EdenteV2, Main, Exploration, bibRecord, 00A753

Late-glacial paleoenvironment of Lake Algonquin sediments near Clarksburg, Ontario

Identifieur interne : 00A753 ( Main/Exploration ); précédent : 00A752; suivant : 00A754

Late-glacial paleoenvironment of Lake Algonquin sediments near Clarksburg, Ontario

Auteurs : P. F. Karrow [Canada] ; T. W. Anderson [Canada] ; L. D. Delorme [Canada] ; B. B. Miller [États-Unis] ; L. J. Chapman [Canada]

Source :

Journal of Paleolimnology [ 0921-2728 ] ; 1995-11-01.

RBID : ISTEX:BF52DEAC21914781D03A85A08793152A390606FD

Descripteurs français

Wicri :
- topic : Eau douce, Mollusque.

English descriptors

Abstract

Abstract: Excavation below the Lake Algonquin gravel beach bar near Clarksburg, Ontario, exposed mollusc-bearing clay over a lens of plant debris. This is the northernmost and most deeply buried Lake Algonquin fossil site found thus far in Ontario. It is the first site to provide dates from directly below the Algonquin beach bar. Two radiocarbon dates of about 11 200 years confirm the age of isostatically transgressing Lake Algonquin. Plant macrofossils (21 taxa), pollen (39 taxa), molluscs (12 taxa), and ostracodes (18 taxa) indicate that the climate was colder than present by several degrees and the forest-tundra ecotone was nearby initially but retreated northward rather quickly. Upward increases in abundances and diversity of molluscs and ostracodes suggest it was a time of rapid migration and colonization of species.

Url:

https://api.istex.fr/document/BF52DEAC21914781D03A85A08793152A390606FD/fulltext/pdf

DOI: 10.1007/BF00682430

Affiliations:

Canada, États-Unis
Ohio, Ontario

Links toward previous steps (curation, corpus...)

to stream Istex, to step Corpus: 005F23
to stream Istex, to step Curation: 005F23
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to stream Main, to step Curation: 00A753

