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De-Feng He
Chinese Academy of Sciences
11Publications
10H-index
496Citations
Publications 11
Newest
#1Zhong-Jie Bai (CAS: Chinese Academy of Sciences)H-Index: 10
#2Hong Zhong (CAS: Chinese Academy of Sciences)H-Index: 27
Last.Liang Qi (CAS: Chinese Academy of Sciences)H-Index: 32
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Many ~260 Ma mafic-ultramafic layered intrusions, including Hongge and Panzhihua, in the Emeishan large igneous province, southwestern China host world-class Fe-Ti-V oxide ore deposits. These two most important ore-bearing intrusions show differences in lithology and mineral chemistry. The most important orebodies in the Hongge intrusion occur as concordant layers in the middle part of the intrusion, closely associated with clinopyroxenites. Titanomagnetite and Mg-rich ilmenite are the major ore...
#1Hong-Peng Fan (CAS: Chinese Academy of Sciences)H-Index: 5
#2Wei-Guang Zhu (CAS: Chinese Academy of Sciences)H-Index: 15
Last.Chong-Yong CaoH-Index: 1
view all 8 authors...
Platinum-group element (PGE) geochemistry combined with elemental geochemistry and magnetite compositions are reported for the Mesoproterozoic Zhuqing Fe–Ti–V oxide ore-bearing mafic intrusions in the western Yangtze Block, SW China. All the Zhuqing gabbros display extremely low concentrations of chalcophile elements and PGEs. The oxide-rich gabbros contain relatively higher contents of Cr, Ni, Ir, Ru, Rh, and lower contents of Pt and Pd than the oxide-poor gabbros. The abundances of whole-rock ...
#1Hong-Peng Fan (CAS: Chinese Academy of Sciences)H-Index: 5
#2Wei-Guang Zhu (CAS: Chinese Academy of Sciences)H-Index: 15
Last.Chong-Yong CaoH-Index: 1
view all 8 authors...
Abstract Secondary ion mass spectroscopy (SIMS) zircon and baddeleyite U–Pb ages, elemental, and Nd isotopic data are reported for the Zhuqing Fe–Ti–V oxide ore-bearing mafic intrusions in western Yangtze Block, South China. The mafic intrusions are dated at 1494 ± 6 Ma (zircon U–Pb), 1486 ± 3 Ma (baddeleyite U–Pb) and 1490 ± 4 Ma (baddeleyite U–Pb). The intrusions are dominantly gabbros that experienced variable degrees of alteration. All the studied rocks are high-Ti and alkaline in compositio...
#1De-Feng He (CAS: Chinese Academy of Sciences)H-Index: 10
#2Wei-Guang Zhu (CAS: Chinese Academy of Sciences)H-Index: 15
Last.Hong-Peng Fan (CAS: Chinese Academy of Sciences)H-Index: 5
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Abstract The Garze–Litang suture zone, located in the eastern part of the Tethyan tectonic domain, is notable for widespread Late Triassic granitic plutons, which are genetically associated with the evolution of the Paleo–Tethys Ocean. The Daocheng granitic pluton in the eastern Yidun Arc, SW China, is located in the middle of the Garze–Litang suture zone and has an outcrop area of ∼2800 km 2 . In the present study, we report zircon U–Pb ages and elemental and Sr–Nd–Hf isotopic data for the Daoc...
#1Hong Zhong (CAS: Chinese Academy of Sciences)H-Index: 27
#2Ian H. Campbell (ANU: Australian National University)H-Index: 65
Last.De-Feng He (CAS: Chinese Academy of Sciences)H-Index: 10
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Several I- and A-type granite, syenite plutons and spatially associated, giant Fe–Ti–V deposit-bearing mafic–ultramafic layered intrusions occur in the Pan–Xi (Panzhihua–Xichang) area within the inner zone of the Emeishan large igneous province (ELIP). These complexes are interpreted to be related to the Emeishan mantle plume. We present LA-ICP-MS and SIMS zircon U–Pb ages and Hf–Nd isotopic compositions for the gabbros, syenites and granites from these complexes. The dating shows that the age o...
