Usage:
Magic Mountain Gneiss (WA*)
Geologic age:
Late Cretaceous to Eocene*
Type section, locality, area and/or origin of name:
Not designated. Named from Magic Mountain, Cascade River 7.5-min quadrangle, Skagit Co., WA (Tabor, 1962; Tabor and others, 2002).
Principle reference locality: Magic Mountain, located south of Cascade Pass, in vicinity of Lat. 48 deg. 27 min. 00 sec. N., Long. 121 deg. 02 min. 00 sec. W., Cascade Pass 7.5-min quadrangle, Skagit Co., WA (Tabor and others, 2002).
AAPG geologic province:
Cascades province*
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).
Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).