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M-2009-003 Cross Sections <br /> A A' <br /> —6060' <br /> — 6030' <br /> U L n17�V<V�LUn��7�J�<v1�L�1!�'7 �I''<a�� — 6000' <br /> >�L( 7li. A> L <br /> V�4� <br /> B B' <br /> o . <br /> — 6060' <br /> — 6030' <br /> �w^���� .v, ;hL��L�VS <br /> nJ7VLr7nVAJ\4k r1 j <br /> 0 330 660 990 1,320 feet <br /> I I I 1 I <br /> Vertical Exaggeration 5x <br /> Li Overburden(Quaternary Colluvium and/or Sand) <br /> AEocene 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 Greg I. ic%i and As iate%PLU' <br /> August 2019 D-4 <br />