Sample Detail of
Sample: Sample No. 92ADo81B -- USGS No. DR 1462
Locality: Field No. 92ADo81B
Description: Howard Pass B-3. Lat. 68o 26'24" N., Long. 157o 26'10" W. Dark chert float associated with volcanic and volcaniclastic rocks. (description from Dover et al., 2004, p. 62 (Table 2)); [Formation: Mississippian-Triassic?? Volcaniclastic unit (previously unknown). USGS Howard Pass 1:250,000 B3 quadrangle, crest of spur ridge in SE corner of sec. 35, T. 12 S., R. 24 W. Lat 68°26'20", long 157°26'00". (description from Blome and Reed E&R report dated June 23, 1993; Shipment no. A-92-9D)]
Location: Alaska Quadrangle: Howard Pass B-3
Township&Range: 12 S. 24 W. Section: 35
Lat.: 68o26'24 " Long.: 157o26'10 "
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: Early Jurassic (?Early Jurassic (?Sinemurian or ?Pliensbachian))
Formation: Unnamed (Volcaniclastic rocks of Memorial Creek (Cretaceous? and Jurassic?))
Comment:Age: ?Early Jurassic (?Sinemurian or ?Pliensbachian)

Shown as loclaity 134 on Sheet 2; map unit: KJmv

Occurrence(s)
No. Group Name Qty Notes
1 Radiolarian Poorly preserved assemblage including ?Canutus sp. radiolarians identified by C.D. Blome and K.M. Reed
2 Radiolarian Other recrystallized crushed and distorted nassellarians
3 Radiolarian Rare spumellarian fragments

Title: Report on Referred Fossils ,  1993 (06/23)
Report by: Charles D. Blome , Katherine M. Reed
Referred by: J. H. Dover
Age: Sinemurian-Pliensbachian (?Early Jurassic (?Sinemurian or ?Pliensbachian))
Formation: Unknown (prviously unknown volcaniclastic unit)
Comment:Age: ?Early Jurassic (?Sinemurian or ?Pliensbachian)
Occurrence(s)
No. Group Name Qty Notes
1 Radiolarian Poorly preserved assemblage including:
2 Radiolarian ?Canutus sp.
3 Radiolarian other recrystallized crushed and distorted nasselarians
4 Radiolarian Rare spumellarian fragments