Laserfiche WebLink
., <br />EXHIBIT D(Cont'd) <br />of brick and tile. Contains fossil leaves, wood, and other <br />I plant remains." <br />The Laramie Formation varies in thickness and consists <br />of several coal and claystone layers occurring between the <br />I presently unuseable sandstone layers. Small amounts of these <br />sandstone layers will not harm the clay characteristics, so <br />I the smaller veins will sometimes be blended into the clay. <br />I The Fox Hills Sandstone (Upper Cretaceous age) lies below the <br />Laramie Formation. The Arapahoe Formation (also Upper <br />I Cretaceous age) occurs above the Laramie Formation. <br />SJest <br />I surface coal beds <br />S clays on beds East <br />~... ~. ~. :~. ::. urface <br />~•-FOX HILLS '..;.. `,.'•:. L' AMI.... ~ •T ,~; -~.'.:"::.':'ARP,PAHO~E• •::~ <br />SANDSTONE ;. '.'.'~ .': ;:. <br />- `':~-:,';: •:: FORMAT ION ~,::. <br />,sandstone J~~sandsto ej <br />SKETCH OF STEEPLY-DIPPING CLAYSTONE <br />BEDS IN THE LARAMIE FORMATION <br />The clays to be mined lie in veins that dip 70 to 80 degrees <br />to the east, interbedded with sand. Approximately 40 percent <br />of the area to be mined is expected to be waste sand. <br />Soil and Overburden. The exploration drill hole program <br />I encountered soils and overburden described as varying from <br />one to five feet of soil and one and one-half feet to twenty- <br />I two feet of overburden. The averages were two feet and eight <br />feet respectively. The detailed soils report in Exhibit I, <br />I prepared by Mark Heffner of Oikos Environmental Services, <br />I shows six distinguishable soil map units. (See Exhibit I for <br />details concerning soils.) <br />I ~ <br />