Journal articles: 'Ellesmere'

1

Williams, Tara. "The Ellesmere dragons." Word & Image 30, no. 4 (October 2, 2014): 444–54. http://dx.doi.org/10.1080/02666286.2014.964543.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Jackson, H. R., and L. Koppen. "The Nares Strait gravity anomaly and its implications for crustal structure." Canadian Journal of Earth Sciences 22, no. 9 (September 1, 1985): 1322–28. http://dx.doi.org/10.1139/e85-136.

Full text

Abstract:

A negative free-air gravity anomaly is associated with Nares Strait, the waterway that separates Ellesmere Island and Greenland. Two east–west gravity profiles that cross Ellesmere Island and Nares Strait were collected. A low with values in the range of −100 to −120 mGal (−1000 to −1200 μm/s2) was observed, and two-dimensional crustal models were created to identify the cause of the anomaly. The gravity anomaly cannot be attributed wholly to the bathymetry of the strait or to the sedimentary rocks underlying the strait. Crustal models that reproduce the anomaly have a M discontinuity that slopes under Nares Strait towards Ellesmere Island so that the crust beneath Ellesmere Island is thickened. The anomaly is similar to those associated with ancient and modern suture zones, regions of collided continental crust. Plate reconstructions suggest Nares Strait is a collisional boundary between the North American Plate (Ellesmere Island) and the Greenland Plate. The gravity anomaly supports this interpretation of Nares Strait.

APA, Harvard, Vancouver, ISO, and other styles

3

FENLON, IAIN. "THE TENBURY AND ELLESMERE PARTBOOKS." Music and Letters 74, no. 1 (1993): 158—a—158. http://dx.doi.org/10.1093/ml/74.1.158-a.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Hodgson, D. A. "The last glaciation of west-central Ellesmere Island, Arctic Archipelago, Canada." Canadian Journal of Earth Sciences 22, no. 3 (March 1, 1985): 347–68. http://dx.doi.org/10.1139/e85-035.

Full text

Abstract:

Locally abundant ice-marginal landforms lie in a 500 km long zone with a distal margin 10–60 km west of the margins of modern ice caps on central Ellesmere Island. Much of this drift belt, at the heads of the fiords, was deposited by the oscillating margin of a coalesced predecessor of the modern ice caps between 9000 and 7000 BP. The ice continued to retreat east of the present margin, and readvanced to its modern limit in a middle and late Holocene cooler climate. Unweathered but undated till and striations at the base of the drift suggest that the belt does not mark the western limit of central Ellesmere Island ice in the last glaciation. The limit lies an unknown distance downfiord; glaciers in the fiords may have floated. No reliable evidence was found for a complete ice cover of western Ellesmere Island and Eureka Sound in the last glaciation; nevertheless much of central and southern Ellesmere Island and Devon Island may have been glaciated by a regime that left few erosional or depositional landforms. Alternatively, emergence of an unglaciated Eureka Sound, underway by 9000 BP, may have followed combined peripheral glacioisostatic depression by encircling ice caps, whereas at the drift belt emergence was less and later, controlled only by central Ellesmere Island ice.

APA, Harvard, Vancouver, ISO, and other styles

5

France, R. L., J. Svoboda, and H. W. Taylor. "Latitudinal distribution of cesium-137 fallout in 1990 on Saxifraga oppositofolia from Ellesmere Island, Canada." Canadian Journal of Botany 71, no. 5 (May 1, 1993): 708–11. http://dx.doi.org/10.1139/b93-081.

Full text

Abstract:

During the first ski traverse of Ellesmere Island in spring 1990, purple saxifrage (Saxifraga oppositifolia) was collected at 10 sites from 76 to 82°N. Measured 137Cs levels in this cushion plant displayed a progressive decrease in activity north of 78°, reflecting past global patterns of radionuclide fallout. Lower 137Cs activity at the southern end of Ellesmere Island may reflect a northward shift of the distribution maximum since a previous latitudinal survey conducted in 1979–1980. Levels of 137Cs in three species of lichens were consistently higher than those for nearby saxifrage, possibly owing to the larger exposure to fallout for much of the year and the slower rate of lichen growth. In support of previous research, no 134Cs was detected, which indicated that Chernobyl fallout had not been deposited in significant quantities at these extreme northern latitudes. Specific activities in 1990 of saxifrage samples were compared with similar samples collected during 1979–1980 to derive an effective half-life of 6.2 ± 1.0 years for northern Ellesmere Island. Key words: cesium, fallout, Ellesmere Island, saxifrage, half-life.

APA, Harvard, Vancouver, ISO, and other styles

6

Johnson, L. N. "David Chilton Phillips, Lord Phillips of Ellesmere, K.B.E. 7 March 1924 — 23 February 1999." Biographical Memoirs of Fellows of the Royal Society 46 (January 2000): 377–401. http://dx.doi.org/10.1098/rsbm.1999.0092.

Full text

Abstract:

David Phillips was born on 7 March 1924 in Ellesmere, Shropshire, a small country town with a population then of 2000, on the border between England and Wales. His father, Charles Harry Phillips, was a Master Tailor and a Wesleyan Methodist local preacher. His mother, Edith Harriet Phillips (née Finney), was a London-trained midwife, the organist at Ellesmere Methodist Church and a member of the Ellesmere Urban District Council. She was the daughter of Samuel Finney, who was one-time secretary of the Midland Miners' Federation, a Member of Parliament 1916-22, and also a Primitive Methodist local preacher. David's unusual middle name is the maiden surname of his mother's great-grandmother and it was a reminder that the family was supposed to be related to the Pilgrim Father James Chilton, who sailed on the Mayflower. David was known as Chilton Phillips in Ellesmere. There was one sister who was four years older than David. She left home at fourteen to train as a child nurse, later became a telephonist and married. Tragically, she died in 1942 from diabetes.

