Holston Formation

From Wikipedia, the free encyclopedia

The Holston Formation, alternately known as the Holston Limestone, is a stratigraphic unit of Ordovician age within the Chickamauga Group in the Ridge-and-Valley physiographic province of the southeastern United States. A 120-mile-long outcrop belt of the Holston in East Tennessee is the source of the decorative building stone known as Tennessee marble.

Near Knoxville the Holston Formation is about 400 feet thick but it thins toward the southwest; near Cleveland, Tennessee it is only 200 feet thick. The rock that is quarried for marble is a highly pure (97% CaCO3) crystalline limestone, pink to cedar-red in color.

  • Mineral Commodities, in Mineral Resources of the Appalachian Region, U.S. Geological Survey and U.S. Bureau of Mines, Geological Survey Professional Paper 580, 1968.
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