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National Geologic Map Database

Geologic Unit: Topagoruk

Usage:

No current usage.
(†Topagoruk Formation (AK) abandoned. Considered part of transition zone between Torok Formation and Nanushuk Group. See Torok and Nanushuk.)


Geologic age:

Early Cretaceous


Type section, locality, area and/or origin of name:

Type section (subsurface): depth-interval 1,350 to 3,900 ft, Topagoruk Test Well No.1 [now plugged and abandoned], approx. 72 mi S. 14 deg. E. of Point Barrow, Lat. 70 deg. 37 min. 30 sec. N., Long. 155 deg. 33 min. 36 sec. W., northern AK (Robinson and others, 1956).


AAPG geologic province:

Alaska Northern 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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).