A Resource for Information on the Commonwealth's Geology
Finding bedrock outcrop in the Piedmont of Southside Virginia can be challenging. Much of the terrain is covered by soil and saprolite, and geologists interested in this region must search high and low for outcrop. The image above illustrates a ‘good’ natural outcrop in the Piedmont, likely the result of a relatively resistant rock that […]
Yorktown became a famous locale in 1781 after the surrender of the British troops which effectively ended the Revolutionary War. British forces in and around Yorktown dug a number of defensive earthworks that were sieged by American and French troops over a three-week period prior to the surrender on October 19th, 1781. In the early 21st […]
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 […]