Reconstructing the advance and retreat dynamics of the central sector of the last Cordilleran Ice Sheet
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F22%3A10448840" target="_blank" >RIV/00216208:11310/22:10448840 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=IoyB~-~2JX" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=IoyB~-~2JX</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.quascirev.2022.107465" target="_blank" >10.1016/j.quascirev.2022.107465</a>
Alternative languages
Result language
angličtina
Original language name
Reconstructing the advance and retreat dynamics of the central sector of the last Cordilleran Ice Sheet
Original language description
The advance of the Cordilleran Ice Sheet (CIS) towards its Last Glacial Maximum (LGM) configuration and its subsequent retreat remain poorly understood. We use the glacial landform record to determine ice dynamics for the central sector of the CIS in northern British Columbia, Canada, beneath the LGM ice divide. We classify seventy ice-flow indicator flowsets based on morphology, elevation, orientation and cross-cutting relationships into one of three stages, whereby stage 1 is oldest and stage 3 youngest. Combined with ice-contact geomorphology, our reconstruction highlights complex changes in ice flow over time as a result of ice divide migrations through the LGM and deglacial phases. The orientation and distribution of landforms indicates active post-LGM ice retreat westward through the Cassiar and Omineca mountains. We map the regional distribution of independent mountain glaciers, ice caps, and ice fields that regrew during a cooling event in the Late Glacial and show that some of these readvance glaciers were subsequently overrun by advancing outlet glaciers of the CIS. We use the cross-cutting relationship between readvance glaciers and CIS outlet glaciers and available chronological data to reconstruct the eastern CIS margin during the Late Glacial for the first time.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10508 - Physical geography
Result continuities
Project
<a href="/en/project/GJ19-21216Y" target="_blank" >GJ19-21216Y: New deglaciation chronology of the North American Ice Sheet Complex</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Quarternary Science Reviews
ISSN
0277-3791
e-ISSN
1873-457X
Volume of the periodical
284
Issue of the periodical within the volume
May
Country of publishing house
GB - UNITED KINGDOM
Number of pages
20
Pages from-to
107465
UT code for WoS article
000805168800002
EID of the result in the Scopus database
2-s2.0-85129322418