Geochronology and geological event sequences of Hengshan-Wutai precambrian complex

doi:10.1007/s00203-006-0112-x

CORC > 北京大学 > 地球与空间科学学院

	Geochronology and geological event sequences of Hengshan-Wutai precambrian complex
	Niu, Xianglong ; Li, Jianghai
刊名	北京大学学报自然科学版
	2006
DOI	10.1007/s00203-006-0112-x
英文摘要	Large amount of isotopic age data achieved in recent 10 years in Hengshan and Wutai Mt. show that the climax value of Hengshan complex's (2520 Ma) is 20Ma less than Wutai complex's (2540 Ma), which coincides with the opinion of Hengshan complex being the arc root of Wutai arc. Based on the comprehensive analysis of the various geological records, three evolution stages have been suggested, 2.70-2.60 Ga, the formation stage of the primary crust in Hengshan and Wutai areas, 2.60-2.52 Ga (not less than 2.45 Ga), the subduction and collision stage from the East to West Block and 2.50-1.75 Ga, the evolution stage of the early overlying strata. The last one is subdivided to five periods, which are: 1) 2.50-2.30 Ga, the continental plateau basalt eruption period; 2) 2.30-2.20 Ga, the stable subsidence period; 3) 2.20-2.10 Ga, the tectonic activation and the emplacement of anorgenic granite period; 4) 2.10-1.85 Ga, the mantle plume activation period; 5) 1.86-1.75 Ga, the emplacement of large scale basic dyke swarms and the decomposition of North China Craton (NCC) period.; EI; 0; 4; 439-445; 42
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/312263]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Niu, Xianglong,Li, Jianghai. Geochronology and geological event sequences of Hengshan-Wutai precambrian complex[J]. 北京大学学报自然科学版,2006.
APA	Niu, Xianglong,&Li, Jianghai.(2006).Geochronology and geological event sequences of Hengshan-Wutai precambrian complex.北京大学学报自然科学版.
MLA	Niu, Xianglong,et al."Geochronology and geological event sequences of Hengshan-Wutai precambrian complex".北京大学学报自然科学版 (2006).