Sugarloaf Mountain Quartzite

Massive white quartzite interbedded with softer sericitic quartzite, slate, and phyllite.
State Maryland
Name Sugarloaf Mountain Quartzite
Geologic age Late Precambrian (?)
Lithologic constituents
Major
Metamorphic > Metasedimentary > Metaclastic > Quartzite
Incidental
Metamorphic > Metasedimentary > Metaclastic > Phyllite
Metamorphic > Metasedimentary > Metaclastic > Slate
References

Cleaves, E.T., Edwards, J., Jr., and Glaser, J.D., 1968, Geologic Map of Maryland: Maryland Geological Survey, Baltimore, Maryland, scale 1:250,000.

In 1995 the Water Resources Division of the U.S. Geological Survey digitized the geologic map of Maryland from the 1968 paper map (Reference MD001). Information about products from the Maryland Geological Survey can be found at http://www.mgs.md.gov/.

NGMDB product
Counties Frederick - Montgomery