2026-05-07T23:12:41Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/61162021-12-16T14:06:47Zcom_10259.4_2560com_10259_5086com_10259_2604col_10259.4_2561
Sánchez Moreno, Elisa María
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600
Calvo Rathert, Manuel
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600
Goguitchaichvili, Avto
978a6f31-eb60-48af-9711-af15682307d5
600
Vashakidze, George T.
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600
Camps, Pierre
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600
Morales Contreras, Juan J.
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600
Vegas Tubía, Néstor
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Lebedev, Vladimir A.
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2021-11-08T11:16:33Z
2021-11-08T11:16:33Z
2021-04
2169-9313
http://hdl.handle.net/10259/6116
10.1029/2020JB019682
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.
Project PID2019-105796/10.13039/501100011033 (Agencia Estatal de Investigación, Spain), project BU066U16 (Junta de Castilla y León, Spain) and pre-doctoral grant BES-2013-064060 (MINECO, Spain). MCR acknowledges funding from the Fulbright Commission and the Spanish Ministry of Science, Innovation and Universities for a research stay at Hawaii University at Manoa. AG is grateful to the financial support given by DGAPA-PAPIIT IN101717. At Montpellier laboratory, the FUReMAG rapid furnace construction was supported by the French National Agency for Research (ANR-12-BS06-0015).
application/pdf
eng
American Geophysical Union (AGU)
Journal of geophysical research. Solid earth. 2021, V. 126, n. 4, e2020JB019682
https://doi.org/10.1029/2020JB019682
High reliable paleointensities
IZZI protocol
Lesser Caucasus
multispecimen protocols
Thellier-Thellier protocol
Física
Geología
Physics
Geology
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
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/openAccess
THUMBNAIL
Sanchez-jgr_2021.pdf.jpg
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https://riubu.ubu.es/bitstream/10259/6116/2/license.txt
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ORIGINAL
Sanchez-jgr_2021.pdf
Sanchez-jgr_2021.pdf
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https://riubu.ubu.es/bitstream/10259/6116/1/Sanchez-jgr_2021.pdf
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10259/6116
oai:riubu.ubu.es:10259/6116
2021-12-16 15:06:47.31
Repositorio Institucional de la Universidad de Burgos
bubrep@ubu.es
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