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M-2009-003 Cross Sections <br /> A A' <br /> —6060' <br /> ✓ —6030' <br /> o HIV<,, Iv���Lc' <br /> _ v L nL7�� v�v LI�J <�!4Lvn1;/I��N /1 —6000 <br /> P i L� l_ i. <br /> B B' <br /> 0 <br /> —6060' <br /> —6030' <br /> CJ7 L7�C,r1 L Lw�C(�LJ�—L —6000' <br /> 0 330 660 990 1,320 feet <br /> Vertical Exaggeration Sx <br /> `'` Overburden(Quaternary Colluvium and/or Sand) <br /> 1 Eocene Diabase(Basalt)Sill <br /> Cretaceous Pierre Shale <br /> Annotated from:Land,Environmental <br /> and Natural Resource Services,LLC <br /> Figure 2. Schematic Bradford Mesa Cross Sections. Cross Section orientations are shown on <br /> Map C-1. <br /> In general, each new mining phase will be mined by first excavating 0-12 inches of topsoil and <br /> underlying variably thick overburden with front-end loaders, excavators and bulldozers. <br /> Overburden is believed to range in thickness from 2 to 20 feet thick with an average of 6 feet <br /> across the site. Overburden consists of variable compositions of poorly graded fine grained sand <br /> located south of the dike with well graded sand, cobbles, boulders, and colluvium along the east <br /> Bradford Mesa Quarry . <br /> August 2019 D-4 <br />