%0 Journal Article
%T Edades K/Ar de 54 rocas ¨ªgneas y metam¨®rficas del occidente, centro y sur de M¨¦xico
%A Sol¨¦
%A Jes¨²s
%A Salinas
%A Juan Carlos
%A Gonz¨¢lez-Torres
%A Enrique
%A Cendejas Cruz
%A Jos¨¦ Eduardo
%J Revista mexicana de ciencias geol¨®gicas
%D 2007
%I Universidad Nacional Aut¨®noma de M¨¦xico
%X fifty-four samples of igneous and metamorphic rocks from south, central and northern mexico have been analyzed by the k/ar method. samples were provided to instituto de geolog¨ªa of universidad nacional aut¨®noma de m¨¦xico by the consejo de recursos minerales (now servicio geol¨®gico mexicano) from selected regions of the following states: baja california sur, colima, durango, estado de m¨¦xico, guerrero, jalisco, oaxaca, san luis potos¨ª, sinaloa y zacatecas. all relevant information for each sample, including location, geological unit, petrographical description, mineral analyzed and age is described in the text; analytical data for each sample are given as a table. ages range from 2 ma to 249 ma, with about 30% being oligocene ages related to volcanism and plutonism in the sierra madre occidental and sierra madre del sur.
%K k/ar ages
%K igneous rocks
%K metamorphic rocks
%K mexico.
%U http://www.scielo.org.mx/scielo.php?script=sci_abstract&pid=S1026-87742007000100009&lng=en&nrm=iso&tlng=en