A5100462842- Geological and Geochemical Analysis
- Geochemistry and Geologic Mapping
- earthquake and tectonic studies
- High-pressure geophysics and materials
- Geochemistry and Elemental Analysis
- Paleontology and Stratigraphy of Fossils
- Mercury impact and mitigation studies
- Heavy metals in environment
- Clay minerals and soil interactions
- Crystal Structures and Properties
- Mineralogy and Gemology Studies
- Metal Extraction and Bioleaching
- Geology and Paleoclimatology Research
Bureau of Geology and Mineral Exploration and Development of Guizhou Province
2015-2024
Guizhou University
2021-2023
Ministry of Natural Resources
2019-2023
Chinese Academy of Sciences
2013-2021
Institute of Geochemistry
2013-2021
University of Chinese Academy of Sciences
2013-2014
Accurately determining the age of hydrothermal ore deposits is difficult, because lack suitable mineral chronometers and techniques. Here we present first LA-MC-ICPMS U-Pb carbonates from Sb deposits. Three stages giant South China metallogenic belt were identified: (1) pre-ore dolomite (Dol-I), (2) syn-ore calcite (Cal-II), (3) post-ore (Cal-III). The U Pb isotopic data show that Cal-II yielded a lower intercept 115.3 ± 1.5 Ma (MSWD = 2.0), suggesting mineralization corresponds to an...
Mantle-derived magmas provide windows to the deep earth, and precise dating of magmatic rocks such as kimberlite related lithologies is crucial attaining a better understanding mantle evolution mantle-crust interaction in conjunction with global geodynamic cycle. Here we report geochronology investigation diamondiferous from southeastern side Yangtze Craton China aim constrain magma emplacement patterns through time. Ultrabasic events occurred intermittently between 492 441 Ma, inferred...
The Neoproterozoic Tonian strata (ca. 870–725 Ma) in the western Jiangnan Orogen archive records of sedimentary provenance and tectonic setting which can be used to understand geological evolution South China Continent. These are separated into basement cover sequences by a regional angular unconformity. sequence subdivided lower upper parts widespread interbedded ca. 840 Ma basalt with pillow structure. In present work, 234 concordant detrital zircon analyses obtained from three sandstone...
The Sichuan–Yunnan–Guizhou metallogenic province (SYGMP) includes > 400 Zn − Pb deposits and prospects, eight of which are large-scale with large reserves critical metals such as Cd Ge, including the Huize Ge Daliangzi Zn–Pb–Ge–Cd deposits. newly discovered Zhugongtang deposit is a super-large Zn–Pb 3 Mt. Its geochemical features similar to those deposit, sulfide δ34S values concentrations elements in sphalerite (e.g., Ge). However, two have different host strata, it remains unclear whether...
The Laochang Ag-Pb-Zn-Cu deposit, located in the southern margin of Sanjiang Tethys Metallogenic Belt (STMB), is typical deposit this region. Its orebodies are hosted Carboniferous Yiliu Formation volcanic-sedimentary cycle and occur as stratiform, stratoid lenticular. Whether or not stratabound ore belong to volcanogenic massive sulfide (VMS) remains unclear controversial. In paper, whole rock geochemistry, trace elements sphalerite, U-Pb zircon chronology Pb isotopes were investigated,...
In southwest China, claystone layers occur in the lower part of late Permian Xuanwei Formation, immediately overlying Emeishan flood basalts. The lowermost are characterised by high contents rare earth elements (REEs; 1100–16,000 ppm, average 2700 ppm), indicating a new type REE deposit. However, origin this deposit and enrichment mechanisms unclear. We collected samples from 10 sections including REE-rich claystones, siltstones, iron tuff. Detrital zircons gave U–Pb ages 275–245 Ma, εHf(t)...
We report new analytical data regarding major and trace element geochemistry, Sr-Nd isotopic composition, zircon LA-ICP-MS U-Pb analysis from the Kaiyuan alkaline basalts of Yunnan Province, along southern margin Emeishan Large Igneous Province (ELIP). Zircon ages bulk-rock geochemistry indicate that mafic lavas erupted at 248 ± 6 Ma with OIB-like isotope ratios similar to high-Ti basalts. These characters suggest are products post-ELIP magmatism, involving remelting plume head after main...
The Late Devonian Frasnian–Famennian (F–F) mass extinction has been long-time debated by non-volcanic causes, extra-terrestrial impacts, and large igneous province (LIP) eruptions. To better understand the ultimate cause of F–F extinction, here we investigate chemostratigraphy mercury (Hg) total organic carbon (TOC) on two marine strata in Dushan area, South China. In both sections, high Hg Hg/TOC anomalies were observed near boundary. These are line with those recently Morocco, Germany,...
The Yiliu tungsten polymetallic deposit, located in the south central portion of Nanling nonferrous metal metallogenic province South China, is an area with common Yanshanian tectonothermal events. Early magmatism leads to emplacement voluminous tungsten-bearing granite intrusions, such as Baoshan, Benggangling and Junye plutons, which are considered temporally spatially associated W-polymetallic mineralization region. Here, we investigate basic geological petrological characteristics...