The glacial geomorphology of West-Central Newfoundland; Halls Bay to the Topsails
During the late Wisconsin glaciation, ice flow in west-central Newfoundland was to the north-northeast and northeast, sub-parallel to structural lineations. Constructional forms at this stage included drumlins, drumlinoid forms and ribbed moraine. -- The coast of Halls Bay was deglaciated about 12,0...
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Memorial University of Newfoundland
1973
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ftmemorialuniv:oai:research.library.mun.ca:5532 2023-10-01T03:57:34+02:00 The glacial geomorphology of West-Central Newfoundland; Halls Bay to the Topsails Tucker, Christopher M. 1973 application/pdf https://research.library.mun.ca/5532/ https://research.library.mun.ca/5532/1/Tucker_ChristopherM.pdf https://research.library.mun.ca/5532/3/Tucker_ChristopherM.pdf en eng Memorial University of Newfoundland https://research.library.mun.ca/5532/1/Tucker_ChristopherM.pdf https://research.library.mun.ca/5532/3/Tucker_ChristopherM.pdf Tucker, Christopher M. <https://research.library.mun.ca/view/creator_az/Tucker=3AChristopher_M=2E=3A=3A.html> (1973) The glacial geomorphology of West-Central Newfoundland; Halls Bay to the Topsails. Masters thesis, Memorial University of Newfoundland. thesis_license Thesis NonPeerReviewed 1973 ftmemorialuniv 2023-09-03T06:45:24Z During the late Wisconsin glaciation, ice flow in west-central Newfoundland was to the north-northeast and northeast, sub-parallel to structural lineations. Constructional forms at this stage included drumlins, drumlinoid forms and ribbed moraine. -- The coast of Halls Bay was deglaciated about 12,000 B.P. in a relatively short period during which glaciomarine deltas were formed at Springdale, Dock Point, White Point, Barney's Brook, West Pond, South Brook and Sugarloaf; the latter three being remnants of a continuous terrace. Subsequent net isostatic and eustatic change positioned the deltas approximately 250 feet (75 meters) above present sea level. -- After the initial coastal stage of deglaciation, ice withdrew inland by stagnating in the valleys and lowlands leaving ridged ablation moraine and kettle topography. -- Ice receded in this manner to a plateau level 19 miles (30 kms.) from the coast, where a pause in retreat occurred. During this stage a series of recessional moraines was built and a zone of eskers formed near Barney's Brook and southeast of Sheffield Hill. Surficial crevasse fillings are also found within this zone. A final, topographically controlled flow into the Kitty's Brook - Chain Lakes valley system followed by stagnation, resulted in the fabrication of a series of recessional-ablation moraines. -- Last ice in the field area was situated to the southwest of Gaff Topsail and is evidenced by an area of hummocky, disintegration moraine. Thesis Newfoundland Memorial University of Newfoundland: Research Repository Sheffield South Brook ENVELOPE(-56.148,-56.148,49.583,49.583) White Point ENVELOPE(-56.582,-56.582,49.833,49.833) |
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Open Polar |
collection |
Memorial University of Newfoundland: Research Repository |
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ftmemorialuniv |
language |
English |
description |
During the late Wisconsin glaciation, ice flow in west-central Newfoundland was to the north-northeast and northeast, sub-parallel to structural lineations. Constructional forms at this stage included drumlins, drumlinoid forms and ribbed moraine. -- The coast of Halls Bay was deglaciated about 12,000 B.P. in a relatively short period during which glaciomarine deltas were formed at Springdale, Dock Point, White Point, Barney's Brook, West Pond, South Brook and Sugarloaf; the latter three being remnants of a continuous terrace. Subsequent net isostatic and eustatic change positioned the deltas approximately 250 feet (75 meters) above present sea level. -- After the initial coastal stage of deglaciation, ice withdrew inland by stagnating in the valleys and lowlands leaving ridged ablation moraine and kettle topography. -- Ice receded in this manner to a plateau level 19 miles (30 kms.) from the coast, where a pause in retreat occurred. During this stage a series of recessional moraines was built and a zone of eskers formed near Barney's Brook and southeast of Sheffield Hill. Surficial crevasse fillings are also found within this zone. A final, topographically controlled flow into the Kitty's Brook - Chain Lakes valley system followed by stagnation, resulted in the fabrication of a series of recessional-ablation moraines. -- Last ice in the field area was situated to the southwest of Gaff Topsail and is evidenced by an area of hummocky, disintegration moraine. |
format |
Thesis |
author |
Tucker, Christopher M. |
spellingShingle |
Tucker, Christopher M. The glacial geomorphology of West-Central Newfoundland; Halls Bay to the Topsails |
author_facet |
Tucker, Christopher M. |
author_sort |
Tucker, Christopher M. |
title |
The glacial geomorphology of West-Central Newfoundland; Halls Bay to the Topsails |
title_short |
The glacial geomorphology of West-Central Newfoundland; Halls Bay to the Topsails |
title_full |
The glacial geomorphology of West-Central Newfoundland; Halls Bay to the Topsails |
title_fullStr |
The glacial geomorphology of West-Central Newfoundland; Halls Bay to the Topsails |
title_full_unstemmed |
The glacial geomorphology of West-Central Newfoundland; Halls Bay to the Topsails |
title_sort |
glacial geomorphology of west-central newfoundland; halls bay to the topsails |
publisher |
Memorial University of Newfoundland |
publishDate |
1973 |
url |
https://research.library.mun.ca/5532/ https://research.library.mun.ca/5532/1/Tucker_ChristopherM.pdf https://research.library.mun.ca/5532/3/Tucker_ChristopherM.pdf |
long_lat |
ENVELOPE(-56.148,-56.148,49.583,49.583) ENVELOPE(-56.582,-56.582,49.833,49.833) |
geographic |
Sheffield South Brook White Point |
geographic_facet |
Sheffield South Brook White Point |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_relation |
https://research.library.mun.ca/5532/1/Tucker_ChristopherM.pdf https://research.library.mun.ca/5532/3/Tucker_ChristopherM.pdf Tucker, Christopher M. <https://research.library.mun.ca/view/creator_az/Tucker=3AChristopher_M=2E=3A=3A.html> (1973) The glacial geomorphology of West-Central Newfoundland; Halls Bay to the Topsails. Masters thesis, Memorial University of Newfoundland. |
op_rights |
thesis_license |
_version_ |
1778529166309720064 |