APA, Harvard, Vancouver, ISO, and other styles

7

Fjellberg, Arne. "Collembola of the Canadian high arctic. Review and additional records." Canadian Journal of Zoology 64, no. 10 (October 1, 1986): 2386–90. http://dx.doi.org/10.1139/z86-355.

Full text

Abstract:

A revised list of species from the Queen Elizabeth Islands is given, including new records from Ellesmere, Devon, Cornwallis, Bathurst, King Christian, and Ellef Ringnes islands. Fifty species are reported (43 named and 7 unnamed), with the highest number from Ellesmere Island (41). About 75% of the species in the area have a circumpolar or holarctic distribution.

APA, Harvard, Vancouver, ISO, and other styles

8

Atkinson, Nigel. "A statistical technique for determining the source area of glacially transported granite erratics in the Queen Elizabeth Islands, Nunavut." Canadian Journal of Earth Sciences 44, no. 1 (January 1, 2007): 43–59. http://dx.doi.org/10.1139/e06-067.

Full text

Abstract:

This paper develops a technique that utilizes spatial and compositional trends in granite erratics distributed across the eastern and northwestern Queen Elizabeth Islands to discriminate between glacial dispersal trains originating from the Precambrian Shield of Ellesmere Island and the Canadian mainland. The distribution of glacially transported granite erratics in the eastern and northwestern Queen Elizabeth Islands defines a coherent pattern of regional dispersal from the Precambrian Shield of eastern Ellesmere Island. Principal components and cluster analyses demonstrate that most erratics within this dispersal train cluster within the same compositional group. Other members of this group represent outcrops on eastern Ellesmere Island, which define the locations of possible source areas. However, other compositional groups, which are unique to outcrops on the mainland, are absent from this dispersal train. Collectively, these spatial and compositional trends suggest that granite erratics on southwest Ellesmere, Amund Ringnes, and Meighen islands occur within a single dispersal train that resulted from the westward expansion of the Innuitian Ice Sheet from the Precambrian Shield of eastern Ellesmere Island. This technique may determine what differences, if any, exist among the composition of granite erratics deposited by the westward expansion of the Innuitian Ice Sheet across the Queen Elizabeth Islands and those deposited by the northward expansion of the Laurentide Ice Sheet. Any such differences may be useful in determining whether granite erratics of presently unknown provenance elsewhere in the Queen Elizabeth Islands are of Laurentide or Innuitian origin.

APA, Harvard, Vancouver, ISO, and other styles

9

Cains, Anthony G., and Maria Fredericks. "The Bindings of the Ellesmere Chaucer." Huntington Library Quarterly 58, no. 1 (January 1995): 127–57. http://dx.doi.org/10.2307/3817900.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Arlow, Ruth. "Re The Blessed Virgin Mary, Ellesmere." Ecclesiastical Law Journal 17, no. 1 (December 11, 2014): 126. http://dx.doi.org/10.1017/s0956618x14001239.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Ovenden, Lynn. "Late Tertiary mosses of Ellesmere Island." Review of Palaeobotany and Palynology 79, no. 1-2 (October 1993): 121–31. http://dx.doi.org/10.1016/0034-6667(93)90042-s.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Jeffries, Martin O., Greta J. Reynolds, and John M. Miller. "First Landsat multi-spectral scanner images of the Canadian Arctic north of 80°N." Polar Record 28, no. 164 (January 1992): 1–6. http://dx.doi.org/10.1017/s0032247400020192.

Full text

Abstract:

AbstractLandsat images of northern Axel Heiberg Island and northern Ellesmere Island, including part of the Ellesmere Island National Park Reserve in the Canadian high Arctic, are presented. These are believed to be the first Landsat images ever to be obtained of this region, which is north of latitude 80°N and once thought to be beyond the meaningful imaging range of Landsat. A general description of glaciological phenomena in the almost cloud-free images, and some of the attributes of the Ellesmere Island National Park Reserve, demonstrates some of the features and processes that can be imaged by Landsat in the region. New findings concerning the state and position of the front of the surge-type Otto Glacier, icebergs in Otto Fiord, and the extent and surface morphology of the Nansen Ice Plug indicate the capabilities of Landsat to contribute to original glaciological research in the region.

APA, Harvard, Vancouver, ISO, and other styles

13

England, John, and Jan Bednarski. "Postglacial Isobases from Northern Ellesmere Island and Greenland: New Data." Géographie physique et Quaternaire 40, no. 3 (December 4, 2007): 299–305. http://dx.doi.org/10.7202/032650ar.

Full text

Abstract:

ABSTRACT Over seventy new 14C dates on former relative sea levels from Hall Land, northwest Greenland, and Clements Markham Inlet, northern Ellesmere Island, are combined with previous data to revise the regional isobases for this area. These isobases show : 1) a centre of maximum postglacial emergence over northwest Greenland extending to; 2) an intervening cell of lower emergence over northeast Ellesmere Island which was isostatically-dominated by the Greenland Ice Sheet; in turn, extending to 3) a higher centre of emergence over the Grant Land Mountains, northernmost Ellesmere Island, associated with the independent history of local ice caps there. Radiocarbon dates from raised marine shorelines show a 2000 year lag between glacial unloading on northwest Greenland and northernmost Ellesmere Island. This lag in glacioisostatic adjustments suggests a considerable range in the glacier response times and/or glacioclimatic regimes in this area. Throughout the area the last ice limit was ca. 5-60 km beyond present ice margins. Maximum emergence at these ice limits is marked by shorelines built into a full glacial sea which range from 124 m asl in Clements Markham Inlet to 150 m asl in Hall Land. This indicates that similar emergence (120-150 m) in other areas does not necessarily require the removal of entire ice sheets although this has been commonly assumed in the literature. The geophysical implications of this warrant consideration.

