Walker, James A. Spatial and temporal variations in volcanics of the Andean Central volcanic zone (26 to 28°S) - Boulder, CO Geological Society of America 1991 - pp. 139-155 ilus., map., tbls. - Special Paper. Geological Society of America n.265 . Subjects--Topical Terms: DIFERENCIACION MAGMATICAGEOQUÍMICAPLIO-CUATERNARIOROCAS VOLCANICASTECTÓNICAVOLCANISMO Subjects--Geographic Terms: ANDESCHILE Universal Decimal Class. No.: 552.11(238.1)/H22|10