Geology 101, Fall 2007 Name: Assignment 2: Minerals and igneous rocks Due Monday, October 8, noon Define/distinguish the following terms:sedimentary versus igneous versus metamorphic crystallization versus deposition weathering versus erosion magma versus lava intrusive (plutonic) rock versus extrusive (volcanic) rock texture versus grain size pyroclastic flow versus laharporphyritic versus vesicular If a mineral melts at 800°C, at what temperature does it freeze? Quartz melts at about 600°C. A rock rich in quartz (but not entirely made of quartz) is heated to 650°C; describe what the rock would look like. Mauna Kea is a broad shield volcano on the island of Hawai’i. The uppermost 1000 feet or so is, however, a composite volcano. Describe the history of the formation of Mauna
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