Category: Science - Earth/Agricultural/Farming

Guide to the Geologic Map of Illinois

Illinois State Geological Survey· 2 chapters· 4,120 words

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.

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Chapters

1. Part 1

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...

2. Part 2

A city or farmer needs a new water supply. Where can suitable water-bearing formations be found? A new limestone quarry is considered. Where are the most suitable limestone depo...