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# LSUMNS geology activities, part 2

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Students will gain an understanding of where minerals come from and the environmental impact of mining.

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### LSUMNS geology activities, part 2

1. 1. An LSU Museum of Natural Science presentation to accompany the activity Louisiana Rocks andLouisiana Rocks and MineralsMinerals
2. 2. Mining Calculations 3. Record the value of your minerals (\$1000 for every gram in the cup): \$____ Total profit = #3 – (#1 + #2) Value of Minerals \$_____ - Total Cost \$_____ = Total Profit \$_______ 1. Total mining and processing fee (\$100 per every five minutes): \$_____ 2. Land damage: # of broken cookie pieces X \$100 = \$_____ Total cost = #1 + #2 Total Land Damage + Chip Mine Fee: \$______
3. 3. Objective: Students will gain an understanding of where minerals come from and the environmental impact of mining. Materials For teacher: Stop watch, scale, bucket of pennies For student: 4 chocolate cookies, toothpicks, pencil, data recording sheet, small weigh boat Mining for MMM…Mining for MMM… MineralsMinerals
4. 4. Mining rules 1. Your mine will earn \$1000 for every gram of chips mined. 2. You will be charged \$100 for every 5 minutes of mining. 3. You will be fined \$100 for each piece of cookie that breaks off. The more damage, the more you lose.
5. 5. Investigating the layer- cake earth What is stratigraphy? Study of sediment layers and the relationship between rocks and fossils with time.
6. 6. Rules of StratigraphyRules of Stratigraphy • Steno’s Principle of Superposition Lower layers are older than higher layers • Original Horizontality Layers are deposited in (near-) horizontal manner • Principle of Lateral continuity Layers extend laterally in all direction • Cross-Cutting Relationships Layers intruded by other rocks are older than the intruding rocks
7. 7. Unconformities- represents a gap in deposition – lost time! • Nonconformity • Angular • Disconformity Sediment layers are LostSediment layers are Lost…..….. http://epod.usra.edu/archive/images/uncoformitysm.jpg
8. 8. ……..And Moved..And Moved Faults - Surfaces where rocks have fractured and been displaced (move relative to one another).
9. 9. Rules apply across Space and Time!Rules apply across Space and Time!
10. 10. Given the diagram, list the order (oldest to youngest) in which the following events happened: A. Faulting B. Tilting E. Intrusion C. Erosion D. Deposition Classroom assessment activity Deposition 1 Deposition 1 Tilting Tilting Deposition 2 Deposition 2 Intrusion Erosion Faulting 1. Deposition 1 2. Tilting 3. Erosion 4. Deposition 2 5. Intrusion 6. Faulting
11. 11. Illustration of example cake set-up. Note different cake layers (different colors) and fault.