P. Schmoldt, PhD - MTNet - DIAS

7. Geology of the Iberian Peninsula
Fig. 7.14.: Palaeotectonic-palaeographic map of Iberia and surrounding areas during Cretaceous (Santonian), showing the main
tectonosedimentary domains for that time; from Martin-Chivelet et al. [2002].
et al., 1996] indicate average directions between N130E and N155E for the different geological
times from Middle Miocene to the present day. A number of faults, identified in
the study by de Vicente et al. [1996], intersect the PICASSO Phase I profile, exhibiting
a strike direction of approximately N45E (Fig. 7.15). Even though the precise depth of
these faults is presently unknown, they could provide a good approximation of the dominant
geoelectric strike direction to be expected in the Tajo Basin crust. The points of
intersect between the three relevant faults and the PICASSO Phase I profile are located in
the proximity of stations pic005, pic009, and pic013, hence an enhanced 2D nature of the
upper crustal responses for these three stations is likely.
Volcanism in the Tajo Basin
Four main provinces of Cenozoic volcanism can be located in Iberian, mostly confined
to the SE region of the peninsula [e.g. López-Ruiz et al., 2002] (cf. Figs. 7.1, 7.16,
7.17). One of these provinces, the Calatrava Volcanic Province (CVP), is situated in
the southwestern region of the Tajo Basin around the city of Ciudad Real, located approximately
100 km to the west of the PICASSO Phase I profile. For the CVP rocks
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