. Jefferson, Berkeley, and Morgan counties, by Grimsley, assistant geologist. White, state geologist. PLATE XXII(A).—Contact of Lower and Middle Stones River Limestones atPittsburgh Limestone Company Quarries on PLATE XXII(B).—Cobbly Weathering of the Chambersburg Limestone 1V2Miles Southeast of Bedington. WEST VIRGINIA GEOLOGICAL SURVEY. 337 above the floor of the mill. In parts of the quarry, red clayseams occur along the joint-planes which are one to five feetapart. The stone is worked under the ledges and then shotdown in large masses. There are boulders of hard flintys
. Jefferson, Berkeley, and Morgan counties, by Grimsley, assistant geologist. White, state geologist. PLATE XXII(A).—Contact of Lower and Middle Stones River Limestones atPittsburgh Limestone Company Quarries on PLATE XXII(B).—Cobbly Weathering of the Chambersburg Limestone 1V2Miles Southeast of Bedington. WEST VIRGINIA GEOLOGICAL SURVEY. 337 above the floor of the mill. In parts of the quarry, red clayseams occur along the joint-planes which are one to five feetapart. The stone is worked under the ledges and then shotdown in large masses. There are boulders of hard flintysandstone through the main rock which are rejected. Pittsburgh Plant.—The Pittsburgh plant of the samecompany is located three-fourths mile south of the West Vir-ginia plant. It is equipped with Blake crusher and has twomills, one with five and the other with six washing sand is dried in a Cummer drier, 24 feet long and six feetin diameter. The glass-sand is stored in two vertical roundsteel tanks resting on concrete foundations, and hold 25 car-loads or 300 tons. The daily capacity of the three plants .is400 tons of sand. Quarry.—The quarry which supplies the Pittsburgh plantwas opened in the fall of 190
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectgeology, bookyear1916
