Sioux Quartzite (SDXs;0)

Pink, reddish to tan, siliceous, fine to coarse-grained, iron-stained orthoquartzite with minor conglomerate and mudstone layers. Estimated thickness greater than 1,000 ft (305 m).

State	South Dakota
Name	Sioux Quartzite
Geologic age	Proterozoic \| Paleoproterozoic
Original map label	Xs
Primary rock type	quartzite
Secondary rock type	conglomerate
Other rock types	mudstone
Lithologic constituents	Major Sedimentary > Quartzite (Bed) Minor Sedimentary > Clastic > Mudstone (Bed) Sedimentary > Clastic > Conglomerate (Bed)
Map references	Martin, J. E., Sawyer, J. F., Fahrenbach, M. D., Tomhave, D. W., and Schulz, L. D., 2004, Geologic Map of South Dakota: South Dakota Geological Survey
Unit references	Martin, J. E., Sawyer, J. F., Fahrenbach, M. D., Tomhave, D. W., and Schulz, L. D., 2004, Geologic Map of South Dakota: South Dakota Geological Survey
Geographic coverage	Hanson - Minnehaha