Microwave palaeointensity study of the Jorullo volcano (Central Mexico)

Autor:	Jaime Urrutia-Fucugauchi, Avto Goguitchaichvili, John Shaw, Gennaro Conte, Martin N. Gratton
Rok vydání:	2005
Předmět:	geography Geophysics geography.geographical_feature_category Volcano Geochemistry and Petrology Lava Microwave method Seismology Geology Microwave Thermal methods
Zdroj:	Geophysical Journal International. 161:627-634
ISSN:	1365-246X 0956-540X
DOI:	10.1111/j.1365-246x.2005.02619.x
Popis:	SUMMARY A single lava flow from the earliest eruption period (ca AD 1759-1774) of the Jorullo vol- cano, Michoacan-Guanajuato volcanic field (MGVF), Mexico has been sampled to determine the palaeointensity of the magnetic field at the time of extrusion. Both conventional Thellier- Thellier experiments and two variants of the microwave palaeointensity technique (Coe variant of the Thellier-Thellier method and the perpendicular applied field method) have been con- ducted. High-quality palaeointensity results (mean of 46.6 ± 6.3 µT from 15 samples using all three methods) have been obtained, with both techniques in good agreement. This study presents further evidence of the equivalence of both microwave and thermal methods and adds to the database of palaeomagnetic data from the monogenetic volcanoes of Central America.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0bc3fa587a0a213544dbb32931caf556 https://doi.org/10.1111/j.1365-246x.2005.02619.x Zobrazit plný text záznamu Plný text