APA, Harvard, Vancouver, ISO, and other styles

14

Astanin, Dmitry M., and Viktoriya O. Plotnichenko. "THE SPATIAL STRUCTURE OF THE SETTLEMENT SYSTEM IN ELLESMERE ISLAND (NUNAVUT TERRITORY, CANADA." Architecton: Proceedings of Higher Education, no. 3(71) (September 29, 2020): 14. http://dx.doi.org/10.47055/1990-4126-2020-3(71)-14.

Full text

Abstract:

Within the framework of a project aimed at structuring the settlement system in Ellesmere Island (the territory of Nunavut, Canada), we explored the microclimate, topography, geological structure, fauna, available research background and existing infrastructure of the locality. Based on our findings, we have developed natural recreation, environmental, eco-cultural, and tourist recreation frameworks to specify planning characteristics and identified the main planning constraints that determine the geometry of the settlement pattern. An optimal settlement model has been developed for the central-eastern part of Ellesmere Island with the Dobbin-Scorbey Bay conurbation elaborated in detail. A functional zoning concept is suggested for the main conurbation of Ellesmere Island; an individual domed residential cell has been designed. Thus, by simulating an environment designed for comfortable living in extreme cold climate conditions, a design proposal has been developed that would ensure effective settlement patterns in northern areas and solve the problem of uneven population density in Canada and the Arctic as a whole.

APA, Harvard, Vancouver, ISO, and other styles

15

Ernst, Andrej, and Hans Arne Nakrem. "Lower Permian Bryozoa from Ellesmere Island (Canada)." Paläontologische Zeitschrift 81, no. 1 (March 2007): 17–28. http://dx.doi.org/10.1007/bf02988378.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

England, John, I. Rod Smith, and David JA Evans. "The last glaciation of east-central Ellesmere Island, Nunavut: ice dynamics, deglacial chronology, and sea level change." Canadian Journal of Earth Sciences 37, no. 10 (October 1, 2000): 1355–71. http://dx.doi.org/10.1139/e00-060.

Full text

Abstract:

During the last glacial maximum of east-central Ellesmere Island, trunk glaciers inundated the landscape, entering the Smith Sound Ice Stream. Accelerator mass spectrometry (AMS) dates on individual shell fragments in till indicate that the ice advanced after 19 ka BP. The geomorphic and sedimentary signatures left by the trunk glaciers indicate that the glaciers were polythermal. The configuration and chronology of this ice is relevant to the reconstruction of ice core records from northwestern Greenland, the history of iceberg rafting of clastic sediments to northern Baffin Bay, the reopening of the seaway between the Arctic Ocean and Baffin Bay, and the regional variability of arctic paleoenvironments. Deglaciation began with the separation of Ellesmere Island and Greenland ice at fiord mouths ~8-8.5 ka BP. Ice reached fiord heads between 6.5 and 4.4 ka BP. Trunk glacier retreat from the fiords of east-central Ellesmere Island occurred up to 3000 years later than in west coast fiords. This later retreat was favoured by (1) impoundment by the Smith Sound Ice Stream in Kane Basin until ~8.5 ka BP, which moderated the impact of high summer melt recorded in nearby ice cores between ~11.5 and 8.5 ka BP; (2) the shallow bathymetry and narrowness (<2 km) of the east coast fiords, which lowered calving rates following separation of Innuitian and Greenland ice; and (3) the likelihood of higher precipitation along east Ellesmere Island. Glaciers throughout the field area readvanced during the late Holocene. The greater advance of coastal glaciers is attributed to their proximity to the North Water polynya in Baffin Bay.

APA, Harvard, Vancouver, ISO, and other styles

17

Denyszyn, Steven W., Henry C. Halls, Don W. Davis, and David A. D. Evans. "Paleomagnetism and U–Pb geochronology of Franklin dykes in High Arctic Canada and Greenland: a revised age and paleomagnetic pole constraining block rotations in the Nares Strait regionThis is a companion paper to Denyszyn, S.W., Davis, D.W., and Halls, H.C. Paleomagnetism and U–Pb geochronology of the Clarence Head dykes, Arctic Canada: orthogonal emplacement of mafic dykes in a large igneous province. Canadian Journal of Earth Sciences, 46(3): 155–167." Canadian Journal of Earth Sciences 46, no. 9 (September 2009): 689–705. http://dx.doi.org/10.1139/e09-042.

Full text

Abstract:

U–Pb baddeleyite ages and paleomagnetic poles obtained for dykes on Devon Island and Ellesmere Island in the Canadian Arctic and the Thule region of Greenland show that they are associated with the Franklin magmatic event. This study is the only one devoted to Franklin igneous rocks where a primary paleomagnetic remanence and U–Pb age have been obtained from the same rocks. Ages from this study range from 721 to 712 Ma, but paleomagnetic directional data show no clear age progression. The paleomagnetic poles from each of the two regional subsets are significantly different at the 95% confidence level from paleomagnetic results previously published for the Franklin event in the Canadian Shield. The difference in the pole locations can be accounted for, to first approximation, by a simple model of early Cenozoic block rotations among the North American plate, Greenland, and a hypothesized ancient microplate comprising Ellesmere, Devon, Cornwallis, and perhaps Somerset islands. A new grand-mean paleopole for the Franklin event, including restoration of Greenland and the proposed “Ellesmere microplate” to North America, is located at (8.4°N, 163.8°E, A95 = 2.8°, N = 78 sites) and is a key pole for Neoproterozoic supercontinent reconstructions.

APA, Harvard, Vancouver, ISO, and other styles

18

Klaper, Eva M. "The mid-Paleozoic deformation in the Hazen fold belt, Ellesmere Island, Arctic Canada." Canadian Journal of Earth Sciences 27, no. 10 (October 1, 1990): 1359–70. http://dx.doi.org/10.1139/e90-146.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

19

Stewart, Robert EA, Erik W. Born, Rune Dietz, Mads Peter Heide-Jørgensen, Frank Farsø Rigét, Kristin Laidre, Mikkel Villum Jensen, Lars Ø. Knutsen, Sabrina Fossette, and J. B. Dunn. "Abundance of Atlantic walrus in Western Nares Strait, Baffin Bay Stock, during summer." NAMMCO Scientific Publications 9 (December 15, 2014): 123. http://dx.doi.org/10.7557/3.2611.

