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Trimble Knob, located southwest of Monterey in Highland County, Virginia, is a conical hill composed of basalt, a volcanic rock, of Eocene (early Tertiary) age.It is the eroded remnant of what was an active volcano or diatreme that last erupted approximately 35 million years ago, making it one of the youngest volcanos on the east coast of North America.
The basalt at Mole Hill (and other igneous dikes in the area) was originally thought to be of Paleozoic age by relative age dating using cross-cutting relationships. [1] In 1969, Fullagar and Bottino used K-Ar and Rb-Sr radiometric dating techniques to date rocks that they thought were temporally related to the Devonian Tioga Bentonite, but discovered that the rocks were actually a much ...
The volcano is composed of alkali feldspar granitic rock of the Robertson River Igneous Suite.This includes felsic complex material such as biotite, hornblende-biotite, magnetite, and alkali granitic rock including rhyolite on the eastern slopes of Battle Mountain [5] and the adjacent (and geologically related) Little Battle Mountain (elevation 937 feet).
Volcanoes of Virginia in the United States. Pages in category "Volcanoes of Virginia" The following 5 pages are in this category, out of 5 total.
US 52 at the West Virginia state line 1935: current US 58: 507.40: 816.58 US 58 TN 383 at the Tennessee state line: US 60 in Virginia Beach: 1932: current US 60: 302.69: 487.13 US 60 at the West Virginia state line: 5th Street in Virginia Beach: 1926: current US 117 — — — — 1926: 1933 Replaced by US 158: US 121 —
The Interstate Highways in Virginia are a total of 1,118 miles (1,799 km) of Interstate Highways in the U.S. state of Virginia. Virginia consists of six primary interstate highways, and 10 auxiliary interstates. In addition, 3 more primary and one auxiliary route are planned or under construction.
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You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.