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Catoctin Formation - Metasedimentary rocks

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Quartzite, feldspathic metasandstone, metasiltstone, and phyllite; occurs in discontinuous beds that are generally less than 50 feet thick, interbedded with Catoctin metabasalt (CZc).
State Virginia
Name Catoctin Formation - Metasedimentary rocks
Geologic age Proterozoic Z-Cambrian
Lithologic constituents
Major
Metamorphic > Metasedimentary > Metaclastic > Metasandstonefeldspathic
Metamorphic > Metasedimentary > Metaclastic > Metasiltstone
Metamorphic > Metasedimentary > Metaclastic > Quartzite
Minor
Metamorphic > Metasedimentary > Metaclastic > Phyllite
Comments Blue Ridge Anticlinorium (Central)
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 Culpeper - Fauquier - Loudoun