NATS 1750 Chapter Notes - Chapter 6: Source Rock, Asthenosphere, Potassium Oxide
22 Dec 2017
School
Department
Course
Professor
Document Summary
Igneous rocks: rock made by freezing of a melt has formed. Igneous rocks exist in the earth crust, they make up all of the ocean crust, beneath the veneer of the sea oor sediment as well as the volumes of the continental crust: magma: the melt that is underground. Lava: the melt that has emerged at the earth"s surface: volcano: lava emerges from a vent, volcanic eruption: when lava emerges from volcano, it is an volcanic eruption. Extrusive: onto the surface of the earth and it comes into contact with air, water, or forms by the cementing or welding by pyroclastic debris. Intrusive: magma that has pushed its way into pre-existing rock: magma chamber: magma accumulates in an irregularly shaped zone. #1: everytime a collision occurred from planetesimals kinetic energy (energy of motion) transformed into heat energy. Thursday, december 7, 2017: compression of the earth insides made the earth even hotter, earth becomes hot enough to make iron melt.
