|Name||Missouri Mountain Shale and Baylock Sandstone|
|Geologic age||Late Silurian|
Sedimentary > Clastic > Sandstone (Bed)
Sedimentary > Clastic > Mudstone > Shale (Bed)
Sedimentary > Clastic > Siltstone (Bed)
Sedimentary > Clastic > Conglomerate (Bed)
|Comments||Missouri Mtn. Shale-argillitic shale with minor sandstone and conglomerate (250 ft.); Baylock Sandstone-sandstone with minor siltstone and shale (1000 ft.) Approximatly 1250 ft. maximum thickness. Summary- 75% sandstone, 20% shale, 5% other|
Ferguson, J.G., 1920. Outlines of the geology, soils, and minerals of the State of Arkansas: Arkansas State Bureau of Mines, Manufactures and Agriculture,192 pp.
Stone, C.G. and Bush, W.V. 1982, Summary of the geology of the eastern Ouachita Mountains, Arkansas: Guidebook - Arkansas Geological Commission, vol.82-2, 24 pp.
|Counties||Garland - Hot Spring - Montgomery - Pike - Polk - Pulaski - Saline|