Palaeoenvironmental Interpretation of Late Quaternary Marine Molluscan Assemblages, Canadian Arctic Archipelago
This study examines neonto- logical and palaeontological data pertaining to arctic marine molluscs with the goal of reconstructing the palaeoecology of Late Quaternary ca. 12-1 ka BP glaciomarine environments in the Canadian Arctic Archipelago. A total of 26 taxa that represent 15 bivalves and 11 ga...
Published in: | Géographie physique et Quaternaire |
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Les Presses de l'Université de Montréal
2000
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Online Access: | https://doi.org/10.7202/005650ar http://id.erudit.org/iderudit/005650ar |
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fttriple:oai:gotriple.eu:10.7202/005650ar 2023-05-15T14:28:46+02:00 Palaeoenvironmental Interpretation of Late Quaternary Marine Molluscan Assemblages, Canadian Arctic Archipelago Gordillo, Sandra Aitken, Alec E. 2000-01-01 https://doi.org/10.7202/005650ar http://id.erudit.org/iderudit/005650ar en eng Les Presses de l'Université de Montréal Érudit doi:10.7202/005650ar http://id.erudit.org/iderudit/005650ar Géographie physique et Quaternaire geo envir Text https://vocabularies.coar-repositories.org/resource_types/c_18cf/ 2000 fttriple https://doi.org/10.7202/005650ar 2023-01-22T16:35:20Z This study examines neonto- logical and palaeontological data pertaining to arctic marine molluscs with the goal of reconstructing the palaeoecology of Late Quaternary ca. 12-1 ka BP glaciomarine environments in the Canadian Arctic Archipelago. A total of 26 taxa that represent 15 bivalves and 11 gastropods were recorded in shell collections recovered from Prince of Wales, Somerset, Devon, Axel Heiberg and Ellesmere islands. In spite of taphonomic bias, the observed fossil faunas bear strong similarities to modern benthic molluscan faunas inhabiting high latitude continental shelf environments, reflecting the high preservation potential of molluscan taxa in Quaternary marine sediments. The dominance of an arctic-boreal fauna represented by Hiatella arctica, Mya truncata and Astarte borealis is the product of natural ecological conditions in high arctic glaciomarine environments. Environmental factors controlling the distribution and species composition of the Late Quaternary molluscan assemblages from this region are discussed. On étudie ici les données néontologiques et paléontologiques qui se rapportent aux mollusques marins de l'Arctique dans le but de reconstituer la paléocologie des milieux glaciomarins du Quaternaire supérieur entre 12 et 1 ka BP. Un total de 26 taxons composé de 15 bivalves et de 11 gastéropodes a été consigné dans les collections de coquillages assemblées dans les îles du Prince-de-Galles, Somerset, Devon, Axel Heiberg et Ellesmere. Malgré l'influence des processus taphonomiques, les faunes fossiles observées ressemblent beaucoup aux faunes de mollusques benthiques modernes habitant le plateau continental des hautes latitudes, ce qui reflète la grande capacité de préservation des taxons de mollusques dans les sédiments du Quaternaire. La dominance de la faune boréale-arctique représentée par Astarte borealis, Hiatella arctica et Mya truncata est le résultat des conditions écologiques naturelles qui prévalent dans les mileux glaciomarins du Haut Arctique. On étudie enfin les facteurs ... Text Arctic Archipelago Arctic Arctique* Canadian Arctic Archipelago Unknown Arctic Canadian Arctic Archipelago Heiberg ENVELOPE(13.964,13.964,66.424,66.424) Le Plateau ENVELOPE(70.250,70.250,-49.350,-49.350) Géographie physique et Quaternaire 54 3 301 315 |
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language |
English |
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geo envir Gordillo, Sandra Aitken, Alec E. Palaeoenvironmental Interpretation of Late Quaternary Marine Molluscan Assemblages, Canadian Arctic Archipelago |