Full text

Abstract:

Atlantic walruses (Odobenus rosmarus rosmarus) belonging to the Baffin Bay subpopulation occur year round in the North Water polynya (NOW) between NW Greenland and eastern Ellesmere Island (Canada). They are hunted for subsistence purposes by residents of the Qaanaaq area (NW Greenland) bordering the NOW to the east and by Canadian Inuit at the entrance to Jones Sound in Nunavut. During the open-water period NW Greenland is virtually devoid of walruses which concentrate along eastern and southern Ellesmere Island at this time of the year. To determine the abundance of walruses in the NOW area, aerial surveys were conducted in August of 1999, 2008, and 2009. In July 2009, nine satellite-linked transmitters were deployed in nearby Kane Basin. Surveys on 9 and 20 August 2009 along eastern Ellesmere Island were the most extensive and were augmented with concomitant data on haul-out and at water surface activity from three (1 F, 2 M) of the nine tags that were still functioning. We therefore focus on the 2009 surveys. Walruses were observed on the ice and in water primarily in Buchanan Bay and Princess Marie Bay where the remaining functional tags were located. The Minimum Counted population (MCP) was 571 on 20 August. Adjusting the MCP of walruses on ice for those not hauled out, the estimate of abundance of walruses in the Baffin Bay stock was 1,251(CV=1.00, 95% CI = 1,226) when adjusted by the proportion of tags ‘dry’ at the time of the survey and 1,249 (CV=1.12, 95% CI = 1,370) when adjusted by the average time tags were dry. The surveys did not cover all potential walrus summering habitat along eastern Ellesmere Island and are negatively biased to an unknown degree.

APA, Harvard, Vancouver, ISO, and other styles

20

Blake, Weston. "Glaciated landscapes along Smith Sound, Ellesmere Island, Canada and Greenland." Annals of Glaciology 28 (1999): 40–46. http://dx.doi.org/10.3189/172756499781821814.

Full text

Abstract:

AbstractBoth the Ellesmere Island and Greenland coasts of Smith Sound, at 78°20' N to 78°50' N, exhibit exceptionally well-sculptured and heavily striated Precambrian bedrock. The glacial features were created by the southward flow of the “Smith Sound Ice Stream”, which overrode Pim Island (550 m), where Smith Sound is > 500 m deep and 40 km wide. The Smith Sound Ice Stream was the drainageway to Baffin Bay for ice derived from the coalescence of the Innuitian and Greenland ice sheets over Kane Basin, the shallowest part (much of it <200m) of the Nares Strait system, in late-Wisconsinan (Weichselian) time. The north-south oriented glacial features along the outermost coasts of Smith Sound contrast markedly with the present-day eastward flow of outlet glaciers from the Prince of Wales Icefield (Ellesmere Island) and the westward flow of outlet glaciers from the Greenland ice sheet (Inglefield Land). The oldest 14C ages on marine shells and lake sediments show that glacier ice had receded from the Ellesmere Island coast of Smith Sound by 9000 14C yr BP. The heads of the three longest fiords, 120-140 km to the west and northwest, did not become ice-free until 450014C yr BP.

APA, Harvard, Vancouver, ISO, and other styles

21

Fortier, Mark. "Equity and Ideas: Coke, Ellesmere, and James I*." Renaissance Quarterly 51, no. 4 (1998): 1255–81. http://dx.doi.org/10.2307/2901967.

Full text

Abstract:

AbstractThis article argues that in the English legal disputes of 1616, specifically the conflict between common law and equity, the principles and systems of ideas, at least as much as the characters, of Coke, Ellesmere, and James were determinative of the triumph of equity. The first part of the essay traces the legal reasoning in the key cases of the dispute. The second part traces James's political theory from his time in Scotland through his dealings with the English Parliament to his pronouncements on the law in his Star Chamber speech of 1616. The article argues that there is a consistent line of principle which can be traced from Scotland to the Star Chamber speech and that James's thought has consequently had its most lasting effect on the relation in Anglo-American jurisprudence between common law and equity.

APA, Harvard, Vancouver, ISO, and other styles

22

Schiffer, Christian, and Randell Stephenson. "Regional crustal architecture of Ellesmere Island, Arctic Canada." Geological Society, London, Special Publications 460, no. 1 (June 12, 2017): 19–32. http://dx.doi.org/10.1144/sp460.8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Stephenson, R., K. Piepjohn, C. Schiffer, W. Von Gosen, G. N. Oakey, and G. Anudu. "Integrated crustal–geological cross-section of Ellesmere Island." Geological Society, London, Special Publications 460, no. 1 (May 23, 2017): 7–17. http://dx.doi.org/10.1144/sp460.12.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Lewkowicz, Antoni G. "Ice-wedge rejuvenation, fosheim peninsula, ellesmere Island, Canada." Permafrost and Periglacial Processes 5, no. 4 (October 1994): 251–68. http://dx.doi.org/10.1002/ppp.3430050405.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Eberle, Jaelyn J., and David A. Eberth. "Additions to the Eocene Perissodactyla of the Margaret Formation, Eureka Sound Group, Ellesmere Island, Arctic Canada." Canadian Journal of Earth Sciences 52, no. 2 (February 2015): 123–33. http://dx.doi.org/10.1139/cjes-2014-0195.

