Article
Geosciences, Multidisciplinary
Meng-Long Duan, Chao-Ming Xie, Bin Wang, Yu-Hang Song, Wen-qing Li, Yu-jie Hao
Summary: This study conducted a systematic geological survey and zircon U-Pb dating and Hf isotope analysis of the Lower Carboniferous Yongzhu Formation in the Lhasa Block. The results suggest that the Lhasa Block might have been located at the northern margin of the Indian and Australian continents during the Early Carboniferous, and the Yongzhu Formation has a mixed provenance.
JOURNAL OF ASIAN EARTH SCIENCES
(2023)
Article
Geosciences, Multidisciplinary
Yiming Liu, Qingguo Zhai, Peiyuan Hu, Yue Tang, Haoyang Lee
Summary: This study presents new detrital zircon U-Pb and Lu-Hf isotopic data to reveal the evolution of the Qiangtang terrane and the tectonic affinity of its subterranes. The detrital zircons from the North Qiangtang subterranes were likely derived from arc magmatic rocks associated with the subduction of the Paleo-Tethys oceanic lithosphere, while those from the South Qiangtang subterranes show similarities with other terranes such as South Qiangtang, Lhasa, Himalaya, and the Indian Gondwana. The North and South Qiangtang subterranes originated from the Yangtze block and Gondwana, respectively, and the northward subduction of the Paleo-Tethys oceanic lithosphere continued at least until the Late Devonian to Triassic.
JOURNAL OF ASIAN EARTH SCIENCES
(2022)
Article
Geography, Physical
Jian-Jun Fan, Yaoling Niu, An-Bo Luo, Chao-Ming Xie, Yu-Jie Hao, Hai-Yong Liu
Summary: This study examines the timing of the opening of the Meso-Tethys Ocean by analyzing detrital zircons from Upper Carboniferous-Upper Permian strata on the Tibetan Plateau. The data suggests a significant change in sedimentary provenance around 280-260 million years ago, indicating the opening of the Meso-Tethys Ocean.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Shengqiang Zeng, Jian Wang, Xiugen Fu, Wenbin Chen, Chunyan Song, Xinglei Feng, Dong Wang
Summary: This study reports the sedimentary rock characteristics of the Lower Jurassic Quemo Co Formation in the northern Qiangtang Basin, with analyses of rock major-trace elemental compositions and detrital zircon geochronology to infer paleoenvironment, provenance, and tectonic setting. The results suggest that the mudstones were mainly derived from intermediate igneous rocks with subordinate felsic igneous rocks and the sediment source was likely a collision tectonic setting.
GEOLOGICAL JOURNAL
(2021)
Article
Geochemistry & Geophysics
Anlin Ma, Xiumian Hu, Eduardo Garzanti, Marcelle Boudagher-Fadel, Weiwei Xue, Zhong Han, Ping Wang
Summary: Reconstructing the Mesozoic paleotectonic and paleogeographic evolution of marine Qiangtang basins is essential for understanding the evolution of diverse Tethyan oceanic seaways and pre-Cenozoic mountain building in the Tibetan Plateau, with significant implications for hydrocarbon exploration. The geological knowledge of these basins is, however, largely incomplete. This study provides new geological mapping, stratigraphic, structural, sedimentological, and provenance data to fill the gaps in understanding the evolution of Qiangtang basins.
Article
Geosciences, Multidisciplinary
Qing Wang, Di-Cheng Zhu, Peter A. Cawood, Sun-Lin Chung, Zhi-Dan Zhao
Summary: By analyzing the detrital zircon U-Pb age spectra and epsilon(Hf)(t) values of the glaciogenic diamictites (PCGDs) in different regions, it is found that the PCGDs in Lhasa have a different source from those in Southern Qiangtang and Tethyan Himalaya. The research suggests that the Lhasa PCGDs may have originated from Australia, while the PCGDs in Southern Qiangtang and Tethyan Himalaya may have come from India.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Geosciences, Multidisciplinary
Xiugen Fu, Jian Wang, Hengye Wei, Xinglei Feng, Shengqiang Zeng, Yuhong Zeng, Ying Nie
Summary: This article reports new zircon U-Pb ages of the Devonian-Permian sedimentary rocks in the central Qiangtang, revealing changes in sedimentary provenances over time. The study found that the Devonian and Carboniferous strata in the Qiangtang terrane have similar age spectra, indicating a Gondwana affinity. The research also provides insights into the uplift process of the Central Uplift in the Qiangtang terrane.
