EARTHSC 1G03 Study Guide - Midterm Guide: Geologic Time Scale, Tectonic Uplift, Radioactive Decay
15 Dec 2013
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Document Summary
There are two different types of basaltic lava. Mt st helens: when it was preparing to erupt, a giant buldge formed on the north flank. This buldge is was a build-up of magma. When it erupted, smoke, gas, rocks and magama exploded out of it. It formed a giant crater on top of the volcano. Flights were cancelled, property and life around the volcano was destroyed and the people living near it were evacuated. Now st helens is a mountain with a giant crater on top and a mini mountain in the middle of the crater. Pyroclastic eruptions: pyroclastic flows are deadly, fast moving clouds of volcanic ash and gas. Gis: any tool that"s used to measure/analyze something about earth. Some place to another (google maps), is a small part of gis. Able to propose new fault zones that may contribute to reservoir generation. Plate wizard: allows us to reconstruct the positions of earth"s plates.
