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Mineral Resources On-Line Spatial Data

DOUGLAS GROUP

DOUGLAS GROUP - cyclic deposits, dominantly shale with sandstone, and limestone.
StateMissouri
NameDOUGLAS GROUP
Geologic agePhanerozoic | Paleozoic | Carboniferous Pennsylvanian-Late [Upper Virgilian]
Original map labelPd
CommentsCyclic deposits, principally shale, sandy shale, sandstone, separated by limestone beds and minor coal
Primary rock typeshale
Secondary rock typesandstone
Other rock typeslimestone; coal
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone > Shale (Bed)
Sedimentary > Clastic > Sandstone (Bed)
Minor
Sedimentary > Carbonate > Limestone (Bed)
Incidental
Sedimentary > Coal (Bed)
Map references
Middendorf, M. A., and others, 2003, Geologic Map of Missouri: Missouri Geological Survey. Scale 1:500K
Unit references
Howe, W. B. and Koenig, 1961, The Stratigraphic Succession in Missouri: Missouri Geological Survey and Water Resources, Vol XL. 2nd Series.
CountiesAndrew - Buchanan - Clay - Holt - Linn - Nodaway - Platte - Worth

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