{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/22769"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/22769","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Quaternary geology and glacial history of the Haliburton region, south central Ontario, Canada: A model for glacial and proglacial sedimentation","abstract":"The pattern of glacigenic sedimentation in the Haliburton region suggests that stagnation is an important element in the regional style of deglaciation in areas of moderate bedrock relief (50-150 m), such as the shield terrane of southern Ontario. The record of subglacial processes and sub-ice environments suggests that stagnation began subglacially during active ice-margin retreat. The style of proglacial sedimentation suggests that topographically controlled subglacial drainage systems were the primary mechanism of sediment delivery to the ice-margin, and the prevalence of ice-contact terraces within these deposits indicates that deposition occurred on and around stagnating ice masses.","abstract_html":"The pattern of glacigenic sedimentation in the Haliburton region suggests that stagnation is an important element in the regional style of deglaciation in areas of moderate bedrock relief (50-150 m), such as the shield terrane of southern Ontario. The record of subglacial processes and sub-ice environments suggests that stagnation began subglacially during active ice-margin retreat. The style of proglacial sedimentation suggests that topographically controlled subglacial drainage systems were the primary mechanism of sediment delivery to the ice-margin, and the prevalence of ice-contact terraces within these deposits indicates that deposition occurred on and around stagnating ice masses.","abstract_has_math":false,"creators":["Kaszycki, Christine Anne"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Geology","degree_department":null,"school":null,"contributors":["Johnson, W. Hilton"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2011,"date_issued":"2011-05-07T13:50:54Z","date_published":"2011-05-07T13:50:54Z","updated_at":"2026-07-22T22:25:20Z","subjects":["Geology"],"languages":["eng"],"rights":["Copyright 1989 Kaszycki, Christine Anne"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["AAI8916269","(UMI)AAI8916269"],"render_values":[{"text":"AAI8916269","href":null,"code":true},{"text":"(UMI)AAI8916269","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/22769","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Johnson, W. Hilton"]},{"key":"dc:creator","label":"Author","values":["Kaszycki, Christine Anne"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2011-05-07T13:50:54Z","10000-01-01","1989"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Geology"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Geology"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 1989 Kaszycki, Christine Anne"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["AAI8916269","(UMI)AAI8916269","http://hdl.handle.net/2142/22769"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["The pattern of glacigenic sedimentation in the Haliburton region suggests that stagnation is an important element in the regional style of deglaciation in areas of moderate bedrock relief (50-150 m), such as the shield terrane of southern Ontario. The record of subglacial processes and sub-ice environments suggests that stagnation began subglacially during active ice-margin retreat. The style of proglacial sedimentation suggests that topographically controlled subglacial drainage systems were the primary mechanism of sediment delivery to the ice-margin, and the prevalence of ice-contact terraces within these deposits indicates that deposition occurred on and around stagnating ice masses.","It is hypothesized that deglaciation occurred by stagnation-zone retreat. Bedrock topography was an important control in the stagnation process, as ice blocks were trapped within bedrock basins of all sizes. Four stages of deglaciation and sedimentation have been recognized: (1) ice sheet thinning, subglacial stagnation of entrapped basal ice, development of topographically controlled subglacial drainage systems, and till deposition; (2) active ice retreat, isolation of ice blocks at the ice-margin, and deposition of high level kame and ice-contact diamicton terraces; (3) downwashing of ice blocks, establishment of regional drainage routes and inundation by proglacial lakes, and proglacial basin-fill sedimentation; (4) post-glacial modification and terracing, and renewed clastic sedimentation within modern lakes.","Elevations of shoreline features within the Gull River valley, indicate that an arm of Main Lake Algonquin extended northward from the Kirkfield outlet area into the Haliburton region. Exponential projection of the Main Algonquin water plane from the Kirkfield area, demonstrates that the water plane projected by previous workers is a composite feature comprising progressively younger shorelines from north to south. Therefore, the slopes of previous water plane projections reflect progressively slower uplift rates from north to south producing an apparent flattening of the curve in the zone of assumed isostatic stability, south of the Algonquin 'hinge-line'.","Made available in DSpace on 2011-05-07T13:50:54Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) 8916269.pdf: 22725954 bytes, checksum: 435165ad448e280539c62379bfb0fa3f (MD5) Previous issue date: 1989","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T14:59:52Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:28:17-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission","ETDs are only available to UIUC Users without author permission","U of I Only"]},{"key":"dc:title","label":"Title","values":["Quaternary geology and glacial history of the Haliburton region, south central Ontario, Canada: A model for glacial and proglacial sedimentation"]}]}],"canonical_facts":{"dc:contributor":["Johnson, W. Hilton"],"dc:creator":["Kaszycki, Christine Anne"],"dc:date":["2011-05-07T13:50:54Z","10000-01-01","1989"],"dc:description":["The pattern of glacigenic sedimentation in the Haliburton region suggests that stagnation is an important element in the regional style of deglaciation in areas of moderate bedrock relief (50-150 m), such as the shield terrane of southern Ontario. The record of subglacial processes and sub-ice environments suggests that stagnation began subglacially during active ice-margin retreat. The style of proglacial sedimentation suggests that topographically controlled subglacial drainage systems were the primary mechanism of sediment delivery to the ice-margin, and the prevalence of ice-contact terraces within these deposits indicates that deposition occurred on and around stagnating ice masses.","It is hypothesized that deglaciation occurred by stagnation-zone retreat. Bedrock topography was an important control in the stagnation process, as ice blocks were trapped within bedrock basins of all sizes. Four stages of deglaciation and sedimentation have been recognized: (1) ice sheet thinning, subglacial stagnation of entrapped basal ice, development of topographically controlled subglacial drainage systems, and till deposition; (2) active ice retreat, isolation of ice blocks at the ice-margin, and deposition of high level kame and ice-contact diamicton terraces; (3) downwashing of ice blocks, establishment of regional drainage routes and inundation by proglacial lakes, and proglacial basin-fill sedimentation; (4) post-glacial modification and terracing, and renewed clastic sedimentation within modern lakes.","Elevations of shoreline features within the Gull River valley, indicate that an arm of Main Lake Algonquin extended northward from the Kirkfield outlet area into the Haliburton region. Exponential projection of the Main Algonquin water plane from the Kirkfield area, demonstrates that the water plane projected by previous workers is a composite feature comprising progressively younger shorelines from north to south. Therefore, the slopes of previous water plane projections reflect progressively slower uplift rates from north to south producing an apparent flattening of the curve in the zone of assumed isostatic stability, south of the Algonquin 'hinge-line'.","Made available in DSpace on 2011-05-07T13:50:54Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) 8916269.pdf: 22725954 bytes, checksum: 435165ad448e280539c62379bfb0fa3f (MD5) Previous issue date: 1989","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T14:59:52Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:28:17-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission","ETDs are only available to UIUC Users without author permission","U of I Only"],"dc:identifier":["AAI8916269","(UMI)AAI8916269","http://hdl.handle.net/2142/22769"],"dc:language":["eng"],"dc:rights":["Copyright 1989 Kaszycki, Christine Anne"],"dc:subject":["Geology"],"dc:title":["Quaternary geology and glacial history of the Haliburton region, south central Ontario, Canada: A model for glacial and proglacial sedimentation"],"dc:type":["text"],"thesis:degree_discipline":["Geology"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:25:20Z"}