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Cheng-Biao Leng
Chinese Academy of Sciences
21Publications
8H-index
250Citations
Publications 21
Newest
#1Wei Zhang (CAS: Chinese Academy of Sciences)H-Index: 21
#2Anthony E. Williams-Jones (McGill University)H-Index: 46
Last.Jia-Hui YanH-Index: 1
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Abstract Although most of the methane on Earth is of biogenic origin, significant abiogenic methane has been identified in a variety of geological environments. Moreover, the presence of methane has been reported recently in fluid inclusions from a number of reduced porphyry deposits. The genesis of this methane, however, remains poorly understood. Here, we present results of a study of magma-exsolved CH4-rich aqueous fluid inclusions in the Seleteguole reduced porphyry–skarn Cu–Mo–Au deposit, N...
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#1Yongyong Tang (CAS: Chinese Academy of Sciences)H-Index: 5
#2Xianwu Bi (CAS: Chinese Academy of Sciences)H-Index: 26
Last.Hai Zhang (CAS: Chinese Academy of Sciences)
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Abstract Over 400 carbonate-hosted Pb-Zn deposits in the western Yangtze block constitute the giant Sichuan-Yunnan-Guizhou (SYG) Pb-Zn metallogenic province. The majority of Pb-Zn deposits hosted in Devonian carbonates are characterized by low δ34S values, causing debates on their ore genesis. To address this issue, the Yunluheba Pb-Zn deposit is chosen as a case study. Ore bodies of this deposit are hosted in middle Devonian carbonates. Ore minerals are sphalerite, galena and pyrite. Sphalerite...
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#1Cheng-Biao Leng (CAS: Chinese Academy of Sciences)H-Index: 8
#2Wei Wang (CAS: Chinese Academy of Sciences)H-Index: 33
Last.Xing-Chun Zhang (CAS: Chinese Academy of Sciences)H-Index: 11
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Abstract The Kukaazi Pb-Zn deposit was recently discovered in the western Kunlun orogen (WKO), NW China. This deposit consists of three ore blocks (KI to KIII) hosted in Mesoproterozoic metamorphosed rocks. Ores are mainly composed of sphalerite, galena, chalcopyrite and scheelite. Here we present in-situ LA-ICP-MS trace elemental compositions of sphalerite and galena of sulfide ores from ore blocks KI and KII, to shed light on the ore formation and its regional tectono-metallogenic implications...
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#1Tehseen Zafar (CAS: Chinese Academy of Sciences)H-Index: 1
#2Cheng-Biao Leng (CAS: Chinese Academy of Sciences)H-Index: 8
Last.Hafiz Ur Rehman (Kadai: Kagoshima University)H-Index: 8
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Abstract Apatite is a significant accessory mineral which is ubiquitous in Kukaazi granitic bodies and provides vital geological information concerning petrogenetic as well as metallogenic attributes. Particularly, igneous apatite is important to delineate nature of parental magma and its characteristics. Here we present new EPMA and LA-ICP-MS data on magmatic apatite of Kukaazi pluton to explore its potential in petrogenesis as well as mineralization and this deposit is widely exposed in wester...
1 CitationsSource
#1Zhen-Dong Tian (CAS: Chinese Academy of Sciences)H-Index: 1
#2Cheng-Biao Leng (CAS: Chinese Academy of Sciences)H-Index: 8
Last.Chun-Kit Lai (UBD: Universiti Brunei Darussalam)H-Index: 11
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Abstract In this study, we present new mineral chemical data on the garnet from the Hongshan Cu-Mo deposit, one of the largest skarn deposits in the Sanjiang Tethyan tectonic domain, in SW China. The aims are to unravel the formation mechanism of the oscillatory-zoned garnet at Hongshan, and to explore possible applications using garnet trace element features to distinguish different types of skarn deposits. Two generations of garnets, i.e., poorly-zoned garnet I (Grt I) and the well-zoned garne...
