Radiocarbon Ages of Soils and Charcoal in Late Wisconsinan Loess, South-Central Nebraska
| Autor: | Steven R. Holen, David W. May |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
010506 paleontology
01 natural sciences law.invention Corrected Age Arts and Humanities (miscellaneous) law Loess 0601 history and archaeology Organic matter Stadial Radiocarbon dating Charcoal 0105 earth and related environmental sciences Earth-Surface Processes chemistry.chemical_classification Hydrology River valley 060102 archaeology 06 humanities and the arts Archaeology chemistry visual_art Soil water visual_art.visual_art_medium General Earth and Planetary Sciences Geology |
| Zdroj: | Quaternary Research. 39:55-58 |
| ISSN: | 1096-0287 0033-5894 |
| DOI: | 10.1006/qres.1993.1006 |
| Popis: | The Farmdale Soil occurs below late Wisconsinan loess throughout the U.S. Midwest. At the La Sena site in the central Great Plains, humates in the Farmdale Interstadial Soil have a corrected age of 21,000 yr B.P. Humates in a buried Bt horizon and a bulk sample of overlying loess 2.5 m above the Farmdale Interstadial Soil have ages of 17,000 and 19,000 yr B.P., respectively. In the Republican River Valley Picea (spruce) charcoal is common in the lower meter of Peoria loess. Near Bloomington, Nebraska, humates from burned organic matter only 60 cm above the base of Peoria loess have a corrected age of ca. 19,000 yr B.P. |
| Databáze: | OpenAIRE |
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