Usage:
Greenback Member of Willamette Silt (OR)
Geologic age:
Quaternary
Pleistocene, late
Type section, locality, area and/or origin of name:
From Greenback School, in NE/4 SE/4 sec. 4, T. 13 S., R. 4 W., south 13 km to Irish Bend on Willamette River, Linn Co., OR (Balster and Parsons, 1969).
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 ([ ]).