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Authors: Rowett, Charles L.
Editors:
Date: /1969
Title: Upper Palaeozoic Stratigraphy and Corals from the East-Central Alaska Range, Alaska
23 , , 120 p. , 13 pls., 20 text-figs.
Host: Arctic Institute of North America Technical Paper:
Document Type: Article\Abst.\Chapter\report
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RM-8 , Mt Hayes , Limestone, medium crystalline, grey to black, silty; bedding thin to medium, regular, with thin interbeds of calcareous shale; strike N 70 deg. W, dip 65-70 deg., overturned toward the southeast; elevation approximately 2,750 feet; exposures along east side of Richard Highway near mile post 212, Northern Rainbow Mountain area (Text-fig. 3). (from Rowett, 1969, p. 118); [One of the few fossiliferous horizons known to occur in these rocks is located along the east side of the Richardson Highway approximately one-mile south of the confluence of these two strams, near mile-post marker 212 (Locality RM-8 of ROWETT, 1969). This fossiliferous zone, however, encompasses only a few feet of strata and fossils are sparse and poorly preserved. (description from Rowett and Timmer, 1973, p. 1)]
Cryptophyllum striatum n. sp.
Cladochonus sp.
Michelinia sp.
Linoproductus sp.
Juresania sp.
Stenoscisma sp.
?Institina sp.
?Chaoiella sp.
Pseudoparalegoceras hansoni
unidentified pectenoid pelecypods
bryozoa
phillipsid trilobites
MC-13 , Mt Hayes , McCallum Creek sequence; approx 850 ft stratigraphically above base of exposures in the southern Rainbow Mountain area at an elevation of approx. 5,300 ft (see Rowett, 1969, text-fig. 3, loc MC-13). Collector: C.L. Rowett, 1963-1966. (description from Rowett, 1975, USGS Prof. Paper 823-D, p. 68); [Limestones, medium to coarsely crystalline, grey, in part silicified; bedding medium to thick, with irregular interbeds of silicified silts; extensively jointed; strike N45°W, variable; dip, vertical to slightly overturned, variable; elevation approximately 5,350 feet, south side of Rainbow Mountain, Southern Rainbow Mountain area (Text-fig. 3).(description from Rowett, 1969, p. 118)]
Timania rainbowensis n. sp.
large coiled gastropods (?Omphalotrochus)
poorly preserved productid brachiopods
poorly preserved spiriferid brachiopods
Pseudofusulinella sp.
MC-5 , Mt Hayes , McCallum Creek sequence; approx 950 ft stratigraphically above base of exposures in the southern Rainbow Mountain area at an elevation of approx 5,250 ft (see Rowett, 1969, text-fig. 3, loc MC-5). Collector: C.L. Rowett, 1963-1966. (description from Rowett, 1975, USGS Prof. Paper 823-D, p. 68); [Limestones, finely crystalline, grey to green, with large fraction of volcanic detrital grains and extensively silicified; bedding medium to thick, with lenticular interbeds of silicified green silts showing graded bedding; strike N45°W, variable; dip, vertical or near vertical; elevation 5,250 feet, south side of Rainbow Mountain, Southern Rainbow Mountain area (Text-fig. 3). (description from Rowett, 1969, p. 119)]
Syringopora katoi n. sp.
Plicatifera sp.
Derbyia sp.
well-preserved fenestrate bryozoa
MC-6 , Mt Hayes , McCallum Creek sequence; approx 370 ft stratigraphically above base of exposures in the southern Rainbow Mountain area at an elevation of about 5,900 ft on summit ridge (see Rowett, 1969, text-fig. 3, loc. MC-6). Collector: C.L. Rowett, 1963-1966. (description from Rowett, 1975, USGS Prof. Paper 823-D, p. 68); [Limestone and mudstones, alternating; bedding thin to medium, regular; strike N60°W, dip 60°SW; elevation approximately 5,900 feet, summit of south end of Rainbow Mountain which there trends NNW, Southern Rainbow Mountain area (Text-fig. 3). (description from Rowett, 1969, p. 118)]
Heritschioides summitensis n. sp.
a few poorly preserved brachiopods
unidentified marine algae
schwagerinid Fusulinidae
MC-7 , Mt Hayes , McCallum Creek sequence; approx 300 ft stratigraphically above base of exposures in the southern Rainbow Mountain area at an elevation of about 5,850 ft on summit ridge (see Rowett, 1969, text-fig. 3, loc. MC-7). Collector: C.L. Rowett, 1963-1966. (description from Rowett, 1975, USGS Prof. Paper 823-D, p. 68); [Mudstones, grey to red-brown, locally silty or calcareous; bedding thin, regular; strike N60°W, dip 59°SW; elevation approximately 5,850 feet, summit ridge of south end of Rainbow Mountain, there trending NNW, Southern Rainbow Mountain area (Text-fig. 3). (description from Rowett, 1969, p. 118)]
Bothrophyllum cf. B. pseudoconicum Dobrolyubova
?Caninia sp.
