USGS - science for a changing world

Mineral Resources On-Line Spatial Data

Mineral Resources > Online Spatial Data > Geology > by state > Alabama

Parkwood Formation

Parkwood Formation - Interbedded medium to dark-gray shale and light to medium-gray sandstone; locally contains dusky-red and grayish-green mudstone, argillaceous limestone, and clayey coal.
StateAlabama
NameParkwood Formation
Geologic agePennsylvanian-Mississippian
Original map labelPMpw
Primary rock typeshale
Secondary rock typesandstone
Other rock typesmudstone; limestone; clay or mud; mixed clastic/coal
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone > Shale (Bed)
Minor
Sedimentary > Clastic > Mudstone (Bed)
Sedimentary > Clastic > Sandstone (Bed)
Incidental
Sedimentary > Carbonate > Limestone (Bed)argillaceous limestone
Unconsolidated > Fine-detrital > Clay (Bed)clayey coal
Sedimentary > Coal (Bed)clayey coal
Map references
Szabo, M. W., Osborne, E. W., Copeland, C. W. Jr., Neathery; T. L., 1988, Geologic Map of Alabama, Geological Survey of Alabama Special Map 220, scale 1:250,000.
Unit references
Szabo, M. W., Osborne, E. W., Copeland, C. W. Jr., Neathery; T. L., 1988, Geologic Map of Alabama, Geological Survey of Alabama Special Map 220, scale 1:250,000.
Geographic coverageBibb - Calhoun - Cullman - Franklin - Jefferson - Lawrence - Marion - Morgan - Saint Clair - Shelby - Tuscaloosa - Winston

Show this information as [XML]

AccessibilityFOIAPrivacyPolicies and Notices

Take Pride in America logoUSA.gov logoU.S. Department of the Interior | U.S. Geological Survey
URL: http://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=ALPAMpw;2
Page Contact Information: Peter Schweitzer