. Jefferson, Berkeley, and Morgan counties, by Grimsley, assistant geologist. White, state geologist. less. No indication of the coalwas seen anywhere in this area, though it may be covered byweathered products and the sandstone debris. Stose measured a section four miles further north of theWhites Gap road where he found a thickness of 500 feet: Section of Rockwell Formation, West Slope of Sleepy Creek Mountain (Stose). , soft, arkosic sandstone at crest of 100±Poorly exposed, buff, sandy shale and sandstone,with some red shale and sandstone near the top 370± Con
. Jefferson, Berkeley, and Morgan counties, by Grimsley, assistant geologist. White, state geologist. less. No indication of the coalwas seen anywhere in this area, though it may be covered byweathered products and the sandstone debris. Stose measured a section four miles further north of theWhites Gap road where he found a thickness of 500 feet: Section of Rockwell Formation, West Slope of Sleepy Creek Mountain (Stose). , soft, arkosic sandstone at crest of 100±Poorly exposed, buff, sandy shale and sandstone,with some red shale and sandstone near the top 370± Conglomerate containing quartz and a few jasper pebbles, and gray arkose 30 B00± ( >l TCROPS.—The Rockwell Formation outcrops in longnarrow belts on each upper slope of Purslane-Sideling HillMountain, with a width of 500 to 2,000 feet, and forms the endoi the mountain al the north where the Potomac has cutthrough. A small outcrop is found southeast of Pawpaw onSpring (rap Mountain. Mi Rockwell Formation outcrops on the upper westernslope i Sleepy ( reek Mountain and on the upper eastern slope. WEST VIRGINIA GEOLOGICAL SURVEY. I45 of Third Hill Mountain in long narrow belts similar to thosear the west. It bends around the north ends of these twomountains up into the Meadow Branch Valley as far as theDevils Nose. The thickness varies in the whole area from 440to 715 feet, with an average thickness of about 600 feet. The upper limit of the formation is placed at the base ofthe white sandstone and conglomerate ledges of the overlyingPurslane, but the lower limit is often difficult to locate. Inthe Sideling Hill area, there is in many places a conglomeratebuff sandstone near the base which is taken for the basal mem-ber, but in the Meadow Branch area this conglomerate is butrarely seen and the formation grades into the underlyingCatskill. The base is then assumed to be at the lower limit ofthe buff coarse-grained sandstone ledges and above the dis-tinctly red Catskill Shales an
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectgeology, bookyear1916
