- Usage in publication:
-
- Ronald Member
- Modifications:
-
- Named
- Dominant lithology:
-
- Till
- Gravel
- Sand
- Silt
- AAPG geologic province:
-
- Cascades province
Summary:
Type locality: till facies, cut along south bank of Yakima River, east of HWY I-90, SE/4 NW/4 sec.36 T20N R14E; outwash facies, cut along north bank of Yakima River in riser of Ronald terrace, SE/4 SE/4 sec.28 T20N R15E, Kittitas Co, WA. Is second lowest member of Lakedale Drift). Consists of till, gravel, sand and silt. Divided into till and outwash facies. Overlies Bullfrog Member (new); underlies Domerie Member (new). Is Pleistocene age (Fraser Glaciation).
Source: GNU records (USGS DDS-6; Menlo GNULEX).
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 ([ ]).