Sample Detail of
Sample: Sample No. 90ABd28
Locality: Field No. 90ABd28
Description: Brown-orange-weathering, dark gray, recrystallized lime mudstone with orange argillaceous partings, locally containing tabulate corals, syringoporoids, and crinoid ossicles. Collected from uppermost beds on east side of quarry on east side of haul road, 0.5 mile east of Dietrich River, approximately 1.25 miles west (and slightly south) of peak 3760 ft; sec. 16, T. 35 N., R. 10 W., lat. 67o 51.1 min., long. 149o 49.2 min., Chandalar D-6 quadrangle. Submitted as Ordovician "OSm", but mapped as "Skajit".
Location: Alaska Quadrangle: Chandalar D-6
Township&Range: 35N 10W Section: 16
Lat.: 67o51.1 ' Long.: 149o49.2 '
Reference
Title: Report on Referred Fossils ,  1991 (04/05)
All sample and residue weights are given in a table at the end of this report.

The age range (in relation to the Frasnian conodont zonation) early Late Devonian samples is also shown on a chart at the end of this report.

Twenty-six of the 62 samples were barren; I suppose this is to be expected when your down to rocks of last resort.
Report by: Anita G. Harris
Referred by: Julie A. Dumoulin , Thomas E. Moore , Robert B. Blodgett , Warren J. Nokleberg , Allison Till
Age: Middle Ordovician-Middle Devonian
CAI:Min: 5
Comment:This is a resampling of a quarry site that produced relatively biostratigraphically useless material last year (Field no. 89AD43); the recovery this year is virtually identical in terms of content and biostratigraphic utility.

BIOFACIES: probably shallow water
AGE: Middle Ordovician-Middle Devonian
CAI=5

Weight: 5.8 kg, >20 Mesh insol. residue: 120 g., 20-200 Mesh insol. residue: 70 g.

Occurrence(s)
No. Group Name Qty Notes
1 Conodonts 7 Panderodus sp. indet. elements fragments
2 Conodonts 1 indet. bar or blade fragment