Abstract
The Mazhuangshan area lies in northeast to Aqikekuduke, where are distributed intermediate-acid rocks, which were formed in the Middle-Late Carboniferous epoch. The magmatic rocks are peraluminous and belong to calcareous series. All values of ACNK(1.03–2.12), ANK (1.67–2.93), SI(4.1–33), δ(0.71–4.82), La/ΣREE(0.09–0.26) ΣLREE/ΣHREE(1.76–11.01), (La/Sm)N(l.60–6.35), (Sm/Nd)N(0.33–0.58), (La/Yb)N(4.7–12.1), LaN/LuX(5.9–11.8), (Ce/Yb)N(3.14–6.64), δEu(0.38–1.06), RbN/SrN(42–120) and Sr* (0.02–0.2) demonstrate they vary with D_ I(45–90). S-B diagram also shows that the lithophile elements are abundant in acidic magmatic rocks. Moreover, it is concluded that the primitive magma originated from a subduction zone at the continental edge, and underwent fractional crystallization and contamination, then generated the magmatic rocks. The multi-cation index (R1: 3055–3993, R2: 286–438) shows that the primitive magma originated from the mantle. All these conclusions are beneficial for exploring gold deposits in the area.
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References
Candela, P.A., 1997, A review of shallow, ore-related granites: textures, volatile, and ore metals: Journal of Petrology, v. 38, n. 12, p. 1619–1633.
Coleman, R.G., 1989, Continental growth of Northwest China: Tectonics, v. 8, p. 621–633.
Dickinson, W.R., 1993, Making composite continents: Nature, v. 364, p. 284–285.
Hedenquist, J. W. and J. B. Lowenstern, 1994, The role of magmas in the formation of hydrothermal ore deposits: Nature, v. 370, n. 6490, p. 519–527.
Hu Aiqin, Zhang Zhengen, Liu Juying, and Peng Jianhua, 1986, U-Pb age and evolution of Precambrian metamorphic rocks of the Middle Tianshan uplift zone, eastern Tianshan, China: Geochimica, v. 10, n. 3, p. 23–35 (in Chinese with English abstract).
Li Huaqin, Chen Fuwen, Cai Hong, and Liu Houqun, 1999, Study on the isotopic chronology of gold mineralization at Mazhuangshan, eastern Xinjiang: Scientia Geologica Sinica, v. 34, p. 251–256 (in Chinese with English abstract).
Pen Xiangpin and Bai Yunshan, 1998, New advances in research on the Carboniferous in the Poziquan area of Hami: Xinjiang Geology, v. 16, n. 3, p. 212–220 (in Chinese with English abstract).
Sengor, A. M.C., B.A. Natal’in, and V.S. Burtman, 1993, Evolution of the Altay tectonic collage and Paleozoic crustal growth in Eurasia: Nature, v. 364, p. 299–307.
Sivell, W.J. and J.B. Waterhouse, 1988, Petrogenesis of the Gympie Group volcanics, evidence for remnants of an Early Permian volcanic arc in eastern Australia: Lithos, v. 21, p. 81–95.
Takehiro, K. and K. Katsuva, 1999, A two-stage thermal evolution model of magmas in the continental crust: Journal of Petrology, v. 40, n. 2, p. 241–254.
Windley, B.F. and M. B. Allen, 1990, Paleozoic accretion and Cenozoic redeformation of the Chinese Tianshan Range, central Asia: Geology, v. 18, p. 128–131.
Zhi Qihan, Zhu Guchang, Zhang Yuanfei, and Zheng Xianhua, 1990, Comprehensive processing and analysis of multi-source geoscientific data of gold deposits in the Mazhuangshan region, East Xinjiang: Xinjiang Geology, n. 1, p. 120–126 (in Chinese with English abstract).
Zhou Jiyuan, Chen Jianman, Cui Bingfang, Xiao Huiliang, and Chen Shizhong, 1999, The Early Carboniferous volcanic rocks and their geochemical features in the Mazhuangshan goldfield in Hami, Xinjiang: Volcanology and Mineral Resources, v. 20, n. 1, p. 14–22 (in Chinese with English abstract).
Zhou Jiyuan, Zeng Changhua, Cui Bingfang, Xiao Huiliang, and Chen Shizhong, 1998, The subvolcanic rocks and their geochemical features in the Mazhuangshan gold field in Hami, Xinjiang: Volcanology and Mineral Resources, v. 19, n. 2, p. 93–104 (in Chinese with English abstract).
Zhou Jiyuan, Zhang Bin, and Zhang Chaowen, 1996, Geology of the silver, rhenium-molybdenum, gold and copper deposits in eastern Tianshan and its adjacent regions: Beijing, Geological Publishing House, p. 63–64 (in Chinese).
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Chen, S., Zhou, J., Gu, L. et al. Characteristics of magmatic rocks and tectonic setting of Mazhuangshan area, East Tianshan, China. Chin. J. of Geochem. 19, 261 (2000). https://doi.org/10.1007/BF03166885
DOI: https://doi.org/10.1007/BF03166885