Lecture 9 Notes

Lecture 9 Notes - Lecture9Notes 22:06...

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Lecture 9 Notes 22:06 Lecture 9 Quiz Questions: 1. Coal forms: from terrestrial plants subjected to heat and pressure over geological time 2. The EIA estimates that the world has ____ years of coal supply left at the current extraction  rate: 132 3. Which of the following is NOT one of the top coal producing states in the US? New York   (West Virginia, Wyoming, Kentucky, and Pennsylvania are) 4. Coal can contain ____ which can cause acid mine drainage when it is exposed to the air. Pyrite 5. Coal burning produces ____ and ____ gases which cause acid rain sulfur and nitrogen COAL: Earth’s most abundant  fossil fuel. Combustible biogenic sedimentary rock Forms from highly compressed remains of land plants Contains the energy stored in living plants by photosynthesis Use has declined since the production of oil Still provides ~50% of electricity in the US With petroleum becoming scarce, coal could become the main energy source again TO FORM COAL: plants-swamps- warm climate; change in sea level Devonian : evolution of higher forms of plants with cellulose-rich stems and leaves Carboniferous : When coal is formed
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Appearance of bark-bearing trees (no bacteria that could digest the bark) Initial lower sea level compared to the Devonian Development of extensive lowland swamps and forests in North America and Europe
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This note was uploaded on 10/04/2011 for the course GEOS 1024 taught by Professor Meschreiber during the Spring '08 term at Virginia Tech.

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Lecture 9 Notes - Lecture9Notes 22:06...

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