Thrust-controlled, sediment-hosted, Himalayan Zn–Pb–Cu–Ag deposits in the Lanping foreland fold belt, eastern margin of Tibetan Plateau

He, Lijuan; Song, Yougui; Chen, Kaixu; Hou, Zhiyuan; Feng-ming, YU; Yang, Zhen; Jun-qi, Wei; Li, Zheng; Liu, Yingchao

doi:10.1016/j.oregeorev.2008.11.001

Cited by 61 publications

(65 citation statements)

References 17 publications

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“…A large number of base metal deposits and occurrences (some containing Ag) have been found in the Lanping Basin (He et al . ). The vein Cu deposits, including the Jinman–Liancheng deposit, occur within or adjacent to the Chong Shan shear zone at the western border of the Lanping Basin (Fig.…”

Section: Geologic Backgroundmentioning

confidence: 97%

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Fluid inclusion and isotopic constraints on the origin of ore‐forming fluid of the Jinman–Liancheng vein Cu deposit in the Lanping Basin, western Yunnan, China

et al. 2015

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Extensive quartz-carbonate-Cu sulfide veins occur in clastic rocks and are spatially related to Paleocene granites in the western border of the Lanping Basin, western Yunnan, China. Abundant aqueous-carbonic fluid inclusions occur in these veins but their origin is debated. In the Jinman-Liancheng deposit, individual primary inclusion groups contain either exclusively liquid-rich inclusions (Gl), or coexisting liquid-rich and vapor-rich inclusions (Glv). Microthermometry and estimate of CO 2 content indicate that type Gl inclusions either have homogenization temperatures (Th) 238-263°C and contain c. 3.9-5.5 mole % CO 2 , or have Th 178-222°C and contain c. 1.6-3.2 mole % CO 2 . Type Glv inclusions are thought to represent samples of fluid unmixing that occurred at 183-218°C. At that time, the liquid phase in the unmixing fluid may contain c. 2.0-3.3 mole % CO 2 . As such, the correlation of CO 2 content with Th for type Gl inclusions is thought to be caused by fluid unmixing with decreasing temperature and subsequent CO 2 escape. indicate that the carbon and sulfur can be derived from (degassed) magma and/or nonmagmatic sources. The CO 2 -rich and magmatic-water-derived fluid at Jinman-Liancheng differs from the CO 2 -poor and basinally derived fluid in sediment-hosted stratiform Cu (SSC) deposits, which suggests that there are no genetic linkages between the vein Cu and SSC deposits in the Lanping Basin.

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Section: Geologic Backgroundmentioning

confidence: 97%

“…; Xu & Li ; He et al . ). However, abundant CO 2 ‐rich fluid inclusions are found in the Jinman ore block, as well as in other vein Cu deposits of the basin.…”

Section: Introductionmentioning

confidence: 97%

Fluid inclusion and isotopic constraints on the origin of ore‐forming fluid of the Jinman–Liancheng vein Cu deposit in the Lanping Basin, western Yunnan, China

et al. 2015

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“…The genesis of the ore has remained enigmatic despite many studies on the deposit (Wang et al 1990; Qin and Zhu 1991;Li and Kyle 1997;Kyle and Li 2002;Chi et al 2006Chi et al , 2007Xue et al 2007;He et al 2009;Hou and Cook 2009). The Jinding deposit has been classified as a syngenetic, sedimentary exhalite (SEDEX), Mississippi Valley-Type (MVT) and a unique BJinding-type deposit^ ).…”

Section: Introductionmentioning

confidence: 99%

The world-class Jinding Zn–Pb deposit: ore formation in an evaporite dome, Lanping Basin, Yunnan, China

2016

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The Jinding Zn-Pb sediment-hosted deposit in western Yunnan, China, is the fourth largest Zn deposit in Asia. Based on field observations of the ore textures, breccias, and the sandstone host rocks, the ores formed in a dome that was created by the diapiric migration of evaporites in the Lanping Basin during Paleogene deformation and thrust loading. Most of the ore occurs in sandstones that are interpreted to be a former evaporite glacier containing a mélange of extruded diapiric material, including breccias, fluidized sand, and evaporites that mixed with sediment from a fluvial sandstone system. A pre-ore hydrocarbon and reduced sulfur reservoir formed in the evaporite glacier that became the chemical sink for Zn and Pb in a crustal-derived metalliferous fluid. In stark contrast to previous models, the Jinding deposit does not define a unique class of ore deposits; rather, it should be classified as MVT sub-type hosted in a diapiric environment. Given that Jinding is a world-class ore body, this new interpretation elevates the exploration potential for Zn-Pb deposit in other diapir regions in the world.

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“…The deposit is apparently different from the sedimenthosted base metal deposits in other parts of the world, and genetically it remain poorly understood (Li and Fu, 2000;He et al, 2009). Most of previous geochemical studies indicated that metallogenic materials and ore fluids were mainly derived from sedimentary rocks of the basin (Xiao et al, 1994;Li and Fu, 2000;Liu et al, 2000Liu et al, , 2001Wu et al, 2003), whereas some studies argued that the oreforming components mainly derived from the mantle through deep structures (Ji and Li, 1998;Chi and Xue, 2011).…”

Section: Introductionmentioning

confidence: 99%

Geology, Fluid Inclusions, and Isotope Geochemistry of the Jinman Sediment‐hosted Copper Deposit in the Lanping Basin, China

Zhang

Wen

Qiu

et al. 2014

Acta Geologica Sinica (Eng)

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Thrust-controlled, sediment-hosted, Himalayan Zn–Pb–Cu–Ag deposits in the Lanping foreland fold belt, eastern margin of Tibetan Plateau

Cited by 61 publications

References 17 publications

Fluid inclusion and isotopic constraints on the origin of ore‐forming fluid of the Jinman–Liancheng vein Cu deposit in the Lanping Basin, western Yunnan, China

Fluid inclusion and isotopic constraints on the origin of ore‐forming fluid of the Jinman–Liancheng vein Cu deposit in the Lanping Basin, western Yunnan, China

The world-class Jinding Zn–Pb deposit: ore formation in an evaporite dome, Lanping Basin, Yunnan, China

Geology, Fluid Inclusions, and Isotope Geochemistry of the Jinman Sediment‐hosted Copper Deposit in the Lanping Basin, China

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