Reference Detail of

Report on Referred Fossils
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Stratigraphic range: Undetermined
Kinds of fossils: Pollen-Spores
Quadrangle or area: Arctic, Christian Quads.
Shipment No.: A-72-24
Referred by: Brosge, William P. , Dutro, J. Thomas, Jr.
Report prepared by: Scott, R. A.
Date: 11/13/1972

This report deals with palynological samples from the following field localities: 72ABe235, 235B, 236, 290, 323.

None of these samples yielded plant microfossils, and they have been discarded.


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Brief statement of problem and remarks (from collector):
Collections are from a subgraywacke unit that is probably Devonian, but which rests on Triassic or younger rocks over a large area. Paleozoic plants (Mamay, 11/4/60) and Devonian spores (Scott, 12/16/65) occur in a 1960 collection (60ABe661, USNM 41849) from the same locality as B236.

Do the spores indicate that all the subgraywacke is the same age? Could it be in part Mesozoic?
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72ABe235 , Christian , Christian quad., 67 deg. 54' N., 145 degrees 18' W. Orange weatehring platy subgraywacke containing chips of shale and bottom marks; interbedded dark gray micaceous silty shale and clay shale. 72ABe235 for spores. (Plants B234 submitted separately) (description from transmittal sheet of Brosge)
72ABe235B , Christian , Christian quad., 67 degrees 54' N., 145 degrees, 18' W. Interbedded sandstone, shale and siltstone with ironstone and plants. 72ABe235B spores. (Plants 235B submitted separately)
72ABe236 , Christian , Christian quad., 67 degrees 51' N., 145 degrees 24' W. (same locality as 60ABe661). Subgraywacke and grit; beds 1/2 - 1 1/2 ft thick; thin partings of black shale and siltstone. 72ABe236 for spores. (Plants B236 submitted separately) (description from transmittal sheet of Brosge)
72ABe290 , Arctic , Arctic quad., 68 degrees 20 1/2' N., 145 degrees 51 1/2' W. Sandstone, orange and olive weathering , dark gray, fine grained limonitic, thin to medium beds; one thin bed of yellow calcareous sandstone; black shale and ironstone, plant fragments. 72ABe290 for spores. (Microfossil sample submitted separately) (description from transmittal sheet of Brosge)
72ABe323 , Arctic , Arctic quad., 68 degrees 20' N., 144 degrees 17 1/2' W. Olive to orange weathering, ine, quartzitic subgraywacke; black shale and siltstone with plant scraps. 72ABe323 for spores. (description from transmittal sheet of Brosge)