Validación mediante análisis multivariable de los tipos de litologías presentes en el sector suroeste (polígono 4) de la zona Tambo-Azuay

Abstract

Abstract:The objective of this work is to validate the different types of lithologies present in the Southwest sector of the Tambo-Azuay area through multivariate analysis; considering the great importance of lithological characterization for the different stages of exploration evaluation of natural resources; therefore, it will be very useful for companies dedicated to the exploration of natural resources. It starts from a geochemical database of 1016 points, with the help of Excel, all duplicate data and anomalous values were eliminated, obtaining a final base of 956 points, to which the EDA analysis, multivariate analysis, was applied. The Decision Tree stands out, with which it was identified that the exhaustive Chaid method is the method with the highest efficiency with a certainty of 93.41%. With the a priori and posteriori values obtained in the discriminant analysis, a new geological map was elaborated, with a modification of chemical elements in the different lithology types. Finally, it is concluded that the Jubones lithology prevails in the Southwest sector of the Tamb0-Azuay area.