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Little Oak and Newala Limestones undifferentiated

Little Oak and Newala Limestones undifferentiated - Little Oak Limestone -- dark-gray medium to thick-bedded fossiliferous, argillaceous to silty limestone containing chert nodules. Locally includes thin beds of bentonite in the upper part. Newala Limestone -- light to dark-gray thick-bedded micritic and peloidal limestone and minor dolomite.
StateAlabama
NameLittle Oak and Newala Limestones undifferentiated
Geologic ageOrdovician
Original map labelOlon
Primary rock typelimestone
Secondary rock typechert
Other rock typesbentonite; dolostone (dolomite)
Lithologic constituents
Major
Sedimentary > Carbonate > Limestone (Bed)Little Oak Limestone -- dark-gray medium to thick-bedded fossiliferous, argillaceous to silty limestone; Newala Limestone -- light to dark-gray thick-bedded micritic and peloidal limestone
Incidental
Sedimentary > Carbonate > Dolostone (Bed)Newala Limestone -- minor dolomite
Sedimentary > Clastic > Mudstone > Claystone > Bentonite (Bed)
Sedimentary > Chemical > Chert (Bed)Little Oak Limestone - chert nodules
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 coverageCalhoun - Etowah

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URL: http://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=ALOlon;6
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