Full text

Abstract:

We describe early Eocene (Wasatchian) occurrences of the isectolophid Homogalax, tapiroids Heptodon posticus, Heptodon cf. H. posticus, and Heptodon sp., as well as early middle Eocene (Bridgerian) fossils of the brontothere Palaeosyops from localities in the Margaret Formation of the Eureka Sound Group on Ellesmere Island, Nunavut, Arctic Canada. Their occurrence on Ellesmere Island considerably extends the geographic range of these taxa, previously known from mid-latitude localities in British Columbia (only Heptodon), the Western Interior of the United States, and Asia (Homogalax, Heptodon, and Palaeosyops). We also place the fossil localities near Bay Fiord on central Ellesmere Island into a refined lithostratigraphic framework based upon data from three measured stratigraphic sections. Our stratigraphic data confirm the presence of two, stratigraphically distinct fossil assemblages — a late Wasatchian-aged lower assemblage and a Bridgerian-aged upper assemblage that were previously hypothesized by others based on faunal differences — that are separated by a 478 m thick stratigraphic gap that appears to lack fossil vertebrates. From a paleoenvironmental perspective, occurrence of the tapiroid Heptodon in the Eocene Arctic corroborates an hypothesis put forward by others that tapiroids are proxies for densely forested habitats, although they were adapted to a range of temperatures including near (or at) freezing temperatures of Eocene Arctic winters. Further, Arctic occurrences of tapiroids and brontotheres imply that these typical mid-latitude ungulate mammals were adapted to Arctic environments, thereby increasing the probability of Trans-Beringian dispersal during early and middle Eocene time.

APA, Harvard, Vancouver, ISO, and other styles

26

Anderson, Morgan, and Michael C. S. Kingsley. "Distribution and abundance of muskoxen (Ovibos moschatus) and Peary caribou (Rangifer tarandus pearyi) on Graham, Buckingham, and southern Ellesmere islands, March 2015." Rangifer 37, no. 1 (November 15, 2017): 97–114. http://dx.doi.org/10.7557/2.37.1.4269.

Full text

Abstract:

We flew a survey of southern Ellesmere Island, Graham Island, and Buckingham Island in March 2015 to obtain estimates of abundance for muskoxen and Peary caribou. Generally, muskoxen were abundant north of the Sydkap Ice Cap along Baumann Fiord, north of Goose Fiord, west and north of Muskox Fiord, and on the coastal plains and river valleys east of Vendom Fiord. Although few, they were also present on Bjorne Peninsula and the south coast between the Sydkap Ice Cap and Jakeman Glacier. We observed a total of 1146 muskoxen. Calves (approximately 10-months old) made up 22% of the observed animals. The population estimate was 3200 ± 602 SE (standard error) muskoxen, the highest muskox population size ever estimated for southern Ellesmere, Graham and Buckingham islands. This could be because previous efforts typically surveyed only a portion of our area or focused elsewhere, or the results were provided only as minimum counts rather than estimates of abundance. Regardless, our results indicate that the muskox population has recovered from low levels in 2005 of 312-670 (95% confidence interval [CI]) individuals. Peary caribou abundance appears to be low. We only saw 38 Peary caribou during our 2015 survey. This confounds appraisal of possible abundance change since 2005, when 109-442 caribou (95% CI) were estimated to inhabit the same surveyed area. We estimated 183 ± 128 SE Peary caribou, and suggest that their numbers are likely stable at low density on southern Ellesmere Island.

APA, Harvard, Vancouver, ISO, and other styles

27

Eberle, Jaelyn J., and John E. Storer. "Northernmost record of brontotheres, Axel Heiberg Island, Canada—Implications for age of the Buchanan Lake Formation and brontothere paleobiology." Journal of Paleontology 73, no. 5 (September 1999): 979–83. http://dx.doi.org/10.1017/s0022336000040828.

Full text

Abstract:

Eocene land vertebrates are rare, relatively recent, discoveries in the Canadian Arctic islands. The first were discovered in 1975 in Eocene-aged strata of the Eureka Sound Group, western Ellesmere Island, and reported by Dawson et al. (1976). Subsequent discoveries occurred in the 1980s in similar-aged strata on both Ellesmere and Axel Heiberg islands (Dawson, 1990; Dawson et al., 1993), bringing the tally of vertebrate families to over 30 (Marincovich et al., 1990; Dawson, 1990). The vertebrate fauna provides strong evidence for a mild, equable Arctic climate during the Eocene (Estes and Hutchison, 1980), corroborated by the paleoflora (Axelrod, 1984; Basinger, 1986, 1991). Supporting this interpretation, the isotopically-determined mean ocean surface temperature at 70°N was a mild 10-15°, a far cry from today's mean of −10° (Barron, 1987; Shackleton and Boersma, 1981; McKenna, 1980).

APA, Harvard, Vancouver, ISO, and other styles

28

Koerner, R. M., J. C. Bourgeois, and D. A. Fisher. "Pollen Analysis and Discussion of Time-Scales in Canadian Ice Cores." Annals of Glaciology 10 (1988): 85–91. http://dx.doi.org/10.1017/s0260305500004225.

Full text

Abstract:

Previous pollen analyses of ice cores from Devon and Ellesmere islands have contributed considerably to our knowledge of past climate in the Canadian High Arctic. In this case, in 1979, bulk (35–83 litres) water samples were melted down a hole 139 m deep, drilled to bedrock, 1.2 km from the top of the flow line in Agassiz Ice Cap in northern Ellesmere Island. Analysis of ten of these samples, plus some taken in very dirty ice from the melt tank during drilling 7 years ago, has yielded pollen concentrations that, together with the oygen-isotope (6) signatures, suggest the Agassiz Ice Cap began its growth during the last interglacial period. A discrepancy between melt-tank and bulk-sample pollen concentrations is believed to be due to a loss of pollen from the melt-tank samples during the drilling process.

