08-27GeologyNotes.pdf GEOL 1200 - 004
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This 3 page Class Notes was uploaded by Keely Haggar on Sunday August 30, 2015. The Class Notes belongs to GEOL 1200 - 004 at University of North Carolina - Charlotte taught by Jake Armour in Fall 2015. Since its upload, it has received 145 views. For similar materials see Physical Geography in Natural Sciences at University of North Carolina - Charlotte.
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Date Created: 08/30/15
08272015 Geology 1200 Chapters 1amp2 The Big Bang What is is and how we know about it gt Trend of earthquakes in Oklahoma has been rising o Earthquakes have a trend and are occurring central to 0k City I Fracking is a probable cause Test with scientific method gt How do you test that the coincidence is actuality 0 Stop fracking for a certain amount of time and see if the earthquakes decline Geologists Extract resources Three sisters Gases at the base of the peaks creating the fourth sister They knew about these gases because of the dead cattle Geology can be done in space Le Mars Robotic geologists rovers are there collecting samples and images to inspect the surface of mars Purpose To collect data and study the rocks Sedimentary rocks Layered rocks seen in Grand Canyon that are only formed by wind and water 9 thus there is a potential for life on Mars Dept of Geography and Earth Sciences Divided into systems Atmosphere Water as a gas Hydrosphere Water as a liquid Biosphere Cryosphere Composed of solid water mars has one too Geosphere What we are standing on Geology A pretty recent science and uses physics chemistry and biology to answer questions Geology 9 Entire Geosphere Research Natural Resources Economic Impact Law Policy Technical Writing Science Teaching etc Background Catastrophism o Prevailed in the 17 and 18005 0 Earth s landscapes have been change primarily by great catastrophes 0 An attempt to constrain the age of the Earth into commonly accepted narrow time span I Catastrophes don t change a lot of things on the planet but they do change peoples lives Uniformitarianism Uniformity of processes 0 James Hutton The Father of Modern Geology 0 Published The Theory of the Earth 1794 o The Present is the Key to the Past 0 Earth has a very long history I Challenging to believe for a lot because it violated a lot of religious text Evidence for an ancient Earth Fossils A limestone rock over time is created by fossils or old shells Phanerozoic Eon Abundant of life Geology gt Physical or Historical Pluto was demoted to a dwarf planet because its orbital path is crossing one of another and a plant has a concentric orbit What are the 3 major physical driving forces for change on earth 1 External Heat The sun generates instability for the planet absorbing light and radiating heat Can precipitate condense or evaporate water If the sun didn t shine we wouldn t have weather 2 Weather Changes the Earths surface Moves erodes 3 Gravity Brings sediment water raindrops ice downhill Moves things around on a solid planet Plate Tectonics quotA Scientific Theory Unfolds Chapter 2 Gravity plays a role but is not the primary driving force on plate tectonics but the pressure from convection currents Heat plays a role in convection which makes pressure and so on This heat comes from the core of the Earth Question to appear on the test Which of the following would be considered a physical driving force for change on Earth a Meteorites b Cosmic Radiation c Weather d The Sun Answer d The Sun The major physical and driving forces External Heat Gravity Internal Heat 0 Impacts o Contraction Gets smaller as it cools and hardens concentrates the heat to the center the core begins to form 0 Radioactive Decay Starts to concentrate these particles together as it contracts I Major Isotopes Result is a very hot core Venus has an extremely hot core