Journal article
Episodes of late Holocene aridity recorded by stalagmites from Devil's Icebox Cave, central Missouri, USA
Quaternary research, Vol.68(1), pp.45-52
2007
DOI: 10.1016/j.yqres.2007.04.001
Abstract
Two stalagmites from Devil's Icebox Cave, central Missouri, display similar δ
13C and δ
18O values and trends during the late Holocene. Positive δ
13C excursions at 3.5–2.6 ka and 1.2–0.9 ka are interpreted to reflect drier conditions. These elevated stalagmite δ
13C values could have plausibly been driven by increasing C
4 plant abundances over the cave or an increased contribution of bedrock carbon, both of which could reflect decreased effective moisture. A lack of corresponding oxygen isotopic anomalies during these intervals suggests that neither mean annual temperature nor the seasonality of precipitation changed concomitantly with dryness. Both of the δ
13C excursions identified in our stalagmite record are roughly coincident with dry intervals from a number of sites located across the Great Plains.
Details
- Title: Subtitle
- Episodes of late Holocene aridity recorded by stalagmites from Devil's Icebox Cave, central Missouri, USA
- Creators
- Rhawn F Denniston - Cornell CollegeMichelle DuPree - Cornell CollegeJeffrey A Dorale - University of IowaYemane Asmerom - University of New MexicoVictor J Polyak - University of New MexicoScott J Carpenter - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Quaternary research, Vol.68(1), pp.45-52
- Publisher
- Elsevier Inc
- DOI
- 10.1016/j.yqres.2007.04.001
- ISSN
- 0033-5894
- eISSN
- 1096-0287
- Language
- English
- Date published
- 2007
- Academic Unit
- Earth and Environmental Sciences
- Record Identifier
- 9984229176302771
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