Geological reconnaissance of northeastern Ellesmere Island, District of Franklin

Christie, R L

doi:10.4095/100555

Cited by 25 publications

(23 citation statements)

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“…The sandstone lithology is primarily a fine-to medium-grained sandstone (Mial 1979). Initial geologic mapping of this area has been done by Christie (1964), Mial (1978), and Trettin (1971. Maxwell (1981) described five climatic regions in the Canadian Arctic Islands.…”

Section: Study Areamentioning

confidence: 99%

The contemporary moss assemblages of a high arctic upland, northern Ellesmere Island, N.W.T., Canada

Farge¹

1989

Can. J. Bot.

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A quantitative analysis of contemporary moss assemblages is presented for a fault block at the southern end of Piper Pass, northern Ellesmere Island, N.W.T. (82°12′N, 68°31′W). Twenty-eight stands are analyzed using the two-way indicator species analysis, resulting in seven major species groups and five major stand groups. Physical parameters correlated with the stand data show soil moisture and slope to be the most important factors influencing the distribution of moss assemblages. Sodium, organic content, and specific conductivity are also correlated with the vegetation data. Detrended correspondence analysis confirms these stand relationships. The interdependence of physical, chemical, and vegetation data is also discussed. Distribution patterns of the species groups within the stand groups are analyzed by means of a percent frequency diagram. A direct gradient analysis of the vegetation below a late-lying snowbank also demonstrates the selective distribution of species in terms of environmental gradients.

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Section: Study Areamentioning

confidence: 99%

The contemporary moss assemblages of a high arctic upland, northern Ellesmere Island, N.W.T., Canada

Farge¹

1989

Can. J. Bot.

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“…At these locations the cherts fracture into blocky hand specimens which are dark grey to black sometimes with a surface sheen due to graphitic material. Surface salts deposited by evaporation of upward moving groundwaters were not observed though various sulphate salts have been reported in the area (Christie, 1964;1967). Above certain concentrations such salts can adversely affect durability of concrete.…”

Section: Introductionmentioning

confidence: 90%

“…strata belonging to the Cape Rawson Group are exposed (Christie, 1964). These beds have suffered only low-grade metamorphism and in lithology are greywackes, impure sandstones, phyllites, cherts and argillaceous limestones.…”

Section: Introductionmentioning

confidence: 99%

Some unusual alkali-expansive aggregates

Gillott

Swenson

1973

Engineering Geology

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/npsi/ctrl?lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?lang=fr Access and use of this website and the material on it are subject to the Terms and Conditions set forth at http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur.Engineering Geology, 7, 3, pp. 181-195, 1973-12-01 Some unusual alkali-expansive aggregates Gillott, J. E.; Swenson, E. G.Engineering Geology, 7(1973)

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“…They support a large ice cap up to 900 m thick, from which trunk glaciers descend to 560-240 m asl near Lake Hazen (Hattersley-Smith et al 1969;Narod and Clarke 1983). The mountains trend southwest-northeast along the structural grain and are formed of Paleozoic limestone, sandstone, slate, and chert pebble conglomerate (Christie 1964;Trettin 1994). The chert pebble conglomerate outcrops in central and southern Grant Land Mountain nunataks (Christie 1964) and is a conspicuous glacial erratic.…”

Section: Physiography and Climatementioning

confidence: 99%

“…The mountains trend southwest-northeast along the structural grain and are formed of Paleozoic limestone, sandstone, slate, and chert pebble conglomerate (Christie 1964;Trettin 1994). The chert pebble conglomerate outcrops in central and southern Grant Land Mountain nunataks (Christie 1964) and is a conspicuous glacial erratic.…”

Section: Physiography and Climatementioning

confidence: 99%

Late Quaternary glacial history of Lake Hazen Basin and eastern Hazen Plateau, northern Ellesmere Island, Nunavut, Canada

Smith¹

1999

Can. J. Earth Sci.

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The glacial history of the broad interior of northeastern Ellesmere Island is first documented here. Studies of glacial geomorphology and marine and lacustrine sedimentology indicate that the region was inundated by cold-based ice emanating from the Grant Land Mountains sector of the Innuitian Ice Sheet during the last glacial maximum. Retreat of coalescent, marine-based Ellesmere and Greenland ice from Robeson Channel had started by 10.1 ka BP and reached the mouths of many fiords along southeast Hazen Plateau by 8 ka BP. Proglacial meltwater channels emanating from plateau ice caps, crosscut lateral meltwater channels marking the retreat of Grant Land Mountain ice. The crosscutting is interpreted to reflect an early Holocene growth of plateau ice caps concurrent with the retreat of marinebased margins. This suggests that initial regional ice retreat was eustatically controlled. Stabilization of glacier margins at the heads of fiords occurred by 7.5-7 ka BP, after which land-based margins retreated as little as 10 km by 6 ka BP. Across much of northeastern Hazen Plateau, however, Grant Land Mountain ice retreated more rapidly. This more rapid retreat was accentuated by the impoundment of proglacial lakes against the plateau to the south and the subsequent breakup of ice by calving. Glaciers continued to occupy much of Lake Hazen Basin at 5.3 ka BP, after which they broke up rapidly in a proto-Lake Hazen, retreating to margins at, or behind, those of the present by 5 ka BP.Résumé : L'histoire glaciaire de la large région intérieure du nord-est de l'île d'Ellesmere est reconstituée ici pour la première fois. Les études de la géomorphologie glaciaire et de la sédimentologie marine et lacustre indiquent que la région fut envahie par un glacier à base froide qui émanait du secteur des monts Grand Land, de l'Inlandsis Innuitien, durant l'apogée du Dernier Glaciaire. La régression dans le chenal de Robeson du glacier formé de l'union des glaciers d'Ellesmere à base marine et de Groenland, a débuté vers 10,1 ka avant le Présent; et vers 8 ka avant le Présent la marge du glacier avait reculé jusqu'aux embouchures de nombreux fjords localisés le long de la région sud-est du Plateau de Hazen. Les chenaux proglaciaires écoulant l'eau de fonte issue des calottes glaciaires du plateau recoupaient les chenaux latéraux chargée d'eau de fonte dérivée du glacier du mont Grand Land. Ce recoupement des chenaux reflète la croissance des calottes glaciaires sur le plateau durant l'Holocène précoce, concurremment au retrait des marges à base marine. Ce qui suggère que le retrait initial du glacier dans la région était sous influence eustatique. La stabilisation des marges des glaciers à la tête des fjords est apparue vers 7,5-7 ka avant le Présent, par la suite les marges glaciaires basées sur terres avaient régressé à peine de 10 km vers 6 ka avant le Présent. Cependant, dans une bonne partie du nord-est du Plateau de Hazen le glacier du mont Grant Land régressait plus rapidement. Ce retrait plus rapide fut accéléré par l'endiguement...

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Geological reconnaissance of northeastern Ellesmere Island, District of Franklin

Cited by 25 publications

References 0 publications

The contemporary moss assemblages of a high arctic upland, northern Ellesmere Island, N.W.T., Canada

The contemporary moss assemblages of a high arctic upland, northern Ellesmere Island, N.W.T., Canada

Some unusual alkali-expansive aggregates

Late Quaternary glacial history of Lake Hazen Basin and eastern Hazen Plateau, northern Ellesmere Island, Nunavut, Canada

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