Michelinia sp.
scattered poorly preserved brachiopods
MC-3 , Mt Hayes , McCallum Creek sequence; approx. 1,000 ft stratigraphically above base of exposures in the southern Rainbow Mountain area at an elevation of approx. 5,300 ft (see Rowett, 1969, text-fig. 3, loc. MC-3). Collector: C.L. Rowett, 1963-1966. (description from Rowett, 1975, USGS Prof. Paper 823-D, p. 68); [Limestone, finely crystalline, grey to green, rich in volcanic material and extensively silicified; bedding medium to thick, with irregular interbeds of graded silicified silts; strike northwest, variable; dip, 35°NE; elevation approximately 5,300 feet, south side of Rainbow Mountain, Southern Rainbow Mountain area (Text-fig. 3). (description from Rowett, 1969, p. 119)]
Bothrophyllum cf. B. pseudoconicum Dobrolyubova
Neospirifer sp.
Choristites sp.
?Unispirifer sp.
Yakovlevia sp.
Linoproductus sp.
?Calliprotonia sp.
?Kochiproductus sp.
Rugosochonetes sp.
Denticulophora sp.
Pseudofusulinella sp.
?Eoparafusulina sp.
MC-1 , Mt Hayes , McCallum Creek sequence; about 1,600 ft above base of exposures in the southern Rainbow Mountain area at at elevation of about 4,600 ft (see Rowett, 1969, text-fig. 3, loc MC-1). Collector: C.L. Rowett, 1963-1966. (description from Rowett, 1975, USGS Prof. Paper 823-D, p. 67); [Limestones, fine to medium crystalline, grey to green, rich in volcanic material and extensively silicified; bedding medium to thick, with interbeds of silicified green graded silts; strike N62°W, dip 72°SW; elevation approximately 4,000 feet, south side of Rainbow Mountain, Southern Rainbow Mountain area (Text-fig. 3). (description from Rowett, 1969, p. 119)]
?Pseudobradyphyllum sp. A
?Bradyphyllum sp. A
Bothrophyllum sp. A
Spiriferella sp.
Choristites sp.
Reticulatia sp.
Linoproductus sp.
Yakovlevia sp.
?Kochiproductus sp.
?Pseudofusulinella sp.
MC-0 , Mt Hayes , McCallum Creek sequence; about 3,900 ft stratigraphically above base of exposures in the southern Rainbow Mountain area at elevation of about 4,000 ft (see Rowett, 1969, text-fig. 3, loc. MC-0). Collector: C.L. Rowett, 1963-1966. (description from Rowett, 1975, USGS Prof. Paper 823-D, p. 67); [Limestone, finely crystalline (micrite), grey, bedding medium to thick, commonly lenticular; strike northwest, dip 45°, overturned; elevation approximately 4,000 feet; strata are exposed in a large south-facing talus slope on the south side of Rainbow Mountain, Southern Rainbow Mountain area (Text-fig. 3). (description from Rowett, 1969, p. 119)]
Timania sp. A
?Sinopora sp.
RC-17 , Mt Hayes , McCallum Creek sequence; approx 5,180 ft stratigraphically above base of exposures; south side of Rainy Creek about 1.4 miles upstream from confluence with Delta River; elev approx 3,200 ft, upper Delta River area (see Rowett, 1969, text-fig. 4, loc RC-17). Collector: C.L. Rowett, 1963-1966. (description from Rowett, 1975, USGS Prof. Paper 823-D, p. 68); [Limestone and shale, interbedded; limestone tan, medium crystalline, silty, fossiliferous; bedding thin to medium, regular; intervening shales compact, dark grey, locally fossiliferous; strike N45°W, dip 20°SW in lower part of exposures, increasing to approximately 40°SW in upper part of section; elevation (unit RC-17) approximately 3,200 feet; south side of the valley of Rainy Creek near its confluence with Delta River, Upper Delta River area (Text-fig. 4)(description from Rowett, 1969, p. 119)]; [488.1 feet above base of section (description from Petocz, 1970)]
Caninia petoczi n. sp.
Linoproductus sp.
Stenoscisma sp.
Eoparafusulina sp.
Schwagerina sp.
Pseudofusulinella sp.
?Schubertella sp.
DR-14 , Mt Hayes , McCallum Creek sequence; approx 5,180 ft stratigraphically above base of exposures; bluff on east side of Delta River 1.3 miles upstream from confluence with Rainy Creek; elev approx 2,700 ft, upper Delta river area (see Rowett, 1969, text-fig. 4, loc. DR-14). Collector: C.L. Rowett, 1963-1966. (description from Rowett, 1975, USGS Prof. Paper 823-D, p. 68-69); [Limestone, medium crystalline, grey; bedding thick; strike approximately N45°W, dip 55 to 70°SW, variable due to nearby minor fault; elevation 2,700 feet; bluffs on east side of Delta River, Upper Delta River area (Text-fig. 4). (description from Rowett, 1969, p. 119)]; [412.1 feet above base of section (description from Petocz, 1970)]
Caninia petoczi n. sp.
