AINA Logo
Publications

 


Northern highlights of Canada's centennial
Arctic, v. 20, no. 4, Dec. 1967, p. 222-226, ill.
ASTIS record 10017
PDF

Reports among other projects: Yellowknife was named Territorial Capital of the Northwest Territories, eleven first ascents of Centennial Range peaks were made; 22 men, airlifted into the area where Franklin's ships disappeared, searched King William Island and Boothia Peninsula for Sir John Franklin's grave; and in May 1967, a group attached to the Polar Continental Shelf Project, of the Department of Energy, Mines and Resources, Canada, carried out hydrographic, gravity, and astronomical investigations from drifting ice and near the North Pole.


Glaciation of Chagvan Bay area, southwestern Alaska   /   Porter, S.C.
Arctic, v. 20, no. 4, Dec. 1967, p. 227-246, figures
ASTIS record 10018
PDF

Morphologic and stratigraphic evidence in this area indicates that a four-fold succession of glaciers originating in the Ahklun Mountains, spread over the coastal lowlands as broad piedmont lobes. The Kemuk and Clara Creek glaciations are considered Pre-Wisconsin, the Chagvan and Unaluk glaciations Wisconsin in age. Radiocarbon dates for the Unavuk and Chagvan drifts are 8910 ± 110 yr and >45,000 yr respectively. A broad bedrock channel buried beneath unconsolidated preglacial and glacial sediments was cut when relative sea level was 200 ft below its present level. Relationships of sedimentary fills to this and to a younger buried channel point to late Tertiary submergence of the Bering Shelf followed by eustatic changes related to fluctuations of Pleistocene glaciers.

Au voisinage de la baie Chagvan, les indices morphologiques et stratigraphiques révèlent qu'à au moins quatre reprises, des glaciers descendus des monts Ahklun se sont répandus sur les basses-terres côtières en formant de larges lobes de piedmont. La plus ancienne moraine, déposée au cours de la glaciation de Kemuk, est profondément altérée et complètement recouverte par de la moraine plus récente. Les berges morainiques massives de la glaciation de Clara Creek, la seconde en âge et la plus étendue des avancées glaciaires, ont été grandement modifiées par l'érosion et les mouvements de masse, mais les sédiments qui les composent sont moins altérés que ceux de la moraine de Kemuk. Les moraines construites durant les glaciations moins étendues de Chagvan et d'Unaluk montrent une topographie moins modifiée, caractérisée par des crêtes basses et arquées et de nombreux lacs de fonte (Kettle) : les datations au radiocarbone assignent un âge minimum de 8910 ± 110 ans à la moraine d'Unaluk et de plus de 45,000 à la moraine de Chagvan. Un large chenal, enfoui sous des sédiments préglaciaires et glaciaires non-consolidés, a été creusé dans la roche en glace à une époque où le niveau de la mer se trouvait à 200 pieds (60 m) ou plus sous le niveau actuel. Les rapports entre, d'une part, les remblaiements sédimentaires et, d'autre part, ce chenal et un autre chenal fossile plus récent indiquent une submergence finitertiaire de la plateforme de Béring, suivie de changements eustatiques liés aux fluctuations des glaciers pléistocènes.


On some planktonic protozoa taken from the track of the drift station ARLIS I, 1960-61   /   Tibbs, J.F.
Arctic, v. 20, no. 4, Dec. 1967, p. 247-254, figure, tables
ASTIS record 10019
PDF

Twenty-six species of protozoans identified from ARLIS I plankton collections are discussed with respect to their geographic and depth distribution. Diversity of species and abundance of organisms were both greater in the eastern than in the western collections. Plankton was generally sparse in the upper 30 m. of water. The greatest abundance of plankton was at depths of about 70 m. and about 400 m., both regions of temperature maxima. The common protozoa were present in both depth zones. It is suggested that some of the phytoplankton are maintained through the dark season by heterotrophic means. The luminescence of Noctiluca was noted to be of a shade of blue different from that of the metazoans collected.

