Coal in the North American Rocky Mountains: A mined resource

Type :

Term papers

Pages :

2 pages

Format :

.doc

Published date :

08/11/2009

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Summary :

 
 

Table of Contents Coal in the North American Rocky Mountains: A mined resource Table of Contents

 
  1. Introduction
  2. The heyday of coal
  3. Growth of towns in the Western states
  4. Environmental effects of the mining process
  5. Conclusion
  6. Bibliography

Abstract

coal was formed millions of years ago in the cretaceous and tertiary periods, in swamps where ancient plants decomposed and filled swamps with bark, leaves and stems. In oxygenated, moving water, the plants were completely broken down by bacteria, but in stagnant water only certain chemical elements were broken down. In these swamps, the carbon, naturally found in the plants stayed untouched by the bacteria while the oxygen, nitrogen, and hydrogen elements were partially eaten away. The carbon that remained created peat, the first form of coal. At 50 percent carbon, the longer it sits in the swampy land the more it accumulates and as the swamp and the peat begin to dry out, after much time, the carbon level increases and lignite is formed.

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About the author :

pencil image Alison V. Goodwill Industries of Northern New England
Level :Expert Study : Geography School/University : University of North Dakota

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