Eoparafusulina sp.
?Schubertella sp.
Schwagerina sp.
common but poorly preserved brachiopods
RC-18 , Mt Hayes , McCallum Creek sequence; approx 5,480 ft stratigraphically above base of exposures; small knoll on terrace, south side of Rainy Creek about 0.3 mile west of locality RM-17 at an elevation of 3,300 ft, upper Delta River area (see Rowett, 1969, text-fig. 4, loc. RC-18). Collector: C.L. Rowett, 1963-1966. (description from Rowett, 1975, USGS Prof. Paper 823-D, p. 68); [Limestone, medium, crystalline, light coloured; bedding thin to medium, regular, with thin interbeds of argillaceous limestone, siltstone and shale; strike N45°W, dip 40°SW; elevation, approximately 3,300 feet; small knoll above the south side of Rainy Creek, Upper Delta River area (Text-fig. 4). (description from Rowett, 1969, p. 120)]; [541.8 feet above base of section (description from Petocz, 1970)]
?Clisiophyllum sp. B
Neospirifer sp.
?Spiriferellina sp.
Spiriferella sp.
?Camerisma sp.
Antiquatonia sp.
DR-16 , Mt Hayes , McCallum Creek sequence; approx 5,480 ft above base of exposures; bluff on west side of Delta River about 0.1 mile north of locality DR-15 at same elevation; upper Delta River area (see Rowett, 1969, text-fig. 4, loc. DR-16). Collector: C.L. Rowett, 1963-1966. (description from Rowett, 1975, USGS Prof. Paper 823-D, p. 69); [Limestone, medium to coarsely crystalline, grey; bedding thin to medium, regular, strike northwest, dip variable due to slumping; elevation 2,700 feet; bluffs overgrown by vegetation on west side of Delta River, Upper Delta River area (Text-fig. 4). (description from Rowett, 1969, p. 120)]
Auloclisia deltense n. sp.
Clisiophyllum sp. A
Hindia sp.
a few poorly preserved brachiopods
a few poorly preserved schwagerinid fusulinids
VV-21a , Mt Hayes , McCallum Creek sequence; approx 5,510 ft stratigraphically above base of exposures; north side of small west-flowing tributary of McCallum Creek about 1.1 miles east of confluence; elev 4,150 ft, McCallum Creek area (see Rowett, 1969, text-fig. 4, loc. VV-21a). Collector: C.L. Rowett, 1963-1966. (description from Rowett, 1975, USGS Prof. Paper 823-D, p. 69); [Limestone, grey to black, finely crystalline, silty; bedding medium to thick, regular; strike N70°W, dip 74°NE, variable due to minor faults; elevation approximately 4,150 feet; limestone outcrops in north side of "Volcanic Valley", a small tributary of McCallum Cree, McCallum Creek area (Text-fig. 4). (description from Rowett, 1969, p. 120)]
Timania cf. T. schmidti Stuckenberg
VV-21b , Mt Hayes , McCallum Creek sequence; approx 50 ft stratigraphically higher than strata at locality VV-21a; elev 4,200 feet, McCallum Creek area (see Rowett, 1969, text-fig. 4, loc. VV-21b). Collector: C.L. Rowett, 1963-1966. (description from Rowett, 1975, USGS Prof. Paper 823-D, p. 69); [Limestone, grey to black, finely crystalline; bedding thin to medium, regular; strike N70°W, dip 50-70°NE, variable; elevation 4,200 feet; north side of "Volcanic Valley", McCallum Creek area (Text-fig. 4). (description from Rowett, 1969, p. 120)}
Durhamina alaskaensis n. sp.
Sinopora minatoi n. sp.
Pseudofusulinella sp.
Schwagerina sp.
Sinopora sp.
DR-15 , Mt Hayes , McCallum Creek sequnece; approx 5,680 ft stratigraphically above base of exposures; bluff on west side of Delta River about 1.6 miles south of confluence with Rainy Creek; elev 2,700 ft (see Rowett, 1969, text-fig. 4, loc. DR-15). Collector: C.L. Rowett, 1963-1966. (description from Rowett, 1975, USGS Prof. Paper 823-D, p. 69); [Limestone, finely crystalline, grey to black; bedding thick, regular; strike northwest, deip 30-50°SE, variable due to slumping; elevation 2,700 feet; bluff on west side of Delta River, Upper Delta River area (Text-fig. 4). (description from Rowett, 1969, p. 120)]
Durhamina sutherlandi n. sp.
Sinopora sp.