TY  - RPRT
TI  - Investigations of the characteristics, origin, and residence time of the upland residual mantle of the Piedmont of Fairfax County, Virginia
AU  - M.J. Pavich
AU  - G. W. Leo
AU  - S. F. Obermeier
AU  - J.R. Estabrook
PY  - 1989
DO  - 10.3133/pp1352
UR  - https://pubs.usgs.gov/publication/pp1352
ID  - pp1352
ER  -