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Thesis (M.S.)--University of Nebraska--Lincoln, 1949. Department of Agronomy.


The purpose of this study is to initiate an investigation of the distribution of heavy minerals in Nebraska soils using the techniques of Marshall and Jefferies. Only one soil, Scott silt loam, was selected since it was expected that the Scott profile would show the maximum development of the soils previously studied in Nebraska. The investigation was made into the distribution of heavy minerals in very fine sand (0.1 to 0.05 mm.) and coarse silt (0.05 to 0.02 mm.) separates of Scott silt loam. In the entire profile there was a 12.8 per cent increase in depth, an 11.4 per cent increase in total weight of soil, a 14.6 per cent increase in 2-micron clay, and a 30.5 per cent loss in green hornblende content.