Published on February 18, 2009
Geology and nonrenewable mineral resources terms
Geology Study of the earth's dynamic geologic history.
Study of the earth's dynamic geologic history.
Earths layers 2 kinds: Oceanic, Continental
Rock Types Caused by heat and pressure Caused by heat and then cooling Caused by weathering of rocks then compaction (pressure) Weathering Melting, then cooling Weathering Melting and pressure
Plate Tectonics (Plates)
Plate Boundries Convergent Transform Divergent Subduction Zone Earthquakes Along Fault
Magma/Lava Magma Lava Composite Volcano
Depletion Time (80%) Time frame in which usually 80% of mineral resource is predicted to be depleted-other 20% costs too much
Time frame in which usually 80% of mineral resource is predicted to be depleted-other 20% costs too much
High grade Ore Ore containing large amounts of the pure desired mineral That’s some high quality H2O
Ore containing large amounts of the pure desired mineral
Mixture One or more elements or compounds…duh
One or more elements or compounds…duh
Mineral Naturally occurring, inorganic, crystalline
Naturally occurring, inorganic, crystalline
Mineral resources: Metallic, Nonmetallic
Subsurface mining/Surface mining Subsurface Surface
Strip Mining (area and contour)
Mountain top removal Primarily for Coal Spoils-Unwanted material from the removal of the mineral
Primarily for Coal
Open Pit Mining
Ore Mixture of mineral and impurities mined from ground-Various processes used to purify
Subsidence (Due to mining mostly)
Issues Resource depletion Destruction of natural resources (land, forest, mountains) Erosion of land after mining Hazardous waste tailings in ground and water
Destruction of natural resources (land, forest, mountains)
Erosion of land after mining
Hazardous waste tailings in ground and water
Thus, resource problems—both renewable and nonrenewable—are real and are only going to get worse under the current political-economic system.
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