The Geology of Virginia

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Oblique view of the Valley & Ridge

August 3, 2016 by Chuck Bailey ·
Oblique shaded relief maps (view to the north-northeast) of the Valley & Ridge province near Blacksburg, Virginia.
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Twenty years of change at Cedar Island

Cedar Island is one of Virginia’s barrier islands that separates the Eastern Shore from the Atlantic Ocean. Barrier islands are dynamic environments that respond quickly to environmental changes. Over time barrier islands move, and their shorelines migrate. During the past two decades shoreline change at the south end of Cedar Island has been dramatic. Compare the 1994 […]

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pluton contact

At the Pluton’s Edge

When large quantities of magma intrude and solidify in the Earth’s crust they form bodies of intrusive igneous rock known as plutons. The featured image nicely illustrates the edge (geologic contact) of a granitic pluton in the Blue Ridge Mountains of central Virginia. The granite is part of the 706 ± 4 million year old […]

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