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Ii , <br />C Description of Backhoe Pits- Maxwell Mine <br /> Pit Date Depth Description <br /> Al 6-19-80 0-4.4' Topsoil, reddish brown. <br />J 4.4-6.0' Alluvium, reddish brown, sand, si'It, gravel <br /> and cobbles, prominent caliche. <br /> 6.0-13.0' Alluvium, reddish brown, sand, si'It, gravel, <br /> cobbles and boulders up to ZO". No bedrock. <br /> AZ 6-19-SO 0-1.0' Topsoil, reddish brown. <br /> 1.0-9.5' Alluvium, reddish brown sand, silt:, gravel, <br /> cobbles and boulders up to 24". Imbricated <br /> pebbles. <br /> 9.5' Bedrock, dark gray carbonaceous shale. <br />l Dl 6-19-80 0-2.5' Top50i1, reddish brown. <br />J 2.5-4.6' Alluvium, reddish brown sand, silt, gravel <br /> cobbles and boulders up to 14". Some caliche. <br /> 4.6' Bedrock, dark gray to black carbonaceous shale. <br /> , <br /> D2 6-19-80 0-1.5' I Topsoil, reddish brown. <br /> 1.5-9.5' Alluvium, reddish brown sand, silt gravel <br />J and cobbles. No bedrock. <br /> D3 6-19-80 0-1.5' To soil, dark brown. <br /> 1.5-4.4' Alluvium, reddish brown, sand, silt, gravel <br /> and cobbles. Some caliche. <br /> 4.4' Bedrock, tan sandstone and gray shale. <br />I~ E1 6-20-80 0-2.0' ~ Topsoil, dark brown, silty. <br /> 2.0-i. 3' Alluvium, tan to medium brown, sancl, silt <br />Ij and gravel. <br /> 1.3' Bedrock, tan sandstone and gray-brown shale. <br /> E2 6-20-80 0-2.0' Topsoil, dark brown. <br /> 2.0-5.5' Alluvium, light gray to tan sand, silt and <br /> gravel. Hater table at approximately 4.0'. <br />' No bedrock. <br />I~ <br />i' <br />i~ <br />! . <br />'I , <br />