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Sample Detail
of
Sample:
Sample No. 92ADo226B -- USGS No. DR 1477
Locality:
Field No. 92ADo226B
Description:
Howard Pass C-5. Lat. 68
o
37'30" N., Long. 158
o
51'50" W. Grayish-green chert and cherty argillite; fairly radiolarian-rich. (description from Dover et al., 2004, p. 52 (Table 2)); [Formation: Pennsylvanian-Triassic -- Etivluk? Howard Pass 1:250,000 C5 quadrangle, T. 9 S., R. 30 W., sec. 35; on low ridge 1 mile east of where tributaries of Rampart Creek converge, approx. 250 ft west of locality 92ADo225B. Lat. 68°37'34", long 158°51'50". (description from Blome and Reed E&R report dated June 23, 1993; Shipment no. A-92-9D)]
Location:
Alaska Quadrangle:
Howard Pass
C-5 Township&Range: 9 S. 30 W. Section: 35
Lat.: 68
o
37
'
30
"
Long.: 158
o
51
'
50
"
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:
Middle Triassic
(Middle Triassic (probably Ladinian))
Formation:
Imnaitchiak Chert
Comment:
Age: Middle Triassic (probably Ladinian)
Shown as locality 11 on Sheet 2; map unit: JlPip
Occurrence(s)
No.
Group
Name
Qty
Notes
1
Radiolarian
Poorly preserved assemblage including ?Eptingium sp. (heavy triradiate spine fragments).
radiolarians identified by C.D. Blome and K.M. Reed
2
Radiolarian
Triassocampe sp. (casts with little ornamentation)
Title:
Report on Referred Fossils
, 1993 (06/23)
Report by:
Charles D. Blome
,
Katherine M. Reed
Referred by:
J. H. Dover
Age:
Ladinian
(Middle Triassic (probably Ladinian))
Formation:
Etivluk Group
(Etivluk Group?)
Comment:
Age: Middle Triassic (probably Ladinian).
Occurrence(s)
No.
Group
Name
Qty
Notes
1
Radiolarian
Poorly preserved assemblage including:
2
Radiolarian
?Eptingium sp. (heavy triradiate spine fragments)
3
Radiolarian
Triassocampe sp. (casts with little ornamentation)