Page 188 - Caldera Volcanism Analysis, Modelling and Response
P. 188

The Sierra Madre Occidental, Mexico                                   163





























































             Figure 12  Digital elevation models of the grabens at the SWsector of the SMO. (a) Plan view;
             the graben are:Va,Valparaiso; Je, Jerez;Vi,Villanueva; B, Bolan ì os;T,Tlaltenango; J, Juchipila;
             Ta,Tabasco; C, Calvillo; M, Malpaso; A, Aguascalientes. (b) 3D model of area shown in (a),
             indicating also the area covered in Figure13a.The deepest graben is Bolan ì os in the segment
             between 21.21 and 221 Lat. N.This deep segment corresponds to the graben caldera of
             Bolan ì os.
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