2024-03-28T14:29:13Zhttps://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
Calvo Rathert, Manuel
Goguitchaichvili, Avto
Vashakidze, George T.
Camps, Pierre
Morales Contreras, Juan J.
Vegas Tubía, Néstor
Lebedev, Vladimir A.
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.
eng
info:eu-repo/semantics/openAccess
High reliable paleointensities
IZZI protocol
Lesser Caucasus
multispecimen protocols
Thellier-Thellier protocol
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