Sample Detail of
Sample: Sample No. 72ASt1759 -- USGS No. Mesozoic loc. M6086
Locality: Field No. 72ASt1759
Description: Southern boundary of sec. 13, T. 22 S., R. 2 W., Healy A-2 quad; on top of 5033-ft hill. Interbedded argillite, conglomerate, graded sandstone, siltstone, and interbedded volcanic flows. Coll: G.L. Kline, 1972.
Location: Alaska Quadrangle: Healy A-2
Township&Range: T22S R2W Section: sec. 13
Reference
Title: Report on Referred Fossils ,  1973 (04/09)
Report by: David L. Jones
Referred by: T. E. Smith
Age: Kimmeridgian
Comment:Age: Upper Jurassic - Kimmeridgian

Comments: The fossils and lithology are remarkably similar to rocks of the Eastern Alaska Range recently discussed by Berg, Jones, and Richter (1972, Prof. Paper 800-D, p. 1-24), especially a unit designated Jcs that occurs southeast of Nabesna. If andesitic flows occur with these rocks, it looks like the Gravina-Nutzotin belt is well represented in the Central Alaska Range.
Occurrence(s)
No. Group Name Qty Notes
1 Bivalves Buchia rugosa (Fischer)
2 Bivalves Oxytoma sp.
3 Bivalves Pleuromya(?) sp.
4 Bivalves pectinid clam
5 Annelida Ditrupa(?) sp. worm tube