Geomorphic Evaluation of Fort Leonard Wood.
ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS GEOTECHNICAL LAB
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Soil-geomorphic studies at Fort Leonard Wood, Missouri, provide a Holocene landscape evolution model to predict the potential for archeological sites on the military installation. Results of this research allow for more effective and efficient cultural resource management. The focus of the investigation was on alluvial areas where archeological sites are believed to be buried. The valley bottoms of the Big Piney River and Roubidoux Creek were differentiated at a scale of 112,000 into seven soil geomorphic or allostratigraphic units T1 through T7. The tributaries were divided into two allostratigraphic units TR 1 and TR 2. Alluvial fans, colluvial wedges, and strata terraces were recognized. Each allo-unit was discerned based on geomorphic position, lithologic composition, pedological development, and available age dates. A series of radiocarbon analyses provided chronological control from 215 to 4,630 years, before present BP. Age estimates for T6 and T7, derived from regional correlation, suggest these older units are Pleistocene in age. T1 has no potential for prehistoric artifacts in context. T2, with age dates ranging from 200 to 1,400 years BP, has the potential for Late Woodland sites. T3, deposited between 2,000 to 3,000 years BP, may contain buried Middle Woodland sites or younger sites on the surface. T4, with age dates ranging from 3,000 to 4,000 years BP, may contain Early Woodland and terminal Archaic sites.
- Humanities and History
- Geology, Geochemistry and Mineralogy