Usage:
Tolstoi Formation (AK*)
Tolstoi Formation of Beaver Bay Group (AK)
Geologic age:
Tertiary
Paleocene*
Eocene*
Type section, locality, area and/or origin of name:
Along east shore of Pavlof Bay, north of Cape Tolstoi and Tolstoi Peak northward to entrance to Canoe Bay, Alaska Peninsula, southwestern AK. Not definitely known to be present southwest of type locality. Traced northeast of Pavlof Bay for 50 mi to head of Port Moller (Burk, 1965).
Type section: along east shore of Pavlof Bay, between Tolstoi Peak and Lone Peak, in Port Moller B-5 and C-5 quadrangles (scale 1:63,360), Alaska Peninsula, southwestern AK (Detterman and others, 1996).
Reference section: at Ivanof Bay, Stepovak Bay B-5 quadrangle (scale 1:63,360), Alaska Peninsula, southwestern AK (Detterman and others, 1996).
AAPG geologic province:
Alaska Peninsula province*
Alaska Southwestern region*
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 ([ ]).