Structural Controls on Mineralization within the Huanggou Gold Deposit in the Southern Mesozoic Xuefengshan Orogen, South China
نویسندگان
چکیده
The Mesozoic Xuefengshan Orogen (XFSO) in South China hosts abundant gold ore deposits. XFSO records a history of polyphase tectonic deformation and the structural controls on mineralization are poorly understood. recently discovered quartz-vein type Huanggou deposit southern is characterized by multiple stages represents an excellent natural laboratory for deciphering complex orogenic belt. A systematic analysis indicates that geometry adjacent areas mainly resulted from four deformation: (1) D1 top-to-the-NW sense shearing; (2) D2 SE-directed back-folding back-thrusting; (3) D3 NW–SE upright folding; (4) D4 normal faulting fracturing. Two sets quartz veins exposed deposit: SE-dipping Au-bearing veins; NW-dipping non-mineralized veins. were likely formed main phase XFSO. During simple shearing, these synkinematic progressively evolved into sigmoidal shapes rotated to preferred orientation. Subsequently, back-thrusting formation folding locally steepened dips both Our results may provide new insights
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ژورنال
عنوان ژورنال: Minerals
سال: 2022
ISSN: ['2075-163X']
DOI: https://doi.org/10.3390/min12060751