Serpentinite and Rodingite in the Hunting Hill Quarry, Montgomery County, Maryland: Description of Rocks Exposed in the Quarry Near the Center of the Hunting Hill Ultramafite (Classic Reprint) - Tapa blanda

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Excerpt from Serpentinite and Rodingite in the Hunting Hill Quarry, Montgomery County, Maryland: Description of Rocks Exposed in the Quarry Near the Center of the Hunting Hill Ultramafite

The Hunting Hill serpentinite quarry is 4 miles west of Rockville, Montgomery County, about 17 miles N. 41° W. Of the Capitol in Washington, D.C. By road, the quarry is miles southwest of Maryland Route 28 at its junction with Travilah Road and mile west of Piney Meetinghouse Road, south of its junction with Travilah Road (fig. The quarry is near the center of a serpentinite mass 4 miles long and 1 mile wide, which trends N. 22° E. And is named for the settlement of Hunting Hill near its northeast end. The serpentinite is surrounded by the Wissahickon Formation, the foliation of which generally strikes about N. 20° E. And dip-s steeply to vertically (pl.

The quarry was opened in 1955 after a modest core-drilling pro gram by Rockville Crushed Stone, Inc., and when mapped in 1966 it had a maximum length of feet, an average width of 850 feet, and a maximum depth of approximately 210 feet (pl. The quarry originally was developed and operated in benches on all sides; recent work, however, has been by benching in a southwesterly direction only (fig.

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