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SEGSA2015 100%

Soil Chemistry Two Centuries after Mining An Analysis of Residual Cation Distribution in Subsoil from a Historic Tennessee Iron Operation Tyler Schlemm, 2015, Austin Peay State University, Department of Geosciences Introduction Procedures Prior to regulations set forth by Congress and the EPA in the mid-twentieth century, businesses and mining operations which produced potentially hazardous byproducts were unrestrained in their disposal of waste.


main 60%


Spanish 51%

subsuelo (subsoil), subyacer (to underlie), subsector (subsection) o super- (superior):


Spanish 37%

subsuelo (subsoil), subyacer (to underlie), subsector (subsection) o super- (superior):


w E 18860200 14%

But in the day of conflict, fear and grief, When the strong hand of God puts forth in might, Ploughs up the subsoil of the stagnant heart, And brings the imprisoned truth seed to the light.