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#1Jie-Hua Yang (CAS: Chinese Academy of Sciences)H-Index: 6
#2PENGJiantang (CAS: Chinese Academy of Sciences)H-Index: 16
Last.Cheng-Biao Leng (CAS: Chinese Academy of Sciences)H-Index: 8
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Abstract The Xihuashan tungsten deposit, hosted in the late Jurassic granitic pluton in the Nanling Range of South China, has a total resource of about 81,300 tonnes of WO 3 with an average ore grade of 1.08% WO 3 . Wolframite is the dominant ore mineral and intergrown with quartz in the main mineralization stage. Ore-forming fluids trapped in wolframite have δD and δ 18 O values from -82‰ to -64‰ and 7.4‰ to 8.8‰, respectively. Those in quartz have similar δD (-72‰ to -58‰) and δ 18 O (6.8‰ to ...
1 CitationsSource
#1Cheng-Biao Leng (CAS: Chinese Academy of Sciences)H-Index: 8
#2Jian-Feng Gao (CAS: Chinese Academy of Sciences)H-Index: 30
Last.Jian-Heng Guo (CAS: Chinese Academy of Sciences)H-Index: 1
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Abstract A new model of porphyry Cu system, which involves pre-enrichment of Cu through sulfide accumulation near the mantle-crust boundary, has been recently proposed to account for variations of Cu endowment in different magmatic arcs. To test this model and explore the possible controlling factors of porphyry Cu metallogeny, we studied the mineralogy and platinum-group elements (PGE) geochemistry of the giant Pulang porphyry Cu-Au system in the Sanjiang Region, SW China. The Late Triassic Pul...
4 CitationsSource
#1Cheng-Biao Leng (CAS: Chinese Academy of Sciences)H-Index: 8
#2David R. Cooke (UTAS: University of Tasmania)H-Index: 34
Last.Jie-Hua Yang (CAS: Chinese Academy of Sciences)H-Index: 1
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The Triassic Pulang porphyry Cu-Au deposit, located in the South Yidun terrane, is the oldest and one of the largest porphyry deposits in the southeastern Tibetan Plateau. The mineralization occurs mostly in the potassic alteration zone of the Pulang intrusive complex. U-Pb-He triple dating, namely apatite (U-Th)/He, zircon U-Pb, and zircon (U-Th)/He dating, together with inverse thermal modeling, reveals that the Pulang complex was emplaced at a paleodepth of ˜5.0 to 6.5 km at 215 ± 2 Ma. The d...
4 CitationsSource
#1Cheng-Biao Leng (CAS: Chinese Academy of Sciences)H-Index: 8
#2Yuhui Wang (CAS: Chinese Academy of Sciences)H-Index: 2
Last.Xinying XuH-Index: 1
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The Kukaazi Pb–Zn–Cu–W polymetallic deposit, located in the Western Kunlun orogenic belt, is a newly discovered skarn-type deposit. Ore bodies mainly occur in the forms of lenses and veins along beddings of the Mesoproterozoic metamorphic rocks. Three ore blocks, KI, KII, and KIII, have been outlined in different parts of the Kukaazi deposit in terms of mineral assemblages. The KI ore block is mainly composed of chalcopyrite, scheelite, pyrrhotite, sphalerite, galena and minor pyrite, arsenopyri...
3 CitationsSource
#1Wei Zhang (CAS: Chinese Academy of Sciences)H-Index: 2
#2Cheng-Biao Leng (CAS: Chinese Academy of Sciences)H-Index: 8
Last.Jing-Liang CaoH-Index: 1
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The Seleteguole Cu–Mo deposit in Jinghe County, Xinjiang is tectonically located on the northern margin of the Northwestern Tianshan. Three major intrusions including biotite granite, diorite porphyry and quartz diorite porphyry have been identified. The biotite granite, with a zircon U–Pb age of 307 ± 3 Ma, intruded carbonates and clastic rocks of the Middle Carboniferous Dongtujin Formation. The younger diorite porphyry and quartz diorite porphyry, with an identical zircon U–Pb age of 302 ± 3 ...
4 CitationsSource
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