Journal article
A high-resolution speleothem record of climatic variability at the Allerod-Younger Dryas transition in Missouri, central United States
Palaeogeography, palaeoclimatology, palaeoecology, Vol.176(1-4), pp.147-155
12/25/2001
DOI: 10.1016/S0031-0182(01)00334-0
Abstract
Stable isotopic analysis and (super 234) U/ (super 230) Th mass spectrometry dating of a single calcite stalagmite from Onondaga Cave, east-central Missouri, reveal climatic variability between 13200 and 12400 yr BP coincident with the Allerod-Younger Dryas transition in the GISP2 Greenland ice cores. delta (super 18) O values of speleothem calcite mark decreasing temperatures between 13200 and 13000 yr BP while more rapidly decreasing delta (super 13) C values record a sharp shift toward C (sub 3) vegetation at approximately 13100 yr BP. Because of uncertainties in the chronological control of both this speleothem and the GISP2 record and the brevity of this speleothem record ( approximately 800 years), direct comparison of the two sequences is difficult. The interval preserved by this speleothem may span the inter-Allerod cold period (IACP) alone, both the IACP and the start of the Younger Dryas, or only the first half of the Younger Dryas. In any case, these data demonstrate that the climate of the North American interior deteriorated significantly and rapidly during the interval associated with the Allerod-Younger Dryas transition. Abstract Copyright (2001) Elsevier, B.V.
Details
- Title: Subtitle
- A high-resolution speleothem record of climatic variability at the Allerod-Younger Dryas transition in Missouri, central United States
- Creators
- R. F Denniston - Cornell CollegeL. A Gonzalez - University of IowaY Asmerom - University of New MexicoV Polyak - University of New MexicoM. K Reagan - University of IowaM. R Saltzman - The Ohio State University
- Resource Type
- Journal article
- Publication Details
- Palaeogeography, palaeoclimatology, palaeoecology, Vol.176(1-4), pp.147-155
- Publisher
- Elsevier
- DOI
- 10.1016/S0031-0182(01)00334-0
- ISSN
- 0031-0182
- eISSN
- 1872-616X
- Language
- English
- Date published
- 12/25/2001
- Academic Unit
- Earth and Environmental Sciences
- Record Identifier
- 9984229176602771
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