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Cutting Description
<br />Drill Hole 21012-12
<br />Page 4 of 8
<br />From
<br />280'
<br />285'
<br />290'
<br />295'
<br />300'
<br />305'
<br />310'
<br />315'
<br />320'
<br />325'
<br />330'
<br />335'
<br />350'
<br />355'
<br />360'
<br />370`
<br />To
<br />'
<br />285 Siltstone, gray; sandstone, fine grained, light gray;
<br /> shale, carbonaceous, black, with coal fragments.
<br />290' Siltstone, gray; sandstone, fine grained, light gray;
<br /> siltstone, slightly carbona ceous, dark gray to brown.
<br />295' Siltstone, gray; siltstone, dark gray, soft; siltstone,
<br /> carbonaceous, dark gray to black; coal, slightly
<br /> shaley.
<br />300' Shale, carbonaceous, black, coaly; siltstone, dark gray.
<br />305' Siltstone, gray; sandstone, fine grained, light gray;
<br />sandstone, very fine grained, gray, well cemented
<br />(hard).
<br />310' Siltstone, gray, gritty; sandstone, fine grained, light
<br />gray; sandstone, very fine grained, gray, well cemented
<br />(hard).
<br />315' Sandstone, very fine grained, light gray, with silt-
<br />stone, gray, gritty, interbedded; siltstone fragments,
<br />dark gray.
<br />320' Sandstone, very fine grained, light gray, with silt- •
<br />stone, gray, gritty, interbedded; mudstone fragments,
<br />oran~e brown, hard.
<br />**** **LOWER WILLIAMS FORK FORMATION*******
<br />325' Sandstone, very fine grained, light gray; siltstone,
<br />gray, gritty, interbedded; coat fragments,
<br />330' Siltstone, carbonaceous, dark gray; coal; sandstone,
<br />very fine grained, light gray.
<br />335' Sandstone, finegrained, light gray; siltstone, gray,
<br />interbedded.
<br />350' Sandstone, fine grained, light gray; thin siltstone
<br />layers, gray, interbedded.
<br />355' Sandstone (more than above), fine grained, light gray;
<br />thin siltstone layers, gray, interbedded.
<br />360' Siltstone, carbonaceous, black; coal fragments.
<br />370' Siltstone, gray; siltstone, dark gray; sandstone,
<br />fine grained, light gray.
<br />375` Sandstone, fine grained, light gray; siltstone, gray;
<br />siltstone, gray, very hard.
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