- Usage in publication:
-
- Warnick Member
- Modifications:
-
- Named
- AAPG geologic province:
-
- Puget Sound province
Summary:
Unit is named the Warnick Member of the Chuckanut Formation. Is in the easternmost part of the largest outcrop belt of the Chuckanut, which extends from the San Juan Islands into the foothills of the North Cascades, WA. Consists of intervals of conglomeratic coarse-grained sandstone alternating with fine-grained massive to laminated mudstone, interpreted as alluvial plain and fan deposits. Overlies the Slide Member (new) of the Chuckanut; is bounded on the north by faults. Thickness is 1000 m at the type section. Age is middle to late(?) Eocene based on stratigraphic correlation with the Maple Falls and Padden Members (both new) of the Chuckanut. (B1565)
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 ([ ]).