ESC 1000 Chapter Notes - Chapter 6: Mount Vesuvius, Plate Tectonics, Oceanic Crust
8 Apr 2016
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Pyroclasic flow swirling, hot cloud of dangerous gases, volcanish ash, and angular rock fragments. Lava dome sealed layer of lava over the top of a volcano. Meling curve (solidus) a line that divides the graph between temperature and pressure needed to successfully cool or melt a rock. Rock meling is inluenced by three main factors. An increase in temperature to a certain degree will melt a rock, and cooling to a certain temperature will solidify it. An increase in pressure will maintain a rock solid. If an increase in temperature is greater than an increase in pressure, the rock may melt; and vice versa. Decompression meling meling caused by a decrease in pressure to an already hot rock. Adding water can signiicantly lower the temperature of a rock. Adding water moves the meling curve to lower temperatures. Source area place where a magma is generated. Most rocks melt this way because diferent minerals melt at diferent temps.
