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<br />Hole 873E, Continued <br />Depth Increment Description of Strata " <br />(feet) <br />16.0-23.6 COAL, lower Dakota seam, light gray shale partings <br />at 16.6-16.9; 18.0-18.1 and 18.15-18.20, high <br />powdery yellow sulfur content (Jarosite) frcm <br />16.0-16.6 <br />23.6-24.G <br />24.6-27.0 <br />27.0-28.1 <br />• 28.1-29.0 <br />29.0-29.6 <br />29.6 <br />31.0 <br />SHALE, gray, slightly hard to hard, fractures occur <br />at 0.1-0.2 foot intervals, very dark gray <br />carbonaceous shale at 23.6-23.7, NE <br />SANDSTONE, light gray, extremely hard, indurated, <br />fractures occur at 0.5 foot intervals, 3 percent <br />black organic lamella at 25.5-27.0, NE <br />SHALE, gray, slightly hard to hard, fractures occur <br />at 0.2 foot intervals, NE <br />SHALE, very dark gray to black, slightly hard to <br />hard, carbonaceous, few 0.01 foot thick coal <br />streaks, NE <br />SANDSTONE, tight brown grading to light gray, <br />extremely hard, clear to white gypsum streak at <br />29.23-29:<<^7, NE <br />TOTAL SAMPLE DEPTH <br />TOTAL DRILL NOLE DEPTH <br />Notes: 2) Cuttings were collected from 0.0 to 14,0 <br />feet, 5} inch diameter hole <br />'L) A 3 inch diameter core was collected from 14.0 to <br />29.6 feet, 4 7/8 inch diameter hale <br />3) A 2 inch PVC casing was installed to 31.0 feet, <br />slotted at 26.0-31.0 feet, packer at 5.0 feet ' <br />4) Dry hole <br />is <br />6-i -51" <br />• <br />Revised 11/01/86 <br />REVISED MAACH 2006 Attachment 2.04.6-1-52 <br />