A deep geoelectrical survey in the Southern Central Alps

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L. Alfano
G. Lorenzoni
C. Melandri
M. Mocchi
G. Nuttini
F. Pirera
M. F. Soffientini


A deep geoelectrical survey was carried out on the Southern Central AIps, to the north of Bergamo, by means of the continuous polar dipole-dipole electrode array. Among the 6 profiles executed, 4 revealed the existence of a substratum with very high resistivity values (15 000-40 000 ohm.m) and a flat not very deep upper boundary; its thickness exceeds the maximum expIoration depths of the soundings (1 to 6 km). On the grounds of general considerations and resistivity field data set, it is possible to infer that the high values should be ascribed to endogenous rather than to sedimentary rocks. A problem arises since these geophysical results are not in agreement with some geological models.

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Alfano L, Lorenzoni G, Melandri C, Mocchi M, Nuttini G, Pirera F, Soffientini MF. A deep geoelectrical survey in the Southern Central Alps. Ann. Geophys. [Internet]. 1994Nov.25 [cited 2022Jul.6];37(5 Sup.). Available from: https://www.annalsofgeophysics.eu/index.php/annals/article/view/4166