#1Wei-Guang Zhu (CAS: Chinese Academy of Sciences)H-Index: 15
#2Hong Zhong (CAS: Chinese Academy of Sciences)H-Index: 27
Last.Jin-Qing LiaoH-Index: 1
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Abstract The early Yanshanian geology of Southeastern (SE) China is characterized by widespread igneous rocks consisting predominantly of granites and rhyolites, and subordinate mafic intrusive and volcanic rocks. However, the onset time, petrogenesis, and tectonic implications of the early Jurassic magmatism in SE China remain highly controversial. We report here zircon U–Pb ages, geochemistry, and Nd–Sr isotopic data for the Fe–Ti–V oxide-bearing Xianlan mafic–ultramafic intrusion and the Weng...
#1LIXianhua (CAS: Chinese Academy of Sciences)H-Index: 80
#2Wei-Guang ZhuH-Index: 15
Last.Feng LiuH-Index: 2
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Abstract Secondary ion mass spectroscopy U-Pb zircon ages and mineralogical, geochemical, and Nd isotopic data are reported for the Tongde picritic dikes in the Yanbian area of the western Yangtze Block, South China. The picritic dikes, which intruded in the ca. 820-Ma Tongde complex, are dated at Ma. Most of the picritic rocks are highly porphyritic (ca. 15–35 vol% phenocrysts) with dominant olivine (–92) phenocrysts that are high in CaO (up to 0.43 wt%), Cr2O3, and Ni. All the studied rocks ar...
#1Wei-Guang Zhu (CAS: Chinese Academy of Sciences)H-Index: 15
#2Hong Zhong (CAS: Chinese Academy of Sciences)H-Index: 27
Last.Hailin Deng (CAS: Chinese Academy of Sciences)H-Index: 13
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The Xinjie layered intrusion is one of a number of major ultramafic-mafic bodies hosting Fe-Ti-V deposits and Cu-Ni-PGE sulfide deposits in the Pan-Xi (Panzhihua-Xichang) area of the Sichuan Province, SW China. The Xinjie ultramafic-mafic layered intrusion, genetically related to the Permian plume-related Emeishan flood basalts, consists of three lithological cycles, each representing a sequence from ultramafic to mafic-felsic composition. The basal part of the intrusion is composed of three lit...
#1Hong Zhong (CAS: Chinese Academy of Sciences)H-Index: 27
#2Wei-Guang Zhu (CAS: Chinese Academy of Sciences)H-Index: 15
Last.CHUZhuyin (CAS: Chinese Academy of Sciences)H-Index: 28
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Abstract The late Permian Panzhihua syenitic stock in the Pan-Xi area, SW China, showing the typical association of mantle-derived mafic and alkaline rocks along with silicic units, is genetically related to the upwelling Emeishan plume head. This syenitic intrusion consists mainly of metaluminous syenite, metaluminous to peralkaline quartz syenite with subordinate syenite porphyry and alkali-feldspar granite. SHRIMP U–Pb zircon analysis reveal that the Panzhihua syenitic pluton was emplaced at ...
#1Wei-Guang Zhu (CAS: Chinese Academy of Sciences)H-Index: 15
#2Hong Zhong (CAS: Chinese Academy of Sciences)H-Index: 27
Last.Zhong-Jie Bai (CAS: Chinese Academy of Sciences)H-Index: 10
view all 7 authors...
Sensitive High-Resolution Ion Microprobe (SHRIMP) U–Pb zircon ages, geochemical and Nd isotopic data are reported for two groups of Neoproterozoic mafic dykes in the Yanbian area of Sichuan Province, SW China. The Group 1 and Group 2 dykes were dated at 792 ± 13 Ma and 761 ± 14 Ma, respectively. While Group 1 and Group 2 rocks are commonly high in Fe2O3 and TiO2 contents with similar MgO contents and Mg numbers, they exhibit distinct trace element features. Group 1 rocks with high eNd(T) values ...
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