Quaternary nonmarine deposits

Periglacial lacustrine deposits. Light-brown, well-sorted and bedded clayey sandstone and sandy clay with interbeds of volcanic ash and calcareous cemented gravels.
State Washington
Name Quaternary nonmarine deposits
Geologic age Pleistocene
Lithologic constituents
Unconsolidated > Fine-detrital > Clay (Lacustrine)
Igneous > Volcanic (Pyroclastic-air fall)
Sedimentary > Clastic > Sandstone (Bed)
Unconsolidated > Coarse-detrital > Gravel (Lacustrine)
Comments Ringold Formation consists of fluvial and lacustrine fanglomerate, conglomerate, sand, silt, clay with minor tephra. Finer materials make up a larger proportion of the Formation but in relatively unknown abundances (Grolier and Bingham, 1971, Schuster and others, 1987). Located near Potholes Reservoir (Ringold) and near Vancouver.
Stratigraphic units Ringold Formation

Huntting, M.T., Bennett, W.A.G., Livingston, V.E.Jr., and Moen, W.S., 1961, Geologic Map of Washington: Washington Division of Mines and Geology, scale 1:500,000.

Schuster, J.E., Gulick, C.W., Reidel, S.P., Fecht, K.R., Zurenko, S., 1997, Geologic Map of Washington--Southeast Quadrant: Washington Division of Geology and Earth Resources Geologic Map GM-45, scale 1:250,000.

Grolier, M.J. and Bingham, J.W., 1971, Geologic Map and Sections of Parts of Grant, Adams, and Franklin Counties, Washington: U. S. Geological Survey Miscellaneous Geologic Investigations Map I-589, 6 pls., scale 1:62,500.

NGMDB product
Counties Adams - Benton - Clark - Cowlitz - Franklin - Grant