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HomeMy WebLinkAboutGMC Data Report No. 051 PALEONTOLOGY RECORD Pan American Petroleum Corp. Moose Creek Unit No. 1 Sec. 29, T 4 N, R 3 W (C.R.M.) Depth 0 - 600 900-990 990-1080 1080-1470 1470-1980 1980-2190 2190-2880 2220-2880 2880-3400 3400-3670 Age Upper Cretaceous Santonian Upper Cretaceous Upper Cretaceous Santonian Upper Cretaceous Upper Cretaceous Remarks Unfossiliferous Contains an entirely arenaceous fauna, including Cribrostomoides cretacea. Age Upper Cretaceous. Good arenaceous fauna, including Cribros- tomoides cretacea, Cribrostomoides cali- forniensis, Marssonella oxycona, Silico- si~moilina sp., rare occurrence of Globo- truncana lapparenti, and single broken specimen of .Mar~inulina curvisepta. Contains good arenaceous fauna as above. No age determination closer than Upper Cretaceous can be made for this interval. Contains good arenaceous fauna as above. Arenaceous fauna including Cribrostomoides cretacea with a rare occurence of Globotruncana lapparenti. First occurrence of Ammobaculites fra8mentarius. Ammobaculites fragmentarius, Cribrosto- moides cretacea, Marssonella oxycona, Silicosigmoilina sp., Cribrostomoides californiensis, Glomospire sp., a few radiolarians, and scattered occurrence of long-ranging Calcareous foraminifera. Age Santonian. Fauna as above, including radiolarians. Sparse arenaceous fauna of Cribrostomoides cretacea, Glomospire sp., Radiolarians, and rare occurrence of Globotruncana lapparenti. 3670-3790 3790-3880 3880-4120 4120-4450 4450-4810 4810-4900 4900-5110 5110-5630 5630-5700 5700-5750 5750-6030 6030-6180 PALENONTOLOGY RECORD Pan American Petroleum Corp. Moose Creek Unit No. 1 Sec. 29, T 4 N, R 3 W (C.R.M.) No fossils were found except Radiolarians. No fossils were found. Washed residues from this interval are very sandy, a few arenaceious foraminifera and Inoceramus prisms, Radiolarians, and very rare primitive arenaceous foramini- fera are present. Sandy as above with some soft coal. Upper Cretaceous Samples very sandy. Only fossils present are Inoceramus prisms and Radiolarians. First occurrence of red shale. Radiolarians are present. Also present is a sparse foraminiferal fauna different than any fauna seen to date in Copper River Basin. This fauna not identified in TAZLINA well. Same fauna as above. Probably Upper Creta- ceous, but not identical to any assemblage found in UNION NO. 1TAZLINA. Santonian Arenaceous fauna of Glomospire sp. and Cribrostomoides cretacea. A few long- ranging Calcareous foraminifera and Radiolarians plus Vaivulineria marianosi. (Reported from the Santonian and Ceno- manian of California.) Sparse fauna, mostly arenaceous foraminifera, with Raiolarians. Cenomanian Arenaceous fauna as above plus a few Calcareous foraminifera, including Hedber- ~ella planispira, a planktonic species which has been reported from the Cenomanian and Albian. No species were found in the samples known to be restricted to the Albian, conclusions are the interval is Cenomanian. Mostly Radiolarians, with rare occurrence of foraminifera, none of which is a time marker. Samples are very sandy and more or less unfossiliferous. -2- 6180-6250 2650-6610 6610-6760 6760-6780 6780-6950 6950-7010 7010-7070 7070-7150 7150-7400 7400-7520 7520-7610 7610-7650 7650-7860 5756-7820 PALEONTOLOGY RECORD Pan American Petroleum Corp. Moose Creek Unit No. 1 Sec. 29, T 4 N, R 3 W.(C.R.M.) No fossils were found. Washed residues diluted with mud additives. No fosSils were found. Washed residues diluted with mud additives. Unfossiliferous. Rare foraminifera not adequate for age determination. Washed residues are very sandy. No fos- sils were found. ~ Unfossiliferous. Rare foraminifera and tiny gastropods. Unfossiliferous. Unfossiliferous. Unfossiliferous. Lower Cretaceous Sparse fauna of Calcareous foraminifera. Probably Lower Cretaceous. Unfossiliferous. No fossils were found. SIDEWALL CORES No fossils were found. Paleontologic identification made from unwashed ditch samples by Mr. J. B. Garrett, Pan American Petroleum Corporation, Research Center, Houston, Texas. -3-