USGS Home
Contact USGS
Search USGS

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

Geologic units in Maries county, Missouri

PENNSYLVANIAN UNDIFFERENTIATED (Phanerozoic | Paleozoic | Carboniferous Pennsylvanian) at surface, covers 21 % of this area

PENNSYLVANIAN UNDIFFERENTIATED

Lithology: shale; limestone; sandstone; coal

MARMATON GROUP (Phanerozoic | Paleozoic | Carboniferous Pennsylvanian-Middle [Middle Desmonian]) at surface, covers < 0.1 % of this area

MARMATON GROUP - cyclic deposits, shale and limestone with sandstone, clay and several coal beds, some workable

Lithology: limestone; shale; sandstone; clay or mud; coal

SMITHVILLE DOLOMITE, POWELL DOLOMITE, COTTER DOLOMITE, JEFFERSON CITY DOLOMITE (Phanerozoic | Paleozoic | Ordovician-Early [Ibexian]) at surface, covers 47 % of this area

SMITHVILLE DOLOMITE, POWELL DOLOMITE, COTTER DOLOMITE, JEFFERSON CITY DOLOMITE - fine crystalline, silty, cherty dolomite, and oolitic chert with local sandstone beds

Lithology: dolostone (dolomite); sandstone; shale; conglomerate; chert

GASCONADE DOLOMITE (Phanerozoic | Paleozoic | Ordovician-Early [Ibexian]) at surface, covers 10 % of this area

GASCONADE DOLOMITE - coarse - crystalline cherty dolomite with a basal Gunter Sandstone Member.

Lithology: dolostone (dolomite); sandstone

ROUBIDOUX FORMATION (Phanerozoic | Paleozoic | Ordovician-Early [Ibexian]) at surface, covers 22 % of this area

ROUBIDOUX FORMATION - sandstone, chert and interbedded dolomite

Lithology: sandstone; chert; dolostone (dolomite)

DEVONIAN SYSTEM (Phanerozoic | Paleozoic | Devonian-Early Devonian-Middle(?) Devonian-Late) at surface, covers < 0.1 % of this area

DEVONIAN SYSTEM - CHATTANOOGA SHALE, SYLAMORE SANDSTONE, FORTUNE FORMATION, HOLTS SUMMIT SANDSTONE, SNYDER CREEK SHALE, CEDAR VALLEY LIMESTONE, LOUISIANA LIMESTONE, SAVERTON SHALE, GRASSY CREEK SHALE, TURPIN SANDSTONE, BUSHBERG SANDSTONE, GLEN PARK LIMESTONE, St. LARENT LIMESTONE, BEAUVAIS SANDSTONE, GRAND TOWER LIMESTONE, CLEAR CREEK CHERT, LITTLE SALINE LIMESTONE, GRASSY KNOB CHERT, BAILEY FORMATION

Lithology: limestone; sandstone; shale; chert

OSAGEAN SERIES (Phanerozoic | Paleozoic | Carboniferous Mississippian-Early [Osagean]) at surface, covers 0.2 % of this area

OSAGEAN SERIES - KEOKUK LIMESTONE, BURLINGTON LIMESTONE, ELSEY FORMATION, REEDS SPRING FORMATION, PIERSON LIMESTONE, FERN GLEN FORMATION

Lithology: limestone; chert; dolostone (dolomite); shale