Geologic Unit: Christmas Canyon
Christmas Canyon Formation*
Type section: 1 mi west of Christmas Canyon, Lava Mountains, in SW/4 NW/4 sec. 8, T. 28 S., R. 43 E., San Bernardino Co., CA (Smith, 1964).
Unit Name History:
Named (Smith, 1964).
Areal limits (Smith and others, 1968).
Age modified (Izett and Wilcox, 1982).
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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
Database project personnel
Last modified: 15-Jan-2013