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ETD Abstract Container
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Pre-Illinoian Glaciation and Landscape Evolution in the Cincinnati, Ohio / Northern Kentucky Region
Author Info
Nealon, John S.
Permalink:
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1367940441
Abstract Details
Year and Degree
2013, PhD, University of Cincinnati, Arts and Sciences: Geology.
Abstract
The Quaternary evolution of northern Kentucky near Cincinnati Ohio is dominated by multiple glaciations and changing drainage pathways. One problematic feature is the so-called Deep Stage where a major valley system was eroded below modern base levels. Over 90 deep borings provide evidence for at least five pre-Wisconsinan glacial advances of the Laurentide ice margin that reached into northern Kentucky. Two of these advances are identified in the Northern Kentucky uplands. This indicates that the portion of the now-buried Deep Stage valley west of Boone County, Kentucky was in place at the time of the initial Laurentide ice sheet invasion into the region. The diversion of fluvial pathways produced temporary lakes. The Burlington Clays of Boone County, Kentucky were deposited in an unnamed lake west of the Anderson Ferry Divide and were separate from the Claryville Clays, which were deposited in Lake Claryville east of the Divide. The Burlington and Claryville Clays were deposited in separate lakes and at separate times, with at least one interval in which they were the same lake. These lakes were fed by southerly sources; eventually, the composition of the Burlington Clays was affected by the encroaching Laurentide glacier. Lake Claryville was drained part of the time via the Levee, Kentucky col and its associated spillways, and by extension, via the Old and existing Kentucky Rivers. The lake was also drained part of the time by cols in the Anderson Ferry Divide in and south of Walton, Kentucky, and by the Old Eagle River and the existing Eagle Creek. This study employed the glacial systems model (GSM) of Tarasov et al. (2012) to model the effects of ice advance and retreat and to model the relationships between the Levee spillway, the cols in and near Walton, and the advancing ice front during ice advance and retreat. Because of the significant differences in elevation of the Walton and Levee cols at and near the point of maximum ice advance, the Levee col was not used near the time of maximum ice advance. Rather, the Levee col was used when the ice front was far enough to the north that crustal flexure between Walton and Levee was either at a minimum or was reversed on the leading edge of the forebulge, in combination with the Walton col being at a higher, pre-erosion elevation. The broad significance of this study is that it tapped a new subsurface record of pre-Illinoian glacial events in the midwestern United States. This record suggests that major elements of the present landscape remain from preglacial times.
Committee
Thomas Lowell, Ph.D. (Committee Chair)
C.Dale Elifrits, Ph.D. (Committee Member)
Mark Bowers, Ph.D. (Committee Member)
Warren Huff, Ph.D. (Committee Member)
J Barry Maynard, Ph.D. (Committee Member)
Pages
165 p.
Subject Headings
Geology
Keywords
Quaternary
;
Burlington
;
Anderson Ferry Divide
;
Claryville
;
Deep Stage
;
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Citations
Nealon, J. S. (2013).
Pre-Illinoian Glaciation and Landscape Evolution in the Cincinnati, Ohio / Northern Kentucky Region
[Doctoral dissertation, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1367940441
APA Style (7th edition)
Nealon, John.
Pre-Illinoian Glaciation and Landscape Evolution in the Cincinnati, Ohio / Northern Kentucky Region.
2013. University of Cincinnati, Doctoral dissertation.
OhioLINK Electronic Theses and Dissertations Center
, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1367940441.
MLA Style (8th edition)
Nealon, John. "Pre-Illinoian Glaciation and Landscape Evolution in the Cincinnati, Ohio / Northern Kentucky Region." Doctoral dissertation, University of Cincinnati, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1367940441
Chicago Manual of Style (17th edition)
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Document number:
ucin1367940441
Download Count:
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Copyright Info
© 2013, all rights reserved.
This open access ETD is published by University of Cincinnati and OhioLINK.