Sample Detail of
Sample: Sample No. 92ARm63A -- USGS No. DR 1491
Locality: Field No. 92ARm63A
Description: Howard Pass B-3. Lat. 68o 25'44" N., Long. 157o 17'45" W. Tightly folded, light-gray to green and light-brown to cream-colored chert in beds 1-15 cm thick, structurally below mafic igneous rocks. (description from Dover et al., 2004, p. 63 (Table 2)); [Formation: Mississippian-Triassic -- unknown unit structurally? below Memorial Creek volcanics. USGS Howard Pass 1:250,000 B3 quadrangle, T. 12 S., R. 23 W., sec. 4; on nose of low ridge on north side of Memorial Creek, approx. 2.75 mi upstream from east edge of the B3 quadrangle. Lat 68°25'44", long 157°17'43". (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. 23 W. Section: 4
Lat.: 68o25'44 " Long.: 157o17'45 "
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: Late Triassic (Late Triassic (late Carnian?, Norian))
Formation: Imnaitchiak Chert
Comment:Age: Late Triassic (late Carnian?, Norian)

Shown as locality 135 on Sheet 2; map unit: JlPip

Occurrence(s)
No. Group Name Qty Notes
1 Radiolarian Poorly preserved forms including Capnuchosphaera sp. (tumidaspine fragments) radiolarians identified by C.D. Blome and K.M. Reed
2 Radiolarian Pseudoheliodiscus sp. (fragment of cortical ring)
3 Radiolarian Isolated twisted spines

Title: Report on Referred Fossils ,  1993 (06/23)
Report by: Charles D. Blome , Katherine M. Reed
Referred by: J. H. Dover
Age: Carnian-Norian (Late Triassic (late Carnian?, Norian))
Formation: Unknown (Unit unknown structurally? below Memorial Creek volcanics)
Comment:Late Triassic (late Carnian?, Norian)
Occurrence(s)
No. Group Name Qty Notes
1 Radiolarian Poorly preserved forms including:
2 Radiolarian Capnuchosphaera sp. (tumidaspine fragments)
3 Radiolarian Pseudoheliodiscus sp. (fragment of cortical ring)
4 Radiolarian Isolated twisted spines