APA, Harvard, Vancouver, ISO, and other styles

29

Spicer, Robert A., Jack A. Wolfe, and Douglas J. Nichols. "Alaskan Cretaceous-Tertiary floras and Arctic origins." Paleobiology 13, no. 1 (1987): 73–83. http://dx.doi.org/10.1017/s0094837300008599.

Full text

Abstract:

Cretaceous floras in Alaska, when compared to those at mid-latitudes, generally indicate later appearances in Alaska of major clades and major leaf morphologies. Compared to mid-latitude floras, Alaskan Late Cretaceous floras contain few major clades. The Alaskan clades diversified but at a low taxonomic level. Migrational pathways into high latitudes were probably along streams. Similar patterns characterized the Alaskan Tertiary, although some southward migrations of lineages occurred during the Neogene.Review of other Arctic paleontological data from Ellesmere Island, previously used to suggest that the Arctic was a major center of origin during the Late Cretaceous, indicates that the ages of supposedly substantiating dinoflagellate floras were misinterpreted. When the dinoflagellate data are interpreted according to standard methodology, first occurrences of genera and species groups on Ellesmere are, like the Alaskan occurrences, later than first occurrences at middle latitudes.

APA, Harvard, Vancouver, ISO, and other styles

30

Koerner, R. M., J. C. Bourgeois, and D. A. Fisher. "Pollen Analysis and Discussion of Time-Scales in Canadian Ice Cores." Annals of Glaciology 10 (1988): 85–91. http://dx.doi.org/10.3189/s0260305500004225.

Full text

Abstract:

Previous pollen analyses of ice cores from Devon and Ellesmere islands have contributed considerably to our knowledge of past climate in the Canadian High Arctic. In this case, in 1979, bulk (35–83 litres) water samples were melted down a hole 139 m deep, drilled to bedrock, 1.2 km from the top of the flow line in Agassiz Ice Cap in northern Ellesmere Island. Analysis of ten of these samples, plus some taken in very dirty ice from the melt tank during drilling 7 years ago, has yielded pollen concentrations that, together with the oygen-isotope (6) signatures, suggest the Agassiz Ice Cap began its growth during the last interglacial period. A discrepancy between melt-tank and bulk-sample pollen concentrations is believed to be due to a loss of pollen from the melt-tank samples during the drilling process.

APA, Harvard, Vancouver, ISO, and other styles

31

Hudson, W. Donald, and Lyle Dick. "Muskox Land: Ellesmere Island in the Age of Contact." Environmental History 8, no. 3 (July 2003): 488. http://dx.doi.org/10.2307/3986213.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Partridge, Stephen. "The Ellesmere Chaucer: Essays in Interpretation.Martin Stevens , Daniel Woodward." Speculum 72, no. 3 (July 1997): 885–90. http://dx.doi.org/10.2307/3040828.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Hanna,, Ralph, and A. S. G. Edwards. "Rotheley, the De Vere Circle, and the Ellesmere Chaucer." Huntington Library Quarterly 58, no. 1 (January 1995): 11–35. http://dx.doi.org/10.2307/3817895.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Lewkowicz, Antoni G. "Slope hummock development, Fosheim Peninsula, Ellesmere Island, Nunavut, Canada." Quaternary Research 75, no. 2 (March 2011): 334–46. http://dx.doi.org/10.1016/j.yqres.2010.12.013.

Full text

Abstract:

AbstractSlope hummocks, a type of nonsorted patterned ground, are composed of stratified, organic, silty sand, and develop through the interaction of niveo-eolian deposition, solifluction, slopewash, and vegetation growth. Fields of hummocks show consistent patterns: forms on convex slopes increase in height downslope until the channel is reached, whereas those on convexo-concave slopes increase on the upper convexity but are buried by niveo-eolian deposition downslope of the snowbank remnant. These trends can be reproduced using a simple numerical model based on measured slope and snow depth profiles, sediment concentrations in the snow and solifluction rates. The model indicates that hummocks transit slopes of 20–40 m in about 2–4 ka, a time-frame that is plausible given site emergence, measured rates of solifluction, and published dates for organic horizons within hummocks on northern Ellesmere Island. Sensitivity analyses show that long-term effect of climate warming on hummock heights may differ depending on whether it is accompanied by precipitation increase or decrease. The required combination of two-sided freezing to promote plug-like movement, incomplete vegetation cover and thin snow that enable eolian erosion during winter and spring, and vegetation growth in snow-bed sites to stabilize niveo-eolian deposits may explain why these forms are important regionally but apparently are not present throughout the Arctic.

APA, Harvard, Vancouver, ISO, and other styles

35

Steinbring, Eric. "Astronomy from 80 Degrees North on Ellesmere Island, Canada." Proceedings of the International Astronomical Union 8, S288 (August 2012): 194–99. http://dx.doi.org/10.1017/s1743921312016869.

Full text

Abstract:

AbstractSite testing carried out on Ellesmere Island over recent years has shown that mountainous coastal terrain there can provide high clear-sky fractions in the long dark season, with low precipitable water-vapour column and prospects for excellent seeing. This presents new possibilities for time-domain and survey-mode science in the northern hemisphere, allowing uninterrupted high-precision photometry in the optical/near-infrared, but also gains in the submillimetre/millimetre. Efforts underway at the Eureka research station, at 80 degrees latitude, are reviewed. This location provides year-round access to a nearby site being developed as a pathfinder observatory. A program of variable-star and transient searches involving a wide-field imaging system has begun, with some early results. Plans include extrasolar-planet hunting via transit surveys, and future directions are discussed.

APA, Harvard, Vancouver, ISO, and other styles

36

Scala, Elizabeth. "Seeing red: the Ellesmere iconography of Chaucer's Nun's Priest." Word & Image 26, no. 4 (November 2010): 381–92. http://dx.doi.org/10.1080/02666281003603260.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Schwarzhans, Werner. "Fish otoliths from the lower Tertiary of Ellesmere Island." Canadian Journal of Earth Sciences 23, no. 6 (June 1, 1986): 787–93. http://dx.doi.org/10.1139/e86-080.

