A preliminary geoelectrical model of the Karelian megablock of the Baltic shield

Autor:	K. Pajunpää, L.L. Vanyan, A.P. Shilovsky, P. Kaikkonen, P. P. Shilovsky, S.E. Hjelt
Rok vydání:	1983
Předmět:	Basement Geophysics Physics and Astronomy (miscellaneous) Space and Planetary Science Magnetotellurics Astronomy and Astrophysics Baltic Shield Geology Seismology
Zdroj:	Physics of the Earth and Planetary Interiors. 32:301-305
ISSN:	0031-9201
DOI:	10.1016/0031-9201(83)90029-8
Popis:	Three groups of electromagnetic data have been considered in order to construct a preliminary geoelectrical depth model of the old basement of the Baltic shield: (i) audiomagnetotelluric data in the period range 1 3700 − 1 8 s; (ii) magnetotelluric data in the period range 25–1000 s; and (iii) global magnetovariation-sounding data in the period range >6 h . These data sets fit together on a common apparent-resistivity curve, indicating the existence of a unified geoelectrical model. This model does not support the existence of conducting crustal or asthenospheric layers.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5159247a7986acf4e2abd297f9f38786 https://doi.org/10.1016/0031-9201(83)90029-8 Zobrazit plný text záznamu