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Cutting Description
<br />Drill Hole 21011-1
<br />Page 6 of 13
<br />From 7b •
<br />500' 510` Sandstone, fine grained, grayish brown, well sorted,
<br />good cementation; carbonaceous fragments.
<br />510' 520' Sandstone-siltstone, fine grained, light gray to gray,
<br />well sorted, heavy minerals.
<br />520' 540' Sandstone, fine grained, white to gray, well sorted,
<br />heavy minerals, sugary texture; carbonaceous layers
<br />and lenses, interbedded.
<br />540' 545' Sandstone-siltstone, fine grained, light gray to
<br />gray, well sorted, heavy minerals, mica flakes, sugary
<br />texture.
<br />545' 550' siltstone, grayish brown, mica flakes; carbonaceous
<br /> fragments.
<br />550' 555' siltstone-sandstone, fine grained, grayish brown to
<br /> gray, well cemented sandstone (very hard).
<br />555' 560' Sandstone-siltstone, very fine grained, light gray to
<br /> gray, well sorted, mica flakes.
<br />560' 565' siltstone-shale, grayish brown to brownish black;
<br /> •
<br />carbonaceous fragments; carbonaceous lenses in shale.
<br />565' 570' Sandstone-siltstone, very fine grained, whitish gray
<br /> to gray, good cementation (hard), mica flakes.
<br />570' 575' siltstone, gray, mica flakes; carbonaceous fragments.
<br /> tOrigin of mica?)
<br />575' 580' siltstone-sandstone, very fine grained, grayish brown
<br /> to light gray, well cemented (hard)., mica flakes.
<br />580' 595' Silts tone, grayish brown; carbonaceous fragments.
<br />595' 600' siltstone, grayish brown.
<br />600' 605' siltstone, grayish brown, hard; few carbonaceous frag-
<br /> ments.
<br />605' 610' Silts tone, grayish brown; carbonaceous fragments.
<br />610' 615' Silts tone, grayish brown; few shale fragments, carbona-
<br /> ceous, gray.
<br />615' 620' Sandstone-siltstone, fine grained, gray, good cementa-
<br />tion (very hard), like a quartzite.
<br />620' 625' Silts tone, gray; carbonaceous fragments. •
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