Wei Terry Chen
Chinese Academy of Sciences
Publications 43
#1Ping-Ping Liu (PKU: Peking University)H-Index: 15
#2Ju Liang (PKU: Peking University)
Last.Wei Terry Chen (CAS: Chinese Academy of Sciences)H-Index: 18
view all 4 authors...
Abstract The compositions of (titano)magnetite in magmatic and hydrothermal ore deposits have shown the potential to discriminate mineral deposit types. However, primary Fe-Ti oxides were sometimes overprinted by metamorphic event(s) over the long geologic history. To what extent the Fe-Ti oxide aggregates in mafic rocks can be modified, either by re-equilibration or interaction with the silicates, during high-grade metamorphism has not been systematically studied so far. The Mianhuadi mafic com...
#1Jian-Heng Guo (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
view all 9 authors...
Abstract The Zhongdian region in northwestern Yunnan (SW China) hosts a number of important porphyry and skarn deposits. In this study, we integrate petrographic observations, SEM-EDS elemental mapping, EPMA and LA-ICP-MS geochemical analyses on magnetite from several key deposits in the region. Magnetite grains from the Pulang porphyry Cu-Au, Lannitang porphyry Au-Cu, Langdu Cu skarn, Disuga porphyry, and andesite of Tumugou Formation were analyzed to unravel the magnetite formation mechanism, ...
#1Zhang Wj (CAS: Chinese Academy of Sciences)
#2Wei Zhang (CAS: Chinese Academy of Sciences)H-Index: 21
Last.Jia-Hui YanH-Index: 1
view all 8 authors...
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...
1 CitationsSource
#1Caiyun Lan (Northwest University (United States))H-Index: 1
#2ZHAOTaiping (CAS: Chinese Academy of Sciences)H-Index: 19
Last.Xiaoping Long (Northwest University (United States))H-Index: 32
view all 4 authors...
Abstract Magnetite, as a common oxide mineral in banded iron formations (BIFs) and ore deposits, is an ideal provenance indicator for mineral exploration, and its composition has long been used for genetic studies of ore deposits. However, many ore deposits, particularly the BIFs worldwide, have undergone various grades of secondary metamorphism or hydrothermal alteration. It is still unclear whether the original magnetite composition was modified during the secondary processes and, if so, to wh...
1 CitationsSource
#1Lei Liu (CAS: Chinese Academy of Sciences)H-Index: 8
#2Wei Terry Chen (CAS: Chinese Academy of Sciences)H-Index: 18
Abstract A number of Proterozoic Fe-(Cu) deposits or prospects are distributed along the Ailao Shan–Red River shear zone (ASRR) in South Yunnan, China and northern Vietnam, defining the potentially important Longbohe–Sin Quyen Fe-Cu belt. This belt was tentatively considered to be initially part of the Proterozoic Kangdian Fe-Cu province in southwestern Yangtze Block (SW China) before being southeastward displaced into the Cenozoic ASRR. However, such a model is still not confirmed convincingly ...
#1Wei Terry Chen (CAS: Chinese Academy of Sciences)H-Index: 18
#2Mei-Fu Zhou (CAS: Chinese Academy of Sciences)H-Index: 71
Last.YUANHonglin (Northwest University (United States))H-Index: 35
view all 6 authors...
Precisely dating different generations of mineralization is important for understanding the origin and tectonic environment of ore formation. In this study, we have dated two generations of sulfides from the Lala Fe-Cu deposit, SW China, using in situ Pb-Pb isotopic data obtained by the LA-MC-ICPMS technique. The Lala deposit is composed of Fe-Cu ore bodies hosted in sedimentary-volcanic rocks of the Paleoproterozoic Hekou Group. It has a paragenetic sequence of pre-ore banded pyrite (Stage I) a...
2 CitationsSource
#1Chang Jin (CAS: Chinese Academy of Sciences)H-Index: 2
#2Wei Terry Chen (CAS: Chinese Academy of Sciences)H-Index: 18
Last.ZHAOTaiping (CAS: Chinese Academy of Sciences)H-Index: 19
view all 6 authors...
Abstract The southern margin of the North China Craton (NCC) hosts many world-class porphyry Mo and vein-type Pb-Zn ± Ag deposits, forming an important polymetallic metallogenic belt in China, even over the world. Although the Mo and Pb-Zn ± Ag mineralization are temporarily and spatially associated with each other, their possible genetic links are still unclear. To delineate the relationships between the two types of ore mineralization, we carried out in-situ geochemical and S-Pb isotopic analy...
#1Wei Zhang (CAS: Chinese Academy of Sciences)H-Index: 1
#2Wei Terry Chen (CAS: Chinese Academy of Sciences)H-Index: 18
Last.Jing-Hui LiH-Index: 1
view all 5 authors...
Recent exploration revealed a number of rare earth element (REE) deposits that are distributed along the Qinling Orogenic Belt, Central China. These deposits have an estimated total reserve of about 2 Mt. REE2O3, thus making this belt a world-class REE metallogenic province. Understanding the metallogenesis of the belt requires direct dating of REE minerals. In this study, LA-ICP-MS U-Th-Pb dating on bastnasite and monazite from the Huangshuian, Taipingzhen, and Miaoya deposits in different unit...
1 CitationsSource
#1Xiao-Chun Li (HKU: University of Hong Kong)H-Index: 13
#2Mei-Fu Zhou (HKU: University of Hong Kong)H-Index: 71
Last.MyDung TranH-Index: 3
view all 5 authors...
The Sin Quyen deposit in northwestern Vietnam contains economic concentrations of Cu, Au and LREE, and sub-economic concentration of U. In this deposit, massive and banded replacement ores are hosted in Neoproterozoic metapelite. The paragenetic sequence includes sodic alteration (stage I), calcic-potassic alteration and associated Fe-REE-(U) mineralization (stage II), Cu-Au mineralization (stage III), and sulfide-(quartz-carbonate) veins (stage IV). The Sin Quyen deposit experienced an extensiv...
14 CitationsSource
#1Wei Wang (China University of Geosciences)H-Index: 42
#2Manoj K. Pandit (University of Rajasthan)H-Index: 23
Last.Jianping Zheng (China University of Geosciences)H-Index: 34
view all 5 authors...
Abstract The Neoproterozoic Malani Igneous Suite (MIS) is described as the largest felsic igneous province in India. The linearly distributed Sindreth and Punagarh basins located along eastern margin of this province represent the only site of bimodal volcanism and associated clastic sediments within the MIS. The in-situ zircon U-Pb dating by LA-ICPMS reveals that the Sindreth rhyolites were erupted at 769–762 Ma. Basaltic rocks from both the basins show distinct geochemical signatures that sugg...
18 CitationsSource