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NARROW
GeoRef Subject
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all geography including DSDP/ODP Sites and Legs
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Asia
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Far East
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China
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South China Block (3)
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Xizang China (2)
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Yangtze Platform (1)
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Yunnan China
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Ailao Shan (4)
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Himalayas (1)
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Qiangtang Terrane (2)
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Southeast Asia (1)
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Tibetan Plateau (1)
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Red River Fault (1)
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commodities
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metal ores
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base metals (1)
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copper ores (2)
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gold ores (6)
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nickel ores (1)
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mineral deposits, genesis (4)
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mineral exploration (3)
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elements, isotopes
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isotopes
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Pb-208/Pb-204 (1)
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stable isotopes
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Nd-144/Nd-143 (3)
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Pb-207/Pb-206 (1)
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S-34/S-32 (2)
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Sr-87/Sr-86 (4)
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metals
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alkaline earth metals
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strontium
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hafnium
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Hf-177/Hf-176 (3)
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lead
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precious metals (2)
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neodymium
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samarium (1)
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noble gases
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argon
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Ar-40/Ar-36 (1)
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helium
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oxygen
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sulfur
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Primary terms
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Asia
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Far East
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China
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South China Block (3)
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Xizang China (2)
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Yangtze Platform (1)
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Yunnan China
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Ailao Shan (4)
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Himalayas (1)
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Qiangtang Terrane (2)
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igneous rocks
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granites
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ultramafics (1)
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volcanic rocks (2)
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inclusions
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intrusions (4)
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isotopes
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radioactive isotopes
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Pb-206/Pb-204 (1)
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Pb-207/Pb-204 (1)
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Pb-208/Pb-204 (1)
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stable isotopes
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Ar-40/Ar-36 (1)
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He-4/He-3 (1)
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Hf-177/Hf-176 (3)
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Nd-144/Nd-143 (3)
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O-18/O-16 (3)
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Pb-206/Pb-204 (1)
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Pb-207/Pb-204 (1)
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Pb-207/Pb-206 (1)
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S-34/S-32 (2)
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metal ores
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base metals (1)
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copper ores (2)
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gold ores (6)
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nickel ores (1)
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metals
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alkaline earth metals
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strontium
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Sr-87/Sr-86 (4)
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hafnium
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Hf-177/Hf-176 (3)
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lead
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Pb-206/Pb-204 (1)
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Pb-207/Pb-206 (1)
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Pb-208/Pb-204 (1)
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precious metals (2)
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rare earths
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neodymium
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Nd-144/Nd-143 (3)
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samarium (1)
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metamorphic rocks
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metasedimentary rocks
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metasandstone (1)
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migmatites (1)
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metamorphism (2)
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metasomatism (1)
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mineral deposits, genesis (4)
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mineral exploration (3)
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noble gases
