PLAGIOCLASE ZONING AS AN INDICATOR OF MAGMA PROCESSES AT OLLAGÜE VOLCANO, ANDEAN CENTRAL VOLCANIC ZONE, CHILE
LAVIADA-GARMON, Drew, Geography, Geology, and Planning, Missouri State University, 4355 South National Avenue, 1609, Springfield, MO 65810, MICHELFELDER, Gary, Department of Geography, Geology, and Planning, Missouri State University, 901 S. National Ave, Springfield, MO 65897 and BUCKLEY, Kasey L., Department of Geosciences and Geological and Petroleum Engineering, Missouri University of Science and Technology, Rolla, MO 65409