GEOLEX database Geologic Unit: Deadman Usage: Deadman Quartzite of Mazatzal Group (AZ) Deadman Quartzite (AZ) Age: Proterozoic, Early Geologic Province: Basin and Range province Areal Extent: AZ(c) Type Locality: Not stated. Named from typical occurrence on North Fork of Deadman Creek, Mazatzal Mountains, central AZ (Wilson, 1939). Unit Name History: First used (Butler and Wilson, 1938). Named (Wilson, 1939). Age modified; Revised to lowermost formation (of 3) of Mazatzal Group (Karlstrom and Conway, 1986). Note: If you need more information, please contact Nancy Stamm (nstamm@usgs.gov). Asterisks (*) indicate usage by the U.S. Geological Survey. Other usages by state geological surveys. "No current usage" implies that a name has been abandoned or that it has fallen into disuse. Former usage and, if known, replacement name given in parentheses (). Slashes (/) indicate unit name usage violates the 1983 North American Stratigraphic Code. This violation may be explained within brackets ([ ]). U.S. Department of the Interior, U.S. Geological Survey, Reston, VA, USA URL http://ngmdb.usgs.gov/ngmdb/ngm_catalog.ora.html Database project personnel Last modified: 7-Jan-2007