GEOL 1003 Study Guide - Midterm Guide: Pyroclastic Surge, El Chichón, Volcanic Arc

• School: University of Oklahoma
• Department: GEOL
• Course: GEOL 1003
• Professor: Barry Weaver

Document Summary

Increase in distance means increase in thickness. Increase in pressure means increase in melting point. Basalt magma is produced by melting of peridotite of the asthenosphere. This hot fluid reacts with the basalt and gabbro, leaching metals from the rock, but at the same time adding water to them - hydration - to produce hydrous minerals by metamorphism. Water heats, water becomes mineralized, rocks of ocean crust become hydrated. Magnitudes generally small to moderate,