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Figure 9. Generalized geologic map of the north-central Virginia Blue Ridge illustrating the location of major Paleozoic high-strain zones, including (from south to north) RVHSZ, Rockfish Valley high-strain zone; WOHSZ, White Oak high-strain zone; GRHSZ, Garth Run high-strain zone; QRHSZ, Quaker Run high-strain zone; CVHSZ, Champlain Valley high-strain zone; and SHSZ, Sperryville high-strain zone. Geology based, in part, on Virginia Division of Mineral Resources (1993); high-strain zones based on 1:24,000- and 1:100,000-scale mapping by authors. |