Full text

Abstract:

Fish otoliths of five species are present in lower Tertiary (Paleocene to Lower Eocene) rocks at Strathcona Fiord, Ellesmere Island. Two species are new, one is conspecific with a species known from the Lower Eocene of southern England, and two remain in open nomenclature.Paleobiogeographic and other implications of the fauna are that first, there is no resemblance to central European faunas; second, there is a resemblance to northern European faunas from Great Britain and the Soviet Union, pointing to cooler climatic conditions; and third, composition of the fauna suggests the prevalence of deeper shelf conditions.

APA, Harvard, Vancouver, ISO, and other styles

38

Gerbeaux, P., and J. C. Ward. "Factors affecting water clarity in Lake Ellesmere, New Zealand." New Zealand Journal of Marine and Freshwater Research 25, no. 3 (September 1991): 289–96. http://dx.doi.org/10.1080/00288330.1991.9516481.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Vavrus, Stephen J., Feng He, John E. Kutzbach, and William F. Ruddiman. "Rapid neoglaciation on Ellesmere Island promoted by enhanced summer snowfall in a transient climate model simulation of the middle-late-Holocene." Holocene 30, no. 10 (June 12, 2020): 1474–80. http://dx.doi.org/10.1177/0959683620932967.

Full text

Abstract:

Arctic neoglaciation following the Holocene Thermal Maximum is an important feature of late-Holocene climate. We investigated this phenomenon using a transient 6000-year simulation with the CESM-CAM5 climate model driven by orbital forcing, greenhouse gas concentrations, and a land use reconstruction. During the first three millennia analyzed here (6–3 ka), mean Arctic snow depth increases, despite enhanced greenhouse forcing. Superimposed on this secular trend is a very abrupt increase in snow depth between 5 and 4.9 ka on Ellesmere Island and the Greenland coasts, in rough agreement with the timing of observed neoglaciation in the region. This transition is especially extreme on Ellesmere Island, where end-of-summer snow coverage jumps from nearly 0 to virtually 100% in 1 year, and snow depth increases to the model’s imposed maximum within 15 years. This climatic shift involves more than the Milankovitch-based expectation of cooler summers causing less snow melt. Coincident with the onset of the cold regime are two consecutive summers with heavy snowfall on Ellesmere Island that help to short-circuit the normal seasonal melt cycle. These heavy snow seasons are caused by synoptic-scale, cyclonic circulation anomalies over the Arctic Ocean and Canadian Archipelago, including an extremely positive phase of the Arctic Oscillation. Our study reveals that a climate model can produce sudden climatic transitions in this region prone to glacial inception and exceptional variability, due to a dynamic mechanism (more summer snowfall induced by an extreme circulation anomaly) that augments the traditional Milankovitch thermodynamic explanation of orbitally induced glacier development.

APA, Harvard, Vancouver, ISO, and other styles

40

Jackson, H. Ruth, and I. Reid. "Crustal thickness variations between the Greenland and Ellesmere Island margins determined from seismic refraction." Canadian Journal of Earth Sciences 31, no. 9 (September 1, 1994): 1407–18. http://dx.doi.org/10.1139/e94-124.

Full text

Abstract:

Two densely sampled marine refraction lines were shot in northern Baffin Bay on the shelves of Devon and Ellesmere islands (North American plate) and Greenland (Greenland plate). A total of 11 ocean-bottom seismometers recorded the airgun signals. The processed data were analyzed by the use of ray tracing and amplitude modelling. Two-dimensional models were derived that reproduce the characteristics of the observed data. A 5 km deep sedimentary basin was identified on the south end of line 3. On both lines the crustal velocity has a range of 5.7–6.6 km/s. Midway along the line on the shelf of Devon and Ellesmere islands, the Moho shallows abruptly northward from 27 to 20 km. The thinned crust is not overlain by a sedimentary basin to compensate for the elevated Moho, suggesting this is not an extensional feature. The thickness of the crust adjacent to northwest Greenland increases from south (22 km) to north (37 km). The thickening occurs in two stages: a sharp increase in the depth to Moho northwest of the sedimentary basin followed by a gradual deepening to the end of the line. The thin crust on the shelf of Ellesmere Island is located adjacent to the thick crust of Greenland. Plate reconstructions based on regional magnetic anomalies and transform faults indicate that Greenland is a separate plate. The crustal structure revealed by seismic refraction and reflection profiles and the variations in the depth to Moho are consistent with the plate boundary occurring between the refraction lines.

APA, Harvard, Vancouver, ISO, and other styles

41

Retelle, Michael J. "Glacial geology and Quaternary marine stratigraphy of the Robeson Channel area, northeastern Ellesmere Island, Northwest Territories." Canadian Journal of Earth Sciences 23, no. 7 (July 1, 1986): 1001–12. http://dx.doi.org/10.1139/e86-101.

Full text

Abstract:

Glacial and marine deposits associated with two phases of glaciation are exposed along a 60 km corridor on Ellesmere Island that borders Robeson Channel. The oldest sediments, tentatively dated at ≥ 70 000 BP, were deposited during a major advance of the northwest Greenland ice sheet across Robeson Channel. During subsequent retreat of this ice mass, glaciomarine sediments containing a High Arctic macro- and microfauna were deposited in the isostatic downwarp on Ellesmere Island. This marine unit was radiocarbon dated at 31 300 ± 900 and > 32 000 BP; mean aIle/Ile ratios are 0.218 ± 0.03 for the free fraction and 0.063 ± 0.011 for the total acid hydrolysate.The last ice advance (late Wisconsin – early Holocene) did not extend into the field area from either interior Ellesmere Island or northwest Greenland. The ice-marginal sea transgressed to the marine limit (~116 m) and overlapped the deposits of the previous maximum Greenland advance. Local plateau ice caps did, however, spill over into one major valley and delayed the establishment of the marine limit in this location. Radiocarbon dates on the Holocene marine limit shorelines indicate initial emergence between 8000 and 8600 BP. A mean aIle/Ile ratio of 0.037 was found for the total acid hydrolysate; aIle was undetectable in the free fraction of the Holocene shells.The Holocene and pre-Holocene glacial and marine chronologies in the Robeson Channel area are similar to chronologies demonstrated from other locations in Arctic regions. Tentative correlations based upon aminostratigraphy suggest that the field area has remained, for the most part, ice free since at least 70 000 BP.

