Climate and Vegetation History of the Midcontinent from 75 to 25 ka: A Speleothem Record from Crevice Cave, Missouri, USA
- 4 December 1998
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 282 (5395) , 1871-1874
- https://doi.org/10.1126/science.282.5395.1871
Abstract
Four Missouri stalagmites yield consistent overlapping records of oxygen and carbon isotopic changes and provide a climate and vegetation history with submillennial resolution from 75 to 25 thousand years ago (ka). The thorium-230–dated records reveal that between 75 and 55 ka, the midcontinental climate oscillated on millennial time scales between cold and warm, and vegetation alternated among forest, savanna, and prairie. Temperatures were highest and prairie vegetation peaked between 59 and 55 ka. Climate cooled and forest replaced grassland at 55 ka, when global ice sheets began to build during the early part of Marine Oxygen Isotope Stage 3.Keywords
This publication has 17 references indexed in Scilit:
- The isotopic geochemistry of speleothems—I. The calculation of the effects of different modes of formation on the isotopic composition of speleothems and their applicability as palaeoclimatic indicatorsPublished by Elsevier ,2003
- Evidence at Lomax, Illinois, for Mid-Wisconsin (∼40,000 yr B.P.) Position of the Des Moines Lobe and for Diversion of the Mississippi River by the Lake Michigan Lobe (20,350 yr B.P.)Quaternary Research, 1998
- Elevated and variable values of 13C in speleothems in a British cave systemChemical Geology, 1997
- Holocene Paleoenvironments of Northeast IowaEcological Monographs, 1996
- AMS Radiocarbon Age of the Upper Mississippi Valley Roxana SiltQuaternary Research, 1993
- Chronologic evidence for multiple periods of loess deposition during the Late Pleistocene in the Missouri and Mississippi River Valley, United States: Implications for the activity of the Laurentide ice sheetPalaeogeography, Palaeoclimatology, Palaeoecology, 1992
- Source and Origin of Roxana Silt and Middle Wisconsinan Midcontinent Glacial ActivityQuaternary Research, 1989
- Age Dating and the Orbital Theory of the Ice Ages: Development of a High-Resolution 0 to 300,000-Year ChronostratigraphyQuaternary Research, 1987
- 238U234U230Th232Th systematics and the precise measurement of time over the past 500,000 yearsEarth and Planetary Science Letters, 1987
- Sedimentology and Palynology of Middle Wisconsinan Deposits in the Pecatonica River Valley, Wisconsin and IllinoisQuaternary Research, 1982