JOURNAL OF ASIAN EARTH SCIENCES
(2022)
Article
Geosciences, Multidisciplinary
Fukun Chen, Guang-Hui Wu, Hu Nie, Song He, Xi-Guang Huang
Summary: The Baoshan Block in western Yunnan is a major micro-continent in the eastern Tethyan orogenic belt. The Paleozoic sedimentary rocks from this block show a provenance mainly sourced from a continental terrane similar to the Indian craton. The lack of significant inputs of juvenile crust in the Paleozoic Nd-Hf isotopic data suggests that the Baoshan Block may not have been in a magmatic arc setting during this time period.
PRECAMBRIAN RESEARCH
(2021)
Article
Geosciences, Multidisciplinary
Chang-Hao Xiao, Zheng-Le Chen, Feng-Bin Han, Liang-Xi Wei, Liang-Tao Ma
Summary: This study presents U-Pb ages and Hf isotopic compositions of detrital zircons from a pebbly slate of clastic sedimentary rock in the West Qinling Orogenic Belt, providing insights into the Triassic tectonic setting in the region. Provenance analysis suggests multiple sources for the pebble-bearing slate, and the presence of an Early Triassic continental arc is implied by detrital zircon data. The integrated results indicate that the Longwuhe Formation was likely deposited in a forearc setting around 250 Ma, followed by arc magma intrusion in the Early Triassic, possibly associated with the northward subduction of the Qinling Paleo-Tethys Ocean lithosphere.
JOURNAL OF ASIAN EARTH SCIENCES
(2022)
Article
Geosciences, Multidisciplinary
Zhongwei Wang, Wangzhong Zhan, Jian Wang, Qinghua Peng, Wei Wei, Duo Wang, Qilin Ma, Chunyan Song, Xinglei Feng
Summary: By synthesizing petrographic, mineralogical, geochemical, and detrital zircon U-Pb age data, the chemical weathering history, provenance, and tectonic setting of the Late Triassic Qiangtang Basin were constrained, providing insights into its tectonic evolution.
Article
Geosciences, Multidisciplinary
Linwei Shen, Jin-Hai Yu, W. L. Griffin
Summary: Systematic detrital zircon U-Pb dating of Cambrian to Triassic sedimentary rocks in the Yong'an basin, southeastern South China, revealed four age groups indicating different provenance and tectonic events. Multiple orogenic events in the South China Block have influenced the clastic provenance of the sedimentary rocks, with late Paleozoic orogenesis potentially having a wider impact than previously thought. The uplift of the Wuyi Mountains likely began earlier than previously proposed, providing long-term clastic supply to the Yong'an basin and nearby basins.
JOURNAL OF ASIAN EARTH SCIENCES
(2021)
Article
Geochemistry & Geophysics
Ding-Jun Wen, Xiumian Hu, Timothy Chapman, Gang Zeng, An-Lin Ma, Rui-Qiang Wang
Summary: Based on the analysis of rock elements and isotopic data of the Duoma volcanic rocks in the central Tibet's southern Qiangtang region, the researchers found that these volcanic rocks have different origins and sources. The basalts may have originated from the partial melting of garnet clinopyroxenite, while the rhyolites may have come from the partial melting of the lower continental crust. This indicates that the formation of Late Cretaceous volcanism may be related to lithospheric delamination beneath the southern Qiangtang region.
Article
Geosciences, Multidisciplinary
A. S. Tabaud, P. Stipska, S. Mazur, K. Schulmann, J. Mikova, J. Wong, M. Sun
Summary: The study of rocks samples from GSM in Poland, using geochemistry and isotopic data, revealed the origin and geological evolution of sedimentary rocks in the area, suggesting that it may have been located along the northern periphery of the Gondwana margin, forming in the middle to late Cambrian period.
Article
Geochemistry & Geophysics
Anlin Ma, Xiumian Hu, Eduardo Garzanti, Alex Pullen, Marcelle BouDagher-Fadel, Xinkai Ji, Jiangang Wang, Wen Lai, Weiwei Xue
Summary: Metamorphic rocks in central Tibet provide insights into the geological evolution of the Central Qiangtang Mountain Range. A detailed study of the Shuanghu Conglomerate and the Abushan Formation reveals a mid-Cretaceous depositional age and the exhumation of the Qiangtang metamorphic belt. The evolution of sedimentology and provenance suggests that the exhumation occurred primarily by tectonic extension after the end of a long period of convergence.
Article
Geochemistry & Geophysics
Guang-Hui Wu, Xu Chu, Ming Tang, Weiyong Li, Fukun Chen
Summary: In this study, the differences in orogenic petrological processes between the amalgamation of Rodinia and Gondwana are explored using the time sequence analysis of geochemical proxies in detrital zircons. The results suggest that the Rodinia assembly was dominated by non-arc intraplate magmatism, while the orogenies leading to the assembly of Gondwana may have proceeded in a modern-style plate tectonic manner. These differences in petrological processes might have contributed to the contrasting geochemical and biological evolution following the orogenies.
EARTH AND PLANETARY SCIENCE LETTERS
(2023)