Notes sur quelques protozoaires planctoniens recueillis sur le trajet de la station flottante ARLIS I, 1960-61. L'auteur discute de la distribution géographique et bathymétrique de vingt-six espèces de protozoaires identifiées dans les récoltes de plancton d'ARLIS I. Les récoltes orientales présentaient une plus grande diversité des espèces et une plus grande abondance d'organismes que les récoltes occidentales. Le plancton était généralement rare dans les premiers 30 m d'eau : il était le plus abondant à des profondeurs d'environ 70 m et 400 m, qui sont des niveaux de température maximum. Les protozoaires communs étaient présents dans les deux zones. L'auteur suppose qu'un peu de phytoplancton survit à la nuit polaire par des moyens hétérotrophes. On a noté que la luminescence de Noctiluca était d'une nuance bleue différente de celle des métazoaires récoltés.


Postglacial uplift at Tanquary Fiord, northern Ellesmere Island, Northwest Territories   /   Hattersley-Smith, G.   Long, A.
Arctic, v. 20, no. 4, Dec. 1967, p. 255-260, ill., figure, table
ASTIS record 10020
PDF

Constructs a postglacial uplift curve for the upper part of Tanquary Fiord from radiocarbon ages of marine shells and peat. Data show the head of the fiord to be clear of glacier ice by at least 6500 yr BP. During 6500-5000 yr BP isostatic uplift was at a rate of about 3.5 m/century and subsequently about 25 cm/cent.

On a construit, à partir d'échantillons de coquillages marins et de tourbe datés au radiocarbone, une courbe du relèvement postglaciaire pour la partie supérieure du fiord de Tanquary, dans le nord de l'île d'Ellesmere. Les données montrent que la partie amont du fiord était libre de glace il y a moins de 6,500 ans. Entre 6,500 et 5,000 av.p., le relèvement isostatique s'est produit au rythme d'environ 3,5 m par siècle : par la suite, le rythme a été d'environ 25 cm/siècle.


The Canadian North in the next hundred years   /   McTaggart-Cowan, P.D.
Arctic, v. 20, no. 4, Dec. 1967, p. 261-262
ASTIS record 10021
PDF

Suggests research on a year-round basis, incl the physiological, sociological and economic fields; use of nuclear power, satellite communications, etc to open up the Middle North in the next hundred years.


The Soviet drifting ice station, NORTH-67   /   Brewer, M.C.
Arctic, v. 20, no. 4, Dec. 1967, p. 263-265
ASTIS record 55206
PDF

In April 1967, one of the Arctic Research Laboratory's aircraft made two landings at the Soviet Drifting Ice Station NORTH-67. The station was on a floe about 2 metres thick which was somewhat cracked around the perimeter. The runway was in excellent shape, about 5,000 feet long and 125 wide, slick and hard. It was on a refrozen lead attached to the camp floe. Snow was scraped off, rather than dragged, with the use of tractors similar to small U.S. farm tractors. The first landing was made on 15 April while the aircraft was en route from Point Barrow to Fletcher's Ice Island T-3. The Soviet Drifting Ice Station was then at 76°40'N., 164°40'W., almost on a line between Point Barrow and T-3. The pilots decided to land at the Soviet station in part to encourage friendly relations between two groups engaged in comparable scientific research and combating the same austere environment and in part to satisfy a very human curiosity. Pilots Clifford Alderfer and Richard Dickerson, with their passengers from the Arctic Research Laboratory, Frank Spik, Al Magnuson, Simeon Akpik, and Loeb Wood, were cordially welcomed, and stayed from 1650 to 1830. ...


Remarks on Eskimo sealing and the harp seal controversy   /   Foote, D.C.
Arctic, v. 20, no. 4, Dec. 1967, p. 267-268
ASTIS record 10022
PDF

Considers the importance of the seal harvest to Eskimos of Alaska, Canada and Greenland and gives statistics on catches, prices, incomes and costs of modernization of the seal-hunting industry. The catastrophic decline of sealskin prices and buyers boycott beginning 1965 as a result of the controversy over killing methods of harp seal pups has destroyed a viable industry badly needed in an economically depressed region. Eskimos seldom encounter harp seal pups, and use humane killing methods.


Eskimo administration in Alaska   /   Rogers, G.W.
Arctic, v. 20, no. 4, Dec. 1967, p. 269-270
ASTIS record 10023
PDF

Traces the rise of Eskimo political power, beginning with their induction into the Armed Services during World War II, and analyzes the economic and political impact of the land freeze on Alaska's development. Credit is given to the role of "The Tundra Times", founded 1962 by Howard Rock, in speaking of the aspirations and rights of the Eskimos.


© Arctic Institute of North America. Records from this database may be used freely for research and educational purposes, but may not be used to create databases or publications for distribution outside your own organization without prior permission from ASTIS.