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AMS Radiocarbon Age of the Upper Mississippi Valley Roxana Silt

Published online by Cambridge University Press:  20 January 2017

David S. Leigh  and
James C. Knox
David S. Leigh
Affiliation:
Department of Geography, University of Georgia, Athens, Georgia 30602
James C. Knox
Affiliation:
Department of Geography, University of Wisconsin, Madison, Wisconsin 53706
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Abstract

Accelerator mass spectrometer radiocarbon ages of the Roxana Silt (loess) along the Upper Mississippi Valley of Wisconsin and Minnesota indicate that loess sedimentation of the Roxana Silt occurred between about 55,000 and 27,000 14 C yr B.P. However, due to local environmental controls, the basal age at any given site may range from 55,000 to 35,000 14C yr B.P. The radiocarbon ages presented here are in agreement with previous radiocarbon ages for the Roxana Silt in its type area of west-central Illinois, but indicate that long-term sedimentation rates along the bluffline of the Upper Mississippi Valley were very slow (4-8 cm/1000 yr) compared to long-term sedimentation rates along the bluffline of the type area (40-70 cm/1000 yr). Comparison of radiocarbon ages for midcontinent middle Wisconsinan loess deposits indicates that sedimentation along the Mississippi River valley may have preceded loess sedimentation along the Missouri River valley by as much as 20,000 yr or that basal ages for middle Wisconsinan loess along the Missouri Valley are erroneously young. The bracketing ages for the Upper Mississippi Valley Roxana Silt indicate that the Mississippi River valley was receiving outwash sedimentation between 55,000 and 27,000 14C yr B.P.

Type
Articles
Information
Quaternary Research , Volume 39 , Issue 3 , May 1993 , pp. 282 - 289
Copyright
University of Washington

