CIV ENG 70 Study Guide - Final Guide: Desert Varnish, Calcium Sulfate, Downwelling
7 Apr 2016
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Midterm i review: 3 techniques to stabilize landslide mass from moving again. Intrusive (slower cooling process, so coarser grains), phaneritic, felsic igneous rock. From volcanic eruptions, melting allowed for its formation. Mineralogy: quartz, plagioclase, k-spar, hornblende, biotite, muscovite. Typical temperature of granitic magma : 600-800 degrees f: due to foliation (being parallel to surface), any structures built on surface above that foliation is at risk of sliding down. Problematic rocks: serpentinite, slate: rockfall causes mechanisms. Rain, freeze-thaw, fractured rock, wind, snowmelt, channeled runoff, burrowing animals, tree roots: mass wasting (slope/mass movement): large movement of rock, soil, and debris downward due to gravity. Thursday, december 10, 2015: retaining wall that has drains that allows water to seep through, rock bolting. Rockfall: joint opened (due to frost or roots wedging); removal of support (by river erosion, wave action); bedrock extremely rapid: talus: accumulation of rock debris at base of cliff. Slide: block of material moves suddenly along flat, inclined surface.
