Curie Point Depths in North China Craton Based on Spectral Analysis of Magnetic Anomalies

doi:10.1007/s00024-016-1421-x

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 > 中国科学院油气资源研究重点实验室

	Curie Point Depths in North China Craton Based on Spectral Analysis of Magnetic Anomalies
	Xu, Ya 1,2; Hao, Tianyao 1; Zeyen, Hermann 2; Nan, Fangzhou 1
刊名	PURE AND APPLIED GEOPHYSICS
	2017
卷号	174 期号:1 页码:339-347
关键词	Curie Point Depth Magnetic Anomaly North China Craton
ISSN号	0033-4553
DOI	10.1007/s00024-016-1421-x
文献子类	Article
英文摘要	Magnetic anomaly analysis is an important method to study the structure of deep crust. With the assumption of random magnetization sources, the structure of a magnetic layer can be inverted via spectral analysis. Curie point depth (CPD), the depth at which rocks lose their ferromagnetic properties, is the bottom of a magnetic layer. In this study, we estimate from the magnetic anomaly data of EMAG2 dataset the CPD and the top of the magnetic layer in North China. With a moving window of 180 km x 180 km, we calculate the average top and centroid depth of the magnetic layer in each window and determine the regional CPD distribution across North China. The CPD of North China varies from 18 to 32 km. In addition, the CPD in the western part of the North China Craton is deeper than that in the eastern part. The shallowest CPD is located near the Bohai Sea. When compared to available heat flow data, the estimated CPD values are consistent with thermal conductivity of 1.8-3.2 Wm(-1) K-1 and on heat production value of 0.4-1.3 A mu Wm(-3).
WOS关键词	CRUSTAL STRUCTURE ; THERMAL STRUCTURE ; AEROMAGNETIC DATA ; EASTERN CHINA ; ADJACENT SEAS ; BENEATH ; ISLAND ; AREA ; CRATONIZATION ; TEMPERATURE
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	SPRINGER BASEL AG
WOS记录号	WOS:000391362100019
资助机构	National Natural Science Foundations of China(41210005 ; Youth Innovation Promotion Association of CAS(2016064) ; 41374139 ; 91428204) ; National Natural Science Foundations of China(41210005 ; Youth Innovation Promotion Association of CAS(2016064) ; 41374139 ; 91428204) ; National Natural Science Foundations of China(41210005 ; Youth Innovation Promotion Association of CAS(2016064) ; 41374139 ; 91428204) ; National Natural Science Foundations of China(41210005 ; Youth Innovation Promotion Association of CAS(2016064) ; 41374139 ; 91428204)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/44663]
专题	地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者	Xu, Ya
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China 2.Univ Pais Sud, CNRS, Dept Sci Terre, GEOPS UMR8148, Bat 504, F-91405 Orsay, France
推荐引用方式 GB/T 7714	Xu, Ya,Hao, Tianyao,Zeyen, Hermann,et al. Curie Point Depths in North China Craton Based on Spectral Analysis of Magnetic Anomalies[J]. PURE AND APPLIED GEOPHYSICS,2017,174(1):339-347.
APA	Xu, Ya,Hao, Tianyao,Zeyen, Hermann,&Nan, Fangzhou.(2017).Curie Point Depths in North China Craton Based on Spectral Analysis of Magnetic Anomalies.PURE AND APPLIED GEOPHYSICS,174(1),339-347.
MLA	Xu, Ya,et al."Curie Point Depths in North China Craton Based on Spectral Analysis of Magnetic Anomalies".PURE AND APPLIED GEOPHYSICS 174.1(2017):339-347.