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Sartoga Chalk

Sartoga Chalk
State Arkansas
Name Sartoga Chalk
Geologic age Phanerozoic | Mesozoic | Cretaceous-Late
Comments Fossilferous sandy chalk, glauconitic chalk,marly chalk and chalky sand. Approximately 50 ft. thick. Chalk= Limestone
Primary rock type limestone
Secondary rock type sand
Other rock types
Lithologic constituents
Major
Sedimentary > Carbonate > Limestone (Bed)Chalk= Limestone
Minor
Sedimentary > Clastic > Sandstone (Bed)
Map references
Haley, B. R., Glick, E. E., Bush, W. V.; Clardy, B. F.; Stone, C. G.; Woodward, M. B., Zachry, D.L., 1993, Geologic Map of Arkansas: U.S.Geological Survey Special Geologic Map. Scale 1:500K
Unit references
Dane,C. H.,1929, Upper Cretaceous formations of southwestern Arkansas: Arkansas Geol. Survey Bull.1, 215 pp.
Counties Clark - Hempstead - Howard - Little River