Drift carbonate on the Canadian Shield
Carbonates occur in the drift over large areas of the Precambrian Shield in Ontario. Paleozoic carbonates were transported by glaciers from the Hudson Bay Lowland and from Manitoba. Local sources in Precambrian rocks also contribute carbonate. A carbonate line corresponding approximately to the Nipi...
Published in: | Canadian Journal of Earth Sciences |
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Language: | English |
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Canadian Science Publishing
1987
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Online Access: | http://dx.doi.org/10.1139/e87-036 http://www.nrcresearchpress.com/doi/pdf/10.1139/e87-036 |
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crcansciencepubl:10.1139/e87-036 2023-12-17T10:31:23+01:00 Drift carbonate on the Canadian Shield Karrow, P. F. Geddes, R. S. 1987 http://dx.doi.org/10.1139/e87-036 http://www.nrcresearchpress.com/doi/pdf/10.1139/e87-036 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 24, issue 2, page 365-369 ISSN 0008-4077 1480-3313 General Earth and Planetary Sciences journal-article 1987 crcansciencepubl https://doi.org/10.1139/e87-036 2023-11-19T13:39:31Z Carbonates occur in the drift over large areas of the Precambrian Shield in Ontario. Paleozoic carbonates were transported by glaciers from the Hudson Bay Lowland and from Manitoba. Local sources in Precambrian rocks also contribute carbonate. A carbonate line corresponding approximately to the Nipigon and Chapleau moraines delimits high–carbonate drift to the north and may represent a significant ice marginal position or readvance about 9500 BP.Shield drift carbonates suggest that there are potential errors in radiocarbon dating of fine organic sediment (old carbon error); that there is a relationship between the occurrence of fossil molluscs in glacial and postglacial lake deposits and drift carbonate distribution; that long-distance transport will affect drift prospecting; and that susceptibility to acidification of lakes is affected by both drift and bedrock composition. Article in Journal/Newspaper Hudson Bay Canadian Science Publishing (via Crossref) Hudson Bay Hudson Canadian Journal of Earth Sciences 24 2 365 369 |
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Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Earth and Planetary Sciences |
spellingShingle |
General Earth and Planetary Sciences Karrow, P. F. Geddes, R. S. Drift carbonate on the Canadian Shield |
topic_facet |
General Earth and Planetary Sciences |
description |
Carbonates occur in the drift over large areas of the Precambrian Shield in Ontario. Paleozoic carbonates were transported by glaciers from the Hudson Bay Lowland and from Manitoba. Local sources in Precambrian rocks also contribute carbonate. A carbonate line corresponding approximately to the Nipigon and Chapleau moraines delimits high–carbonate drift to the north and may represent a significant ice marginal position or readvance about 9500 BP.Shield drift carbonates suggest that there are potential errors in radiocarbon dating of fine organic sediment (old carbon error); that there is a relationship between the occurrence of fossil molluscs in glacial and postglacial lake deposits and drift carbonate distribution; that long-distance transport will affect drift prospecting; and that susceptibility to acidification of lakes is affected by both drift and bedrock composition. |
format |
Article in Journal/Newspaper |
author |
Karrow, P. F. Geddes, R. S. |
author_facet |
Karrow, P. F. Geddes, R. S. |
author_sort |
Karrow, P. F. |
title |
Drift carbonate on the Canadian Shield |
title_short |
Drift carbonate on the Canadian Shield |
title_full |
Drift carbonate on the Canadian Shield |
title_fullStr |
Drift carbonate on the Canadian Shield |
title_full_unstemmed |
Drift carbonate on the Canadian Shield |
title_sort |
drift carbonate on the canadian shield |
publisher |
Canadian Science Publishing |
publishDate |
1987 |
url |
http://dx.doi.org/10.1139/e87-036 http://www.nrcresearchpress.com/doi/pdf/10.1139/e87-036 |
geographic |
Hudson Bay Hudson |
geographic_facet |
Hudson Bay Hudson |
genre |
Hudson Bay |
genre_facet |
Hudson Bay |
op_source |
Canadian Journal of Earth Sciences volume 24, issue 2, page 365-369 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e87-036 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
24 |
container_issue |
2 |
container_start_page |
365 |
op_container_end_page |
369 |
_version_ |
1785584686257405952 |