topic_facet |
geo envir |
description |
This study examines neonto- logical and palaeontological data pertaining to arctic marine molluscs with the goal of reconstructing the palaeoecology of Late Quaternary ca. 12-1 ka BP glaciomarine environments in the Canadian Arctic Archipelago. A total of 26 taxa that represent 15 bivalves and 11 gastropods were recorded in shell collections recovered from Prince of Wales, Somerset, Devon, Axel Heiberg and Ellesmere islands. In spite of taphonomic bias, the observed fossil faunas bear strong similarities to modern benthic molluscan faunas inhabiting high latitude continental shelf environments, reflecting the high preservation potential of molluscan taxa in Quaternary marine sediments. The dominance of an arctic-boreal fauna represented by Hiatella arctica, Mya truncata and Astarte borealis is the product of natural ecological conditions in high arctic glaciomarine environments. Environmental factors controlling the distribution and species composition of the Late Quaternary molluscan assemblages from this region are discussed. On étudie ici les données néontologiques et paléontologiques qui se rapportent aux mollusques marins de l'Arctique dans le but de reconstituer la paléocologie des milieux glaciomarins du Quaternaire supérieur entre 12 et 1 ka BP. Un total de 26 taxons composé de 15 bivalves et de 11 gastéropodes a été consigné dans les collections de coquillages assemblées dans les îles du Prince-de-Galles, Somerset, Devon, Axel Heiberg et Ellesmere. Malgré l'influence des processus taphonomiques, les faunes fossiles observées ressemblent beaucoup aux faunes de mollusques benthiques modernes habitant le plateau continental des hautes latitudes, ce qui reflète la grande capacité de préservation des taxons de mollusques dans les sédiments du Quaternaire. La dominance de la faune boréale-arctique représentée par Astarte borealis, Hiatella arctica et Mya truncata est le résultat des conditions écologiques naturelles qui prévalent dans les mileux glaciomarins du Haut Arctique. On étudie enfin les facteurs ... |
format |
Text |
author |
Gordillo, Sandra Aitken, Alec E. |
author_facet |
Gordillo, Sandra Aitken, Alec E. |
author_sort |
Gordillo, Sandra |
title |
Palaeoenvironmental Interpretation of Late Quaternary Marine Molluscan Assemblages, Canadian Arctic Archipelago |
title_short |
Palaeoenvironmental Interpretation of Late Quaternary Marine Molluscan Assemblages, Canadian Arctic Archipelago |
title_full |
Palaeoenvironmental Interpretation of Late Quaternary Marine Molluscan Assemblages, Canadian Arctic Archipelago |
title_fullStr |
Palaeoenvironmental Interpretation of Late Quaternary Marine Molluscan Assemblages, Canadian Arctic Archipelago |
title_full_unstemmed |
Palaeoenvironmental Interpretation of Late Quaternary Marine Molluscan Assemblages, Canadian Arctic Archipelago |
title_sort |
palaeoenvironmental interpretation of late quaternary marine molluscan assemblages, canadian arctic archipelago |
publisher |
Les Presses de l'Université de Montréal |
publishDate |
2000 |
url |
https://doi.org/10.7202/005650ar http://id.erudit.org/iderudit/005650ar |
long_lat |
ENVELOPE(13.964,13.964,66.424,66.424) ENVELOPE(70.250,70.250,-49.350,-49.350) |
geographic |
Arctic Canadian Arctic Archipelago Heiberg Le Plateau |
geographic_facet |
Arctic Canadian Arctic Archipelago Heiberg Le Plateau |
genre |
Arctic Archipelago Arctic Arctique* Canadian Arctic Archipelago |
genre_facet |
Arctic Archipelago Arctic Arctique* Canadian Arctic Archipelago |
op_source |
Géographie physique et Quaternaire |
op_relation |
doi:10.7202/005650ar http://id.erudit.org/iderudit/005650ar |
op_doi |
https://doi.org/10.7202/005650ar |
container_title |
Géographie physique et Quaternaire |
container_volume |
54 |
container_issue |
3 |
container_start_page |
301 |
op_container_end_page |
315 |
_version_ |
1766302927374254080 |