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Hokie Stone is a grey dolomite—limestone rock found near Blacksburg, in western Virginia. It gets its name from the traditional nickname attributed to students and alumni of Virginia Tech. Hokie Stone is quarried by Virginia Tech for campus projects and is prominently displayed on the majority of buildings throughout the Blacksburg campus.
The oldest rocks in the state were metamorphosed during the Grenville orogeny, a mountain-building event beginning 1.2 billion years ago in the Proterozoic, which obscured older rocks. Throughout the Proterozoic and Paleozoic , Virginia experienced igneous intrusions, carbonate and sandstone deposition, and a series of other mountain-building ...
Metamorphic rocks arise from the transformation of existing rock to new types of rock in a process called metamorphism. The original rock ( protolith ) is subjected to temperatures greater than 150 to 200 °C (300 to 400 °F) and, often, elevated pressure of 100 megapascals (1,000 bar ) or more, causing profound physical or chemical changes.
It also occurs in Virginia where it is found in the river valleys after having been washed down from the Blue Ridge Mountains. First found in the United States, unakite has a worldwide distribution, having also been reported in South Africa , Sierra Leone , Brazil , China , India and Australia .
The Ashe Metamorphic Suite, also referred to as the Ashe Formation, was named after its type locality, Ashe County, North Carolina. [1] The Ashe Metamorphic Suite is located in the Eastern Blue Ridge providence that extends from North Carolina up to South-Western Virginia. It is a collection of metamorphic rocks of both sedimentary and volcanic ...
Hornfels – Group of metamorphic rocks Calcflinta – A type of hornfels found in the Scottish Highlands; Litchfieldite – Nepheline syenite gneiss; Marble – Type of metamorphic rock – a metamorphosed limestone; Migmatite – Mixture of metamorphic rock and igneous rock; Mylonite – Metamorphic rock – A metamorphic rock formed by shearing
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The top of Chapman Mountain contains sedimentary rocks that belong to the Chilhowee Group, just below those rocks are 50–150 feet of volcanic slate that belongs to the Catoctin Formation. Large greenstone dikes can be found all through the formation particularly at the Big Meadows area where a 1,800-foot section of greenstone is exposed.