Granites of the Southeastern Atlantic States (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1910 Excerpt: ... ROWAN GRANITE COMPANY'S QUARRY NO. 2, NEAR SALISBURY, ROWAN COUNTY, N. C. B. BOWLDER OUTCROP OF SYENITE SOUTHWEST OF CONCORD, CABARRUS COUNTY, N. C. for use to Washington, D. C., to the most important points in Virginia and North Carolina, and to a minor extent to several other States. These quarries were idle at the time of the writer's visit in July, 1908. The Balfour Quarry Company's quarries are located less than half a mile south of the Rowan Granite Company's quarries, about 5 miles N. 20 W. of Salisbury and 2 miles northeast of Faith. Two openings have been made near together, the smaller one of which is in light-gray granite of the same color, texture, and composition as that quarried by the Rowan Company described above. The principal opening, known as the Balfour pink quarry, is in a beautiful pink granite, in a ledge exposure having a slope of about 25. Practically no soil covers the granite except on the east side, where slight stripping is necessary before quarrying. On the southeast side of the opening the partly discolored granite extends for several feet from the surface downward; on the north side fresh granite begins practically at the surface. Oxidation resulting in a reddish discoloration of a thin outer layer of the rock is observed along the joint surfaces. Two sets of vertical joints strike N. 10 E. and N. 70 W. and are spaced sufficiently far apart to admit of quarrying stone of almost any size. The joint surfaces show slickensides. So far as quarrying operations have extended in depth, the rock appears to lie in sheets which vary in thickness from 2 to 10 feet, with a probable average of 8 feet. The rock contains both large and small knots of dark-gray color. The feldspar of the knots is of a pronounced pink color and in the larger...