APA, Harvard, Vancouver, ISO, and other styles

42

Osczevski, Randall J. "The hunt for marine reptile fossils on western Ellesmere Island." Polar Record 28, no. 165 (April 1992): 105–12. http://dx.doi.org/10.1017/s0032247400013395.

Full text

Abstract:

AbstractAn expedition of the Canada/China Dinosaur Project collected several large marine-reptile fossils on western Ellesmere Island in the summer of 1989. They were led to the area by a 1939 report that a large fossil skeleton had been seen north of Trold Fiord by a member of a Royal Canadian Mounted Police patrol in 1926. This paper examines the events of the original discovery and an unsuccessful attempt by David Haig-Thomas to locate the fossils in 1937–38. Haig-Thomas had visited the area in 1935 as a member of the Oxford University Ellesmere Land Expedition. His party had reached a fiord variously identified as Trold Fiord or Vendomc Fiord, but a study of his probable route suggests that it was neither. This inaccurate identification misled Haig-Thomas' later search. In 1989, pieces of fossil bone from a large marine reptile were collected at a site compatible with the 1939 description.

APA, Harvard, Vancouver, ISO, and other styles

43

Douglas, Marianne S. V., and John P. Smol. "Limnology of high arctic ponds (Cape Herschel, Ellesmere Island, N. W. T.)." Archiv für Hydrobiologie 131, no. 4 (November 11, 1994): 401–34. http://dx.doi.org/10.1127/archiv-hydrobiol/131/1994/401.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Hill, Stewart A., Stephen E. Scheckler, and James F. Basinger. "Ellesmeris sphenopteroides, gen. ET SP. NOV., a new zygopterid fern from the Upper Devonian (Frasnian) of Ellesmere, N.W.T., Arctic Canada." American Journal of Botany 84, no. 1 (January 1997): 85–103. http://dx.doi.org/10.2307/2445886.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Mech, L. David. "A Gray Wolf (Canis lupus) delivers live prey to a pup." Canadian Field-Naturalist 128, no. 2 (July 6, 2014): 189. http://dx.doi.org/10.22621/cfn.v128i2.1584.

Full text

Abstract:

A two-year-old sibling Gray Wolf (Canis lupus) carefully captured an Arctic Hare (Lepus arcticus) leveret alive on Ellesmere Island, Nunavut, Canada, and delivered it alive to a pup 28–33 days old. This appears to be the first observation of a Gray Wolf delivering live prey to a pup.

APA, Harvard, Vancouver, ISO, and other styles

46

Blake, Colin. "Obituary: David Chilton Phillips (Lord Phillips of Ellesmere), 1924–1999." Structure 7, no. 5 (May 1999): R123—R124. http://dx.doi.org/10.1016/s0969-2126(99)80075-6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

England, John. "A Paleoglaciation Level for North-Central Ellesmere Island, N.W.T., Canada." Arctic and Alpine Research 18, no. 2 (May 1986): 217. http://dx.doi.org/10.2307/1551132.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Coates, Kenneth. "Muskox Land: Ellesmere Island in the Age of Contact (review)." Canadian Historical Review 85, no. 4 (2004): 791–93. http://dx.doi.org/10.1353/can.2005.0011.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Baud, Aymon, Hans Arne Nakrem, Benoit Beauchamp, Tyler W. Beatty, Ashton F. Embry, and Charles M. Henderson. "Lower Triassic bryozoan beds from Ellesmere Island, High Arctic, Canada." Polar Research 27, no. 3 (January 2008): 428–40. http://dx.doi.org/10.1111/j.1751-8369.2008.00071.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Trettin, H. P., and R. Parrish. "Late Cretaceous bimodal magmatism,northern Ellesmere Island:isotopic age and origin." Canadian Journal of Earth Sciences 24, no. 2 (February 1, 1987): 257–65. http://dx.doi.org/10.1139/e87-027.

Full text

Abstract:

In the Yelverton Bay region of northwestern Ellesmere Island, bimodal intrusive and volcanic rocks are associated with a major fault in the Proterozoic–Cambrian rocks of the Pearya Terrane. The Wootton intrusion consists mainly of gabbro with lesser amounts of granitic and hybrid rocks; the Hansen Point volcanics are composed of felsic rocks and basalt. Plutonic zircons are very slightly discordant, but volcanic zircons have unusually high degrees of inheritance. Interpreted U/Pb zircon ages of 92.0 ± 1.0 Ma for the Wootton intrusion (assuming a wide range of inheritance ages) and of [Formula: see text] for the Hansen Point volcanics are close to the 93 Ma average of hornblende K/Ar dates obtained earlier for a small quartz diorite pluton in central northernmost Ellesmere Island. All fall into the early Late Cretaceous and indicate correlation with mafic volcanics of the Cenomanian–Turonian Strand Fiord Formation of eastern Axel Heiberg Island. The upper intercept age for the Hansen Point volcanics ([Formula: see text]) suggests that the felsic component in the bimodal suites was in part derived from the upper Middle Proterozoic (Neohelikian) basement gneiss. Limited field observations on the Wootton intrusion also are compatible with the hypothesis that the granitic component represents sialic basement, melted by mafic intrusion at depth during an extensional tectonic regime.

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Ellesmere'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles