A5101650059- Geological and Geochemical Analysis
- High-pressure geophysics and materials
- earthquake and tectonic studies
- Geochemistry and Geologic Mapping
- Geology and Paleoclimatology Research
- E-commerce and Technology Innovations
- Geochemistry and Geochronology of Asian Mineral Deposits
- Mineralogy and Gemology Studies
- Geochemistry and Elemental Analysis
- Clay minerals and soil interactions
- Educational Technology and Pedagogy
- China's Ethnic Minorities and Relations
- Geological Studies and Exploration
- Educational Technology and Assessment
- Paleontology and Stratigraphy of Fossils
- Digital Transformation in Industry
- Engineering Education and Curriculum Development
- Superconductivity in MgB2 and Alloys
- Diaspora, migration, transnational identity
- Higher Education and Teaching Methods
- Phase Equilibria and Thermodynamics
- Soviet and Russian History
- Geological and Geophysical Studies
- Public-Private Partnership Projects
- Financial Distress and Bankruptcy Prediction
Peking University
2015-2025
Liaoning Technical University
2024
Shaanxi University of Science and Technology
2020-2021
Australian National University
2009-2010
University of Wollongong
2009
Henan University
2006
Primitive arc magmas in oceanic island arcs are probes of sub-arc magmatic processes and crucial for understanding subduction. We report data an Early Paleozoic volcanic complex the Lajishan–Yongjing terrane, South Qilian Accretionary Belt (SQAB), Orogen, including zircon U–Pb dating Hf–O isotopes, mineral whole-rock geochemistry, Sr–Nd isotope compositions. New ages ∼455–440 Ma constrain timing volcanism subduction Ocean. Based on petrography bulk-rock composition, five lithological types...
<title>Abstract</title> The Miocene Climatic Optimum (ca. 17−14 Ma) is an enigmatic climatic reversal that interrupted the long-term cooling trending of Cenozoic. forcing for this warming event remains unclear. Here we present direct evidence melt−carbonate interactions in Himalaya produced globally significant CO2 emissions, and quantify resulting contributions to atmosphere. occurred at high temperatures (685−828°C) lower crust (1.2−1.4 GPa) during middle Miocene. Decoupled Sr−O isotope...
Abstract Eclogites in the high-pressure (HP) and ultrahigh-pressure (UHP) belts record subduction-zone processes; exhumed eclogites of seafloor protoliths low-temperature (mostly <600°C), ‘wet’ environments: that is, relatively ‘cold’ subduction with highly hydrous minerals such as lawsonite. In contrast, formed by continental ‘hot’ ( T > 650°C) ‘dry’ metamorphic (UHPM) conditions syncollisional magmatism. Here, we investigate some from two ophiolite sequences intercalated North Qaidam...
An early Paleozoic eclogite belt extends discontinuously for ∼500 km in the East Kunlun Orogen, northwestern China, which provides insight into evolution of Proto-Tethys Ocean. However, nature and age protoliths subsequent metamorphism are unclear. Here, we report mineral chemical, zircon, titanite geochronological; whole-rock major trace elemental; Sr-Nd isotopic data eclogites from Xiarihamu area western Orogen. At a minimum, these underwent peak eclogite-facies at 27−28 kbar 630−650 °C,...
Ultrahigh-temperature (UHT) metamorphism is the most thermally extreme form of regional crustal metamorphism, with temperatures exceeding 900°C. The duration and heat source UHT are critical constraints on tectonic evolution orogenic systems. Here, we report discovery a sapphirine-bearing granulite from east-central Himalaya which preserves evidence. reconstructed pressure-temperature-time path indicates that temperature increased by almost 200°C within ~2 Ma consistent rapid asthenospheric...
Abstract Eclogites represent the highest pressure conditions yet observed from rocks thrust to surface in central Himalaya. A detailed investigation of protolith nature these eclogites is needed better understand pre-Himalayan geological history. Retrogressed were collected Thongmön (Dingri County) and Riwu (Dinggye County), Himalaya, China. We investigated bulk rock major trace elements, Sr-Nd isotopes, zircon geochronology, Hf-O isotopes. These retrogressed experienced five stages...
Abstract: Thus far, our understanding of the emplacement Xuebaoding granite and occurrence evolution Songpan‐Garzê Orogenic Belt has been complicated by differing age spectra results. Therefore, in this study, 40 Ar/ 39 Ar sensitive high resolution ion micro‐probe (SHRIMP) U‐Pb dating methods were both used results compared, particularly with respect to data for Pankou Pukouling granites from Xuebaoding, establish ages that are close real emplacements. The SHRIMP zircon showed a amount U,...
Abstract Sitting between the Greater Himalayan sequence (GHS) and Lesser (LHS), Main Central Thrust zone (MCTZ) has experienced multiple episodes of anatexis, which presents an opportunity to explore nature partial melting its response orogenic processes. A series deformed rocks, including migmatites, gneisses, leucosomes were collected across MCT at Arun Valley, eastern Nepal. We investigated bulk rock major trace elements, Sr-Nd isotopes, mineral chemistry, zircon geochronology Hf...