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• Coarse- to very-coarse grained (500-1410 m) <br />55-60' 45% yellowish brown clay <br />40% brownish arkosic sandstone medium- to very coarse-grained (300- <br /><1410 µm) <br />10% other, whitish clay <br />5% muscovite, coal <br />60-65' 85% dark gray clay (pebble-sized lumps) <br />10% dark yellowish brown clay <br />5%arkosic sandstone <br />65-70' 95% dark gray to light gray clay (40% areni[ic/sandy), raze arkose (1-5%), <br />pebble-sized <br />70-75' 85% dark gray dry clay (pebble-sized clumps) <br />10% arenitic (sandy clay coating) <br />5% minor reddish-brown clay <br />75-80' 85% dark gray, dry, lumpy (pebble-sized) clay <br />10% arenitic clay, gray coating <br />5% brownish yellow clay w/ black clay-like seams <br />• 80-85' 70% light gray arkosic sandstone, rounded quartz pieces, coarse grained <br />20% whitish tuff-like material - or pale green shale w/ muscotive <br />l0% other, some biotite and muscovite, fine- to coarse-grained <br />85-90' 80% arkosic sandstone, light gray, very coarse-grained <br />20% greenish gray shalely clay, angular to sub rounded <br />90-95' 70% dark gray clayey shale w/ some black, lumpy, tabular <br />20% yellowish brown arenitc clay <br />10% whitish green shale -arkosic, little quartz <br />95-100' 70% gray arkosic sandstone, very coarse-grained <br />30% dark gray-black clayey, small pebble-sized, tabular <br />100-105' S0% gray arkosic sandstone <br />35% light to medium gray clay <br />15% Black lignitic shale <br />105-1 10' 35% gray arkosic sandstone <br />35% black lignitic shale <br />30% light gray clay <br />110-1 l5' 75%arkosic sandstone, mostly quartz, coarser than above <br />