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Generalized Straticraphic-Column Sec 2S T3N R69W <br />• <br />Undifferentiated l:olien sends - V. fine to medium <br />grained buff to brown with yellow-orange arkosic <br />unconsolidated sands in upper zone. Grades to <br />-silty clayey sands at base. Weathered and <br />locally saturated. <br />Clay, yellow brown-grey moderately weathered, <br />occasional silty sandy layers resistant siltstone <br />- sandstone concreations <br />Clay, grey, "blue" with yellow cloy clasts. <br />Gypsumniferous clay shales with intermediate <br />resistant siltstone layers (2" to 4" thick). <br />Ground water production limited and isolated. <br />Observed discharge rates <lgpm. Resistant <br />Sandstone - siltstone concreations. <br /> <br /> <br /> %: ~:i~. <br /> <br />• `' ~. <br />~ .;~;: <br />W -~;;:> <br />J ;,»`- <br />W ~~ •`,, <br /> \\, :` <br /> .~.. <br />c=. <br /> : <br />450 :: <br /> • :[; <br /> <br />•.~ <br />Coal, hard, dark brown to block. Poor <br />development, semi concoidel fracture, <br />when dry, celiche end minor pyrite in <br />Gray clay clasts upper 1 ft. <br />Resinous-lignitic. H2S gas production <br />saturated coal near edge of deposits. <br />cleat <br />friable <br />points. <br />from <br />Clay, gray, dark grey with minor very fine <br />grained well sorted gray sands, within 2 ft. <br />below coal. Thin layers of coal.and black, <br />friable shales thinly interbedded. Occasional <br />thin sandstone and siltsone beds. <br />Sandstone, grey-buf£ with occasional soft <br />carbonaceous shale. <br />Sandstone, yellow brown calcareous interbedded <br />dark gray sandy shale with massive white <br />sandstone. Gradational contact with underlying <br />Pierre shales. (Fox Hills Formation). <br />Shale, dark grey black, aerine <Pierre~Shale). <br />-44- <br />