Interlayered Mafic and Felsic Volcanic Rocks

Layered mafic to felsic metavolcanic rocks. Volcanogenic sequence includes felsic pyroclastic and volcaniclastic rocks with intercalated mafic pyroclastic and amygdaloidal flows and phyllitic metasedimentary interbeds. Felsic rocks are crystal, lithic, and vitric tuff and tuff breccia ranging in composition from rhyolite to dacite. Mafic rocks consist of mafic lithic crystal and vitric tuff, with associated amygdaloidal pyroclastic rocks, and greenstone metabasalt.
State Virginia
Name Interlayered Mafic and Felsic Volcanic Rocks
Geologic age Proterozoic Z
Lithologic constituents
Major
Metamorphic > Metaigneous > Metavolcanicfelsic and mafic metavolcanic rocks
Minor
Metamorphic > Metasedimentaryphyllitic metsedimentary interbeds
Comments Carolina Slate Belt
References

Virginia Division of Mineral Resources, 1993, Geologic Map of Virginia: Virginia Division of Mineral Resources, scale 1:500,000.

Virginia Division of Mineral Resources, 2003, Digital Representation of the 1993 Geologic Map of Virginia, Publication 174, CD ROM (ISO-9660) contains image file, expanded explanation in pdf, and ESRI shapefiles, scale 1:500,000.

NGMDB product
Counties Lunenburg - Mecklenburg - Nottoway