Geologic notes.

Stratigraphic policy of the Illinois State Geological Survey /
by: Willman, H. B. (Harold Bowen), 1901-
Published: (1958)

Deep-water sediments adjacent to the Borden Siltstone (Mississippian) Delta in southern Illinois /
by: Lineback, Jerry Alvin
Published: (1966)

Preliminary geologic map of the Mississippian formations in the Dongola, Vienna and Brownfield quadrangles /
by: Weller, Stuart, 1870-1927
Published: (1939)

Subsurface geology and coal resources of the Pennsylvanian system in certain counties of the Illinois basin.
Published: (1951)

Geology and coal resources of a part of the Pennsylvanian system in Shelby, Moultrie, and portions of Effingham and Fayette Counties.
by: DuBois, Ernest Paul, 1917-
Published: (1951)

Subsurface geology and coal resources of the Pennsylvanian system in De Witt, McLean, and Piatt Counties, Illinois /
by: Clegg, Kenneth Edward
Published: (1972)

Short papers on geologic subjects : Some new observations on Niagaran reefs in Illinois /
Published: (1953)

Geology and petrology of the Anvil Rock sandstone of southern Illinois.
by: Hopkins, M. E., 1928-
Published: (1958)

Geology and economic resources of the St. Peter sandstone of Illinois /
by: Lamar, J. E. (John Everts), 1897-1979
Published: (1928)

Geology and economic resources of the St. Peter Sandstone of Illinois /
by: Lamar, J. E. (John Everts), 1897-1979
Published: (1928)

Regional geology of the Tiskilwa Till Member, Wedron Formation, northeastern Illinois /
by: Wickham, Susan Specht
Published: (1988)

The New Albany shale group of Illinois /
by: Cluff, Robert W.
Published: (1981)

Farmdale drift in northwestern Illinois.
by: Shaffer, Paul R. (Paul Raymond), 1910-
Published: (1956)

Quaternary geology, geomorphology, and climatic history of Kane County, Illinois /
by: Curry, B. B.
Published: (1999)

Pleistocene geology of the Danville region.
by: Eveland, Harmon Edwin, 1924-
Published: (1952)

Contributions to the stratigraphy of Illinois : The Salem limestone /
by: Weller, Stuart, 1870-1927
Published: (1907)

Mississippian limestone resources in Fulton, McDonough, and Schuyler Counties, Illinois /
by: Harvey, Richard David
Published: (1964)

Subsurface geology and coal resources of the Pennsylvanian system in White County, Illinois.
by: Harrison, John Albert
Published: (1951)

Cambrian and Ordovician strata of northeastern Illinois.
by: Buschbach, T. C. (Thomas Charles), 1923-
Published: (1964)

I. Subsurface relations of the Maquoketa and "Trenton" formations in Illinois /
by: Du Bois, Ernest Paul, 1917-
Published: (1945)

Age of the Springville shale (Mississippian) of Southern Illinois /
by: Collinson, Charles William
Published: (1958)

Geology and petrology of the Trivoli sandstone in the Illinois Basin.
by: Andresen, Marvin John
Published: (1961)

Subsurface geology and coal resources of the Pennsylvanian system in Douglas, Coles, and Cumberland Counties, Illinois.
by: Clegg, Kenneth Edward
Published: (1959)

Preliminary geologic map of parts of the Alto Pass, Jonesboro, and Thebes quadrangles, Union, Alexander and Jackson Counties /
by: Weller, J. Marvin (James Marvin), 1899-1976
Published: (1940)

Geochemistry of black shales of the New Albany Group (Devonian-Mississippian) in the Illinois Basin : relationships between lithofacies and the carbon, sulfer, and iron contents /
by: Frost, Joyce K.
Published: (1996)

Subsurface geology and coal resources of the Pennsylvanian system; Sangamon, Macon, Menard, and parts of Christian and Logan Counties, Illinois.
by: Clegg, Kenneth Edward
Published: (1961)

Extension of Tazewell glacial substage of western Illinois and eastern Iowa /
by: Shaffer, Paul R. (Paul Raymond), 1910-
Published: (1954)

Cretaceous deposits and the Illinoian glacial boundary in western Illinois /
by: Frye, John C., (John Chapman), 1912-1982
Published: (1964)

Correlation and palynology of coals in the Carbondale and Spoon formations (Pennsylvanian) of the northeastern part of the Illinois Basin /
by: Peppers, Russel A. (Russel Allen), 1932-
Published: (1970)

Stratigraphic studies of Pennsylvanian outcrops in part of southeastern Illinois /
by: Newton, William Albert, 1912-
Published: (1937)

Subsurface stratigraphy of the Pleistocene deposits of central northern Illinois.
by: Kempton, John P. (John Paul)
Published: (1963)

Paleogeologic map of the sub-Pennsylvanian Chesterian (upper Mississippian) surface in the Illinois basin /
by: Bristol, H. M.
Published: (1971)

Pleistocene deposits below the Wisconsin drift in northeastern Illinois.
by: Horberg, Leland, 1910-1955
Published: (1953)

Wisconsinan, Sangamonian, and Illinoian stratigraphy in central Illinois /
Published: (1979)

The Middle Devonian strata of southern Illinois /
by: North, William G.
Published: (1969)

The Platteville and Galena group in northern Illinois /
by: Willman, H. B. (Harold Bowen), 1901-
Published: (1978)