气候变化领域集成服务门户(CCPortal): The formation of the granite complex in the Wuhe Mari area of Bayankala Mountain on the northeastern margin of the Tibetan Plateau: constraints from lithogeochemistry and U-Pb zircon dating

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DOI	10.1007/s42452-024-05924-z
	The formation of the granite complex in the Wuhe Mari area of Bayankala Mountain on the northeastern margin of the Tibetan Plateau: constraints from lithogeochemistry and U-Pb zircon dating
	Tian, Guanghao; Zong, Yanbing; Xue, Yanping
发表日期	2024
EISSN	3004-9261
起始页码	6
结束页码	5
卷号	6 期号:5
英文摘要	The granite complex in the Wuhe Mari area lies in the tectonic magma belt of the North Bayankala Mountains on the northeastern edge of the Qinghai-Tibet Plateau. It is located in the middle of the first member of the Changmahe Formation of the Early and Middle Triassic Bayankala Mountains Group. This article presents a systematic study of the petrological and geochemical characteristics and chronology of porphyrite granilite, monzogranite, porphyritic monzogranite and diorite in the granite complex in Wuhe Mari area. The genetic relationship between these four rock types as well as the type of source area and tectonic environment are clarified. Zircon LA-ICP-MS-U-Pb dating shows that the porphyritic granodiorite, monzogranite, porphyritic monzogranite and diorite have ages of 221.0 +/- 2.7 Ma, 219.8 +/- 3.0 Ma, 216.6 +/- 4.3 Ma and 213.4 +/- 1.6 Ma, respectively. The petrogeochemical characteristics show that the porphyritic granodiorite, monzogranite and porphyritic monzogranite in the granite complex have the characteristics of high Si, Al2O3, K, low Na, Ca, Mg, Fe, K, Rb and Th-Content in the strongly incompatible elements of the granite complex have three, the relative loss of Ba, Ta, Nb, Ce, slight enrichment or no anomaly, the loss of Sm, Hf and Zr, the strong loss of Y and Yb and the aluminum saturation index < 1.1. Combined with the geological data all three samples belong to Type I granite formed in the same collision environment. Based on the lithogeochemical characteristics and the results of U-Pb chronology, these three rock formations are believed to have been formed by a series of magmatic melting events and are the result of homologous magma crystallization and differentiation. The diorite forms in an intraplate tectonic setting as a result of the evolution of co-collision granite to intraplate granite.
英文关键词	Cause; U-Pb zircon dating; Geochemical features; Wuhe Mari granite; Bayankala area
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:001221701500006
来源期刊	DISCOVER APPLIED SCIENCES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/304451
作者单位	University of Science & Technology Beijing
推荐引用方式 GB/T 7714	Tian, Guanghao,Zong, Yanbing,Xue, Yanping. The formation of the granite complex in the Wuhe Mari area of Bayankala Mountain on the northeastern margin of the Tibetan Plateau: constraints from lithogeochemistry and U-Pb zircon dating[J],2024,6(5).
APA	Tian, Guanghao,Zong, Yanbing,&Xue, Yanping.(2024).The formation of the granite complex in the Wuhe Mari area of Bayankala Mountain on the northeastern margin of the Tibetan Plateau: constraints from lithogeochemistry and U-Pb zircon dating.DISCOVER APPLIED SCIENCES,6(5).
MLA	Tian, Guanghao,et al."The formation of the granite complex in the Wuhe Mari area of Bayankala Mountain on the northeastern margin of the Tibetan Plateau: constraints from lithogeochemistry and U-Pb zircon dating".DISCOVER APPLIED SCIENCES 6.5(2024).