气候变化领域集成服务门户(CCPortal): Paleointensity Results From Pliocene Lavas of the Lesser Caucasus Obtained Using the Multispecimen Parallel Differential pTRM Method: A Comparison With Thellier-Thellier and IZZI Data

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DOI	10.1029/2020JB019682
	Paleointensity Results From Pliocene Lavas of the Lesser Caucasus Obtained Using the Multispecimen Parallel Differential pTRM Method: A Comparison With Thellier-Thellier and IZZI Data
	Sánchez-Moreno E.M.; Calvo-Rathert M.; Goguitchaichvili A.; Vashakidze G.T.; Camps P.; Morales-Contreras J.; Vegas-Tubía N.; Lebedev V.A.
发表日期	2021
ISSN	21699313
卷号	126 期号:4
英文摘要	We report paleointensity results obtained with the multispecimen method (MSP) over the Pliocene sequence of Apnia (Georgia) which records a polarity reversal. Paleointensity determinations with the multispecimen technique were performed on 12 flows with the original (MSP-DB) and the domain-state corrected (MSP-DSC) protocol. Eight MSP-DSC determinations passed the proposed quality criteria. To obtain highly reliable data through the agreement between intensity values from different methods, MSP results were combined with paleointensities from a previous study with Thellier-type methods and especially strict selection criteria (RCRIT) on same flows (Sánchez-Moreno et al., 2020). Application of this multimethod procedure resulted in three new paleointensities including both MSP and Thellier-type results and an additional one obtained with two different Thellier-type methods, yielding one paleointensity of 36.9 µT in the normal-polarity, and three paleointensities between 19.2 and 24.1 µT in the reverse-polarity section. Additionally, Thellier-type data have been reinterpreted in this study with more flexible criteria (TTP) and the results combined with the MSP data. As a result, four flows yield paleointensities including MSP and Thellier-type determinations and seven include paleointensities obtained with two different Thellier-type methods. Results range from 37.2 and 44.3 μT in the normal-polarity and from 12.5 to 24.6 μT in the reverse-polarity section. Comparison of results from the four flows yielding multimethod determinations applying RCRIT criteria with those from the same flows under TTP criteria yields no significant difference in paleointensity values and their experimental uncertainty. Thus, application of a multimethod approach supports the possibility of using TTP criteria. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	High reliable paleointensities; IZZI protocol; Lesser Caucasus; multispecimen protocols; Thellier-Thellier protocol
语种	英语
来源期刊	Journal of Geophysical Research: Solid Earth
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/187232
作者单位	Instituto Dom Luiz (IDL), Faculdade de Ciências, Universidade de Lisbon, Lisbon, Portugal; Departamento de Física, EPS Campus Rio Vena, Universidad de Burgos, Burgos, Spain; Laboratorio Interinstitucional de Magnetismo Natural, Instituto de Geofísica Unidad Michoacán, UNAM – Campus Morelia, Morelia, Mexico; Alexandre Janelidze Institute of Geology, Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia; Géosciences Montpellier, Université de Montpellier, CNRS, Montpellier, France; Departamento de Geodinámica, Universidad del País Vasco UPV/EHU, Leioa, Bizkaia, Spain; Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry – Russian Academy of Sciences (IGEM RAS), Moscow, Russian Federation
推荐引用方式 GB/T 7714	Sánchez-Moreno E.M.,Calvo-Rathert M.,Goguitchaichvili A.,et al. Paleointensity Results From Pliocene Lavas of the Lesser Caucasus Obtained Using the Multispecimen Parallel Differential pTRM Method: A Comparison With Thellier-Thellier and IZZI Data[J],2021,126(4).
APA	Sánchez-Moreno E.M..,Calvo-Rathert M..,Goguitchaichvili A..,Vashakidze G.T..,Camps P..,...&Lebedev V.A..(2021).Paleointensity Results From Pliocene Lavas of the Lesser Caucasus Obtained Using the Multispecimen Parallel Differential pTRM Method: A Comparison With Thellier-Thellier and IZZI Data.Journal of Geophysical Research: Solid Earth,126(4).
MLA	Sánchez-Moreno E.M.,et al."Paleointensity Results From Pliocene Lavas of the Lesser Caucasus Obtained Using the Multispecimen Parallel Differential pTRM Method: A Comparison With Thellier-Thellier and IZZI Data".Journal of Geophysical Research: Solid Earth 126.4(2021).