GLG101 - Chapter 1
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This 3 page Reader was uploaded by Notetaker Notetaker on Sunday January 25, 2015. The Reader belongs to a course at Arizona State University taught by a professor in Fall. Since its upload, it has received 52 views.
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Same time next week teach? Can't wait for next weeks notes!
-Agustin Graham IV
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Date Created: 01/25/15
o 10 The Nature Of Geology 0 Glacier National Park 0 Mount St Helens o Everglades National Park 0 11 How Does Geology Influence Where We Live 0 Volcanoes Deadly but provide important soil nutrients to grow crops 0 Rivers Cities are built along rivers Provides water However can flood o Fau s Cause earthquakes which can kill many 0 13 What is inside Earth ange with Depth o Crusts Oceanic Crust is much thinner than continental crust o Lithosphere Strong Crust and Upper Mantle Lithospheric mantle o Asthenosphere Hotter than rock above Can flow under pressure Allows the lithosphere to move Weaker 0 Why Do Some Regions Have High Elevations Crust is less dense than mantle Regions with high elevation have thick crust Regions with low elevation have a thin crust lsostasy Plates float at an elevation depending on their thickness and elevation o 15 How Do Rocks Form 0 Sedimentary rocks Formed on Earths surface From loose sediment deposited by water 0 Igneous rocks Cooled Magma Molten rock crystallizes in magma chambers o Metamorphic Changed by temperatures pressures or deformation Hydrothermal rocks 0 16 What Can Happen To A Rock 0 Rock Cycle Weathering Interactions with sunlight rain wind plants and animals Creates Sediment Erosion and Transport Moved from initial location Things such as water and gravity can move material Deposition Sediment coming to a rest Burial and Lithification Sediment can be buried by overlying material Lithification Process of sediment turning into rock Deformation and Metamorphism Strong forces can squeeze rock lf deep rock can be heated and deformed Melting High temperatures will cause to melt Produces magma Usually occurs in lower crust or mantle Solidification As magma cools it will solidify and harden lf crystals form the process is called crystallization Uplift Back to surface Commonly occurs in mountains o 17 How Do the Atmosphere Water and Life Interact with Earth s Surface 0 Atmosphere Composed of mostly nitrogen and oxygen 0 BioSphere All life 0 Hydrosphere All Water