Sample Detail of
Sample: Sample No. 91Tr45E
Locality: Field No. 91Tr45E
Description: Howard Pass C-3. Lat. 68o 32.05' N., Long. 157o 32.8' W. Sample from dense, grayish-black, dark-buff-weathering, fine-grained limestone in 30-cm-thick interbeds within approx. 2-m-thick interval of platy shale; thin section is sponge spiculite, possibly bioturbated. Spicules (10-30 percent of slide) mostly silicieous but some calcareous and others pyritized. Local pale lenses of calcareous spicules and lesser peloids and micritized bioclasts in matrix of sparry calcite cement. Heavy-mineral concentrate includes phosphatic brachiopod fragments. (description from Dover et al., 2004, p. 36 (Table 1)); [Howard Pass C-3 quad. 68°32.06', 157°32.8'. Lisburne Group (Picnic Group (Picnic Creek allochthon?); thin section is spong spiculite, possibly bioturbated. Spicules 10-30% of slide--spicules mostly siliceous but some calcareous and others pyritized. Local pale lenses of calcareous spicules and lesser peloids and micritized skeletals in sparry calcite cement matrix. (description from Harris E&R report dated Sept. 17, 1993; Shipment no. A-93-11)]
Location: Alaska Quadrangle: Howard Pass C-3
Lat.: 68o32.05 ' Long.: 157o32.8 '
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 Devonian-Mississippian (latest Devonian - Mississippian)
Formation: Lisburne Group (Rim Butte unit of Lisburne Group of Dumoulin and others (1993) (Mississippian))
CAI:Min: 2
Comment:Age: latest Devonian-Mississippian

Biofacies: Indeterminate

Shown as locality 56 on Sheet 2; map unit: Mlri

CAI no higher than 2

Occurrence(s)
No. Group Name Qty Notes
1 Conodonts 1 Pa element fragment Bispathodus? sp. indet. All conodonts identified by A.G. Harris

Title: Report on Referred Fossils ,  1993 (09/17)
This report is long (1.5 years) overdue, but I have been exceedingly busy writing papers, responding to reviewers and editors comments and preparing talks. I am finally returning to a partial E&R mode and your collections were at the top of the list.
Report by: Anita G. Harris
Referred by: Irv L. Tailleur , John S. Kelley
Age: Devonian-Mississippian (latest Devonian - Mississippian)
Formation: Lisburne Group
Comment:Age: latest Devonian-Mississippian
Biofacies: Indeterminate
Thin section description by Julie A. Dumoulin.
CAI: No higher than 2

Heavy-mineral concentrate: weathered and fresh, euhedral to anhedral pyrite, euhedral to anhedral dolomite, phophatic brachiopod fragments, and argillaceous flakes containing minute pyrite.

Occurrence(s)
No. Group Name Qty Notes
1 Conodonts 1 Pa element fragment Bispathodus? sp. indet.