Deutsch
 
Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT
Zur Ablage hinzufügen
  Lokale TagsFreigabegeschichteDetailsÜbersicht

Freigegeben
Konferenzbeitrag

A paleomagnetic and multimethod paleointensity study on the Pleistocene Khaveti lava flow sequence in Georgia

Urheber*innen

Calvo-Rathert,  Manuel
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Sánchez-Moreno,  Elisa-María
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Herrero-Bervera,  Emilio
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Vashakidze,  Georg
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Morales-Contreras,  Juan
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Pérez-Rodríguez,  Nayeli
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Goguitchaichvili,  Avto
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Solé Viñas,  Jesús
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Externe Ressourcen
Es sind keine externen Ressourcen hinterlegt
Volltexte (frei zugänglich)
Es sind keine frei zugänglichen Volltexte in GFZpublic verfügbar
Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Calvo-Rathert, M., Sánchez-Moreno, E.-M., Herrero-Bervera, E., Vashakidze, G., Morales-Contreras, J., Pérez-Rodríguez, N., Goguitchaichvili, A., Solé Viñas, J. (2023): A paleomagnetic and multimethod paleointensity study on the Pleistocene Khaveti lava flow sequence in Georgia, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-0575


Zitierlink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016932
Zusammenfassung
A paleomagnetic and rock magnetic study was carried out on 28 successive Pleistocene basaltic lava flows from the Khaveti sequence in the Djavakheti Highland in the Lesser Caucasus in Georgia. For the present study, a new K-Ar dating has been performed on samples from the lower and the upper part of the section. Rock magnetism experiments were carried out on selected samples from all flows to characterise the carriers of remanence and obtain information about their stability. Thermomagnetic experiments mostly displayed reversible curves with magnetite as the only carrier of remanence, although titanomagnetites with differing content of titanium were also observed in some cases. Analysis of hysteresis parameters suggests that the grain size of most studied samples corresponds to pseudo single-domain particles, which can also be interpreted in terms of a mixture of single-domain and multi-domain grains. Paleomagnetic experiments revealed two clearly differing behaviours. While the upper 14 flows yielded a reverse polarity direction (D= 185.8°, I= -53.1°, α95= 2.3, k= 291.4), in the lower section of the sequence 13 flows revealed a transitional direction (D= 252.8°, I= 43.1°, α95= 3.7, k= 129.7) and one flow yielded no coherent results. Paleointensity experiments were carried out on samples from most flows with the Thellier-Coe method at the paleomagnetic laboratories of the University of Hawaii at Manoa (USA) and the University of Burgos (Spain) and with the multispecimen method at the paleomagnetic laboratory of UNAM at Morelia (Mexico). Interpretation of results is still underway.