- Usage in publication:
-
- Totsen series*
- Modifications:
-
- Named
- Dominant lithology:
-
- Schist
- AAPG geologic province:
-
- Alaska Northern region
Summary:
[Named for Totsenbetna (Koyukan Indian name for Wild River), northern AK]. Occupies east-west belt of 12 mi in width in Endicott Range to south of Skajit formation. Consists mainly of mica-schist and some quartz mica-schist. Locally becomes graphitic and in places carries much quartz in small veins and lenticular bodies. Is intensely folded. Is 6000 to 7000 ft thick. Seems to unconformably overlie Skajit formation (new); unconformably underlies Bergman series (new). Provisionally referred to Late Silurian age.
Source: GNU records (USGS DDS-6; Menlo GNULEX).
- Usage in publication:
-
- "Totsen series"†
- Modifications:
-
- Abandoned
- AAPG geologic province:
-
- Alaska Northern region
Summary:
"Totsen series" of John River region included in unnamed early Paleozoic or older rocks in correlation table of geologic formations in northwestern AK. [Thus, in effect, unit is abandoned.]
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 ([ ]).