Abstract
Two profiles from adjacent Indian mound excavations near Reelfoot Lake in Obion County, Tennessee were studied for evidence of soil horizon development. The objective of this study was to evaluate physical, chemical, and morphological differences between the mounds and an undisturbed soil to determine the degree of soil formation in the mounds. Data from the two mounds were compared to an undisturbed profile near the archaeological site. The archaeological site dated from the Mississippian Period with carbon dates ranging from 930 to 1,100 A.D. Only a minimum degree of horizonation (Bw) was shown in mounds 1 and 2. Fine silt/total silt ratios were plotted to establish various depositions during construction of the mounds. Organic C distribution regularly decreased with depth in the upper 30 in. (75 cm) of all three profiles that showed organic C stabilization in the mounds after approximately 1,000 yr.
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