Illinois State Geological Survey: Guide to the Geologic Map of Illinois

Frye, John C.

Published by Illinois State Geological Survey, Urbana, IL, 1961

About this Item

Minor edge and corner wear; lightly scuffed and scratched; spine is gently creased; some light shelf wear; ex-library with the usual library markings; overall a nice used copy! Color Geologic Map Of Illinois showing Bedrock Below The Glacial Drift 1961 is included in a pocket attached to the inner rear cover. 24 historical and informative pages nicely enhanced by black and white illustrations! "Although the age of the earth is measured in billions of years, the face of Illinois is young - a mere 15,000 years old. During the Ice Age, most of Illinois was repeatedly invaded by huge glaciers, sometimes towering a mile or more high, that carried embedded in them ground up rock materials they had gouged out of the bedrock to the north as they ponderously pushed south. When the last of the glaciers melted from Illinois, about 15,000 years ago, the country that emerged looked far different from the preglacial land." ---- from Glacial Geology.

Seller Inventory # 053942

Bibliographic Details

• Title: Illinois State Geological Survey: Guide to the Geologic Map of Illinois
• Publisher: Illinois State Geological Survey, Urbana, IL
• Publication Date: 1961
• Language: English
• Binding: Soft cover
• Condition: Good
• Weight: 3 ounces