Holocene paleohydrology from Lake of the Woods and Shoal Lake cores using ostracodes, thecamoebians and sediment properties
Ten sediment cores (2.0-8.5 m long) from various locations in Lake of the Woods (LOTWs) and Shoal Lake (SL) were recovered in August 2006, using a Kullenberg piston corer. From the study of the macrofossils (primarily ostracodes and thecamoebians) and the sediments in six processed cores, variations...
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ftcanadathes:oai:collectionscanada.gc.ca:MWU.1993/4098 2023-05-15T16:41:01+02:00 Holocene paleohydrology from Lake of the Woods and Shoal Lake cores using ostracodes, thecamoebians and sediment properties Mellors, Trevor Teller, James (Geological Sciences) Last, William (Geological Sciences) Buhay, William (University of Winnipeg) 2010-09-07T16:37:34Z http://hdl.handle.net/1993/4098 en_US eng http://hdl.handle.net/1993/4098 Ostracodes Thecamoebians Isostatic Rebound Climate Instabily Lake of the Woods Shoal Lake Holocene Hypsithermal Laurentide Ice Sheet Lake Agassiz Marquette Readvance Charcoal Paleohydrology Sediments 2010 ftcanadathes 2014-03-30T00:50:46Z Ten sediment cores (2.0-8.5 m long) from various locations in Lake of the Woods (LOTWs) and Shoal Lake (SL) were recovered in August 2006, using a Kullenberg piston corer. From the study of the macrofossils (primarily ostracodes and thecamoebians) and the sediments in six processed cores, variations in paleoconditions were observed both spatially and temporally, and the timing of these changes were identified in over 10,000 years of postglacial history. Ostracodes disappeared from the LOTWs record from about 9000 to 7600 calendar years before present (BP) (about 5800 in SL), after LOTWs became isolated from glacial Lake Agassiz. Thecamoebians appeared in many cores around 2000 calendar years BP, with the earliest appearance at 9200. Buried paleosols in three cores indicate portions of the lake dried on several occasions during the Hypsithermal, perhaps indicating the region’s future climate response. One core contained a pink clay bed indicative of the Marquette readvance about 11,300 years (BP), and the subsequent input of water from the Superior basin. Other/Unknown Material Ice Sheet Theses Canada/Thèses Canada (Library and Archives Canada) Glacial Lake ENVELOPE(-129.463,-129.463,58.259,58.259) Shoal Lake ENVELOPE(-114.937,-114.937,56.207,56.207) Woods Shoal ENVELOPE(-129.462,-129.462,52.770,52.770) |
institution |
Open Polar |
collection |
Theses Canada/Thèses Canada (Library and Archives Canada) |
op_collection_id |
ftcanadathes |
language |
English |
topic |
Ostracodes Thecamoebians Isostatic Rebound Climate Instabily Lake of the Woods Shoal Lake Holocene Hypsithermal Laurentide Ice Sheet Lake Agassiz Marquette Readvance Charcoal Paleohydrology Sediments |
spellingShingle |
Ostracodes Thecamoebians Isostatic Rebound Climate Instabily Lake of the Woods Shoal Lake Holocene Hypsithermal Laurentide Ice Sheet Lake Agassiz Marquette Readvance Charcoal Paleohydrology Sediments Mellors, Trevor Holocene paleohydrology from Lake of the Woods and Shoal Lake cores using ostracodes, thecamoebians and sediment properties |
topic_facet |
Ostracodes Thecamoebians Isostatic Rebound Climate Instabily Lake of the Woods Shoal Lake Holocene Hypsithermal Laurentide Ice Sheet Lake Agassiz Marquette Readvance Charcoal Paleohydrology Sediments |
description |
Ten sediment cores (2.0-8.5 m long) from various locations in Lake of the Woods (LOTWs) and Shoal Lake (SL) were recovered in August 2006, using a Kullenberg piston corer. From the study of the macrofossils (primarily ostracodes and thecamoebians) and the sediments in six processed cores, variations in paleoconditions were observed both spatially and temporally, and the timing of these changes were identified in over 10,000 years of postglacial history. Ostracodes disappeared from the LOTWs record from about 9000 to 7600 calendar years before present (BP) (about 5800 in SL), after LOTWs became isolated from glacial Lake Agassiz. Thecamoebians appeared in many cores around 2000 calendar years BP, with the earliest appearance at 9200. Buried paleosols in three cores indicate portions of the lake dried on several occasions during the Hypsithermal, perhaps indicating the region’s future climate response. One core contained a pink clay bed indicative of the Marquette readvance about 11,300 years (BP), and the subsequent input of water from the Superior basin. |
author2 |
Teller, James (Geological Sciences) Last, William (Geological Sciences) Buhay, William (University of Winnipeg) |
author |
Mellors, Trevor |
author_facet |
Mellors, Trevor |
author_sort |
Mellors, Trevor |
title |
Holocene paleohydrology from Lake of the Woods and Shoal Lake cores using ostracodes, thecamoebians and sediment properties |
title_short |
Holocene paleohydrology from Lake of the Woods and Shoal Lake cores using ostracodes, thecamoebians and sediment properties |
title_full |
Holocene paleohydrology from Lake of the Woods and Shoal Lake cores using ostracodes, thecamoebians and sediment properties |
title_fullStr |
Holocene paleohydrology from Lake of the Woods and Shoal Lake cores using ostracodes, thecamoebians and sediment properties |
title_full_unstemmed |
Holocene paleohydrology from Lake of the Woods and Shoal Lake cores using ostracodes, thecamoebians and sediment properties |
title_sort |
holocene paleohydrology from lake of the woods and shoal lake cores using ostracodes, thecamoebians and sediment properties |
publishDate |
2010 |
url |
http://hdl.handle.net/1993/4098 |
long_lat |
ENVELOPE(-129.463,-129.463,58.259,58.259) ENVELOPE(-114.937,-114.937,56.207,56.207) ENVELOPE(-129.462,-129.462,52.770,52.770) |
geographic |
Glacial Lake Shoal Lake Woods Shoal |
geographic_facet |
Glacial Lake Shoal Lake Woods Shoal |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_relation |
http://hdl.handle.net/1993/4098 |
_version_ |
1766031445900394496 |