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Arctic Creek facies, Arctic National Wildlife Refuge, Northeastern Alaska

Conference ·
OSTI ID:6546392
; ; ;
The Arctic Creek section is dissimilar to the typical Cretaceous section exposed elsewhere in Ignek Valley. The more typical Ignek Valley sequence consists of Kingak Shale (Jurassic to Neocomian), Kemik Sandstone (Hauterivian), Pebble Shale (Hauterivian-Barremian), Hue Shale (Aptian.to Santonian), and turbidites of the Canning Formation (Campanian to Paleocene). The two main differences that distinguish the Arctic Creek section from the typical Ignek Valley section are: (1) lack of the regionally persistent Kemik Sandstone in the Arctic Creek section, and (2) lack of Albian turbidites in the typical Ignek Valley section. The Arctic Creek section is more similar to the Cretaceous section exposed at Bathtub Ridge about 180 km to the southeast. The Bathtub Ridge section consists of black shale with local siltstone beds (Jurassic to Lower Cretaceous), manganiferous shale, interbedded shale and siltstone turbidites (Albian), and sandstone turbidites (Albian.). The authors believe that the Arctic Creek and Bathtub Ridge sections were once part of a continuous depositional basin, and that the Arctic Creek section has been thrust northward into juxtaposition with the typical Ignek Valley strata.
OSTI ID:
6546392
Report Number(s):
CONF-880301-
Country of Publication:
United States
Language:
English

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