Abstract
A suite of sedimentary-volcaniclastic rocks intercalated with the volcanic rocks unconformably overlies the Triassic Xiaochaka Formation in the Woruo Mountain region, Qiangtang Basin, northern Tibet. The vitric tuff from the base of these strata gives a SHRIMP zircon U-Pb age of 216 ± 4.5 Ma, which represents the age of the Late Triassic volcanic-sedimentary events in the Woruo Mountain region, and is consistent with that of the formation of the volcanic rocks from the Nadi Kangri Formation in the Nadigangri-Shishui River zone. There is a striking similarity in geochemical signatures of the volcanic rocks from the Woruo Mountain region and its adjacent Nadigangri-Shishui River zone, indicating that all the volcanic rocks from the Qiangtang region might have the same magmatic source and similar tectonic setting during the Late Triassic. The proper recognition of the Late Triassic large-scale volcanic eruption and volcanic-sedimentary events has important implications for the interpretation of the Late Triassic biotic extinction, climatic changes and regressive events in the eastern Tethyan domain, as well as the understanding of the initiation and nature, and sedimentary features of the Qiangtang Basin during the Late Triassic-Jurassic.
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References
Bureau of Geological and Mineral Resources of Xizang Autonomous Region. Regional Geology of Xizang (Tibet) Autonomous Region, geologia memoirs series 1, No. 31 (in Chinese). Beijing: Geological Publishing House, 1993. 178–194
Wang C S, Yin H S, Li Y, et al. The Geological Evolution and Prospective Oil and Gas Assessment of the Qiangtang Basin in Northern Tibetan Plateau (in Chinese). Beijing: Geological Publishing House, 2001. 86–128
Li Y, Wang C S, Yin H S. Tectonic sequence and fill models of Late Triassic northern Qiangtang foreland Basin in Xizang, China. Geosciences (in Chinese with English abstract), 2002, 37(1): 27–37
Zhu T X, Dong H, Li C, et al. Distribution and sedimentary model of the Late Triassic strata in northern Qiangtang on the Qinghai-Xizang Plateau. Sediment Geol Tethyan Geol (in Chinese with English abstract), 2005, 25(3): 18–23
Wang J, Fu X G, Chen W X, et al. The Late Triassic paleo-weathering crust in the Qiangtang Basin, northern Tibet: Geology, geochemistry and significance. Acta Sediment Sin (in Chinese with English abstract), 2007, 25(4): 487–494
Fu X G, Wang J, Wang Z J, et al. Identification and sedimentary gap between the Late Triassic Nadi Kangri formation and its underlying strata in the Qiangtang Basin, northern Xizang (Tibet) and its geological significance. Geol Rev (in Chinese with English abstract), 2007, 53(3): 329–336
Zhao Z Z, Li Y T, Ye H F, et al. Tectonic Characteristics and Basin Evolution of the Tibet Plateau (in Chinese). Beijing: Science Press, 2001. 23–25
Wang J, Tan F W, Li Y L, et al. The Potential of the Oil and Gas Resources in Major Sedimentary Basins on the Qinghai-Xizang Plateau (in Chinese). Beijing: Geological Publishing House, 2004. 34–88
Li C, Zhai Q G, Dong Y S, et al. Lungmu Co-Shuanghu plate suture in the Qinghai-Xizang Plateau and records of the evolution of the paleo-Tethys ocean in the Qiangtang area, Tibet, China. Geol Bull China (in Chinese with English abstract), 2007, 26(1): 13–21
Wang J, Wang Z J, Chen W X, et al. New evidences for the age assignment of the Nadi Kangri Formation in the North Qiangtang depression, northern Tibet, China. Geol Bull China (in Chinese with English abstract), 2007, 26(4): 404–409
