Sample Detail of
Sample: Sample No. 79AMb80 -- USGS No. 27566-PC
Locality: Field No. 79AMb80
Description: Alaska, Karluk C-4-C-5 quads.; 57o 41 min. 35 sec. N., 155o 23 min. 50 sec. W.; small island at mouth of Puale Bay, 1.3 mi. S. 20o W. (sic!) from VABM Hike; unnamed Permian rocks. Collector: L.B. Magoon, 6/29/79.
Location: Alaska Quadrangle: Karluk C-4 & C-5
Lat.: 57o41'35 " Long.: 155o23'50 "
Reference
Title: Report on Referred Fossils ,  1980 (01/16)
Report by: J. Thomas Dutro , Jr.
Referred by: L. B. Magoon
Age: Early Permian (probably late Early Permian)
Comment:This collection contains two specimens of the brachiopod SPIRIFERELLA aff. S. SARANAE (de Verneuil) and is definitely Permian, probably late Early Permian in age. The corals may add something to the precision of the dating.

With regard to the published "Middle Permian" age (Hanson, 1957), I do not think these rocks are as young as early Guadaloupian. They correlate approximately with the Permian sequence in the Nushagak area and also with the upper Eagle Creek of the east-central Alaska Range (Richter and Dutro, 1975).

References:

Hanson, B.M., 1957, Middle Permian Limestone on the Pacific side of Alaska Peninsula: Am. Assoc. Petroleum Geologists Bull. v. 40, no 10, p. 2376-2378.

Richter, D.H. and Dutro, J.T., Jr., 1975, Revisiion of the type Mankomen Formation (Pennsylvanian and Permian), Eagle Creek area, Eastern Alaska Range, Alaska: U.S. Geol. Surv. Bull. 1395-B, p. B1-B25.

Occurrence(s)
No. Group Name Qty Notes
1 Brachiopods Spiriferella aff. S. saranae (de Verneuil) 2 specimens

Title: Report on Referred Fossils ,  1980 (01/22)
Report by: W. J. Sando
Referred by: L. B. Magoon
Age: Permian
Comment:This collection contains 5 specimens of the solitary coral LOPHOPHYLLIDIUM sp. This genus ranges from Pennsylvanian to Permian. Rowett (1975, Prof. Paper 823-D) reports the occurrence of the genus in beds of Permian age in East-central Alaska and the Wrangell Mountains.

The corals are compatible with the Permian assignment based on brachiopods reported by Dutro from the same collection on 1/16/80.

Occurrence(s)
No. Group Name Qty Notes
1 Rugose Corals Lophophyllidium sp. 5 specimens