The Intensity of Geochemical Weathering in a Toposequence Formed on Granitic Till at Thor Lake, Northwest Territories
From standard cell data and a principal component analysis, the intensity of geochemical weathering in the toposequence developed at Thor Lake, Northwest Territories was determined as follows: Degraded Dystric Brunisols formed on the dry crestal sites were weakly weathered; the Orthic Humo-Ferric Po...
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ftmcmaster:oai:macsphere.mcmaster.ca:11375/9712 2023-05-15T17:46:32+02:00 The Intensity of Geochemical Weathering in a Toposequence Formed on Granitic Till at Thor Lake, Northwest Territories Fox, Anne Catherine Bunting, B. T. Geography 2009-06-22 http://hdl.handle.net/11375/9712 unknown opendissertations/481 1133 877425 http://hdl.handle.net/11375/9712 Geography thesis 2009 ftmcmaster 2022-03-22T21:10:36Z From standard cell data and a principal component analysis, the intensity of geochemical weathering in the toposequence developed at Thor Lake, Northwest Territories was determined as follows: Degraded Dystric Brunisols formed on the dry crestal sites were weakly weathered; the Orthic Humo-Ferric Podzol found on moist terrace and slope sites as well as the Gleyed Humic Podzol situated adjacent to the thaw pond were moderately weathered in relation to the other soils; whereas the Gleyed Humo-Ferric Podzol located in the moist linear depressions revealed the maximum intensity of geochemical weathering, that is, the maximum removal of mobile ions and the greatest alteration from a stable parent material. It was established that the iron-magnesium bearing minerals were initially weathered from the parent material; calcium, sodium, and then potassium were removed by the soil solution from the A horizon; iron, aluminum, and phosphorus were the prime depositional cations in the B horizon with silicon increasing as a residual cation in the A horizon. Master of Science (MS) Thesis Northwest Territories MacSphere (McMaster University) Northwest Territories |
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Open Polar |
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MacSphere (McMaster University) |
op_collection_id |
ftmcmaster |
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unknown |
topic |
Geography |
spellingShingle |
Geography Fox, Anne Catherine The Intensity of Geochemical Weathering in a Toposequence Formed on Granitic Till at Thor Lake, Northwest Territories |
topic_facet |
Geography |
description |
From standard cell data and a principal component analysis, the intensity of geochemical weathering in the toposequence developed at Thor Lake, Northwest Territories was determined as follows: Degraded Dystric Brunisols formed on the dry crestal sites were weakly weathered; the Orthic Humo-Ferric Podzol found on moist terrace and slope sites as well as the Gleyed Humic Podzol situated adjacent to the thaw pond were moderately weathered in relation to the other soils; whereas the Gleyed Humo-Ferric Podzol located in the moist linear depressions revealed the maximum intensity of geochemical weathering, that is, the maximum removal of mobile ions and the greatest alteration from a stable parent material. It was established that the iron-magnesium bearing minerals were initially weathered from the parent material; calcium, sodium, and then potassium were removed by the soil solution from the A horizon; iron, aluminum, and phosphorus were the prime depositional cations in the B horizon with silicon increasing as a residual cation in the A horizon. Master of Science (MS) |
author2 |
Bunting, B. T. Geography |
format |
Thesis |
author |
Fox, Anne Catherine |
author_facet |
Fox, Anne Catherine |
author_sort |
Fox, Anne Catherine |
title |
The Intensity of Geochemical Weathering in a Toposequence Formed on Granitic Till at Thor Lake, Northwest Territories |
title_short |
The Intensity of Geochemical Weathering in a Toposequence Formed on Granitic Till at Thor Lake, Northwest Territories |
title_full |
The Intensity of Geochemical Weathering in a Toposequence Formed on Granitic Till at Thor Lake, Northwest Territories |
title_fullStr |
The Intensity of Geochemical Weathering in a Toposequence Formed on Granitic Till at Thor Lake, Northwest Territories |
title_full_unstemmed |
The Intensity of Geochemical Weathering in a Toposequence Formed on Granitic Till at Thor Lake, Northwest Territories |
title_sort |
intensity of geochemical weathering in a toposequence formed on granitic till at thor lake, northwest territories |
publishDate |
2009 |
url |
http://hdl.handle.net/11375/9712 |
geographic |
Northwest Territories |
geographic_facet |
Northwest Territories |
genre |
Northwest Territories |
genre_facet |
Northwest Territories |
op_relation |
opendissertations/481 1133 877425 http://hdl.handle.net/11375/9712 |
_version_ |
1766150236134178816 |