Two trepostome bryozoans from the Assistance Formation (Permian, Roadian) near Lake Hazen, Ellesmere Island, Canada

The mid-Paleozoic deformation of lower Paleozoic subgreenschist-facies sediments of the Hazen fold belt in northern Ellesmere Island is represented predominantly by chevron-style folding. Folded multilayers display cleavage fans suggesting synchronous fold and cleavage formation. Bedding-parallel slip indicates a flexural slip mechanism of folding. The geometry of several large-scale anticlinoria has been interpreted as being due to formation of these structures over detachments and thrust ramps.The constant fold geometry, the parallel orientation of faults and large- and small-scale folds, and the axial-plane foliation are related to a single phase of folding with a migrating deformation front in the Hazen fold belt during the mid-Paleozoic orogeny. The minimum amount of shortening in the Hazen and Central Ellesmere fold belts has been estimated from surface geology to increase from 40–50% of the original bed length in the external southeastern part to 50–60% in the more internal northwestern part of the belts.The convergent, thin-skinned nature of the Hazen and Central Ellesmere fold belts indicates that the postulated transpressive plate motions during the accretion of Pearya did not affect the study area.

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The last glaciation and relative sea level history of Northwest Ellesmere Island, Canadian high arctic

Journal of Quaternary Science ◽

10.1002/jqs.3390050107 ◽

1990 ◽

Vol 5 (1) ◽

pp. 67-82 ◽

Cited By ~ 25

Author(s):

David J. A. Evans

Keyword(s):

Sea Level ◽

High Arctic ◽

Ellesmere Island ◽

Canadian High Arctic ◽

Relative Sea Level ◽

Last Glaciation ◽

History Of

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Law for special environments: jurisdiction over polar activities

Polar Record ◽

10.1017/s0032247400063646 ◽

1973 ◽

Vol 16 (104) ◽

pp. 701-705

Author(s):

Daniel Wilkes

Keyword(s):

United States ◽

Mexican American ◽

The United States ◽

Ellesmere Island ◽

Federal Judge ◽

High Seas

The T-3 ice island case involved two trials in the United States of a Mexican-American, Mario Escamilla, for allegedly causing the death of a Negro coworker, Bennie Lightsey, on an ice island then at lat 84°45.8'N, long 106°24.4'W, on the High Seas, about 240 km north of Ellesmere Island on 16 July 1970. A federal judge in Virginia allowed Escamilla's first trail to proceed without definitively deciding on objections to jurisdiction, for he expected a ruling on this point on appeal. Issues raised by that trial are covered elsewhere (Pharand, 1971; Wilkes, 1972).

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The first Tertiary (Paleocene) marine mollusks from the Eureka Sound Group, Ellesmere Island, Canada

Journal of Paleontology ◽

10.1017/s0022336000020461 ◽

1991 ◽

Vol 65 (2) ◽

pp. 242-248 ◽

Cited By ~ 12

Author(s):

Louie Marincovich ◽

William J. Zinsmeister

Keyword(s):

Atlantic Ocean ◽

South Dakota ◽

Arctic Ocean ◽

Canadian Arctic ◽

Ellesmere Island ◽

Marine Mollusks ◽

Molluscan Fauna ◽

Northern Atlantic ◽

Northern Alaska ◽

Northern Atlantic Ocean

The gastropod Drepanochilus pervetus (Stanton) and the bivalve Cytrodaria rutupiensis (Morris) occur in the Mount Moore Formation at Strathcona Fiord, west-central Ellesmere Island, northern Canada. They are the first marine mollusks identified from the Eureka Sound Group of the Canadian arctic islands. These mollusks correlate with Paleocene faunas of the Cannonball Formation of North Dakota and South Dakota, the Prince Creek Formation of northern Alaska, the Barentsburg Formation of Svalbard, and the Thanet and Oldhaven Formations of southeastern England. These occurrences imply that the earliest Tertiary Arctic Ocean molluscan fauna was compositionally distinct from coeval faunas of the northern Atlantic Ocean.

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