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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
2017-11-01
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
ISSN2169-9313
Volume122Issue:11Pages:8664-8674
SubtypeArticle
AbstractIn 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).
KeywordPaleointensity Subaerial Basaltic Glass Hsdp2 Hawaii
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1002/2017JB014683
Funding OrganizationNSF(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)
WOS KeywordGEOMAGNETIC-FIELD STRENGTH ; COOLING RATE ; SINGLE-DOMAIN ; INTENSITY ; MULTIDOMAIN ; MAGNETITE ; SELECTION ; THELLIER ; GRAINS ; TRM
Indexed BySCI
Language英语
Funding OrganizationNSF(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)
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000419102700003
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/93158
Collection岩石圈演化国家重点实验室
Corresponding AuthorTauxe, L.
Affiliation1.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
First Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
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.
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