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/ ~ <br /> <br />~. <br />FIGURE 3. ROCK TYPE LOCATIONS <br />PHYSICAL PROPERTIES TESTS <br />OOF SILTSTONE <br />~OOF SANDSTONE f5 <br />RTOOF SANDSTONE t4 <br />T <br />~OOF SANDSTONE f3 <br />1 <br />~OOF SANDSTONE f2 <br />OOF SANDSTONE f 1 <br />IMMEDIATE ROOF <br />-TOP COAL <br />AIN COAL <br />SILTSTONE <br />FLOOR SANDSTONE <br />VERTICAL SCALE: 1 in = 10 ft <br />