Somerville granite. Typically developed near Somerville, Fauquier County, northeastern Virginia. Is coarse-grained biotite-muscovite granite, massive, pegmatitic, of Precambrian or Cambrian age, and closely related to Locust Grove granite.
Source: US geologic names lexicon (USGS Bull. 896, p. 2026).
Jonas, A.I., 1928, Geological map of Virginia; preliminary edition: Virginia Geological Survey
Somerville granite. Mapped the granite at and around Somerville, Fauquier County, northeastern Virginia, as Precambrian and as intrusive into Glenarm series (Algonkian?).
Source: US geologic names lexicon (USGS Bull. 896, p. 2026).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
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