Paleomagnetism of Early Cretaceous volcanic rocks at Huangya section in Jiaodong Peninsula and implications for tectonics

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 岩石圈演化国家重点实验室

	Paleomagnetism of Early Cretaceous volcanic rocks at Huangya section in Jiaodong Peninsula and implications for tectonics
	Qin HuaFeng; Pan YongXin; He HuaiYu; Yang LieKun; Zhu RiXiang
刊名	ACTA PETROLOGICA SINICA
	2016
卷号	32 期号:10 页码:3205-3213
关键词	Paleomagnetism Early Cretaceous Jiaodong Peninsula Tectonic rotation
文献子类	Article
英文摘要	Rock magnetism and paleomagnetism study was conducted on 42 volcanic rock samples collected from 3 sites at Huangya section in Jiaodong Peninsula, Shandong Province in eastern China. Stepwise thermal demagnetization on 40 samples yielded stable characteristic remanent magnetization (ChRM) directions. Their overall average direction is D/I = 12.8 degrees/62.4 degrees (alpha(95) = 4.8 degrees) with a corresponding average virtual geomagnetic pole (VGP) at 76.7 degrees N and 162.6 degrees E (A(95) = 6.2 degrees). The Ar-40/Ar-39 age of HY3 is about between 115.3 +/- 1. 3Ma and 115.6 +/- 1. 6Ma (2 sigma). It indicates that the sampling area has no significant rotation and displacement relative to the North China Block (NCB) in the Early Cretaceous. When comparing to available paleomagnetic data of Late Mesozoic we found that Shandong and Liaoning regions from Late Jurassic to the end of Cretaceous shows similar pattern of declination variation with time. It suggests that that the tectonic activity in eastern NCB was likely affected by the subduction process of paleo-Pacific plate during Cretaceous time.
WOS关键词	TAN-LU FAULT ; NORTH CHINA CRATON ; NORMAL SUPERCHRON ; KOREAN PENINSULA ; CLOCKWISE ROTATIONS ; NORTHEASTERN CHINA ; GEOMAGNETIC-FIELD ; LIAONING PROVINCE ; EASTERN CHINA ; POLAR WANDER
WOS研究方向	Geology
语种	英语
WOS记录号	WOS:000388277000019
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/53246]
专题	地质与地球物理研究所_岩石圈演化国家重点实验室
作者单位	Chinese Acad Sci, Inst Geol & Geophys, Paleomagnetism & Geochronol Lab, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Qin HuaFeng,Pan YongXin,He HuaiYu,et al. Paleomagnetism of Early Cretaceous volcanic rocks at Huangya section in Jiaodong Peninsula and implications for tectonics[J]. ACTA PETROLOGICA SINICA,2016,32(10):3205-3213.
APA	Qin HuaFeng,Pan YongXin,He HuaiYu,Yang LieKun,&Zhu RiXiang.(2016).Paleomagnetism of Early Cretaceous volcanic rocks at Huangya section in Jiaodong Peninsula and implications for tectonics.ACTA PETROLOGICA SINICA,32(10),3205-3213.
MLA	Qin HuaFeng,et al."Paleomagnetism of Early Cretaceous volcanic rocks at Huangya section in Jiaodong Peninsula and implications for tectonics".ACTA PETROLOGICA SINICA 32.10(2016):3205-3213.