Abstract
The tectonic and geochemical characteristics suggest that the plagiogranites exposed in the vicinity of Bingdaban on the northern margin of the central Tianshan uplift zone show a distinct mantle-source character, and their enrichment in LREE and selected enrichment in LILE (large ion lithophile elements) reflect a setting related to an arc tectonic regime. These rocks represent the products formed at shallow levels from mantle-derived magmas modified with subduction components (or super crustal rocks).
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References
Barker, F., 1979, Trondhjemite: definition, environment and hypotheses of origin, in F.Barker, ed., Trondhjemite, dacites and related rocks: Elsevier, p.1-12.
Barker, F. and J.G. Arth, 1976, Generation of trondhjemitic-tonalitic liquids and Archean bimodal trondhjemitebasalt suites: Geology, v. 4, p. 596–600.
Chappell, B.W. and A.J.R. White, 1974, Two contrasting granite types: Pacific Geology, v. 8, p. 173–174.
Cullers, R.L. and J.L.Graf, 1984, Rare-earth elements in igneous rocks of the continental crust, intermediate and silicic rocks—ore petrogenesis, in Henderson, ed., Rare-earth element geochemistry: Elsevier, p.275-316.
Didier, J., J. Duthon, and J. Lameyre, 1982, Mantle and crustal granites: genetic classification of orogenic granites and the nature of their enclaves: J. Volcanol and Geotherm. Res., v. 14, p. 125–135.
Harris, N.B.W., J.A. Pearce, and A.G. Tindle, 1990, Geochemistry of magmatism in collision belt, in M.P. Cowaard and A.C. Ries, ed., Collision Tectonics: Beijing, Geology Press, p. 17–30.
Lihovich, V.V., 1988, Mantle granitoid rock, Izv. Akad. Nauk. SSSR: Ser. Geol., n.12, p.3-17(in Russian).
Liu Liang, Wang Runsan, Yan Jincai et al., 1991, The petrogeochemical characteristics of the Bingdaban series of metamorphic rocks in central Tianshan: Journal of Northwest University, v. 21(special issue), p. 171–180(in Chinese).
Lu Xinxiang, 1988, Geochemistry of M-type granites in ophiolite suites in eastern Qinling orogenic belt, in Zhang Guowei, ed., Formation and evolution of the Qinling orogenic belt: Xi’an, Northwest University Press, p. 149–162(in Chinese).
Pearce, J.A., N.B.W. Harris, and A.G. Tindle, 1984, Trace element discrimination diagram for the tectonic interpretation of granitic rocks: J. Petrol., v. 25, p. 956–983.
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This project was financially supported by the National Natural Science Foundation of China.
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Liang, L., Zicheng, C. & Yangjie, L. Geochemical characteristics of the plagiogranites in the vicinity of Bingdaban, central Tianshan. Chin. J. of Geochem. 14, 243–249 (1995). https://doi.org/10.1007/BF02842047
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DOI: https://doi.org/10.1007/BF02842047