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Guochun Zhao
University of Hong Kong
GeologyCratonGeochemistryZirconPetrology
422Publications
101H-index
33kCitations
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Publications 427
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#1Harald Furnes (University of Bergen)H-Index: 49
#2Yildirim Dilek (Miami University)H-Index: 54
Last. M. Santosh (University of Adelaide)H-Index: 90
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Abstract Ophiolites are important archives of oceanic crust development and preservation in the rock record, and the Alpine-Himalayan Orogenic Belt (AHOB) is one of the most comprehensive ophiolite depositories in earth’s history. We have compiled published data on the field occurrences and geochemistry from 137 AHOB ophiolites, ranging in age from Triassic through Cretaceous, in order to characterize the nature of the Mesozoic Neotethyan oceanic crust. We have used in this synthesis our recent ...
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#1Xing Cui (HKU: University of Hong Kong)H-Index: 1
#2Min Sun (HKU: University of Hong Kong)H-Index: 97
Last. Liming Dai (Ocean University of China)H-Index: 21
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Abstract The early to middle Paleozoic accretionary history of the Chinese Altai orogen remains controversial, especially along its southern margin facing the Paleo-Asian Ocean. This study conducts a systematic investigation on the Devonian meta-volcanic sequences from the Altay Formation in the southern Chinese Altai to constrain their petrogenesis and tectonic implications. LA-ICP-MS zircon U Pb dating for rocks from the bottom and top layers of the studied volcanic sequences indicates their e...
1 CitationsSource
#1Xing Cui (HKU: University of Hong Kong)H-Index: 1
#2Min Sun (HKU: University of Hong Kong)H-Index: 97
Last. Yigui Han (Northwest University (United States))H-Index: 1
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Abstract High-grade metamorphic complexes are critical for the understanding of regional crustal configuration and accretionary history of the Altai orogenic belt. The orthogneissic rocks from the Northern Fuyun Complex, southern Chinese Altai, are investigated in this study. Zircon U Pb isotopic analysis yields ages of ca. 411–398 Ma, arguing against previous views that these rocks represent old Precambrian basement. All the samples are calc-alkaline, metaluminous to weakly peraluminous (ASI = ...
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#1Peng Wang (HKU: University of Hong Kong)H-Index: 2
#2Guochun Zhao (Northwest University (United States))H-Index: 101
Last. Jianhua LiH-Index: 2
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Abstract Collision can be subdivided into “soft” and “hard” types, with the “soft” collision occurring after double-sided oceanic subduction and the “hard” collision after single-sided oceanic subduction. Although two types of collision involve different geodynamics and generate distinct petrological assemblages, whether they can preserve distinct records of detrital zircons remains unclear. This study confirms “soft” collision between the north Western Kunlun terrane (NKT) and the south Western...
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#1Qian Liu (University of Tsukuba)H-Index: 17
#2Guochun Zhao (Northwest University (United States))H-Index: 101
Last. Toshiaki Tsunogae (UJ: University of Johannesburg)H-Index: 36
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#1Qian Wang (Northwest University (United States))
#2Christopher J. Spencer (Queen's University)H-Index: 22
Last. Bradley J. McDonald (Curtin University)H-Index: 10
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#1Peng Wang (HKU: University of Hong Kong)H-Index: 2
#2Guochun Zhao (Northwest University (United States))H-Index: 101
Last. Yanguang Li (CGS: China Geological Survey)H-Index: 1
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Abstract The collision between India and Asia created the most significant orogenic system of the Cenozoic. Although numerous collision-related igneous rocks formed, many post-collisional rocks were emplaced but have received less attention. Recently, geophysical investigations and field observations have suggested significant lateral variations in crust-mantle structure beneath the collisional zone. However, there have been few attempts so far to reveal the possible relationship between the lat...
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#1Peng Wang (HKU: University of Hong Kong)H-Index: 2
#2Guochun Zhao (Northwest University (United States))H-Index: 101
Last. Jianhua LiH-Index: 2
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Abstract The positions of the Tarim Craton in two Precambrian supercontinents Columbia and Rodinia still remains unknown or controversial due to the lack of geological and paleomagnetic data as the craton is largely covered by desert in the central part and sparse Precambrian basement rocks are scattered at its margins. In this contribution, we attempt to use new in situ zircon U-Pb ages and Hf isotopic data, combined with comprehensive compiled data from Precambrian basement rocks at its margin...
3 CitationsSource
Last. Bradley J. McDonaldH-Index: 10
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#1Yuexin Xie (HKU: University of Hong Kong)
#2Liyan Ma (CGS: China Geological Survey)
Last. Yuanfa Lu (Yangtze University)
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Abstract We present geochemical and geochronological data of host granodiorites and mafic microgranular enclaves (MMEs) from the Heping pluton, which is situated in the central part of the Wuyi-Yunkai Orogen (WYO) in the South China Block (SCB), and reveal syn-convergent extension and asthenosphere upwelling during the early Paleozoic intracontinental orogeny. Two host and two MME samples from the Heping pluton yield LA-ICP-MS zircon U Pb ages of ca. 445 Ma, coincident with the peak magmatism-me...
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