Sample Detail of
Sample: Sample No. 91Tr17 -- USGS No. 31721-PC
Locality: Field No. 91Tr17
Description: Howard Pass C-3. Lat. 68o 37'05" N., Long. 157o 36'00" W. Sample from Bion barite deposit of Kelley and others (1993), from about 25 m below chert containing Late Mississippian or Early Pennsylvanian radiolarians. (description from Dover et al., 2004, p. 67 (Table 4))
Location: Alaska Quadrangle: Howard Pass C-3
Lat.: 68o37'05 " Long.: 157o36'00 "
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
Formation: Akmalik Chert
CAI:Min: 1.5 - Max: 2
Comment:Age: Mississippian

CAI=1.5-2

Shown as locality 30 on Sheet 2; map unit: lPMap

REFERENCES:
Dumoulin, J.A., Harris, A.G., and Schmidt, J.M., 1993, Deep-water lithofacies and conodont faunas of the Lisburne Group, western Brooks Range, Alaska, in Dusel-Bacon, C., and Till, A.B., eds., Geologic Studies in Alaska by the U.S. Geological Survey during 1992: U.S. Geological Survey Bulletin 2068, p. 12-30.
Kelley, J., Tailleur, I.L., Morin, R.L., Reed, K.M., Harris, A.G., Schmidt, J.M., Brown, F.J., and Kurtak, J.M., 1993, Barite deposits in the Howard Pass quadrangle and possible relations to barite elsewhere in the northwestern Brooks Range, Alaska: U.S. Geological Survey Open-File Report 93-215, 13 p.

Occurrence(s)
No. Group Name Qty Notes
1 Conodonts Conodonts see also Dumoulin and others, 1993, table 1, loc. 15