- Usage in publication:
-
- Mystic Creek Member*
- Modifications:
-
- Named
- Biostratigraphic dating
- Dominant lithology:
-
- Schist
- AAPG geologic province:
-
- Alaska Southern region
Summary:
Named as second from uppermost member (of 5) of Totatlanika Schist. Type section designated as exposures on Rogers Creek 1550 to 2600 m upstream from its mouth [junction with Sheep Creek], Healy D-2 quad, AK. Shown on geologic sketch map. Composed of fine-grained purple, green, and yellow schist exhibiting linear streaking on foliation surfaces. Thickness is 600 m, ranges 600 to 900 m. Overlies and interfingers Chute Creek Member (new)(Totatlanika Schist) Underlies Sheep Creek Member (new) (Totatlanika Schist). Age is Mississippian(?) based on biostratigraphic dating of SYRINGOPORA (Wahrhaftig, 1958)
Source: GNU records (USGS DDS-6; Menlo GNULEX).
- Usage in publication:
-
- Mystic Creek Member*
- AAPG geologic province:
-
- Alaska Southern region
Summary:
Age for Totatlanika Schist is modified from Mississippian(?) to: Middle Devonian to Early Mississippian. [Age of Mystic Creek Member is not addressed].
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 ([ ]).