Abstract
The Jinniu Basin in southeast Hubei, located at the westernmost part of middle-lower valley of the Yangtze River, is one of the important volcanic basins in East China. Volcanic rocks in the Jinniu Basin are distributed mainly in the Majiashan Formation, the Lingxiang Formation and the Dasi Formation, consisting of rhyolite, basalt and basaltic andesite, (trachy)-basalt and basaltic trachy-andesite and (trachy)-andesite and (trachy)-dacite and rhyolite respectively, in which the Dasi volcanism is volumetrically dominant and widespread. The Dasi volcanic rocks were selected for SHRIMP zircon U-Pb dating to confirm the timing of volcanism. The results indicate that there exist a large amount of magmatic zircons characterized by high U and Th contents in the volcanic rocks. The concordia ages for 13 points are 128 ± 1Ma (MSWD = 3.0). On account of the shape of zircons and Th/U ratios, this age is considered to represent the crystallization time of the Dasi volcanism. The volcanic rocks in the Dasi, Majiashan and Lingxiang Formations share similar trace element and REE partition patterns as well as Sr-Nd isotopic compositions. In combination with the regional geology, it is proposed that the southeast Hubei volcanic rocks were formed mainly during the Early Cretaceous, just like other volcanic basins in middle-lower Yangtze valley. A lithospheric extension is also suggested for tectonic regime in this region in the Cretaceous Period.
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Pan Y, Dong P. The Lower Changjiang (Yangzi/Yangtze River) metallogenic belt, east China: intrusion-and wall rock-hosted Cu-Fe-Au, Mo, Zn, Pb, Ag deposits. Ore Geol Rev, 1999, 15: 177–242
Ni R S, Wu J C, Yue W Z, et al. Terrestrial Basin Evolution and Metallogeny in the Lower Reaches of Yangtze River Belt (in Chinese). Shanghai: Shanghai Science Technology Reference Press, 1998. 118
Deng J F, Ye D L, Zhao H L, et al. Volcanism, Deep Internal Processes and Basin Formation in the Lower Reaches of Yangtze River (in Chinese with English abstract). Wuhan: China University of Geosciences Press, 1992. 184
Zhang R H, Hu S M, Wang J, et al. Water-rock Interaction in the Lower Reaches of Yangtze River (in Chinese). Beijing: China Land Publishing House, 2002. 175
Xie G Q, Mao J W, Hu R Z. Geodynamics of large-scale ore clusters in the Middle-Lower Yangtze River metallogenic belts (in Chinese). Bull Miner Petrol Geochem, 2004, 23(Suppl): 82–83
Li S G, Yang W. Decoupling of surface and subsurface sutures in the Dabie orogen and a continent-collisional lithospheric-wedging model: Sr-Nd-Pb isotopic evidences of Mesozoic igneous rocks in eastern China. Chin Sci Bull, 2003, 48(8): 831–838
Bureau of Geology and Mineral Resources of Hubei province. Regional Geology of Hebei Province (in Chinese with English abstract). Beijing: Geological Publishing House, 1990. 705
Chang Y F, Liu X P, Wu C Y. The Copper-Iron Belt of the Lower and Middle Reaches of the Changjiang River (in Chinese with English abstract). Beijing: Geological Publishing House, 1991. 363
Zhai Y S, Yao S Z, Lin X D, et al. Fe-Cu (Au) Metallogeny of the Middle-Lower Changjiang Region (in Chinese). Beijing: Geological Publishing House, 1992. 235
Pei R F, Hong D W. The granites of South China and their metallogeny. Episodes, 1995, 18:77–86
Zhai Y S, Xiong Y Y, Yao S Z, et al. Metallogeny of copper and iron deposits in the Eastern Yangtze Carton, east-central China. Ore Geol Rev, 1996, 11: 229–248
Tang Y C, Wu C Y, Chu G Z, et al. Geology of Copper-Gold Polymetallic Deposits in the Along Changjiang Area of Anhui Province (in Chinese with English abstract). Beijing: Geological Publishing House, 1998. 243
Zhang Q, Jian P, Liu D Y, et al. SHRIMP dating of volcanic rocks from Ningwu area and its geological implications. Sci China Ser D-Earth Sci, 2003, 46: 830–837
Le Maitre R W, Bateman P, Dudek A, et al. A Classification of Igneous Rocks and Glossary of Terms. Oxford: Blackwell Scientific Publications, 1989. 193
Irvine T N, Baragar W R A. A guide to the chemical classification of the common volcanic rocks. Can J Earth Sci, 1971, 8: 523–548
Sun S S, McDonough W F. Chemical and isotopic systematic basalt, implication for mantle composition and processes. Geological Society, Special Publication, 1989, 42: 313–345
Compston W, Williams L S, Kirschvink J L, et al. Zircon U-Pb ages of early Cambrian time-scale. J Geol Soc London, 149: 171–184
