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<br /> <br />1 <br />1 <br />1 <br /> <br /> <br />LJ <br /> <br />1 <br /> <br /> <br /> <br /> <br />1 <br />1 <br />~rJyr,,/~T~« <br />S <br />IV. Overburden, interburden and underburden channel samples at Pit 4 were <br />collected on October 20, 1983. These samples were analyzed on November <br />21., 1983. Six samples were taken: an overburden, interburden and under- <br />burden at the north and south ends of the active highwall. Chemical <br />analyses are reported on the attached sheets. Pit 4 is referred to in <br />the chemical analyses as "Bruggan Pit". Physical observations are as <br />follows: <br />Overburden: 15' to 20' of mostly poorly indurated medium to fine <br />grained buff sandstone with dark gray clay-shale stringers. <br />Sandstones are in 1' to 2' massive featureless beds. <br />Overburden rests on a coal seam 35" to 40" thick. <br />Interburden: About 12' to 15' of interbedded fine grained sandstones <br />and caly-shale. Sandstone accounts for about 70~ of <br />the rock. Clay-shale accounts for the other 30%. <br />Interburden rests on another coal seam 35" to 40" thick. <br />Underburden: 18" exposures of a hard, dark gray, limey clay-shale. <br />Since Pits 7 & 8 will not mined under this permit term, no samples were <br />collected from these locations. <br />~' , d~ ~' l~ ~sekJ r <br />~v ~ o ~~ /~~ ~ ~ / ~ ~ ~ a ~ ~~~ <br />Z ,~~ ~ /G ~~, >r <br />S ~ ~~5 iGl1i~ -~ ~p <br />~rr j~N~~ ~~L~`"~s l ~~~nhz~~? <br />C ~ ~H ~-~-~(' C h(n~s(c Y. ~~ ~ ~ ~ ~c~t.s 1 <br />/ I / 11 \ J <br />p p <br />