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Earth Systems & Resources

Earth Systems & Resources. Lucas Lemons 5 th period APES. Rock Cycle. Three main types of rocks: Metamorphic, igneous, and sedimentary Metamorphic are made from large amounts of heat and pressure (slate and marble) Igneous rock is formed from the cooling of magma (granite and basalt)

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Earth Systems & Resources

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  1. Earth Systems & Resources Lucas Lemons 5th period APES

  2. Rock Cycle • Three main types of rocks: Metamorphic, igneous, and sedimentary • Metamorphic are made from large amounts of heat and pressure (slate and marble) • Igneous rock is formed from the cooling of magma (granite and basalt) • Sedimentary rock is made from the piling of materials over time (sandstone, shale, limestone)

  3. Soil Erosion • Soil erosion is when weathered rock or soil moves from one place to another • This type of erosion destroys the soil profile and the water-holding capacity • Many farming techniques such as, monocultures and overgrazing leads to soil erosion • Common types of soil erosion include: Sheet erosion, Rill erosion and Gully erosion • Desertification, Salinization and Waterlogging are all caused by soil erosion

  4. Soil Erosion Images Sheet erosion Rill erosion Gully erosion

  5. Geological Time Scale • There are two types of time scales to measure the age of earth • The first type is a relative time scale that is based of layers of rock and the evolution of organisms • The second type is the radiometric which is based on the radioactivity of chemicals in rocks

  6. Geological Time Scale Image

  7. External Links • http://www.eo.ucar.edu/kids/green/cycles1.htm • http://www.cotf.edu/ete/modules/msese/earthsys.html

  8. Video Link • https://www.youtube.com/watch?v=G5Rp9MJJGCU • https://www.youtube.com/watch?v=SY3MZ_wNFW8

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