Public domain. Cover image from Project Gutenberg ebook #66317.
Inside Illinois: Mineral Resources
Capítulos (24)
- INSIDE ILLINOIS Mineral Resources 0:00
- INSIDE ILLINOIS Mineral Resources 0:07
- INSIDE ILLINOIS— Mineral Resources 0:37
- WHAT IS THE EARTH MADE OF BENEATH THE GROUND SURFACE? 1:59
- WHAT IS CORE? 2:51
- HOW DOES THE MANTLE DIFFER FROM THE CORE? 3:09
- WHAT IS THE CRUST OF THE EARTH AND HOW IS IT DISTINGUISHED FROM THE MANTLE AND THE CORE? 3:24
- WHAT IS THE EARTH’S CRUST UNDER ILLINOIS MADE OF? 3:56
- WHEN AND HOW WAS THE LAND SURFACE OF ILLINOIS FORMED? 4:25
- WHERE DID THE LOOSE, UNCONSOLIDATED DEPOSITS COME FROM AND WHAT ARE THEY MADE OF? 4:54
- HOW DID ILLINOIS GET ITS SOILS? 6:17
- MINERAL WEALTH 7:36
- PETROLEUM 10:21
- COAL 16:14
- STONE AND STONE PRODUCTS 22:26
- CLAY 26:29
- SAND AND GRAVEL 28:17
- SILICA SAND 29:06
- TRIPOLI 30:40
- FLUORSPAR 31:12
- LEAD AND ZINC 33:18
- GROUND WATER 35:13
- ILLINOIS STATE GEOLOGICAL SURVEY 39:22
- Transcriber’s Notes 41:46