Estructura del complejo alcalino de Rangel ( Salta, Argentina)

• Autores: Néstor Vegas Tubia
• Localización: Geogaceta, ISSN 0213-683X, Nº. 45, 2008, págs. 3-6
• Idioma: español
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• Resumen

  • This work deals with the structure and emplacement of the alkaline complex of the Sierra de Rangel, a Cretaceous stock intruding in Ordovician metamorphic rocks of the Puna region at Salta, northwest Argentina. Field structures and magnetic fabrics reveal a complex structure composed by multiple sheets and feeding chanels. Both, the ascent and the lateral spreading of magma exploited old fractures in the country rocks.