Le document en format XML

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<author><name sortKey="Karrow, P F" sort="Karrow, P F" uniqKey="Karrow P" first="P. F." last="Karrow">P. F. Karrow</name>
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<author><name sortKey="Anderson, T W" sort="Anderson, T W" uniqKey="Anderson T" first="T. W." last="Anderson">T. W. Anderson</name>
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<author><name sortKey="Delorme, L D" sort="Delorme, L D" uniqKey="Delorme L" first="L. D." last="Delorme">L. D. Delorme</name>
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<author><name sortKey="Miller, B B" sort="Miller, B B" uniqKey="Miller B" first="B. B." last="Miller">B. B. Miller</name>
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<author><name sortKey="Chapman, L J" sort="Chapman, L J" uniqKey="Chapman L" first="L. J." last="Chapman">L. J. Chapman</name>
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<wicri:regionArea>Box 311, N0H 1J0, Clarksburg, Ontario</wicri:regionArea>
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<series><title level="j">Journal of Paleolimnology</title>
<title level="j" type="abbrev">J Paleolimnol</title>
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<idno type="eISSN">1573-0417</idno>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Algonquin</term>
<term>Algonquin beach</term>
<term>Alliston embayment</term>
<term>Aquatic</term>
<term>Aquatic habitats</term>
<term>Aquatic molluscs</term>
<term>Area today</term>
<term>Assemblage</term>
<term>Beaver river</term>
<term>Canada centre</term>
<term>Candona rawsoni</term>
<term>Centre</term>
<term>Clarksburg</term>
<term>Clayey silt</term>
<term>Cold water</term>
<term>Collingwood township</term>
<term>Conventus</term>
<term>Cyperaceae</term>
<term>Delorme</term>
<term>Dryas</term>
<term>Dryas integrifolia</term>
<term>Edward lake</term>
<term>Empetrum nigrum</term>
<term>Environment canada</term>
<term>Fossil</term>
<term>Fossil assemblage</term>
<term>Fossil assemblages</term>
<term>Fossil site</term>
<term>Freshwater</term>
<term>Freshwater ostracoda</term>
<term>Freshwater ostracodes</term>
<term>Geol</term>
<term>Geological survey</term>
<term>Glacial</term>
<term>Glacial lake algonquin</term>
<term>Gramineae</term>
<term>Great lakes</term>
<term>Great lakes region</term>
<term>Grey county</term>
<term>High percentages</term>
<term>Huron</term>
<term>Huron basin</term>
<term>Integrifolia</term>
<term>Karrow</term>
<term>Laboratory work</term>
<term>Lagoonal</term>
<term>Lake algonquin</term>
<term>Lake algonquin clay</term>
<term>Lake algonquin deposits</term>
<term>Lake algonquin sediments</term>
<term>Lake erie</term>
<term>Lake huron</term>
<term>Lapidaria</term>
<term>Limnocythere</term>
<term>Limnocythere pseudoreticulata</term>
<term>Lower algonquin beaches</term>
<term>Lower surfaces</term>
<term>Macrofossils</term>
<term>Mollusc</term>
<term>National museum</term>
<term>Natural sciences</term>
<term>Niagara escarpment</term>
<term>Northwestern ontario</term>
<term>Ontario</term>
<term>Organic layer</term>
<term>Ostracoda</term>
<term>Ostracode</term>
<term>Ostracode species</term>
<term>Ostracodes</term>
<term>Other composites</term>
<term>Other herbs</term>
<term>Overlying clay unit</term>
<term>Oxyria digyna</term>
<term>Personal communication</term>
<term>Picea</term>
<term>Pisidium conventus</term>
<term>Plant debris</term>
<term>Plant layer</term>
<term>Plant macrofossils</term>
<term>Pollen record</term>
<term>Pomatiopsis lapidaria</term>
<term>Porsild cody</term>
<term>Port huron</term>
<term>Process research division</term>
<term>Quaternary</term>
<term>Quaternary evolution</term>
<term>Quaternary geology</term>
<term>Quaternary sciences institute</term>
<term>Radiocarbon</term>
<term>Radiocarbon dates</term>
<term>Salix</term>
<term>Salix herbacea</term>
<term>Saxifraga oppositifolia</term>
<term>Sediment</term>
<term>Selaginella selaginoides</term>
<term>Several centuries</term>
<term>Several degrees</term>
<term>Shallow water sediments</term>
<term>Shoreline survey data</term>
<term>Silt</term>
<term>Southern georgian</term>
<term>Southern ontario</term>
<term>Southwestern ontario</term>
<term>Stratigraphic</term>
<term>Stratigraphic section</term>
<term>Stratigraphic variation</term>
<term>Taxon</term>
<term>Tree line</term>
<term>Turfy barrens</term>
<term>Vaccinium</term>
<term>Vaccinium uliginosum</term>
<term>Vallonia pulchella</term>
<term>Valvata tricarinata</term>
<term>Vegetation history</term>
<term>Water levels</term>
<term>York state</term>
</keywords>
<keywords scheme="Teeft" xml:lang="en"><term>Algonquin</term>
<term>Algonquin beach</term>
<term>Alliston embayment</term>
<term>Aquatic</term>
<term>Aquatic habitats</term>
<term>Aquatic molluscs</term>
<term>Area today</term>
<term>Assemblage</term>
<term>Beaver river</term>
<term>Canada centre</term>
<term>Candona rawsoni</term>
<term>Centre</term>
<term>Clarksburg</term>
<term>Clayey silt</term>
<term>Cold water</term>
<term>Collingwood township</term>
<term>Conventus</term>
<term>Cyperaceae</term>
<term>Delorme</term>
<term>Dryas</term>
<term>Dryas integrifolia</term>
