Xing Ding, Wei-ming Fan   +6 more
doaj   +1 more source

Geology, alteration, mineralization and geochemistry at south of Arghash (Neyshabour)

Journal of Economic Geology, 2011
The Arghash area is located 45 km to southwest of Neyshabour. The subvolcanic rocks in the area consist of biotite hornblende quartz monzodiorite porphyry, hornblende biotite quartz monzodiorite porphyry, hornblende monzonite porphyry, biotite hornblende
Zahra Karimi Saeidabadi, Seyed Ahmad Mazaheri, Mohammad Hassan Karimpour   +2 more
doaj   +1 more source

Element Migration of Mineralization-Alteration Zones and Its Geological Implication in the Beiya Porphyry–Skarn Deposit, Northwestern Yunnan, China

Applied Sciences
Porphyry and the associated skarn-type deposit is one of the most important types of ore deposits worldwide, which usually exhibit significant zoning of mineralization-alteration, but the research on element migration in these mineralization-alteration ...
Fei Liu, Runsheng Han, Yuxinyue Guo, Mingzhi Wang, Wei Tan   +4 more
doaj   +1 more source

Determination of geospatial criteria and prediction of potential areas for porphyry copper deposits in Kazakhstan

Frontiers in Earth Science
Determining spatial parameters related to mineral deposits is crucial for analysing mineral prospectivity. These spatial parameters, called Geospatial Criteria (GC), can serve as input data for modelling mineral prospectivity.
Zahid Shah, Emil Bayramov, Emil Bayramov, Emil Bayramov, Jessica Neafie, Reimar Seltmann, Zohreh Rahnama   +6 more
doaj   +1 more source