Li Y T, Luo J N, Lu H N, et al. Strata of the Tibet Plateau (in Chinese). Beijing: Science Press, 2001. 10–30
Zhao Z Z, Li Y T, Ye H F, et al. Strata of the Tibet Plateau (in Chinese). Beijing: Science Press, 2001. 125–139, 439
Li Y, Wang C S, Yin H S. Filled sequence and evolution of the Mesozoic Qiangtang composite foreland basin in the Qinghai-Xizang Plateau. J Stratigr (in Chinese with English abstract), 2002, 26(1): 62–68
Wang J, Tan F W, Wang X L, et al. The sedimentary and tectonic characteristics of Qiangtang Basin in the Early Jurassic, in Northern Xizang (Tibet). Acta Sediment Sin (in Chinese with English abstract), 2004, 22(2): 198–205
Song B, Zhang Y H, Wan Y S, et al. Mount making and procedure the SHRIMP Dating. Geol Rev (in Chinese with English abstract), 2002, 48(Suppl): 26–30
Compston W, Williams I S, Kirschvink J L, et al. The U-Pb ages of zircon of the Early Cambrian. J Geol Soc, 1992, 149: 171–184
Compston W, Williams I S, Mayer C. The U-Pb geochronology of zircons from lunar breccias 73217 using a Sensitive High Resolution Ion Microprobe. Proc. XIV Lunar Planetary Science Conference. J Geophys Res, 1984, 89(Suppl): 525–534
Chen F, Siebel W, Satir M, et al. Geochronology of the Karadere basement (NW Turkey) and implications for the geological evolution of the Istanbul zone. Int J Earth Sci, 2002, 91: 469–481
Hildreth W, Hallidy A N, Christiansen R L. The isotopic and chemical evidence concerning the genesis and contamination of basaltic and rhyolitic magma beneath the Yellowstone Plateau of volcanic field. J Petrol, 1991, 32(1): 63–138
Haskin M A, Haskin L A. Rare earths in European shales: A redetermination. Science, 1966, 154: 507–509
Pearce J L A, Harris B W, Tindle A G. Diagrams of trace element discrimination for the tectonic interpretation of granitic rocks. J Petrol, 1984, 4: 956–983
Li Z C, Lu Y F, Huang G C. Geology Method and Progress of Radioactive Isotope (in Chinese). Wuhan: China University of Geosciences Press, 2004. 116
Zhu B Q. Isotope System Theory and Application to the Earth Science-on Crust-mantle Evolution of Continent of China (in Chinese). Beijing: Science Press, 1998. 226
Ma L Y, Bai Y S, Niu Z J, et al. Sr and Nd isotope geochemistry of Late Triassic volcanic rocks at Geladaindong in the source region of the Yangtze River and its significance. Geol China (in Chinese with English abstract), 2004, 31(2): 174–178
Yin J R. Rhaetian and Hettangian ammonoid assemblages from the Tibetan Himalayas and their Pan-Tethyan correlation. Acta Geol Sin (in Chinese with English abstract), 2005, 79(5): 277–587
Yin J R, Cai H W, Zhou Z G, et al. Study of marine Triassic/Jurassic boundary stratigraphy and the latest Triassic mass extinction in Tibet. Earth Sci Front (in Chinese with English abstract), 2006, 13(4): 244–254
Gao C W, Jia Q J, Wei C G. Study on the nature of Late Triassic prototype basin of Qiangtang Basin. Geol Rev (in Chinese with English abstract), 2006, 52(2): 198–206
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Supported by the National Oil and Gas Special Project(Keyou [2006] No.2)”and the National Natural Science Foundation of China (Grant No. 40472070)
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Wang, J., Fu, X., Chen, W. et al. Chronology and geochemistry of the volcanic rocks in Woruo Mountain region, northern Qiangtang depression: Implications to the Late Triassic volcanic-sedimentary events. Sci. China Ser. D-Earth Sci. 51, 194–205 (2008). https://doi.org/10.1007/s11430-008-0010-y
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DOI: https://doi.org/10.1007/s11430-008-0010-y