Earth Sciences: Two-Ice-Lobe Model For Kansan Glaciation
The Kansan glaciation should be representative of Early Pleistocene glaciations in the Kansas-Nebraska-Iowa-Missouri region. It is often assumed the Kansan ice-sheet advanced as a single, broad lobe coming from somewhere in Canada. This simple view contrasts with the known complexities of the younge...
Main Author: | |
---|---|
Format: | Text |
Language: | unknown |
Published: |
DigitalCommons@University of Nebraska - Lincoln
1982
|
Subjects: | |
Online Access: | https://digitalcommons.unl.edu/tnas/490 https://digitalcommons.unl.edu/context/tnas/article/1499/viewcontent/TNACX7.pdf |
id |
ftunivnebraskali:oai:digitalcommons.unl.edu:tnas-1499 |
---|---|
record_format |
openpolar |
spelling |
ftunivnebraskali:oai:digitalcommons.unl.edu:tnas-1499 2023-11-12T04:18:46+01:00 Earth Sciences: Two-Ice-Lobe Model For Kansan Glaciation Aber, James S. 1982-01-01T08:00:00Z application/pdf https://digitalcommons.unl.edu/tnas/490 https://digitalcommons.unl.edu/context/tnas/article/1499/viewcontent/TNACX7.pdf unknown DigitalCommons@University of Nebraska - Lincoln https://digitalcommons.unl.edu/tnas/490 https://digitalcommons.unl.edu/context/tnas/article/1499/viewcontent/TNACX7.pdf Transactions of the Nebraska Academy of Sciences and Affiliated Societies text 1982 ftunivnebraskali 2023-10-30T11:27:24Z The Kansan glaciation should be representative of Early Pleistocene glaciations in the Kansas-Nebraska-Iowa-Missouri region. It is often assumed the Kansan ice-sheet advanced as a single, broad lobe coming from somewhere in Canada. This simple view contrasts with the known complexities of the younger Wisconsin glaciation, and indeed there is much evidence that the Kansan glaciation was equally complex. A two-ice-Iobe model for the Kansan glaciation includes two confluent ice-streams, "Dakota Ice" and "Minnesota Ice," both moving generally southward either side of the Coteau des Prairies in eastern South Dakota. Iowa and Missouri were covered mainly by Minnesota Ice, while Dakota Ice advanced into Nebraska and Kansas. The general boundary zone between the two ice-lobes is marked by the Kansas City re-entrant and by the Missouri River north of Kansas City, which may have developed as an interlobate drainage during deglaciation. Text Ice Sheet University of Nebraska-Lincoln: DigitalCommons@UNL Canada |
institution |
Open Polar |
collection |
University of Nebraska-Lincoln: DigitalCommons@UNL |
op_collection_id |
ftunivnebraskali |
language |
unknown |
description |
The Kansan glaciation should be representative of Early Pleistocene glaciations in the Kansas-Nebraska-Iowa-Missouri region. It is often assumed the Kansan ice-sheet advanced as a single, broad lobe coming from somewhere in Canada. This simple view contrasts with the known complexities of the younger Wisconsin glaciation, and indeed there is much evidence that the Kansan glaciation was equally complex. A two-ice-Iobe model for the Kansan glaciation includes two confluent ice-streams, "Dakota Ice" and "Minnesota Ice," both moving generally southward either side of the Coteau des Prairies in eastern South Dakota. Iowa and Missouri were covered mainly by Minnesota Ice, while Dakota Ice advanced into Nebraska and Kansas. The general boundary zone between the two ice-lobes is marked by the Kansas City re-entrant and by the Missouri River north of Kansas City, which may have developed as an interlobate drainage during deglaciation. |
format |
Text |
author |
Aber, James S. |
spellingShingle |
Aber, James S. Earth Sciences: Two-Ice-Lobe Model For Kansan Glaciation |
author_facet |
Aber, James S. |
author_sort |
Aber, James S. |
title |
Earth Sciences: Two-Ice-Lobe Model For Kansan Glaciation |
title_short |
Earth Sciences: Two-Ice-Lobe Model For Kansan Glaciation |
title_full |
Earth Sciences: Two-Ice-Lobe Model For Kansan Glaciation |
title_fullStr |
Earth Sciences: Two-Ice-Lobe Model For Kansan Glaciation |
title_full_unstemmed |
Earth Sciences: Two-Ice-Lobe Model For Kansan Glaciation |
title_sort |
earth sciences: two-ice-lobe model for kansan glaciation |
publisher |
DigitalCommons@University of Nebraska - Lincoln |
publishDate |
1982 |
url |
https://digitalcommons.unl.edu/tnas/490 https://digitalcommons.unl.edu/context/tnas/article/1499/viewcontent/TNACX7.pdf |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Transactions of the Nebraska Academy of Sciences and Affiliated Societies |
op_relation |
https://digitalcommons.unl.edu/tnas/490 https://digitalcommons.unl.edu/context/tnas/article/1499/viewcontent/TNACX7.pdf |
_version_ |
1782335337493692416 |