EARTHSC 1105 Lecture Notes - Lecture 21: Mammoth Cave National Park, Potassium Nitrate, Sedimentary Rock
15 Nov 2016
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Mammoth cave national park: utilized cave for housing, mining- gypsum and salts, artifacts, petroglyphs, mummies. African american slaves: 1811-1812- saltpeter mines, saltpeter potassium nitrate, used in gunpowder, guides. Many used earnings to buy freedom: post-civil war non-slave african american guides. National park in 1941: not completed until the end of wwii. Fault- the breaking and displacement of rock layer. Graben- downfaulted block: basin low lying area in which sediment is collected. Limestone formed from caco3 producing photosynthetic organisms: sedimentary rock rocks formed from eroded pre-existing rocks or. Horst and graben regions between normal faults which are elevated or. Karst topography landscape created by the dissolution of limestone. Carbonic acid h2co3 (water plus carbon dioxide = carbonic acid) Weathering wearing away of rock due to wind or water. Erosion removal of weathered material from its source depressed with respect to adjacent blocks. Extremely slow growth 0. 005 inches/ year. What is evolution: change in allele frequency with time.
