Multi-protocol palaeointensity determination from middle Brunhes Chron volcanics, Datong Volcanic Province, China

doi:10.1016/j.pepi.2011.06.005

	Multi-protocol palaeointensity determination from middle Brunhes Chron volcanics, Datong Volcanic Province, China
	Muxworthy, Adrian R.1; Ji, Xinlin 2; Ridley, Victoria 1; Pan, Yongxin 2; Chang, Liao 3; Wang, Lei 2; Roberts, Andrew P.3
刊名	PHYSICS OF THE EARTH AND PLANETARY INTERIORS
	2011-08-01
卷号	187 期号:3-4 页码:188-198
关键词	Palaeointensity Thellier Wilson Multi-specimen Geomagnetic field behaviour
ISSN号	0031-9201
DOI	10.1016/j.pepi.2011.06.005
文献子类	Article
英文摘要	A full vector palaeomagnetic analysis of basalts from the Datong Volcanic Province, China, has been carried out to constrain the orientation and magnitude of the geomagnetic field during the mid-Brunhes Chron at approximately 0.41 Ma. Palaeomagnetic directions were determined using thermal demagnetization. Palaeointensity information was determined using a multi-protocol approach: (1) a Thellier-type protocol, (2) the multi-specimen parallel differential partial thermoremanence method, and (3) the Wilson method. The most consistent data set was obtained with the Wilson method, whilst similar average values, with wider data scatter, were obtained with the Thellier method. Higher values were obtained with the multi-specimen method. We suggest that consistency of results from the different protocols, which access different sections of the blocking/unblocking spectra, provide a useful test of the robustness of palaeointensity estimates. A mean virtual dipole moment of 5.4 +/- 0.6 x 10(22) Am(2) was determined, which agrees well with coeval values from the PINT database and with the higher average palaeointensities for the mid-Brunhes Chron indicated by more continuous sedimentary relative palaeointensity records. (C) 2011 Elsevier B.V. All rights reserved.
WOS关键词	MICROWAVE ; ROCKS ; LAVAS ; FIELD
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000296207900009
资助机构	Royal Society/National Science Foundation of China ; Royal Society/National Science Foundation of China ; Royal Society/National Science Foundation of China ; Royal Society/National Science Foundation of China ; Royal Society/National Science Foundation of China ; Royal Society/National Science Foundation of China ; Royal Society/National Science Foundation of China ; Royal Society/National Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/74230]
专题	中国科学院地质与地球物理研究所
通讯作者	Muxworthy, Adrian R.
作者单位	1.Univ London Imperial Coll Sci Technol & Med, Dept Earth Sci & Engn, London SW7 2AZ, England 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earths Deep Interior, Beijing 100029, Peoples R China 3.Univ Southampton, Sch Ocean & Earth Sci, Natl Oceanog Ctr, Southampton SO14 3ZH, Hants, England
推荐引用方式 GB/T 7714	Muxworthy, Adrian R.,Ji, Xinlin,Ridley, Victoria,et al. Multi-protocol palaeointensity determination from middle Brunhes Chron volcanics, Datong Volcanic Province, China[J]. PHYSICS OF THE EARTH AND PLANETARY INTERIORS,2011,187(3-4):188-198.
APA	Muxworthy, Adrian R..,Ji, Xinlin.,Ridley, Victoria.,Pan, Yongxin.,Chang, Liao.,...&Roberts, Andrew P..(2011).Multi-protocol palaeointensity determination from middle Brunhes Chron volcanics, Datong Volcanic Province, China.PHYSICS OF THE EARTH AND PLANETARY INTERIORS,187(3-4),188-198.
MLA	Muxworthy, Adrian R.,et al."Multi-protocol palaeointensity determination from middle Brunhes Chron volcanics, Datong Volcanic Province, China".PHYSICS OF THE EARTH AND PLANETARY INTERIORS 187.3-4(2011):188-198.