USGS - science for a changing world

Mineral Resources On-Line Spatial Data

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

Red Mountain Formation

Red Mountain Formation - dark-reddish-brown to olive-gray partly fossiliferous, mostly fine-grained sandstone interbedded with siltstone and shale; minor amounts of bioclastic limestone and conglomerate sandstone; includes hematitic beds and beds of ferruginous sandstone, outcrops in northeastern AL are finer grained and include more limestone.
StateAlabama
NameRed Mountain Formation
Geologic ageSilurian
Original map labelSrm
Primary rock typesandstone
Secondary rock typesiltstone
Other rock typesshale; limestone; conglomerate
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone (Bed)dark-reddish-brown to olive-gray partly fossiliferous, mostly fine-grained sandstone; includes hematitic beds and beds of ferruginous sandstone
Minor
Sedimentary > Clastic > Mudstone > Shale (Bed)
Sedimentary > Clastic > Siltstone (Bed)
Incidental
Sedimentary > Clastic > Conglomerate (Bed)minor amounts of bioclastic limestone and conglomerate sandstone
Sedimentary > Carbonate > Limestone (Bed)minor amounts of bioclastic limestone
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.

Show this information as [XML] - [JSON]

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=ALSrm;5
Page Contact Information: Peter Schweitzer