Part 2

Such knowledge is shared with the public through publications, maps, lectures, and personal consultations with industries, drillers, engineers, land owners, teachers, and others in need of geologic information.

The discovery of facts about the rich mineral resources of Illinois has, in effect, only begun, and it is the task of the Geological Survey to continue to collect and apply new information so that our resources can be used to the best advantage.

EDUCATIONAL EXTENSION PROGRAM

The Educational Extension Section of the Geological Survey conducts six field trips each year, in various parts of the state, for teachers, students, and laymen. It also assembles and distributes rock and mineral collections for Illinois educational groups, gives lectures, prepares exhibits, and identifies rocks and minerals for the public.

Educational Extension publications, such as this book, are simplified discussions of geological subjects. Available for 25 cents each, these include:

Educational Series 4: Guide for Beginning Fossil Hunters, by Charles W. Collinson. Educational Series 5: Guide to Rocks and Minerals of Illinois. Educational Series 6: Field Book of Pennsylvanian Plant Fossils of Illinois, by Charles Collinson and Romayne Skartvedt.

Many technical discussions of the various phases of Illinois geology also are published by the Geological Survey. Regional reports on the geology and mineral resources of some areas are available in many school and public libraries or they may be purchased from the Survey. Some of the regional reports include:

Beardstown, Glasford, Havana, and Vermont Quadrangles, Bulletin 82, $1.00. Buda Quadrangle, Circular 275, no charge. Carlinville Quadrangle, Bulletin 77, $1.00 Chicago Region, Bulletin 65, Part 1, 50 cents. Marseilles, Ottawa, and Streator Quadrangles, Bulletin 66, $1.00.

“Mineral Production in Illinois in 1959,” Circular 300 (no charge), is one of a series of annual economic summaries. “Caves of Illinois,” Report of Investigations 215, price 50 cents, will be available by September 1961.

Illinois State Geological Survey Educational Series 7 24 pages, 1 plate, 12 figures, 1961

[Illustration: Illinois State Geological Survey, Urbana Educational Series 7—Plate 1—North]

[Illustration: Illinois State Geological Survey, Urbana Educational Series 7—Plate 1—Central]

[Illustration: Illinois State Geological Survey, Urbana Educational Series 7—Plate 1—South]

GEOLOGIC MAP OF ILLINOIS showing BEDROCK BELOW THE GLACIAL DRIFT 1961 KEY T Tertiary (Pliocene omitted) K Cretaceous P² Pennsylvanian (Above No. 6 Coal) P¹ Pennsylvanian (Below No. 6 Coal) P³ Pennsylvanian (Above No. 6 Coal) M² Mississippian (Upper) M¹ Mississippian (Middle and Lower) D Devonian SD Silurian and Devonian S Silurian O Ordovician C Cambrian F Fault OSDM Complex faulted area Physiographic base map by James A. Bier Price, 25 cents

[Illustration: PENNSYLVANIAN COAL-BEARING ROCKS]

Transcriber’s Notes

—Silently corrected a few typos.

—Retained publication information from the printed edition: this eBook is public-domain in the country of publication.

—In the text versions only, text in italics is delimited by _underscores_.