Usage:
Lorane Siltstone Member of Tyee Formation (OR*-recognized locally in Eugene area)
[?] Lorane Siltstone Member of Flournoy Formation (OR*)
[?] Lorane Shale Member of Spencer Formation (OR*)
Geologic age:
early Tertiary (middle Eocene)*
Type section, locality, area and/or origin of name:
Type locality: north of Lorane, in valley of North Fork of Siuslaw River, in S/2 sec. 36, T. 19 S., R. 5 W., and sec. 1, T. 20 S., R. 5 W., [Cottage Grove 15-min quadrangle, 1947 ed.], Lane Co., western OR (Vokes and others, 1951).
AAPG geologic province:
Western Columbia basin*
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 ([ ]).