Upper Cretaceous Marine Strata on Somerset Island, N.W.T.

1973 ◽  
Vol 10 (8) ◽  
pp. 1337-1339 ◽  
Author(s):  
James Dixon ◽  
William S. Hopkins Jr. ◽  
Owen A. Dixon

Upper Cretaceous marine shale and limestone beds are present in a faulted outlier in the vicinity of Creswell Bay, Somerset Island. The contained microflora indicates a Senonian age and the strata are correlated to the Kanguk Formation of the Arctic islands.

2021 ◽  
pp. M57-2016-6
Author(s):  
K. M. Fallas ◽  
J. Dixon ◽  
P. K. Hannigan ◽  
B. C. MacLean ◽  
R. B. MacNaughton

AbstractUpper Jurassic to Paleocene siliciclastic strata comprise the Cordilleran Foreland tectono-sedimentary element of Canada's northern Interior Plains. These strata record 4 major packages deposited on top of Paleozoic shelf strata on the northwest margin of the Canadian craton. These packages are: a Jurassic interval interpreted to record deposition associated with extension at the Arctic Ocean margin, a Lower Cretaceous, dominantly marine interval deposited on the flexural margin of the foreland basin, and two Upper Cretaceous intervals of west-to-east progradational marine and non-marine strata deposited on the orogenic margin. The full succession has been affected by Cordilleran deformation within Mackenzie Plain, Franklin Mountains, and Colville Hills. Organic-rich shale is documented from Lower and Upper Cretaceous successions, but these strata only reach thermal maturity in deeper parts of the basin, close to the Canadian Cordillera. Potential reservoirs exist within sandstone-dominated intervals throughout the succession, though some locally lack a top seal. One natural gas discovery has been reported from Upper Cretaceous sandstone of the Little Bear Formation at the Stewart D-57 well in southeastern Mackenzie Plain. Oil sourced from Upper Cretaceous shale is reported from the Mackenzie Plain East Mackay B-45 well.


Fact Sheet ◽  
2018 ◽  
Author(s):  
Paul C. Hackley ◽  
Catherine B. Enomoto ◽  
Brett J. Valentine ◽  
William A. Rouse ◽  
Celeste D. Lohr ◽  
...  

1991 ◽  
Vol 10 (2) ◽  
pp. 227-246 ◽  
Author(s):  
Jiří (George) Strnad

Only four known diamond locations are near and north of the Arctic Circle. What is believed to be the oldest diamond find in this region was made in the gravels of the Pasvik River on the U.S.S.R.-Finland-Norway border. This was followed by the discovery of the northern fields of the Yakutian diamondiferous province in the U.S.S.R. Somerset Island in the Canadian Arctic Archipelago and southwestern Greenland conclude this short list. Geographically close to the Arctic but south of the Arctic Circle are the diamond locations on the shore of the Beloye More or White Sea and in the Timan Range (U.S.S.R.), western and eastern Alaska (U.S.A.), and in the Mackenzie Mountains (Canada). Farther south and partly in the Subarctic are locations in the Ural Mountains and Yakutia (U.S.S.R.), as well as in Labrador and Saskatchewan (Canada). While the discoveries in Canada and Greenland belong to our times, the history of the others is hidden in ancient records. For the Yakutian fields, which are of major economic importance and among the world leaders in the production of gem quality diamonds, an ancient reference dating back to 1375 is presented here for the first time.


2008 ◽  
Vol 30 (2) ◽  
pp. 137-161 ◽  
Author(s):  
A. Katherine Patton ◽  
James M. Savelle

AbstractThe Thule whale bone house is one of the most impressive features of the arctic landscape. Bowhead whale bone elements within 18 Thule winter houses along the southeastern coast of Somerset Island (Nunavut) were mapped and the patterning of these elements was investigated through the application of a bowhead architectural utility index and through principal components analysis. The results suggest that while whale bone was initially selected for dwelling construction on the basis of architectural value, socio-economic status may be reflected in the positioning of certain bone elements. Informed by historic North Alaskan Inupiat analogies, the positioning of various elements within the entrance tunnel in particular appears to have been related to whale symbolism.


2001 ◽  
Vol 12 (3) ◽  
Author(s):  
Jens Rydell ◽  
Heikki Roininen ◽  
Kenelm Philip ◽  
Ali Karhu

During the Swedish-Canadian icebreaker-based expedition to the Nearctic in summer 1999 (July and early August), moths and butterflies (Lepidoptera) were collected during short, helicopter-aided visits to eight sites in the Canadian archipelago, three sites on the Canadian mainland near the arctic coast and also at Thule Air Force Base in north Greenland. Some of the visited sites (notably those on Melville Peninsula, Somerset Island and King William Island) have not previously been investigated with respect to their insect faunas. Several records thus represent species range extensions. They generally corroborate an earlier hypothesis, based on a floristic zonation scheme, which has been used as a framework for understanding the distribution of Arctic butterflies.


2005 ◽  
Vol 52 ◽  
pp. 17-25
Author(s):  
Johan Lindgren

Teeth, jawbone fragments and vertebrae of an unusual mosasaurine mosasaur, Dollosaurus, have been collected from marine strata of latest early Campanian age in the Kristianstad Basin, southern Sweden. This material enables a detailed analysis of dental and vertebral characters, which, in turn, are used to tentatively distinguish Dollosaurus from the closely related globidensine Prognathodon. However, the evidence is contradictory, and two evolutionary scenarios are possible: (1) the two genera represent separate offshoots of a single lineage; or (2) Dollosaurus represents the most basal ‘Prognathodon-like’ taxon known so far.


Polar Record ◽  
2013 ◽  
Vol 50 (1) ◽  
pp. 1-30 ◽  
Author(s):  
William Barr ◽  
Nadine Forestier-Blazart ◽  
Jean-Claude Forestier-Blazart

ABSTRACTLieutenant de vaisseau Joseph René Bellot, (1826–1853) participated, as second-in command, in Lady Franklin's private expedition in search of her missing husband on board Prince Albert, under the command of Captain William Kennedy in 1851–1852. Having wintered at Batty Bay on the east coast of Somerset Island, Kennedy and Bellot sledged south in the spring of 1852, to Bellot Strait, which they discovered. Having passed through the strait, they crossed Peel Sound, and continued west across Prince of Wales Island to Ommanney Bay, then back across Prince of Wales Island, north to Cape Walker, and back to Batty Bay via the north coast of Somerset Island and Prince Leopold Harbour. They discovered no trace of the missing Franklin expedition. In 1853 Bellot again volunteered to go to the Arctic, this time as supernumerary on board the supply ship Phoenix, Captain Edward Inglefield. From Beechey Island, Bellot volunteered to carry dispatches north up Wellington Channel to Captain Sir Edward Belcher who was in that vicinity. Having been driven out of sea on an ice-floe, Bellot disappeared during a gale, and it is assumed that he was blown off the ice into the water and was drowned. Memorials to Bellot may be found on Beechey Island, at Greenwich, England and at Rochefort, France, but probably the most enduring memorial to him is the name ‘Bellot Strait’, applied by Kennedy to the narrow strait between Somerset Island and Boothia Peninsula which represents an integral component of one variant of the northwest passage.


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