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References

Baker, R. G. Schwert, D. P. Bettis, E. A. III Kemis, T. J. Horton, D. G., and Semkin, H. A. (1991). Mid-Wisconsinan stratigraphy and paleoenvironments at the St. Charles site in south-central Iowa. Geological Society of America Bulletin 103, 210–220.Google Scholar
Bettis, E. A. III, (1990). “Holocene Alluvial Stratigraphy and Selected Aspects of the Quaternary History of Western Iowa.” Midwest Friends of the Pleistocene 37th Field Conference. Iowa Quaternary Studies Group Contribution 36, Iowa City.Google Scholar
Dredge, L. A., and Thorleifson, L. H. (1987). The middle Wisconsinan history of the Laurentide Ice Sheet. Geographie Physique et Quater-naire 41, 215–235.CrossRefGoogle Scholar
Dreeszen, V. H. (1970), The stratigraphic framework of Pleistocene glacial and periglacial deposits in the central Plains. In “Pleistocene and Recent Environments of the Central Great Plains” (Dort, W. and Jones, J. K., Eds.), pp. 9–22. Kansas University Department of Geology Special Publication 3.Google Scholar
Eyles, N. E., and Westgate, J. A. (1987). Restricted regional extent of the Laurentide Ice Sheet in the Great Lakes basins during early Wisconsin glaciation. Geology 15, 537–540.Google Scholar
Follmer, L. R. (1983). Sangamon and Wisconsinan pedogenesis in the midwestern United States. In “Quaternary Environments of the United States: The Late Pleistocene” (Porter, S. C., Ed.), Vol. 1, pp. 138–144. Univ. of Minnesota Press, Minneapolis.Google Scholar
Forman, S. L. (1990). Thermoluminescence and radiocarbon chronology of loess deposition at the Loveland paratype, Iowa. In “Ho-locene Alluvial Stratigraphy and Selected Aspects of Quaternary History of Western Iowa” (Bettis, E. A. III, Ed.), pp. 165–172. Midwest Friends of the Pleistocene 37th Field Conference. Iowa Quaternary Studies Group Contribution 36, Iowa City.Google Scholar
Forman, S. L. Bettis, E. A. III Kemmis, T. J., and Miller, B. B. (1992). Chronologic evidence for multiple periods of loess deposition during the late Pleistocene in the Missouri and Mississippi River Valley, United States: Implications for the activity of the Laurentide Ice Sheet. Paleogeography, Paleoclimatology, Paleoecology 93, 71–83.CrossRefGoogle Scholar
Frye, J. C Glass, H. D., and Willman, H. B. (1962). “Stratigraphy and Mineralogy of Wisconsinan Loesses of Illinois. Illinois State Geological Survey Circular 334.Google Scholar
Hallberg, G. R. (1978). “Standard Procedures Used for the Evaluation of Quaternary Materials in Iowa.” Iowa Geological Survey Technical Information Series 8.Google Scholar
Hallberg, G. R. Lucas, J. R.. and Goodman, C. M. (1978). Semi-quantitative analysis of clay mineralogy. In “Standard Procedures for Evaluation of Quaternary Materials in Iowa (Hallberg, G. R., Ed.), pp. 5–21. Iowa Geological Survey Technical Information Series 8.Google Scholar
Johnson, W. C. (1991). Late Pleistocene and Holocene eolian stratigraphy of the central Great Plains and paleoclimate reconstructions. Geological Society of America Abstracts with Programs 23, A284.Google Scholar
Johnson, W. H., and Follmer, L. R. (1989). Source and origin of Rox-ana Silt and middle Wisconsinan midcontinent glacial activity. Quaternary Research 31, 319–331.Google Scholar
Knox, J. C Leigh, D. S., and Frolking, T. A. (1990). Rountree formation (new). In “Geology of Sauk County, Wisconsin” (Clayton, L. and Attig, J. W., Eds.), pp. 64–67. Wisconsin Geological and Natural History Survey Information Circular 67. [Appendix] Google Scholar
Leigh, D. S. (1990a). Roxana loess of the Upper Mississippi Valley: Lithology and genesis. Geological Society of America Abstracts with Programs 22, 38.Google Scholar
Leigh, D. S. (1990b). Roxana loess of the Upper Mississippi Valley: Genesis and paleoenvironment. Association of American Geographers Annual Meeting Program and Abstracts 138.Google Scholar
Leigh, D. S. (1991). “Origin and Paleoenvironment of the Upper Mississippi Valley Roxana Silt.” Unpublished Ph.D. dissertation, Uni-versity of Wisconsin, Madison.Google Scholar
Leigh, D. S. McSweeney, K., and Knox, J. C. (1989). Micromorphol-ogy of a “welded” Sangamonian to Wisconsinan age paleosol in southwestern Wisconsin. Catena 16, 575–587.Google Scholar
Lewis, G. C Fosberg, M. A., and Falen, A. L. (1984). Identification of loess by particle size distributions using the Coulter Counter TA II, Soil Science 137, 172–176.Google Scholar
Machette, M. (1986). Calcium and magnesium carbonates. In “Field and Laboratory Methods Used in a Soil Chronosequence Study” (Singer, M. J. and Janitzky, P., Eds.), pp. 30–33. U.S. Geological Survey Bulletin 1648.Google Scholar
Mason, J. A., and Nater, E. A. (1991). Stratigraphy and transport direction of Wisconsinan loess in southeastern Minnesota. Geological Society of America Abstracts with Programs 23, A408.Google Scholar
McKay, E. D. (1977). “Stratigraphy and Zonation of Wisconsinan Loesses in Southwestern Illinois.” Unpublished Ph.D. thesis, Uni-versity of Illinois, Urbana.Google Scholar
McKay, E. D. (1979a). Wisconsinan loess stratigraphy of Illinois. In “Wisconsinan, Sangamonian, and Illinoian Statigraphy in Central Illinois,” pp. 95–108. Illinois State Geological Survey Guidebook 13.Google Scholar
McKay, E. D. (1979b). Stratigraphy of Wisconsinan and older loesses in southwestern Illinois. In “Geology of Western Illinois,” pp. 37–67. Illinois State Geological Survey Guidebook 14.Google Scholar
Meixner, R. (1986). Total Phosphorus. In “Field and Laboratory Methods Used in a Soil Chronosequence Study” (Singer, M. J. and Janitzky, P., Eds.), pp. 43–44. U.S. Geological Survey Bulletin 1648.Google Scholar
Moore, D. M., and Reynolds, R. C. (1989). “X-ray Diffraction and the Identification of Clay Minerals.” Oxford Univ. Press, New York.Google Scholar
Norton, L. D., and Bradford, J. M. (1985). Thermoluminescence dating of loess from western Iowa. Soil Science Society of America Journal 49, 708–712.Google Scholar
Norton, D. McSweeney, K., and West, L. T. (1988). Soil development and loess stratigraphy of the midcontinental U.S.A. In “Loess: Its Distribution Geology, and Soils” (Eden, D. N. and Furkert, R. J., Eds.), pp. 145–159. Balkema, Rotterdam.Google Scholar
Olson, R. V., and Ellis, R. (1982). Iron. In “Methods of Soil Analysis, Part 2. Chemical and Microbiological Properties” (Page, A. L., Ed.), pp. 311–312. Soil Science Society of America, Madison.Google Scholar
Ruhe, R. V. (1976). Stratigraphy of mid-continent loess U.S.A. In “The Quaternary Stratigraphy of North America” (Mahaney, W. C., Ed.), pp. 197–211. Dowden, Hutchinson, and Ross, Stroudsburg, PA.Google Scholar
Singer, M. J., and Janitzky, P. (1986). “Field and Laboratory Methods Used in a Soil Chronosequence Study.” U.S. Geological Survey Bulletin 1648.Google Scholar
Willman, H. B., and Frye, J. C. (1970). Pleistocene Stratigraphy of Illinois. Illinois State Geological Survey Bulletin 94.Google Scholar
Winters, H. A. Alford, J. A., and Rieck, R. L. (1988). The anomalous Roxana Silt and mid-Wisconsinan events in and near southern Michigan. Quaternary Research 29, 25–35.Google Scholar