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    Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10259/6116

    Título
    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
    Autor
    Sánchez Moreno, Elisa MaríaAutoridad UBU Orcid
    Calvo Rathert, ManuelAutoridad UBU Orcid
    Goguitchaichvili, Avto
    Vashakidze, George T.
    Camps, Pierre
    Morales Contreras, Juan J.
    Vegas Tubía, Néstor
    Lebedev, Vladimir A.
    Publicado en
    Journal of geophysical research. Solid earth. 2021, V. 126, n. 4, e2020JB019682
    Editorial
    American Geophysical Union (AGU)
    Fecha de publicación
    2021-04
    ISSN
    2169-9313
    DOI
    10.1029/2020JB019682
    Resumen
    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.
    Palabras clave
    High reliable paleointensities
    IZZI protocol
    Lesser Caucasus
    multispecimen protocols
    Thellier-Thellier protocol
    Materia
    Física
    Physics
    Geología
    Geology
    URI
    http://hdl.handle.net/10259/6116
    Versión del editor
    https://doi.org/10.1029/2020JB019682
    Aparece en las colecciones
    • Artículos PALEOMAG-UBU
    Ficheros en este ítem
    Nombre:
    Sanchez-jgr_2021.pdf
    Tamaño:
    945.2Kb
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