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Research of geomorphology and flood history of the Red River floodplain and its relationship to the Battle Mound archaeological site are on-going. As a preliminary study, a set of four soil cores were taken in the Red River Basin that provide insights into the relative age, sediment deposition and sediment development in the Battle Mound vicinity (see McKinnon 2009).
Results show that the Battle Mound vicinity has a history of regular inundation and overbank deposition. Natural levee deposits are approximately 140 cm thick with varying soil matrix based on distance from current channel. Overbank deposits are fairly similar in soil matrix with 25% clay content and 35% silt content. Overbank deposits are approximately 100 cm thick, which corresponds nicely to archaeological evidence from the Battle Mound site (see Schambach et al. 1980). Point-bar deposits are mostly sand with younger point-bar deposits almost 100% sand. |
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