Fingerprinting Quaternary Subglacial Processes on Hall Peninsula, Baffin Island, using Multiproxy Data
It is important to study subglacial environments in northern Canada for many reasons, such as to develop a more comprehensive understanding of glacial landscape development and to aid in mineral exploration. The purpose of this research is improve understanding of the Quaternary Geology of north cen...
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University of Waterloo
2014
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ftunivwaterloo:oai:uwspace.uwaterloo.ca:10012/8176 2023-05-15T15:35:23+02:00 Fingerprinting Quaternary Subglacial Processes on Hall Peninsula, Baffin Island, using Multiproxy Data Johnson, Cassia 2014 http://hdl.handle.net/10012/8176 en eng University of Waterloo http://hdl.handle.net/10012/8176 Quaternary Geology Hall Peninsula Geochemistry Landscape Analysis Mineral Exploration Subglacial Dynamics Baffin Island Laurentide Ice Sheet Earth Sciences Master Thesis 2014 ftunivwaterloo 2022-06-18T22:59:55Z It is important to study subglacial environments in northern Canada for many reasons, such as to develop a more comprehensive understanding of glacial landscape development and to aid in mineral exploration. The purpose of this research is improve understanding of the Quaternary Geology of north central Hall Peninsula, Baffin Island, the subglacial dynamics record in particular, in order to provide industry with new knowledge, maps and interpretations to aid in mineral exploration. The glacial history of north-central Hall Peninsula, Baffin Island is very complex. By studying the subglacial landscape using both remote- and field- based techniques it was possible to develop a subglacial landscape map and a flowset map which highlighted areas with different glacial histories and basal thermal regimes. The subglacial dynamics and how they changed spatially and temporally shaped the landscape to what it is today with a mixture of cold, intermediate, and warm-based ice. Through mapping using remote sensing and field methods, seven glacial landform and striation directions were found and grouped into four ice flow events. The identified ice flows include regional flows, northern and eastern fjord influenced areas, central deglacial flows, and modern icecap flows. Subglacial erosion was investigated using several proxies including streamlined hill elongation ratios, streamlined hill density, and bedrock controlled lake density studies. These proxies together with the subglacial landscape map were overlaid to select discrete zones, termed glacial terrain zones (GTZs), in an attempt to analyze the subglacial dynamics and how different basal thermal regimes interacted with the landscape. Five glacial terrain zones (GTZs) were identified, with different spatio-temporal basal ice regimes and landform assemblages. The first zone (GTZ 1) is characterized by an expansive flowset of parallel paleo-flow indicators trending northeast. This zone has the highest degree of areal scour with thin, discontinuous and relatively ... Master Thesis Baffin Island Baffin Hall Peninsula Ice Sheet University of Waterloo, Canada: Institutional Repository Baffin Island Canada Hall Peninsula ENVELOPE(-66.081,-66.081,63.334,63.334) |
institution |
Open Polar |
collection |
University of Waterloo, Canada: Institutional Repository |
op_collection_id |
ftunivwaterloo |
language |
English |
topic |
Quaternary Geology Hall Peninsula Geochemistry Landscape Analysis Mineral Exploration Subglacial Dynamics Baffin Island Laurentide Ice Sheet Earth Sciences |
spellingShingle |
Quaternary Geology Hall Peninsula Geochemistry Landscape Analysis Mineral Exploration Subglacial Dynamics Baffin Island Laurentide Ice Sheet Earth Sciences Johnson, Cassia Fingerprinting Quaternary Subglacial Processes on Hall Peninsula, Baffin Island, using Multiproxy Data |
topic_facet |
Quaternary Geology Hall Peninsula Geochemistry Landscape Analysis Mineral Exploration Subglacial Dynamics Baffin Island Laurentide Ice Sheet Earth Sciences |
description |
It is important to study subglacial environments in northern Canada for many reasons, such as to develop a more comprehensive understanding of glacial landscape development and to aid in mineral exploration. The purpose of this research is improve understanding of the Quaternary Geology of north central Hall Peninsula, Baffin Island, the subglacial dynamics record in particular, in order to provide industry with new knowledge, maps and interpretations to aid in mineral exploration. The glacial history of north-central Hall Peninsula, Baffin Island is very complex. By studying the subglacial landscape using both remote- and field- based techniques it was possible to develop a subglacial landscape map and a flowset map which highlighted areas with different glacial histories and basal thermal regimes. The subglacial dynamics and how they changed spatially and temporally shaped the landscape to what it is today with a mixture of cold, intermediate, and warm-based ice. Through mapping using remote sensing and field methods, seven glacial landform and striation directions were found and grouped into four ice flow events. The identified ice flows include regional flows, northern and eastern fjord influenced areas, central deglacial flows, and modern icecap flows. Subglacial erosion was investigated using several proxies including streamlined hill elongation ratios, streamlined hill density, and bedrock controlled lake density studies. These proxies together with the subglacial landscape map were overlaid to select discrete zones, termed glacial terrain zones (GTZs), in an attempt to analyze the subglacial dynamics and how different basal thermal regimes interacted with the landscape. Five glacial terrain zones (GTZs) were identified, with different spatio-temporal basal ice regimes and landform assemblages. The first zone (GTZ 1) is characterized by an expansive flowset of parallel paleo-flow indicators trending northeast. This zone has the highest degree of areal scour with thin, discontinuous and relatively ... |
format |
Master Thesis |
author |
Johnson, Cassia |
author_facet |
Johnson, Cassia |
author_sort |
Johnson, Cassia |
title |
Fingerprinting Quaternary Subglacial Processes on Hall Peninsula, Baffin Island, using Multiproxy Data |
title_short |
Fingerprinting Quaternary Subglacial Processes on Hall Peninsula, Baffin Island, using Multiproxy Data |
title_full |
Fingerprinting Quaternary Subglacial Processes on Hall Peninsula, Baffin Island, using Multiproxy Data |
title_fullStr |
Fingerprinting Quaternary Subglacial Processes on Hall Peninsula, Baffin Island, using Multiproxy Data |
title_full_unstemmed |
Fingerprinting Quaternary Subglacial Processes on Hall Peninsula, Baffin Island, using Multiproxy Data |
title_sort |
fingerprinting quaternary subglacial processes on hall peninsula, baffin island, using multiproxy data |
publisher |
University of Waterloo |
publishDate |
2014 |
url |
http://hdl.handle.net/10012/8176 |
long_lat |
ENVELOPE(-66.081,-66.081,63.334,63.334) |
geographic |
Baffin Island Canada Hall Peninsula |
geographic_facet |
Baffin Island Canada Hall Peninsula |
genre |
Baffin Island Baffin Hall Peninsula Ice Sheet |
genre_facet |
Baffin Island Baffin Hall Peninsula Ice Sheet |
op_relation |
http://hdl.handle.net/10012/8176 |
_version_ |
1766365713384079360 |