Belousova E A, Griffin W L, O’Reilly S Y, et al. Igneous zircon: trace element composition as an indicator of source rock type. Contrib Mineral Petrol, 2002, 143: 602–622
Hoskin P W O, Black L P. Metamorphic zircon formation by solid-state recrystallization of protolith igneous zircon. J Metamorph Geol, 2000, 18: 423–439
Chow S S. Stratigraphy and tectonic characteristics (in Chinese with English abstract). Acta Geol Sin, 1956, 36: 33–52
Gang S Z, Yang Z, Xue G W, et al. Time of the Lingxiang Formation of Southeast Hubei and on the Jurassic and Cretaceous boundary (in Chinese). Acta Geol Sin, 1984, 33:18–25
Shu Q A, Chen P L, Cheng J R. Geology of Iron-Copper Deposits in Eastern Hubei Province, China (in Chinese). Beijing: Ministry of Metallurgical Industry Publishing House, 1992. 532
Cheng W Y, Jing J W, et al. Petrologic Stratigraphy in Hubei Province (in Chinese). Wuhan: China University of Geosciences Press, 1996. 284
Gradstein F M, Ogg J G, Smith A G, et al. A new geologic time scale, with special reference to Precambrian to Neogene. Episodes, 2004, 27:83–100
Chen J F, Yan J, Xie Z, et al. Nd and Sr isotopic compositions of igneous rocks from the Lower Yangtze region in eastern China: constraints on sources. Phys Chem Earth (A), 2001, 26: 719–731
Wang Q, Zhao Z H, Xu J F, et al. Petrogenesis and metallogenesis of the Yanshanian adakite-like rocks in the Eastern Yangtze Block. Sci China Ser D-Earth Sci, 2003, 46(Supp): 164–176
Xie G Q, Mao J W, Zhao C S. Mineralizing pulses and geodynamic setting of Cu-Fe-Au polymetallic deposits in the Lower Yangtze valley, east-central China. In: Mao J W, Bierlein F P, eds. Mineral Deposit Research: Meeting the Global Challenge. Berlin-Heidelberg-New York: Springer, 2005.1201–1204
Zhao Z F, Zheng Y F, Wei C S, et al. Temporal relationship between granite cooling and hydrothermal uranium mineralization at Dalongshan in China: a combined radiometric and oxygen isotopic study. Ore Geol Rev, 2004, 25: 221–236
Wang Y, Deng J F, Ji G Y. A perspective on the geotectonic setting of early Cretaceous adakite-like rocks in the Lower Reaches of Yangtze River and its significance for copper-gold mineralization. Acta Petrol Sin (in Chinese with English abstract), 2004, 20: 297–314
Ames L, Tilton G R, Zhou G. Timing of collision of the Sino-Korean and Yangtse cratons: U-Pb zircon dating of coesite-bearing eclogites. Geology, 1993, 21: 339–342
Zheng Y-F, Fu B, Gong B, et al. Stable isotope geochemistry of ultrahigh pressure metamorphic rocks from the Dabie-Sulu orogen in China: Implications for geodynamics and fluid regime. Earth Sci Rev, 2003, 62: 105–161
Ren J S, Niu B G, He Z J, et al. Tectonic framework and geodynamics evolution of eastern China. In: Ren J S, Yang W Y, eds. Composition, Structure, Evolution and Environment of Continental Lithosphere of China (in Chinese with English abstract). Beijing: Atomic Energy Press, 1998. 1–12
Mao J W, Xie G Q, Zhang Z H, et al. Mesozoic large scale metallogenic pulses in North China and corresponding geodynamic settings (in Chinese with English abstract). Acta Petrol Sin, 2005, 21: 169–188
Ma C Q, Yang K G, Ming H L, et al. Time of compression to extension of Mesozoic crust in Dabieshan: evidences from granite (in Chinese). Sci China Ser D-Earth Sci, 2003, 33: 817–827
Zhao Z F, Zheng Y F, Wei C S, et al. Zircon isotope evidence for recycling of subducted continental crust in post-collisional granitoids from the Dabie terrane in China. Geophys Res Lett, 2004, 31, L22602, doi: 10.1029/2004 GL021061
Zhao Z F, Zheng Y F, Wei C S, et al. Zircon U-Pb age, element and C-O isotope geochemistry of post-collisional mafic-ultramafic rocks from the Dabie orogen in east-central China. Lithos, 2005, 83: 1–28
Tsai C H, Lo C H, Liou J G, et al. Evidence against subduction-related magmatism for the Jiaoziyan gabbro, northern Dabieshan, China. Geology, 2000, 28: 943–946
Wu F Y, Lin J Q, Wilde S A, et al. Nature and significance of the Early Cretaceous giant igneous event in eastern China. Earth Planet Sci Lett, 2005, 233: 103–119
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Xie, G., Mao, J., Li, R. et al. SHRIMP zircon U-Pb dating for volcanic rocks of the Dasi Formation in southeast Hubei Province, middle-lower reaches of the Yangtze River and its implications. CHINESE SCI BULL 51, 3000–3009 (2006). https://doi.org/10.1007/s11434-006-2187-9
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DOI: https://doi.org/10.1007/s11434-006-2187-9