A5061134230- Geological and Geochemical Analysis
- earthquake and tectonic studies
- High-pressure geophysics and materials
- Geochemistry and Geologic Mapping
- Geochemistry and Elemental Analysis
- Geological and Geophysical Studies
- Hydrocarbon exploration and reservoir analysis
- Radioactive element chemistry and processing
- Clay minerals and soil interactions
- Seismic Imaging and Inversion Techniques
- Geological Studies and Exploration
- Geological formations and processes
- Geochemistry and Geochronology of Asian Mineral Deposits
Nanjing University
2011-2024
The Tarim Craton, located in the center of Asia, was involved assembly and breakup Rodinia supercontinent during Neoproterozoic subduction-accretion Central Asian Orogenic Belt (CAOB) Paleozoic. However, its tectonic evolution these events is controversial, a link between Paleozoic processes missing. Here we present zircon U-Pb ages, Hf isotopes, whole-rock geochemical data for extensive granitoids western Kuruktag area, northeastern Craton. Three distinct periods granitoid magmatism are...
Abstract The widely exposed Kuluketage diabase dyke swarm, Tarim Block, NW China, has been considered to have emplaced in Permian times. New precise zircon U–Pb SHRIMP ages for two samples from the swarm yield Neoproterozoic of 823.8±8.7 Ma and 776.8±8.9 Ma. Correlated with peaks magmatism South China Australia at c. 825 780 Ma, these new provide significant information palaeocontinental reconstructions. prolonged duration magmatic events, combined regional stratigraphic relationships, imply...
The Jiajika pegmatite-type lithium deposit emplaced in Upper Triassic turbidites is located the southeastern Songpan-Ganze terrane of eastern Tibetan Plateau and largest hard-rock China. Scientific Drilling Project (JSD) consists JSD-1 borehole, which 3211 m deep, two 1000 boreholes, JSD-2 JSD-3. borehole composed upper pelitic metasediment unit (0-900m) lower are calc-silicate (900-3211 m). Pelitic metasediments at depth 0-400 experienced Barrovian-Buchan metamorphism, while 0-900 were...
Abstract The Beishan orogen, a significant component of the southern Altaids, presents an opportunity for investigating intracontinental deformation and exhumation history Altaids during Mesozoic era. Although previous studies indicated that orogen has experienced multiple reactivation since late Mesozoic, precise extent these events remains poorly constrained. Here, we provide comprehensive synthesis field observations apatite fission track (AFT) thermochronological dating throughout...
Abstract: The Aksu Proterozoic blueschist terrane in northwestern China is regarded as one of the oldest well-substantiated Precambrian terranes world. Previous work has focused on high-pressure metamorphism: both age and P – T conditions metamorphic event have been well discussed. However, little attention paid to protolith identification terrane. In this paper, we present geochemical Sr–Nd analyses metabasalt samples from results show that protoliths these mafic schists were enriched...
The Chinese Eastern Tianshan is an important metallogenic region where major Cu-Ni ores are mined. Previous research in the primarily focused on ore genesis. Precise thermochronological data to constrain exhumation history and preservation of deposits limited at best. Tianyu one these area. Here we present new low-temperature contribute understanding its history. Zircon (U-Th)/He ages ∼ 134–69 Ma, apatite fission track 100–75 117–38 Ma from five granodiorite samples wall rock different...
The Songpan-Ganze orogenic belt is a large-scale rare metal metallogenic in western China. Several granitic pegmatite-type lithium deposits are located the belt, which include Jiajika Li deposit, one of largest geochronological constraints pegmatites and granite still inadequate for revealing relationships between mineralization tectonothermal events. In this study, we performed columbite-group minerals (CGM) cassiterite U–Pb dating on seven different pegmatite veins with occurrences...
The Jiajika deposit in western Sichuan is the largest pegmatite-type lithium China, but mechanism of rare metal element enrichment this giant remains a topic debate. This study presents comprehensive Fe isotope granites, aplites, pegmatites, metamorphic rocks, and associated mineral separates from 3211 m long deep scientific drilling core (JSD-1) to constrain magmatic-hydrothermal processes deposit. Aplites pegmatites have variable δ56Fe values that range –0.12 ± 0.02 ‰ 0.38 ‰, by contrast,...
The structural styles of the East China Sea Shelf Basin are described based on interpretation seismic profiles. basin is divided into West and Rift regions. It has undergone four phases compressive inversions during late Palaeocene Oujiang Event, Eocene Yuquan early Miocene Huagang latest Longjing Event. Structural have superimposed Cenozoic extensional rift these compression events, forming regional unconformity reflectors (T4°, T3°, T2°, T1°). Changjiang Depression located in north Region...
Tarim Precambrian bedrocks are well exposed in the Kuluketage and Aksu areas, where twenty four samples were taken to reveal denudation history of northern Craton. Apatite fission track dating thermal modeling suggest that experienced multi-stage cooling events which assumed be associated with distant effects Cimmerian orogeny India-Eurasia collision past. But first episode exhumation Tarim, occurring mid-Permian Triassic, is here suggested induced by docking Craton final amalgamation...