Geochronology of Mesozoic volcanic rocks in Shandong province

	Geochronology of Mesozoic volcanic rocks in Shandong province
	Tang JiaFeng 1; Liu YuLin 1; Wang QiFei 2
刊名	ACTA PETROLOGICA SINICA
	2008-06-01
卷号	24 期号:6 页码:1333-1338
关键词	Shandong Mesozoic volcanic rocks geochronology
ISSN号	1000-0569
英文摘要	Geochronology of Mesozoic volcanic rocks in Shandong province has direct connections with many major geological events in eastern China. In this study, volcanic rocks used for K-Ar dating are systematically sampled from four formations of Qingshan Group in the standard section of Jiaolai basin, and from Tianjialou Formation of Dasheng Group in Anqiu, as well as from Zibo, Mengyin and Juxian area. K-Ar dating of volcanic rock samples from Qingshan group shows that the age of this group ranges from 118Ma to 93Ma, corresponding middle to upper Cretaceous, and the ages of the four formations in this group are as follows: Houkuang Formation started from about 117Ma, belonging to Aputian; Bamudi Formation 109 similar to 103Ma, belonging to Albian; Shiqianzhuang Formation 103.7 similar to 93.3Ma, seated at upper Albian to Cenomanian, its bottom is about the top of Bamudi Formation, probably no discontinuity between the two formations; and Fanggezhuang Formation started from 93.3Ma, belonging to upper Cretaceous Turonian. Although difference has been existed, the age of Bamudi Formation vocanic rock in eastern Shandong Province is about the same of that in western Shandong Province. The age of lower Tianjialou Formation in Dasheng Group is similar to 95Ma, corresponding to upper Shiqianzhuang Formation of Qinshan Group, indicating that the two groups are crossed-correpondence. Volcanic rocks of Fangzi Formation of Zibo Group have early Cretaceous ages (107.7Ma and 120.1Ma), indicating that Jurassic volcanic rocks may be absent in Shandong.
WOS关键词	NORTH CHINA CRATON
WOS研究方向	Geology
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000259628800016
内容类型	期刊论文
源URL	[http://ir.nigpas.ac.cn/handle/332004/22170]
专题	中国科学院南京地质古生物研究所
通讯作者	Tang JiaFeng
作者单位	1.Peking Univ, Sch Earth & Space Sci, Key Lab Orogen Belts & Crustal Evolut, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Nanjing Inst Geol Palaeontol, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Tang JiaFeng,Liu YuLin,Wang QiFei. Geochronology of Mesozoic volcanic rocks in Shandong province[J]. ACTA PETROLOGICA SINICA,2008,24(6):1333-1338.
APA	Tang JiaFeng,Liu YuLin,&Wang QiFei.(2008).Geochronology of Mesozoic volcanic rocks in Shandong province.ACTA PETROLOGICA SINICA,24(6),1333-1338.
MLA	Tang JiaFeng,et al."Geochronology of Mesozoic volcanic rocks in Shandong province".ACTA PETROLOGICA SINICA 24.6(2008):1333-1338.