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  • similar to that of present-day. Pollen floras from the overlying fluvial strata, of early or middle Pleistocene age, record predominantly herbaceous taxa indicating tundra conditions probably more severe than those of the present day. These deposits were
  • A 14-m-thick section of marine and fluviatile sediments, exposed in bluff near Ocean Point on the Colville River, has been studied by means of pollen analysis. Pollen from the marine sediments, of probable late Pliocene age, suggests an environment
  • By the age model of the AA., the upper reaches of Hatherton Glacier have not exceeded their current elevations by more than 100-150 m during the last two complete global glacial-interglacial cycles, whereas the middle and lower reaches of Hatherton
  • to sheltered and moist sites. Camelops evidently was present in eastern Beringia during the middle Wisconsin interstadial interval but may have disappeared during the following glacial episode. The stratigraphic section at Canyon Creek appears to demonstrate
  • that the Delta Glaciation of the north-central Alaska Range is at least in part of early Wisconsin age and was separated from the succeeding Donnelly Glaciation by an interstadial rather than interglacial episode.
  • Glacier behaviour and the influence of upper-air conditions during the Little Ice Age in Disko, central West Greenland
  • Circulation atmosphérique ; Glacier ; Glaciologie ; Groenland ; Géographie des régions polaires ; Petit Age Glaciaire ; Retrait glaciaire ; Vent
  • L'inventaire de 205 glaciers et névés au SW de Disko montre des différences importantes dans la récession glaciaire depuis la fin du Petit Age Glaciaire.
  • Soil formation as an indication of relative age of glacial deposits in Eastern Greenland
  • A chrono-sequence of soils has been studied in a proglacial valley extending from the Midtlu gkat Glacier on the island Angmagssalik O in Eastern Greenland. The relative age of soils and a probable sequence of especially translocation processes
  • New evidence for the age of the Gubik formation, Alaskan North Slope
  • At several Alaskan North Slope localities south of the shore of the Arctic Ocean the Gubik Formation, herein regarded as latest Pliocene and Pleistocene in age, contains a marine unit at its base. Near Ocean Point and near Teshekpuk Lake this basal
  • is of latest Pliocene age, between 2.2 and 1.7 my old, and that the marine unit near Teshekpuk Lake is probably late Pleistocene, most likely correlating with the Sangamon Interglaciation and about 120,000 yr old.
  • Late Wisconsinan age glacial Landforms and deposits indicate that an ice shelf of at least 60,000 km flowed northwestward into Viscount Melville Sound, probably from the M'Clintock Dome of the Laurentide Ice Sheet. The ice shelf overlapped coastal
  • areas and laid Winter Harbour Till up to 150 m above present sea level on the north coast of Victoria Island. The contemporary sea-level was 50 to 100 m higher than present. A maximum age of 10,340150 yr BP for the till, and thus for the ice shelf
  • advance, is provided by shells in marine sediments which underlie it, whereas a minimum age of 9880150 yr BP is provided by overlying shells that postdate the ice advance.
  • Two new series of radiocarbon age determinations form the basis for this paper. The first series shows that both the outer east coast of Ellesmere Island (north to latitude 7836) and much of Makinson Inlet were free of glacier ice prior to 9000
  • radiocarbon years ago (dates uncorrected for the apparent age of sea water). The second series of age determinations relates to fluctuations of outlet glaciers during Holocene time. Dates of 5180260 years (GSC-2909) and 2590150 years (GSC-3191) for the bottom
  • AMS-14C ages measured in deep sea cores from the Southern Ocean : implications for sedimentation rates during isotope stage 2
  • deposits (diamictons) are interpreted as maximum ages. The consistency of corrected ages from the shelf, along with the sedimentologic interpretation, suggests a rather recent recession, perhaps mid-Holocene for this portion of the East Antarctic ice sheet
  • Remnants of Viking age tundra in Spitsbergen and Northern Scandinavia
  • (approximately 120,000 yr) age determinations on shell fragments (Hiatella solida) found in basal till suggest a Wisconsin age for the glaciation that incorporated them. The pattern of ice flow differed from that deduced for this area in the CLIMAP reconstruction.
  • This paper presents geochemical data that suggest a correlation between this newly discovered tephra and the Old Crow tephra, and provides the first chronologic constraints on the age of Pleistocene sediments at the Palisades of the Yukon.
  • the last glacial maximum, rather than full-glacial paleowind vectors or the age of the bulk of the underlying deposits.
  • radiocarbon ages of the deposits are between 10,015 and 580 yr B.P. Modern surface pollen data from these and 25 additionnal sites, ranging from lowlands to an altitude of 675 m in the alpine tundra, were used to aid in the interpretation of the fossil records.
  • that the Beardmore drift limit is late Wisconsin (isotope stage 2) and the Meyer limit Stage 6 in age. The Beardmore and Meyer drift sheets represent thickening of the Beardmore Glacier in response to Ross Ice Shelf grounding during the last two global glaciations
  • Age de Pierre ; Analyse ; Arctique ; Expédition archéologique ; Géographie des régions polaires ; Géographie historique ; Hypothèse ; Matériel archéologique ; Norvège ; Svalbard
  • the area in 1978, but failed to find evidence of prehistoric human habitation. Geologic studies and radiocarbon dating indicate that the strata reported at the site are intertidal in origin, very late Holocene in age, and have undergone significant tectonic
  • Old Crow tephra is the first extensive Pleistocene tephra unit to be documented in the northwestern part of North America. It has an age between the limits of 60,000 and 12,000 yr, set by C and fission-track measurements, respectively. Old Crow
  • with the Scandinavian ice sheet of that time through the Barents Shelf ice sheet. The following glacier advances in the described area occurred about 11-10 thousand years BP and in Late Holocene: at 2.5-2 thousand years BP and during Ice Age. (AA).