Reference Detail of

Report on Referred Fossils
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Stratigraphic range: Silurian? and Devonian
Kinds of fossils: Corals
Quadrangle or area: So. Brooks Range, Alaska
Shipment No.: A-60-27
Referred by: Brosge, William P.
Report prepared by: Oliver, William A., Jr.
Date: 02/27/1961

The following corals have been identified in the indicated collections, which are arranged in the order indicated on the transmittal form. All of the collections may represent rocks of lower Upper Devonian (Fransnian) age but only one collection is definitely of this age.

A summary of the coral data, with discussion of the significance attached to the genera that have been listed in reports A-60-23, -24, and -27 will accompany my final report which will cover your 1959 collection.


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Brief statement of problem and remarks (from collector):
Is Be 728 basal Siksikyuk or the base of a thrust plate of Devonian shale resting on Lisburne?
Is RR613 Kayak or Sadlerochet?
Are RR699 & 660 Lisburne or Devonian limestone like 60ABe 555 D and Be 557 of previous shipment?
Is RR613 Kayak or Devonian?
User Note module to be added
60ABe 683 , Philip Smith Mts , Black shaly limestone in dark gray silt shale and shaly sandstone. Upper graywacke, slate quartzite unit of Devonian slate-sandstone. (18.92 x 5.40 P. Smith). [description from transmittal sheet of W.P. Brosge, Oct. 27, 1960]
Pachyphyllum? sp.
Thamnopora sp.
syringoporoid
60ARr 741 , Arctic , Silty limestone and calcareous silt in muddy slate and graywacke. Upper graywacke, slate quartzite unit of Devonian slate sandstone. (13.63 x 7.45 Arctic).
Hexagonaria? sp.
60ABe 681 , Philip Smith Mts , E. Shale and quartzite . . . . . . . . 1004 ft.
D. Black shale and thin bedded ...dark gray quartzite . . . 15 ft.
C. Limestone, dark gray, coarse-grained, thin-bedded, ferruginous, contains shale chips. 25 ft.
B.Sandstone, light yellow coarse, gritty, thin-bedded . . . 10 ft.
A. Limestone gray, crystalline, thick-bedded . . 504 ft.
Fossils from unit C. Units B-C probably thin section of Devonian limestone-siltstone unit. (19.08 x 3.68 P. Smith). [description from transmittal sheet of W.P. Brosge, Oct. 27, 1960]
Cladopora sp.
rugose coral undet.
60ABe 684 , Philip Smith Mts , Limestone, medium gray, sphanitic, rough weathering. (18.37 x 5.51 P. Smith) [description from transmittal sheet of W.P. Brosge, Oct. 27, 1960]
cyathophylloid coral
Thamnopora sp.
massive stromatoporoid
60ARr 719 , Arctic , Silicified limestone at greenstone contact. (5.00 x 0.07 Arctic). [description from transmittal sheet of W.P. Brosge, Oct. 27, 1960]
Favosites sp.