Boscobel complex

Boscobel complex
Stratigraphic range: Paleozoic
Bottom of Luck Stone Quarry showing interfingering of gray gneiss and white leucogranite
Typemetamorphic and igneous
Lithology
Primarygranite
Othergneiss
Location
Region Virginia
CountryUS
Type section
Named forBoscabel Ferry
Named byShaler and Woodworth, 1899[1]

The Boscobel complex (originally "Boscabel bowlder beds") is unit of interlayered granite and gneiss within Goochland and Powhatan Counties, Virginia. The area had been mapped as the Petersburg Granite in 1970 by B. K. Goodwin.[2]

The complex is mapped in a single, fault-bound area (horst) approximately 9 km long. It lies on the west side of the Richmond Basin, a Mesozoic rift basin, and on the east margin of the Goochland Terrane, a section of the Piedmont of Virginia that is tectonically distinct from the surrounding rocks. It is quarried for aggregate at the Boscobel Plant of the Luck Stone Corporation, near Manakin.[3][4]

  1. ^ Cite error: The named reference SW1899 was invoked but never defined (see the help page).
  2. ^ Goodwin, B. K., 1970. Geology of the Hylas and Midlothian quadrangles, Virginia. Virginia Division of Mineral Resources, Report of Investigations 23. Map Scale: 1:24,000.
  3. ^ David B. Spears, Nick H. Evans, Patrick C. Finnerty, and Katherine E. Lang, 2022. The Goochland Terrane Revisited – Insights from Recent Mapping, Geophysics, and Geochronology. The 52nd Annual Virginia Geological Field Conference, November 11–12, 2022. (Fieldtrip guidebook)
  4. ^ Bartholomew, Mervin J.; Tollo, Richard P. (2004). "Northern ancestry for the Goochland terrane as a displaced fragment of Laurentia". Geology. 32 (8): 669. Bibcode:2004Geo....32..669B. doi:10.1130/g20520.1.