Scientific editing by Lucy Wilson and Howard Cyr
Paleoindian Open-Air Sites in Tropical Settings: A Case Study in Formation Processes, Dating Methods, and Paleoenvironmental Models in Central Brazil
Version of Record online: 10 APR 2013
Copyright © 2013 Wiley Periodicals, Inc.
Special Issue: Multi-Scalar Approaches to Geoarchaeological Questions: Papers from the 5th Developing International Geoarchaeology Conference
Volume 28, Issue 3, pages 195–220, May/June 2013
How to Cite
Araujo, A. G.M., Strauss, A. M., Feathers, J. K., Paisani, J. C. and Schrage, T. J. (2013), Paleoindian Open-Air Sites in Tropical Settings: A Case Study in Formation Processes, Dating Methods, and Paleoenvironmental Models in Central Brazil. Geoarchaeology, 28: 195–220. doi: 10.1002/gea.21442
- Issue online: 10 APR 2013
- Version of Record online: 10 APR 2013
- Manuscript Accepted: 13 DEC 2012
- Manuscript Received: 4 MAR 2012
Paleoindian sites in eastern South America are generally found inside rock-shelters. Recently, we designed a program to find open-air Paleoindian sites in the Lagoa Santa region of Brazil. Here, we present data gathered at Sumidouro site, a multicomponent site with a Paleoindian horizon, detected on a shoreline slope of Sumidouro Lake, Minas Gerais State. We present a model for late Pleistocene/Holocene slope evolution that suggests at least three different episodes of instability (erosion/sedimentation) followed by periods of stability (pedogenesis). Higher soil accretion rates during the Mid-Holocene are probably not linked to a stable dry climate, but to greater climatic instability. We also found that the position of both archaeological materials and charcoal can be explained by burial of ancient surfaces and are not the result of downslope movement. The role of bioturbation in the vertical displacement of such materials is much less important than previously acknowledged.