Sample Detail of
Sample: Sample No. 92ATr8B2 -- USGS No. DR 1577
Locality: Field No. 92ATr8B2
Description: Howard Pass C-3. Lat. 68o 37'52" N., Long. 157o 30'50" W. Chert rubble lithologically identical to, but approx. 20 m downslope from, 92ATr8A. (description from Dover et al., 2004, p. 56 (Table 2))
Location: Alaska Quadrangle: Howard Pass C-3
Lat.: 68o37'52 " Long.: 157o30'50 "
Reference
Title: Geologic and fossil locality maps of the west-central part of the Howard Pass Quadangle and part of the adjacent Misheguk Mountains Quadrangle, western Brooks Range, Alaska ,  2004
Report by: Jim Dover , Irv L. Tailleur , Julie A. Dumoulin
Age: Mississippian (Mississippian (probably Meramecian))
Formation: Akmalik Chert
Comment:Age: Mississippian (probably Meramecian)

Shown as locality 28 on Sheet; map unit: lPMap

REFERENCE
Holdsworth, B.K., and Murchey, B.L., 1988, Paleozoic radiolarian biostratigraphy of the northern Brooks Range, Alaska, in Gryc, G., ed., Geology and Exploration of the National Petroleum Reserve in Alaska, 1974-1982: U.S. Geological Survey Professional Paper 1399, p. 777-792.

Occurrence(s)
No. Group Name Qty Notes
1 Radiolarian Etched surface has very well aligned but somewhat squashed radiolarians, granular, heavily recrystallized radiolarians identified by C.D. Blome and K.M. Reed
2 Radiolarian Many recrystallized spumellarians that have broken, delicate spines
3 Radiolarian Numerous flat (not tetrahedal) triangular forms referable to Scharfenbergia--possibly Scharfenbergia ruestae (Ormiston and Lane) (see Holdsworth and Murchey, 1988, plate 34.4, figs. 16 and 17)
4 Radiolarian Poorly preserved multi-shell spumellarians
5 Radiolarian Moderately robust spicules
6 Radiolarian Several very poorly preserved and broken forms assignable to Albaillella Deflandre; these appear to be short tests and could be A. cf. A. cartalla Ormiston and Lane, which Holdsworth and Murchey (1988) suggested is a pre-Chesterian taxon