Ya-Fei Wu

Ya-Fei Wu
China University of Geosciences · School of Earth Resources

PhD

About

11
Publications
3,339
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253
Citations
Citations since 2017
11 Research Items
253 Citations
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2017201820192020202120222023020406080
Introduction
My research focuses on ore-forming processes of, and exploration for, metasediment-hosted orogenic gold and deep-sea sulfide deposits, using a combination of chemical and isotopic techniques including LA-(MC)-ICP-MS, SIMS, NanoSIMS, SHRIMP, SXRF, and APT (atom probe tomography).

Publications

Publications (11)
Article
The Daqiao gold deposit is hosted in organic-rich Triassic pumpellyite-actinolite facies metamorphosed turbidites in the West Qinling orogen, central China. Gold mineralization is characterized by high-grade hydraulic breccias (B and C ores) that overprint an earlier tectonic breccia (A ore). A complex paragenesis is defined by four sulfide stages:...
Article
Mineral-scale episodic replacement of auriferous pyrite by texturally-complex pyrite, marcasite and minor arsenopyrite occurred in breccia ores from the Daqiao epizonal orogenic gold deposit, West Qinling Orogen, China. This study uses a novel combination of laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS), Nanoscale secondar...
Article
Chemical zoning in minerals records fluid-rock interaction and crystal growth kinetics via texturally complex features, the genesis of which remains a subject of debate. Here, we combined nanoscale secondary ion mass spectrometry (NanoSIMS) and atom probe tomography to better characterize trace-element zoning in a gold (Au)–rich pyrite crystal from...
Article
Carbonaceous matter (CM) plays a critical role in the formation of sediment-hosted ore deposits, but metal partitioning between CM and associated sulfides remains unclear. Here we use synchrotron X-ray fluorescence microscopy (SXRF), laser ablation–inductively coupled plasma–mass spectrometry (LA–ICP–MS), and nanoscale secondary ion mass spectromet...
Article
Gold (Au) is largely hosted by pyrite in a variety of hydrothermal systems, but the incorporation of Au into pyrite under disequilibrium conditions remains poorly understood. We integrate synchrotron X-ray fluorescence microscopy, electron backscatter diffraction, nanoscale secondary ion mass spectrometry, and laser ablation–multicollector–inductiv...
Article
Full-text available
Significance There is a common consensus that lode gold deposits mostly precipitated from metamorphic fluids via fluid boiling and/or fluid–rock interaction, but whether magmatic hydrothermal fluids and the mixing of such fluids with an external component have played a vital role in the formation of lode gold deposits remains elusive. We use garnet...
Article
The North China craton was stabilized in the late Paleoproterozoic but experienced significant removal of ancient lithospheric keel in the late Mesozoic that resulted in the formation of numerous world-class gold deposits with combined reserves of more than 7000 t of gold. However, it remains uncertain whether the North China craton contains older...
Article
The Dayingezhuang Au deposit in the Jiaodong district, eastern margin of the North China Craton is hosted in Mesozoic granitic rocks and consists of quartz-sulfide veins/veinlets and sulfide disseminations in alteration envelopes. Previous studies mainly focused on the geochronology, sources of ore-forming fluids and metals to investigate the ore g...
Research
Summary about the Geology of Macau English: http://ise.usj.edu.mo/research/projects/geology-of-macau/ Portuguese: http://ise.usj.edu.mo/research/projects/geologia-de-macau/ Chinese: http://ise.usj.edu.mo/research/projects/澳門的地質/
Article
Full-text available
The West Qinling Orogen is endowed with more than 100 sediment-hosted gold deposits with an estimated resource of > 2000 t Au. Previous radiometric dating results have shown that most deposits formed during a Late Triassic to Early Jurassic period of contractional deformation over the orogen. However, here we show that the newly discovered Daqiao g...
Article
The West Qinling Orogen (WQO) in Central China Orogenic Belt contains numerous metasedimentary rock-hosted gold deposits (>2000 t Au), which mainly formed during two pulses: one previously recognized in the Late Triassic to Early Jurassic (T3eJ1) and one only recently identified in the Late Jurassic to Early Cretaceous (J3eK1). Few studies have foc...

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Projects

Projects (3)
Project
Carbonaceous material (CM) is widespread in metasediment-hosted gold deposits and commonly co-exists with trace metal-rich hydrothermal auriferous sulfides. However, the role of CM in gold deposition processes is controversial. In this project, we will map the distribution of Au and other trace metals in CM and co-located sulfides from mineralized and host rocks in the world-class Daqiao orogenic gold mine, China – a young, well preserved, proxy for some of Australia’s rich Victorian gold deposits. These results will provide new insights into the genesis of orogenic gold deposits, and strategies for the localization of gold sources, pathways and ore bodies.
Project
The project brings together researchers in Mainland China, Macao and Europe to investigate the role of ultramafic-hosted hydrothermal systems in the formation of massive sulphide deposits. The project provides an excellent opportunity to combine samples from ultramafic fields from MAR, collected by the European partners, and from SWIR, collected by the Chinese partners, to take a comparative and original approach to this question.