<term>Edward lake</term>
<term>Empetrum nigrum</term>
<term>Environment canada</term>
<term>Fossil</term>
<term>Fossil assemblage</term>
<term>Fossil assemblages</term>
<term>Fossil site</term>
<term>Freshwater</term>
<term>Freshwater ostracoda</term>
<term>Freshwater ostracodes</term>
<term>Geol</term>
<term>Geological survey</term>
<term>Glacial</term>
<term>Glacial lake algonquin</term>
<term>Gramineae</term>
<term>Great lakes</term>
<term>Great lakes region</term>
<term>Grey county</term>
<term>High percentages</term>
<term>Huron</term>
<term>Huron basin</term>
<term>Integrifolia</term>
<term>Karrow</term>
<term>Laboratory work</term>
<term>Lagoonal</term>
<term>Lake algonquin</term>
<term>Lake algonquin clay</term>
<term>Lake algonquin deposits</term>
<term>Lake algonquin sediments</term>
<term>Lake erie</term>
<term>Lake huron</term>
<term>Lapidaria</term>
<term>Limnocythere</term>
<term>Limnocythere pseudoreticulata</term>
<term>Lower algonquin beaches</term>
<term>Lower surfaces</term>
<term>Macrofossils</term>
<term>Mollusc</term>
<term>National museum</term>
<term>Natural sciences</term>
<term>Niagara escarpment</term>
<term>Northwestern ontario</term>
<term>Ontario</term>
<term>Organic layer</term>
<term>Ostracoda</term>
<term>Ostracode</term>
<term>Ostracode species</term>
<term>Ostracodes</term>
<term>Other composites</term>
<term>Other herbs</term>
<term>Overlying clay unit</term>
<term>Oxyria digyna</term>
<term>Personal communication</term>
<term>Picea</term>
<term>Pisidium conventus</term>
<term>Plant debris</term>
<term>Plant layer</term>
<term>Plant macrofossils</term>
<term>Pollen record</term>
<term>Pomatiopsis lapidaria</term>
<term>Porsild cody</term>
<term>Port huron</term>
<term>Process research division</term>
<term>Quaternary</term>
<term>Quaternary evolution</term>
<term>Quaternary geology</term>
<term>Quaternary sciences institute</term>
<term>Radiocarbon</term>
<term>Radiocarbon dates</term>
<term>Salix</term>
<term>Salix herbacea</term>
<term>Saxifraga oppositifolia</term>
<term>Sediment</term>
<term>Selaginella selaginoides</term>
<term>Several centuries</term>
<term>Several degrees</term>
<term>Shallow water sediments</term>
<term>Shoreline survey data</term>
<term>Silt</term>
<term>Southern georgian</term>
<term>Southern ontario</term>
<term>Southwestern ontario</term>
<term>Stratigraphic</term>
<term>Stratigraphic section</term>
<term>Stratigraphic variation</term>
<term>Taxon</term>
<term>Tree line</term>
<term>Turfy barrens</term>
<term>Vaccinium</term>
<term>Vaccinium uliginosum</term>
<term>Vallonia pulchella</term>
<term>Valvata tricarinata</term>
<term>Vegetation history</term>
<term>Water levels</term>
<term>York state</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Eau douce</term>
<term>Mollusque</term>
</keywords>
</textClass>
<langUsage><language ident="en">en</language>
</langUsage>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">Abstract: Excavation below the Lake Algonquin gravel beach bar near Clarksburg, Ontario, exposed mollusc-bearing clay over a lens of plant debris. This is the northernmost and most deeply buried Lake Algonquin fossil site found thus far in Ontario. It is the first site to provide dates from directly below the Algonquin beach bar. Two radiocarbon dates of about 11 200 years confirm the age of isostatically transgressing Lake Algonquin. Plant macrofossils (21 taxa), pollen (39 taxa), molluscs (12 taxa), and ostracodes (18 taxa) indicate that the climate was colder than present by several degrees and the forest-tundra ecotone was nearby initially but retreated northward rather quickly. Upward increases in abundances and diversity of molluscs and ostracodes suggest it was a time of rapid migration and colonization of species.</div>
</front>
</TEI>
<affiliations><list><country><li>Canada</li>
<li>États-Unis</li>
</country>
<region><li>Ohio</li>
<li>Ontario</li>
</region>
</list>
<tree><country name="Canada"><noRegion><name sortKey="Karrow, P F" sort="Karrow, P F" uniqKey="Karrow P" first="P. F." last="Karrow">P. F. Karrow</name>
</noRegion>
<name sortKey="Anderson, T W" sort="Anderson, T W" uniqKey="Anderson T" first="T. W." last="Anderson">T. W. Anderson</name>
<name sortKey="Chapman, L J" sort="Chapman, L J" uniqKey="Chapman L" first="L. J." last="Chapman">L. J. Chapman</name>
<name sortKey="Delorme, L D" sort="Delorme, L D" uniqKey="Delorme L" first="L. D." last="Delorme">L. D. Delorme</name>
<name sortKey="Delorme, L D" sort="Delorme, L D" uniqKey="Delorme L" first="L. D." last="Delorme">L. D. Delorme</name>
<name sortKey="Karrow, P F" sort="Karrow, P F" uniqKey="Karrow P" first="P. F." last="Karrow">P. F. Karrow</name>
</country>
<country name="États-Unis"><region name="Ohio"><name sortKey="Miller, B B" sort="Miller, B B" uniqKey="Miller B" first="B. B." last="Miller">B. B. Miller</name>
</region>
</country>
</tree>
</affiliations>
</record>

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Late-glacial paleoenvironment of Lake Algonquin sediments near Clarksburg, Ontario

Late-glacial paleoenvironment of Lake Algonquin sediments near Clarksburg, Ontario

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri