Radiocarbon Analyses from Cincinnati, Ohio, and Their Implications for Glacial Stratigraphic Interpretations
Abstract Detailed analysis of a site near Cincinnati, Ohio, shows that 14 C ages of samples in a single geologic unit can have a range of several thousand years and ages from different stratigraphic units can overlap. At the Sharonville site, four 14 C samples from organic silt below glaciogenic dep...
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Cambridge University Press (CUP)
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crcambridgeupr:10.1016/0033-5894(90)90068-v 2024-06-09T07:46:49+00:00 Radiocarbon Analyses from Cincinnati, Ohio, and Their Implications for Glacial Stratigraphic Interpretations Lowell, Thomas V. Savage, Kevin M. Scott Brockman, C. Stuckenrath, Robert 1990 http://dx.doi.org/10.1016/0033-5894(90)90068-v http://api.elsevier.com/content/article/PII:003358949090068V?httpAccept=text/xml http://api.elsevier.com/content/article/PII:003358949090068V?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400020755 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 34, issue 1, page 1-11 ISSN 0033-5894 1096-0287 journal-article 1990 crcambridgeupr https://doi.org/10.1016/0033-5894(90)90068-v 2024-05-15T13:09:18Z Abstract Detailed analysis of a site near Cincinnati, Ohio, shows that 14 C ages of samples in a single geologic unit can have a range of several thousand years and ages from different stratigraphic units can overlap. At the Sharonville site, four 14 C samples from organic silt below glaciogenic deposits have an inverted chronologic sequence, suggesting contamination, but nevertheless they indicate the silt was deposited before 27,000 yr B.P. A stump cluster in growth position, wood fragments, and moss from the upper surface of the silt may differ by as much as 2300 14 C yr. Five ages from the stump cluster constrain the timing of a glacier advance of the Laurentide ice sheet to its southern limit in the Cincinnati area at 19,670 ± 68 yr B.P. Overlying glaciogenic sediments contain transported wood that may be as much as 3200 yr older than the advance. This range of ages points out that, for a given site, several age measurements are required to determine when a glacier advance occurred. Because the measured ages in this study span the entire interval suggested for a twofold sequence of advance, retreat, and readvance of the margin of the Miami sublobe, we suggest a single advance to its terminal position in the Cincinnati area as an alternate hypothesis for testing. Article in Journal/Newspaper Ice Sheet Cambridge University Press Stump ENVELOPE(-153.167,-153.167,-86.183,-86.183) The Stump ENVELOPE(-58.161,-58.161,-62.097,-62.097) Quaternary Research 34 1 1 11 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Abstract Detailed analysis of a site near Cincinnati, Ohio, shows that 14 C ages of samples in a single geologic unit can have a range of several thousand years and ages from different stratigraphic units can overlap. At the Sharonville site, four 14 C samples from organic silt below glaciogenic deposits have an inverted chronologic sequence, suggesting contamination, but nevertheless they indicate the silt was deposited before 27,000 yr B.P. A stump cluster in growth position, wood fragments, and moss from the upper surface of the silt may differ by as much as 2300 14 C yr. Five ages from the stump cluster constrain the timing of a glacier advance of the Laurentide ice sheet to its southern limit in the Cincinnati area at 19,670 ± 68 yr B.P. Overlying glaciogenic sediments contain transported wood that may be as much as 3200 yr older than the advance. This range of ages points out that, for a given site, several age measurements are required to determine when a glacier advance occurred. Because the measured ages in this study span the entire interval suggested for a twofold sequence of advance, retreat, and readvance of the margin of the Miami sublobe, we suggest a single advance to its terminal position in the Cincinnati area as an alternate hypothesis for testing. |
format |
Article in Journal/Newspaper |
author |
Lowell, Thomas V. Savage, Kevin M. Scott Brockman, C. Stuckenrath, Robert |
spellingShingle |
Lowell, Thomas V. Savage, Kevin M. Scott Brockman, C. Stuckenrath, Robert Radiocarbon Analyses from Cincinnati, Ohio, and Their Implications for Glacial Stratigraphic Interpretations |
author_facet |
Lowell, Thomas V. Savage, Kevin M. Scott Brockman, C. Stuckenrath, Robert |
author_sort |
Lowell, Thomas V. |
title |
Radiocarbon Analyses from Cincinnati, Ohio, and Their Implications for Glacial Stratigraphic Interpretations |
title_short |
Radiocarbon Analyses from Cincinnati, Ohio, and Their Implications for Glacial Stratigraphic Interpretations |
title_full |
Radiocarbon Analyses from Cincinnati, Ohio, and Their Implications for Glacial Stratigraphic Interpretations |
title_fullStr |
Radiocarbon Analyses from Cincinnati, Ohio, and Their Implications for Glacial Stratigraphic Interpretations |
title_full_unstemmed |
Radiocarbon Analyses from Cincinnati, Ohio, and Their Implications for Glacial Stratigraphic Interpretations |
title_sort |
radiocarbon analyses from cincinnati, ohio, and their implications for glacial stratigraphic interpretations |
publisher |
Cambridge University Press (CUP) |
publishDate |
1990 |
url |
http://dx.doi.org/10.1016/0033-5894(90)90068-v http://api.elsevier.com/content/article/PII:003358949090068V?httpAccept=text/xml http://api.elsevier.com/content/article/PII:003358949090068V?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400020755 |
long_lat |
ENVELOPE(-153.167,-153.167,-86.183,-86.183) ENVELOPE(-58.161,-58.161,-62.097,-62.097) |
geographic |
Stump The Stump |
geographic_facet |
Stump The Stump |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Quaternary Research volume 34, issue 1, page 1-11 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1016/0033-5894(90)90068-v |
container_title |
Quaternary Research |
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34 |
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1 |
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1 |
op_container_end_page |
11 |
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1801376819780255744 |