Fig. 1. Layer of tailings covering the soils as result of the toxic spill and detail of the reddish-yellow layer (ryl) at the contact point between the tailings and soil (thickness of the reddish-yellow layer was 4 mm).
Fig. 1. Layer of tailings covering the soils as result of the toxic spill and detail of the reddish-yellow layer (ryl) at the contact point between the tailings and soil (thickness of the reddish-yellow layer was 4 mm).