Paleointensity From Subaerial Basaltic Glasses From the Second Hawaii Scientific Drilling Project (HSDP2) Core and Implications for Possible Bias in Data From Lava Flow Interiors

doi:10.1002/2017JB014683

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

	Paleointensity From Subaerial Basaltic Glasses From the Second Hawaii Scientific Drilling Project (HSDP2) Core and Implications for Possible Bias in Data From Lava Flow Interiors
	Cai, S.1,2; Tauxe, L.1; Cromwell, G.1
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
	2017-11-01
卷号	122 期号:11 页码:8664-8674
关键词	Paleointensity Subaerial Basaltic Glass Hsdp2 Hawaii
ISSN号	2169-9313
DOI	10.1002/2017JB014683
文献子类	Article
英文摘要	In this study, we collected samples from subaerial basaltic glassy margins from the second Hawaii Scientific Drilling Project (HSDP2) core. We employed the rigorous IZZI method during the paleointensity experiment combined with the stringent CCRIT criteria for data selection to obtain 21 robust paleointensity estimates recorded by glassy margins from 20 lava flows. We compared our new results to published paleointensities from the interiors of the lava flows from HSDP2 and found that our data are systematically lower than those from the interiors of the same lava flows. The reasons for the discrepancy in intensity are still unclear, but one possibility that could not be absolutely excluded is the effect of cooling rate on the more slowly cooled lava flow interiors. Although our new data from the glassy margins are lower than those from the lava flow interiors, they are still overall higher than the expected field of the study site calculated from a geocentric axial dipole model with an ancient average field of 42ZAm(2), either because of a long-term local anomaly of the field in Hawaii or an insufficient age distribution of our new data (e.g., missing the time period with low field intensities).
WOS关键词	GEOMAGNETIC-FIELD STRENGTH ; COOLING RATE ; SINGLE-DOMAIN ; INTENSITY ; MULTIDOMAIN ; MAGNETITE ; SELECTION ; THELLIER ; GRAINS ; TRM
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000419102700003
资助机构	NSF(EAR1547263 ; NSF(EAR1547263 ; NSF(EAR1547263 ; NSF(EAR1547263 ; EAR1520674 ; EAR1520674 ; EAR1520674 ; EAR1520674 ; EAR1345003) ; EAR1345003) ; EAR1345003) ; EAR1345003) ; NSF(EAR1547263 ; NSF(EAR1547263 ; NSF(EAR1547263 ; NSF(EAR1547263 ; EAR1520674 ; EAR1520674 ; EAR1520674 ; EAR1520674 ; EAR1345003) ; EAR1345003) ; EAR1345003) ; EAR1345003) ; NSF(EAR1547263 ; NSF(EAR1547263 ; NSF(EAR1547263 ; NSF(EAR1547263 ; EAR1520674 ; EAR1520674 ; EAR1520674 ; EAR1520674 ; EAR1345003) ; EAR1345003) ; EAR1345003) ; EAR1345003) ; NSF(EAR1547263 ; NSF(EAR1547263 ; NSF(EAR1547263 ; NSF(EAR1547263 ; EAR1520674 ; EAR1520674 ; EAR1520674 ; EAR1520674 ; EAR1345003) ; EAR1345003) ; EAR1345003) ; EAR1345003)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/93158]
专题	地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者	Tauxe, L.
作者单位	1.Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Cai, S.,Tauxe, L.,Cromwell, G.. Paleointensity From Subaerial Basaltic Glasses From the Second Hawaii Scientific Drilling Project (HSDP2) Core and Implications for Possible Bias in Data From Lava Flow Interiors[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2017,122(11):8664-8674.
APA	Cai, S.,Tauxe, L.,&Cromwell, G..(2017).Paleointensity From Subaerial Basaltic Glasses From the Second Hawaii Scientific Drilling Project (HSDP2) Core and Implications for Possible Bias in Data From Lava Flow Interiors.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,122(11),8664-8674.
MLA	Cai, S.,et al."Paleointensity From Subaerial Basaltic Glasses From the Second Hawaii Scientific Drilling Project (HSDP2) Core and Implications for Possible Bias in Data From Lava Flow Interiors".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 122.11(2017):8664-8674.