Skip to Main Content
Tree-ring records of near-Younger Dryas time in central North America : preliminary results from the Lincoln Quarry site, central Illinois, USAAuthor(s): Irina P. Panyushkina; Steven W. Leavitt; Alex Wiedenhoeft; Sarah Noggle; Brandon Curry; Eric Grimm
Source: Radiocarbon. Vol. 46, no. 2 (2004): Pages 933-941
Publication Series: Miscellaneous Publication
PDF: Download Publication (189 KB)
DescriptionThe abrupt millennial-scale changes associated with the Younger Dryas (YD) event (“chronozone”) near the dawn of the Holocene are at least hemispheric, if not global, in extent. Evidence for the YD cold excursion is abundant in Europe but fairly meager in central North America. We are engaged in an investigation of high-resolution environmental changes in mid-North America over several millennia (about 10,000 to 14,000 BP) during the Late Glacial-Early Holocene transition, including the YD interval. Several sites containing logs or stumps have been identified and we are in the process of initial sampling or re-sampling them for this project. Here, we report on a site in central Illinois containing a deposit of logs initially thought to be of YD age preserved in alluvial sands. The assemblage ofwood represents hardwood (angiosperm) trees, and the ring-width characteristics are favorable to developing formal tree- ring chronologies. However, 4 new radiocarbon dates indicate deposition ofwood may have taken place over at least 8000 14C yr (6000–14,000 BP). This complicates the effort to develop a single floating chronology of several hundred years at this site, but it may provide wood from a restricted region over a long period of time from which to develop a sequence of floating chronologies, the timing of deposition and preservation of which could be related to paleoclimatic events and onditions.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationPanyushkina, Irina P.; Leavitt, Steven W.; Wiedenhoeft, Alex; Noggle, Sarah; Curry, Brandon; Grimm, Eric. 2004. Tree-ring records of near-Younger Dryas time in central North America : preliminary results from the Lincoln Quarry site, central Illinois, USA. Radiocarbon. Vol. 46, no. 2 (2004): Pages 933-941
KeywordsTree-rings, wood fossils, Younger-Dryas event, wood anatomy, chronology
- Tree-Ring Investigation of Holocene Flood-Deposited Wood From the Oneida Lake Watershed, New York State
- A multiproxy environmental investigation of Holocene wood from a submerged conifer forest in Lake Huron, USA
- Late Glacial and Holocene records of tree-killing conifer bark beetles in Europe and North America: Implications for forest disturbance dynamics
XML: View XML