A5101941241- Geological and Geochemical Analysis
- Geochemistry and Geologic Mapping
- earthquake and tectonic studies
- High-pressure geophysics and materials
- Geological and Geophysical Studies
- Paleontology and Stratigraphy of Fossils
- Geochemistry and Elemental Analysis
- Geochemistry and Geochronology of Asian Mineral Deposits
- Geological formations and processes
- Hydrocarbon exploration and reservoir analysis
- Radioactive element chemistry and processing
- Clay minerals and soil interactions
- Elasticity and Wave Propagation
- Nonlinear Waves and Solitons
- Marine and environmental studies
- Geological Modeling and Analysis
- Coastal and Marine Management
- Geology and Paleoclimatology Research
- Groundwater flow and contamination studies
- Porphyrin and Phthalocyanine Chemistry
- Geoscience and Mining Technology
- Mesoporous Materials and Catalysis
- Environmental Changes in China
- Geomechanics and Mining Engineering
- Food Industry and Aquatic Biology
Guizhou University
2011-2025
China University of Geosciences (Beijing)
2014-2024
Shandong Geological Sciences Institute
2023
Ministry of Natural Resources
2021-2023
Chongqing Institute of Geology and Mineral Resources
2023
University of Chinese Academy of Sciences
2023
Xi'an Jiaotong University
2023
Second Affiliated Hospital of Xi'an Jiaotong University
2023
Chalmers University of Technology
2023
State Key Laboratory of Geological Processes and Mineral Resources
2022
Research Article| July 01, 2015 ENVIRONMENTAL CONTROLS ON THE GENESIS OF MARINE MICROBIALITES AND DISSOLUTION SURFACE ASSOCIATED WITH END-PERMIAN MASS EXTINCTION: NEW SECTIONS OBSERVATIONS FROM NANPANJIANG BASIN, SOUTH CHINA DANIEL J. LEHRMANN; LEHRMANN 1Geoscience Department, Trinity University, San Antonio, Texas 78212, USA e-mail: dlehrmann@trinity.edu Search for other works by this author on: GSW Google Scholar JOHN M. BENTZ; BENTZ TANNER WOOD; WOOD ALEXA GOERS; GOERS RYAN DHILLON;...
To assess the potential of tourmaline as an indicator for pegmatite evolution and exploration, we measured compared geochemical compositions in tourmalines barren, Be-rich Li-rich pegmatites from Chakabeishan (CKBS) deposit, eastern North Qaidam Tectonic Belt, northeastern Tibetan Plateau. Two types barren are identified: optically homogeneous fine-grain (H-Tur) zoned coarse-grain (OZ-Tur). Both H-Tur OZ-Tur magmatic origin, showing high Na/(Na + Ca) (0.961–0.990), YAl (0.389–0.757 apfu) low...
Triassic strata of the Yangtze Platform at Guanling contain a dolomitized interior, undolomitized margin, and partially slope to basin margin. Dolomitized microbial laminate caps peritidal cycles massive dolomite with associated evaporite nodules solution collapse breccias are consistent penecontemporaneous tidal flat evaporative dolomitization in platform interior. The preferential margin (up 7 km basinward margin), along fractures, selective matrix breccia that diminishes toward...
Lower Triassic platforms in the Nanpanjiang Basin contain extensive oolites. Interior oolites are stacked meter-scale cycles arranged into larger coarsening-upward sequences. Oolites thicken toward margins to include grainstones up 50 m (164 ft) thick and giant ooids (up 1 cm [0.4 in.]) composite coated grains. Cross-bedding, ripples, abraded indicate deposition high-energy shoals. Apparent layer-cake correlation across interiors indicates amalgamation of Thinner interior lenses represent...
Abstract The Nanpanjiang Basin occurs in a key position for resolving controversies of basin tectonics and patterns plate assembly at the junction between south China Southeast Asian plates. Paleocurrent measurements indicate that siliciclastic turbidites were sourced by Precambrian Jiangnan uplift to northeast, Yunkai southeast Triassic Songma suture south. Detrital zircon geochronology reveals Archean (2500 Ma), Paleoproterozoic (1800–1900 Neoproterozoic (900–1000 Ma) Paleozoic (420–460...
The Chakabeishan (CKBS) deposit is a newly discovered pegmatite-type lithium-beryllium in the northern Qaidam tectonic belt of Tibet Plateau. In recent years, some studies have discussed genesis deposit, but topic remains unclear. This study constrains CKBS based on detailed field observations and mineralogical studies, presents fluid inclusion data Li isotopic compositions Li-rich pegmatites Li-poor pegmatites. mineralization characteristics shows trend from weak Be to south north...
The East Kunlun Orogenic Belt (EKOB) provides an important link to reconstruct the evolution of Proto-Tethys and Paleo-Tethys realm. EKOB is marked by widespread Early Paleozoic magmatism. Here we report petrology, bulk geochemistry, zircon U–Pb dating and, Lu–Hf Sr–Nd isotopic data granitic rocks in Zhiyu area southern EKOB. Based on dating, these granitoids, consisting diorite, granodiorite monzogranite, were formed during 450–430 Ma Late Ordovician Middle Silurian. diorite are high Sr/Y...
Our limited knowledge of Mesozoic tectonism in the Tibetan Plateau has hindered understanding its geologic evolution. This study uses zircon U-Pb geochronology to refine regional chronostratigraphy and infer Jurassic sedimentary-tectonic evolution Bangong suture south-central Qiangtang terrane central plateau. During late Early–early Middle Jurassic, fan delta alluvial deposits sourced from Amdo basement south occurred within zone, as a result collision between terrane. Since Bajocian...
The Chakabeishan (CKBS) deposit is the first pegmatite-type Li-Be discovered in eastern North Qaidam Tectonic Belt (NQTB) of Tibetan Plateau. correct understanding its petrogenesis and precise determination formation age are great significance for further regional prospecting discovery new economically valuable rare-metal deposits. Therefore, a systematic study texture, major-element composition, U-Pb dating columbite-tantalite group minerals (CGMs) spodumene pegmatite dyke from CKBS was...
Abstract Sector‐collapse structures ranging up to 27 km wide with 7.7 bankward erosion (scalloped margins) and linear escarpments occur along the east‐north‐east‐trending, south‐facing margins of Yangtze Platform Great Bank Guizhou. Exposure one on rotated limb a syncline displays geometry in profile view. Declivities range from 65° 90° upper wall decrease asymptotically toe. Catastrophic collapses both platforms occurred during late Ladinian as constrained by ages strata truncated...