ANSC 2060 Chapter : Ch 13 Care Management And Training Of Dogs
Document Summary
Chapter 5 the wrath of vulcan: volcanic eruptions. Volcano: an erupting vent through with molten rock surfaces: caused by tectonic activity, eruptions can , provide highly productive soils to feed a civilization, can extinguish a civilization, effect climate. Intermediate: andesitic, higher silica makes them viscous, do not flow rapidly, but flow slowly. Lumpy flow with a bulbous snout: remains close to the vent, high silica low iron and mg, silicic, felsic, rhyolitic, has the highest silica, and most viscous, coolest and rarely flows. Lava dome dome like mass: 2. pyroclastic debris: fragments blown out of a volcano, 3. volcanic gases: vapor and aerosols that exit a volcano. Volcanistic deposits general term for accumulations of fragmented igneous material: pyroclastic debris lava that freezes flying through air, pre-existing rock fragments (around volcano vent, landslide debris, mudflows. Lapilli pea to plum sized material: blocks and bombs apple to refrigerator sized. Intermediate and felsic magmas erupt explosively: contains more gas, produce large quantities of volcanic ash.
