geol 108 - crises of a planet lab 10 - toxic waste
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GEOL 108 - Crises of a PlanetLab 10 - Toxic Waste
Nov. 6 - 9, 2012
Department of Earth Sciences
Department of Earth Sciences
REVIEW | 2
QUIZ 8 REVIEWWhat are the two types of stream morphologies? (1 pt) Sketch both (2 pts) and show where cut banks and point bars occur (1 pt), indicating which is caused by erosion and which by deposition.
Department of Earth Sciences
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LAB 10 - TOXIC WASTE
+ =
Robocop (1987)
Department of Earth Sciences
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RADIOACTIVE DECAY
• Pu-239 is a common waste product of nuclear fission.• Decay of Pu-239 produces an alpha particle (He atom) which
is not a serious threat until ingested.• Alpha particles cause extreme chromosomal damage to cells
and lead to cancer
Department of Earth Sciences
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RADIOACTIVE DECAY
Department of Earth Sciences
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NUCLEAR ENERGY
• Nuclear energy as % of total energy production by country
http://intuitech.biz/nuclear-energy-technology-roadmap/
Department of Earth Sciences
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NUCLEAR ENERGY
• Location of operating nuclear power plants
Department of Earth Sciences
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NUCLEAR ENERGY
Robert A. Rohde
Department of Earth Sciences
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RADIOACTIVE WASTE• Hanford, Washington• 53 million gallons of high-level radioactive waste on
site after facility closed
Department of Earth Sciences
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RADIOACTIVE WASTE
• Yucca Mountain
Department of Earth Sciences
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RADIOACTIVE WASTE
• Faults and groundwater at Yucca Mountain
Radioactive Man and Fallout Boy
Department of Earth Sciences
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USES OF RADIOACTIVE DECAY
• Absolute ages by radiometric dating• Example: Certain minerals, like zircon, take in
uranium but not lead while growing• U235/Pb207 system half-life: 713 million years
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