GEO 1111 Lecture Notes - Lecture 3: Extrusive Rock, Liquigas, San Andreas Fault

• School: University of Ottawa
• Department: Geology
• Course: GEO 1111
• Professor: Mark Charette

Document Summary

Felsic: silicate minerals, magmas, rocks low percent heavier. Pre-existing rock that is compacted and cemented together. Accumulate is layers after being transported or percipeted. Chemical rocks: sediment the precipitates from solution or extracted from water by organisms (converted to shells/skeletons). Sediments, the raw material from: metamorphi c. Any pre-existing rock that has undergone temperature or pressure change or structural changes. Made from previous igneous, sedimentary and even metamorphic rock. Most changes occur at high temperatures and pressures in the earth"s crust and mantle. P and t alter sedimentary rocks accumulate on the earth"s surface. Some of the weathering physical break the rock down into smaller pieces. Some other procees can chemically change it into new minerals that can dissolve in water. Products of weather, transported by water, wind, or glacial sites. called magma, cools and solidifies. As the magma cools, and solidifies, crystals of various minerals grow and form.