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The geological works that have been carried out in the Rhodes-Fomento region focused on mineral prospecting have been different, however, the structural-tectonic and lithological cartography has not been realized from the use of geophysical data, in order to substantiate the reconnaissance works proposed for the most favorable sectors to locate mineralization. For these reasons, the objectives of the present investigation were the realization of the structural-tectonic-lithological and geological cartography of the region based on the integrated interpretation of geophysical data (gravimetric, aeromagnetic, and aerial gamma spectrometry). The interpretation of the different channels of aerial gamma spectrometry allowed to conclude that: the highest values of uranium are observed in geological formations with high contents of graphite (organic matter); all metamorphic rocks have high values of thorium and; the highest values of potassium are linked to the granodiorites, the magmatic breaches, as well as to the acid rocks of the La Bruja Formation corresponding to the Cenomanian Upper Cretaceous. From the interpretation of the ternary map and the combinations of radioelements, the main lithological units and their nature in the area were identified with greater precision. As a final result, a map was prepared with the integrated interpretation of all the geophysical data that will make it possible to carry out the exploration stage in the most favorable sectors of locating sulphide mineralization of base and precious metals (Cu Pb Zn ± Au, Ag).

Cartografía geólogo-estructural y litológica a partir de datos geofísicos del área de Rodas-Fomento (Cuba central)