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Yongfeng Zhu
Peking University
63Publications
16H-index
959Citations
Publications 63
Newest
Published on Apr 1, 2019in Journal of Geochemical Exploration 2.86
Huichao Zhang1
Estimated H-index: 1
(PKU: Peking University),
Yongfeng Zhu1
Estimated H-index: 1
(PKU: Peking University)
Abstract The Gezigou gold deposit, which is located in west Junggar (Xinjiang, China), is mainly hosted in graphite-bearing siltstone. These ore bodies, which consist of gold-bearing hydrothermal veins and mineralized siltstone with disseminated sulfides, formed in three stages: quartz-sulfides-native gold (I), arsenopyrite-calcite-native gold (II), and quartz-calcite (III) stages. The microthermometric and laser Raman spectroscopic analysis of the fluid inclusions in stage I-quartz demonstrate ...
1 Citations Source Cite
Published on Mar 1, 2019in Ore Geology Reviews 3.99
Shaoni Wei (PKU: Peking University), Yongfeng Zhu16
Estimated H-index: 16
(PKU: Peking University)
+ 1 AuthorsWanyi Feng1
Estimated H-index: 1
(PKU: Peking University)
Abstract The ore-forming processes in the Baogutu porphyry copper deposit are spatially and temporally related to the Late Carboniferous intrusions in the west Junggar of China. The mineralized intrusions, consisting of granodiorite, quartz diorite, and diorite, are characterized by moderate zircon Ce 4+ /Ce 3+ ratios (15.9 – 163) and Eu/Eu * ratios (0.25 – 0.57; Eu/Eu * = Eu N /(Sm N ×Gd N ) 1/2 ). Estimated magmatic oxidation state based on amphibole crystallized in the deep magma chamber (log...
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Published on Feb 1, 2019in Ore Geology Reviews 3.99
Ruihua Li (PKU: Peking University), Hegen Ouyang (CAS: Chinese Academy of Sciences)+ 1 AuthorsYongfeng Zhu16
Estimated H-index: 16
(PKU: Peking University)
Abstract The Pamir and Tibetan plateaus, which have a similar terrane structure and evolutionary history since the Phanerozoic, are both host abundant Eocene to Miocene intrusions, however, unlike the Tibetan plateau, coeval porphyry deposits appear to be devoid in the Pamir plateau. In this study, we first report a potentially economic Cu-bearing sulfide mineralization at Siruyidie’er prospect in the Central Pamir. The Siruyidie’er prospect is characterized by the development of 14 breccia pipe...
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Published on Dec 1, 2018in Canadian Journal of Earth Sciences 1.32
Huichao Zhang (PKU: Peking University), Yongfeng Zhu (PKU: Peking University)
Geological characteristics and geochemical analyses are reported for the early Carboniferous pillow basalt in the Huilvshan region (west Junggar, Northwest China), with the aim to indicate its petrogenesis, magma source characteristics, and tectonic implication. This pillow basalt consists of clinopyroxene and plagioclase with trace amounts of magnetite, apatite, and chromian spinel. It is tholeiitic in composition with low concentrations of Na2O + K2O (1.52–4.74 wt.%). Similar to the N-MORB, th...
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Published on Dec 1, 2018in Lithos 3.86
Wanyi Feng1
Estimated H-index: 1
(PKU: Peking University),
Yongfeng Zhu16
Estimated H-index: 16
(PKU: Peking University)
Abstract The volcanic rocks, consisting of basalt, basaltic andesite, andesite, and tuff with volcanic clastic sedimentary rocks in the Dahalajunshan region represent an early Carboniferous continental arc formed during subduction of the Paleo-southern Tianshan ocean. The basalt is characterized by a phenocryst assemblage of clinopyroxene and plagioclase, while basaltic andesite and andesite contain variable amounts of clinopyroxene, orthopyroxene, plagioclase, and Fe Ti oxides phenocrysts. Clin...
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Published on Nov 1, 2018in Gondwana Research 5.66
Jiuyang Jiang1
Estimated H-index: 1
(PKU: Peking University),
Yongfeng Zhu16
Estimated H-index: 16
(PKU: Peking University)
Abstract The Baobei pluton in west Junggar, composed of an earlier pyroxene-bearing granitoid and a variety of later pyroxene-absent hornblende–biotite-bearing granitoids (quartz diorite, granodiorite, monzogranite), intrudes early Carboniferous volcano–sedimentary rocks. Zircons separated from the granodiorite provide a U–Pb age of 306.5 ± 2.6 Ma, which represents the age of magma emplacement. The pyroxene-bearing granitoid is porphyritic with phenocrysts of orthopyroxene and plagioclase. Two t...
1 Citations Source Cite
Published on Oct 1, 2018in Lithos 3.86
Wanyi Feng1
Estimated H-index: 1
(PKU: Peking University),
Yongfeng Zhu16
Estimated H-index: 16
(PKU: Peking University)
Abstract New petrological and geochemical data for the mafic (pillow basalt, massive basalt, gabbro) and ultramafic rocks (serpentinite, serpentinized harzburgite) in the north Tianshan ophiolite cropping out along the Duku road are combined to constrain the geological evolution of the north Tianshan ophiolite, which marks the boundary between the Yili-central Tianshan and the Junggar terranes. Pillow basalt, characterized by significant enrichments of light rare earth elements (REE) as well as ...
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