DETERMINACIÓN DE LA VELOCIDAD DE LOS GASES EN EL SUBSUELO MEDIANTE UN MÉTODO BASADO EN LAS VARIACIONES DE LA CONCENTRACIÓN DEL GAS RADÓN

Abstract

In this paper a theoretic model is proposed to calculate the gas velocity in the subsoil based onradon concentration variations. The general transport equation for radon in a homogeneous soil with constantporosity is assumed. The diffusion coefficient and the gas velocity being constant. In order to illustrate the mo-del, three geological areas were considered: the Irazú and Arenal volcanoes, situated in the volcanic range inCosta Rica, and the Agua Caliente fault located in San José, Costa Rica.