Bernard Lauriol

Datos Biográficos

ID206348
NOMBREBernard Lauriol
NOMBRESBernard
APELLIDOLauriol
FIRMALAURIOL B
AFILIACIONESUniversity of Ottawa
VERIFICADONo
TOTAL DE OBRAS14
TOTAL DE CITAS1
TOTAL COMO AUTOR14
TOTAL COMO EDITOR0
PRIMER AÑO DE PUBLICACIÓN1986
AÑO MÁS RECIENTE DE PUBLICACIÓN2022
ÍNDICE H1

  • In Memoriam

    Ruth M Gotthardt, Ruth Gotthardt et al.ARTICLEArchéologiques2022

  • Chronologie et enregistrements climatiques dans les dépôts travertineux du Maroc

    Open AccessLouis Rousseau, Christophe Falguères et al.ARTICLEL Anthropologie2017

  • Using noble gas ratios to determine the origin of ground ice

    Open AccessNicholas Utting, Bernard Lauriol et al.ARTICLEQuaternary Research2016

    Argon, krypton and xenon have different solubilities in water, meaning their ratios in water are different from those in atmospheric air. This characteristic is used in a novel method to distinguish between ice bodies which originate from the compaction of snow (i.e. buried snow banks, glacial ice) vs. ice which forms from the freezing of groundwater (i.e. pingo ice). Ice which forms from the compaction of snow has gas ratios similar to atmospher…

  • Timing of advance and basal condition of the Laurentide Ice Sheet during the last glacial maximum in the Richardson Mountains, NWT

    Open AccessDenyse Lacelle, Bernard Lauriol et al.ARTICLEQuaternary Research2013

    This study presents new ages for the northwest section of the Laurentide Ice Sheet (LIS) glacial chronology from material recovered from two retrogressive thaw slumps exposed in the Richardson Mountains, Northwest Territories, Canada. One study site, located at the maximum glacial limit of the LIS in the Richardson Mountains, had calcite concretions recovered from aufeis buried by glacial till that were dated by U/Th disequilibrium to 18,500 cal …

  • Holocene Evolution of Lakes in the Bluefish Basin, Northern Yukon, Canada

    Open AccessBernard Lauriol, Denyse Lacelle et al.ARTICLEARCTIC2009

    This study documents the Holocene evolution of lakes located in the Bluefish Basin, northern Yukon, on the basis of lake lithology, distribution of plant macrofossils, and radiocarbon dating of the basal organic material in sediment cores obtained from former lake basins. Basal organic matter from former lake basins is radiocarbon-dated to the late Holocene (< 3770 yr. BP), whereas the 14C ages from the polygonal peat plateaus (~2 m thick) that s…

  • Contemporary (1951–2001) Evolution of Lakes in the Old Crow Basin, Northern Yukon, Canada

    Open AccessSylvain Labrecque, Denyse Lacelle et al.ARTICLEARCTIC2009

    This study reports on changes in the distribution, surface area, and modern water balance of lakes and ponds located in the Old Crow Basin, northern Yukon, over a 50-year period (1951–2001), using aerial photographs, satellite imagery, a numerical lake model, and stable O-H isotope analysis. Results from the analysis of historical air photos (1951 and 1972) and a Landsat-7 Enhanced Thematic Mapper (ETM+) image (2001) show an overall decrease (-3.…

  • Nature and origin of a Pleistocene-age massive ground-ice body exposed in the Chapman Lake moraine Complex, central Yukon Territory, Canada

    Open AccessDenyse Lacelle, Bernard Lauriol et al.ARTICLEQuaternary Research2007

    A massive ground-ice body was found exposed in the headwall of a thaw flow developed within the Chapman Lake terminal moraine complex on the Blackstone Plateau (Ogilvie Mountains, central Yukon Territory), which is contemporaneous to the Reid glaciation. Based on visible cryostructures in the 4-m-high headwall, two units were identified: massive ground ice, overlain sharply by 2 m of icy diamicton. The nature and origin of the Chapman Lake massiv…

  • Molar gas ratios of air entrapped in ice

    Open AccessRaphaelle Cardyn, Ian D Clark et al.ARTICLEQuaternary Research2007

    The molar ratios of atmospheric gases change during dissolution in water due to differences in their relative solubilities. We exploited this characteristic to develop a tool to clarify the origin of ice formations in permafrost regions. Extracted from ice, molar gas ratios can distinguish buried glacier ice from intrasedimental ground ice formed by freezing groundwaters. An extraction line was built to isolate gases from ice by melting and trapp…

  • Cliff-top eolian deposits and associated molluscan assemblages as indicators of Late Pleistocene and Holocene environments in Beringia

    Open AccessBernard Lauriol, Yannick Cabana et al.ARTICLEQuaternary International2002

  • Response of the Porcupine and Old Crow rivers in northern Yukon, Canada, to Holocene climatic change

    Open AccessBernard Lauriol, Claude Duguay et al.ARTICLEThe Holocene2002Referencias: 8

    A major aggradation took place from 8000 BP to 4000 BP in the Porcupine and Old Crow rivers, northern Yukon. The aggradation was a consequence of an increase in flow and the result of a perturbation of the permafrost active layer following the early-Holocene climatic warming of northwestern Canada. These findings are useful for improving our understanding of how natural landscapes and river systems evolved in regions that experienced a permafrost…

  • Faunal and Archaeological Remains as Evidence of Climate Change in Freezing Caverns, Yukon Territory, Canada

    Open AccessBernard Lauriol, Clément Prévost et al.ARTICLEARCTIC2001

    Animal and plant remains, some associated with prehistoric artifacts, were collected in freezing caverns (glacières) of northern Yukon Territory. Radiocarbon dates show that the oldest remains are Middle Wisconsinan ca. 38 000 BP). The absence of material of Late Wisconsinan age likely indicates that the caves were infilled by ice during this cold period. Climate warming and ice melting during the Holocene allowed animals and prehistoric hunters …

  • Cryoplanation Terraces, Northern Yukon

    Open AccessBernard LauriolARTICLECanadian Geographies /…1990Citada por: 1Referencias: 4

  • Topoclimatic Zones and Ice Dynamics in the Caves of the Northern Yukon, Canada

    Open AccessBernard Lauriol, L Carrier et al.ARTICLEARCTIC1988

    In the upper basin of the Porcupine River, the subhorizontal caves of Bear Cave and Tsi-it-toh-Choh mountains are characterized by a very rich ice zone. The authors propose a model for the build-up of ice based on the formation of hexagonal ice sublimation crystals on the cold walls of underground passages. In this model, water freezes and thaws many times, causing a series of different forms from the ceiling to the floor of the caves. This proce…

  • The Residual Snow Cover in the Canadian Arctic in July

    Open AccessBernard Lauriol, Yvan Carrier et al.ARTICLEARCTIC1986

    This paper examines the residual snow cover in the Canadian Arctic during the month of July in the period 1948-83 inclusive using air photographs. The study area includes the Ungava Peninsula, part of the District of Keewatin and the Arctic Archipelago, except for the mountainous regions to the west of the Labrador Sea, and Baffin Bay, where numerous snow fields and glaciers are present. In spite of the spatial discontinuity of the air photograph…