TY - RPRT TI - Geochemistry and Geochronology of Middle Tertiary Volcanic Rocks of the Central Chiricahua Mountains, Southeast Arizona AU - Edward A. du Bray AU - John S. Pallister AU - Lawrence W. Snee PY - 2004 DO - 10.3133/pp1684 UR - https://pubs.usgs.gov/publication/pp1684 ID - pp1684 ER -