scholarly journals Postglacial Isostatic Movement in Northeastern Devon Island, Canadian Arctic Archipelago

ARCTIC ◽  
1966 ◽  
Vol 19 (3) ◽  
Author(s):  
F. Muller ◽  
W. Barr
Keyword(s):  
Canadian Arctic ◽  
Canadian Arctic Archipelago ◽  
Devon Island

Submerged drainage patterns in Barrow Strait, Canadian Arctic

1976 ◽  
Vol 13 (2) ◽  
pp. 305-311 ◽  
Author(s):  
Brian D. Bornhold ◽  
Nancy M. Finlayson ◽  
David Monahan
Keyword(s):  
Canadian Arctic ◽  
Original Model ◽  
Normal Faults ◽  
Canadian Arctic Archipelago ◽  
Drainage Basins ◽  
Fluvial Erosion ◽  
Devon Island ◽  
Drainage Patterns ◽  
Somerset Island ◽  
East West

Recent detailed bathymetric maps of Barrow Strait enabled a reconsideration of the Tertiary fluvial erosion model used to account for the physiography of the Canadian Arctic Archipelago. Five distinct drainage basins were distinguished within Barrow Strait, including both dendritic and rectangular drainage patterns. The latter were controlled by normal faults along the Precambrian–Paleozoic contact in Peel Sound and Barrow Strait.Several changes in the original model are proposed, including the placement of the main east–west drainage divide through Somerset Island and across Barrow Strait and southern Wellington Channel to Devon Island.

scholarly journals Reports on Current Work Temperatures in the Devon Island Ice Cap, Arctic Canada

1976 ◽  
Vol 16 (74) ◽  
pp. 277
Author(s):  
W.S.B. Paterson
Keyword(s):  
Steady State ◽  
Canadian Arctic ◽  
Canadian Arctic Archipelago ◽  
Climatic Warming ◽  
Devon Island ◽  
The Past ◽  
Ice Cap ◽  
Last Glaciation ◽  
Temperature Ranges ◽  
The Difference

Abstract Temperatures have been measured in a 299 m bore hole that reaches the base of the ice near the divide of the main ice cap on Devon Island in the Canadian Arctic Archipelago. Temperature ranges from — 23.0°C at a depth of 20 m to — 18.4°C at the bottom. The difference between surface and bottom temperatures is about 1.5 deg less than expected for a steady state. Recent climatic warming seems the most likely explanation of the discrepancy. The temperature gradient in the lowest 50 m is approximately linear and corresponds to a geothermal heal flux of 1.5 h.f.u. This value may be invalid, however, because temperatures at and below this depth have probably been perturbed by changes of surface temperature during the past several thousand years, particularly by the warming at the end of the last glaciation. A detailed analysis of the results is in progress.

Reassessment of Ischnacanthus? scheii Spjeldnaes (Acanthodii, Ischnacanthiformes) from the latest Silurian or earliest Devonian of Ellesmere Island, arctic Canada

2013 ◽  
Vol 50 (9) ◽  
pp. 945-954 ◽  
Author(s):  
Carole J. Burrow
Keyword(s):  
Canadian Arctic ◽  
Biological Species ◽  
Ellesmere Island ◽  
Canadian Arctic Archipelago ◽  
Devon Island ◽  
Thin Sectioning ◽  
Bone Fragments ◽  
Cornwallis Island ◽  
North Greenland ◽  
Fin Spines

Articulated specimens of jawed fishes, and assemblages of disarticulated elements that can be assigned to a single biological species, are extremely rare from pre-Devonian deposits. The acanthodian species Ischnacanthus? scheii Spjeldnaes is based on a monospecific assemblage, comprising fin spines, dentigerous jaw bone fragments and scales, from the ?Siluro-Devonian boundary beds of the Devon Island Formation in central west Ellesmere Island, Canadian Arctic Archipelago, Nunavut. A new examination of the type material, in particular by scanning electron microscopy and thin sectioning of scales, shows that the species is a porosiform poracanthodid that is now assigned to Radioporacanthodes scheii comb. nov. Scales of the same species are also recognized from the upper Pridoli of Cornwallis Island and the ?Pridoli or Lochkovian of north Greenland.

scholarly journals The geology of Devon Island north of 76°, Canadian Arctic Archipelago

1998 ◽  
Author(s):  
U Mayr ◽  
T de Freitas ◽  
B Beauchamp ◽  
G Eisbacher
Keyword(s):  
Canadian Arctic ◽  
Canadian Arctic Archipelago ◽  
Devon Island

A Late Silurian fauna from the Sutherland River Formation, Devon Island, Canadian Arctic Archipelago

1960 ◽  
Author(s):  
A J Boucot ◽  
A Martinsson ◽  
R Thorsteinsson ◽  
O H Walliser ◽  
H B Whittington ◽  
...  
Keyword(s):  
Canadian Arctic ◽  
Canadian Arctic Archipelago ◽  
Devon Island

scholarly journals Reports on Current Work Temperatures in the Devon Island Ice Cap, Arctic Canada

1976 ◽  
Vol 16 (74) ◽  
pp. 277-277
Author(s):  
W.S.B. Paterson
Keyword(s):  
Steady State ◽  
Canadian Arctic ◽  
Canadian Arctic Archipelago ◽  
Climatic Warming ◽  
Devon Island ◽  
The Past ◽  
Ice Cap ◽  
Last Glaciation ◽  
Temperature Ranges ◽  
The Difference

AbstractTemperatures have been measured in a 299 m bore hole that reaches the base of the ice near the divide of the main ice cap on Devon Island in the Canadian Arctic Archipelago. Temperature ranges from — 23.0°C at a depth of 20 m to — 18.4°C at the bottom. The difference between surface and bottom temperatures is about 1.5 deg less than expected for a steady state. Recent climatic warming seems the most likely explanation of the discrepancy. The temperature gradient in the lowest 50 m is approximately linear and corresponds to a geothermal heal flux of 1.5 h.f.u. This value may be invalid, however, because temperatures at and below this depth have probably been perturbed by changes of surface temperature during the past several thousand years, particularly by the warming at the end of the last glaciation. A detailed analysis of the results is in progress.

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