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argon
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Ar-40/Ar-36 (1)
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helium
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orogeny (2)
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oxygen
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O-18/O-16 (3)
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plate tectonics (7)
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Precambrian
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upper Precambrian
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sedimentary rocks
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carbonate rocks
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dolostone (1)
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sediments (2)
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structural analysis (2)
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sulfur
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S-34/S-32 (2)
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tectonics (5)
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sedimentary rocks
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sedimentary rocks
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carbonate rocks
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dolostone (1)
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turbidite (1)
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sediments
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sediments (2)
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turbidite (1)
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Laowangzhai Deposit
Application of a multi-fractal model for identification of Cu, Au and Zn anomalies in Western Yunnan, Southwestern China
Multi-element association analysis of stream sediment geochemistry data for predicting gold deposits in south-central Yunnan Province, China
Multifractal power spectrum and singularity analysis for modelling stream sediment geochemical distribution patterns to identify anomalies related to gold mineralization in Yunnan Province, South China
INTERESTING PAPERS IN OTHER JOURNALS
U–Pb geochronology and trace-element composition of zircons from the Jinchang Au–Ni deposit, SW China, and their implications for tectonics
The Himalayan Yulong Porphyry Copper Belt: Product of Large-Scale Strike-Slip Faulting in Eastern Tibet
Fluid source and metal precipitation mechanism of sediment-hosted Chang'an orogenic gold deposit, SW China: Constraints from sulfide texture, trace element, S, Pb, and He-Ar isotopes and calcite C-O isotopes
MINERAL ASSEMBLAGES, FLUID INCLUSIONS, PYRITE TRACE ELEMENTS, AND S-O ISOTOPES OF GOLD ORES FROM THE CENOZOIC DAPING DEPOSIT, SW CHINA: IMPLICATIONS FOR THE GENESIS OF COMPLEX OROGENIC LODE GOLD SYSTEMS
Discovery of Middle–Late Devonian and Early Permian magmatic events in East Asia and their implication for the Indosinian orogeny in South China: Insights from the sedimentary record
Geodynamics of the Indosinian orogeny between the South China and Indochina blocks: Insights from latest Permian–Triassic granitoids and numerical modeling
The Ailao Shan–Red River shear zone revisited: Timing and tectonic implications
Migmatite and leucogranite in a continental-scale exhumed strike-slip shear zone: Implications for tectonic evolution and initiation of shearing
Middle-lower crustal flow in response to the India-Eurasia collision: Structural evidence from the southern Chong Shan belt within the Sundaland block, southeastern Tibetan Plateau
Chapter 8 Orogenic Gold Deposits of China
Abstract China produces about 450 t Au per year and has government stated in-ground reserves of approximately 12,000 t Au. Orogenic gold, or gold deposits in metamorphic rocks, and associated placer deposits compose about 65 to 75% of this endowment, with lodes existing as structurally hosted vein and/or disseminated orebodies. The abundance of orogenic gold deposits reflects Paleozoic to Triassic closure of Paleo-Tethyan ocean basins between Precambrian blocks derived from Rodinia and Gondwana as well as late Mesozoic-Cenozoic circum-Pacific events and Cenozoic Himalayan orogeny. The deposits range in age from middle Paleozoic to Pleistocene. The Jiaodong Peninsula contains about one-third of China’s overall endowment, and large resources also characterize East Qinling, West Qinling, and the Youjiang basin. Although gold ores in Jiaodong postdate formation and metamorphism of Precambrian host rocks by billions of years, they are nevertheless classified here as orogenic gold ores rather than as a unique Jiaodong-type or decratonic-type of gold deposit. Similarly, although many workers classify the gold lodes in the Youjiang basin and much of West Qinling as Carlin-type gold, they show significant differences from gold ores in Nevada, United States, and are better defined as epizonal orogenic gold deposits. Although there are widespread exposures of Precambrian rocks in China, there are no significant Precambrian gold deposits. If large ancient orogenic gold deposits formed in Archean and Paleoproterozoic rocks, then they have been eroded, because these deep crustal rocks that are now exposed in China’s cratonic blocks have been uplifted from levels too deep for orogenic gold formation. The oldest large gold deposits in China are perhaps those of the Qilian Shan that were formed in association with Silurian tectonism along the present-day southwestern margin of the North China block. Closure of ocean basins in the outer parts of the Central Asian orogenic belt led to late Carboniferous to Middle Triassic orogenic gold formation in the Tian Shan, Altay Shan, Beishan, and northwestern North China block. Deformation associated with amalgamation of the North China block, northern Tibet terranes, South China block, and Indochina, as well as initial Paleo-Pacific subduction, can be related to Late Triassic orogenic gold formation in West Qinling, East Kunlun, Youjiang basin, West Jiangnan (Xuefengshan belt), Hainan Island, and Yunkaidashan gold provinces. In the middle Mesozoic, continued subduction along the Paleo-Pacific margin was associated with gold ores forming in East and Central Jiangnan, whereas early to middle Mesozoic deformation along the northern North China block formed important orogenic lodes in Precambrian basement (e.g., Jiapigou, Zhangjiakou, and Yanshan districts). Continued Yanshanian orogeny in the eastern half of the North China block led to extensive orogenic gold formation during the main period of decratonization and regional extension at ca. 135 to 120 Ma (e.g., Jiaodong, Liaodong, Chifeng-Chaoyang, Zhangbaling, Taihangshan, and East Qinling). At the same time, strike-slip events in central Transbaikal were associated with orogenic gold formation in both Russia and adjacent northeastern China and likely are the source for China’s most productive gold placers in the upper Heilongjiang basin. China’s youngest orogenic gold deposits formed in the Ailaoshan, Lanping basin, Ganzi-Litang belt, Daduhe district, and areas south of the Lhasa terrane in Tibet during the middle Cenozoic, as well as in the northern half of the Central Range of Taiwan during the Pliocene-Pleistocene.