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Name: _jack laber_______________________________________________________GEOL 1010 – Section 002Homework Assignment 1Due Date: September 2, 2021 11:59PMPart I: What is the Rock Cycle?On the diagram below, complete the rock cycle flow chart using arrows to show how each material/product in the boxes transforms from one to the other. The different processes are listed on page 2. Some processes on pp. 2 are missing definitions which you will be filling in in Part II. In other words, what process turns magma into igneous rock? Think of ALL the processes that can occur. If you can, use a different color for each rock type and process (see pp. 2), draw arrows between the products to represent the processes. Label the arrows with the appropriate process(es) using the text function. Don’t forget the transformations or processes that result in the same product (15 points). Red: melting Blue: cooling Pink: heat/pressure Black: erosion/weather Purple: cementation1MagmaSedimentSedimentaryRockIgneousRockMetamorphicRockName: _jack laber_______________________________________________________Part II: Definitions: Please fill in the missing definitions. You can fill in the table or use the next page (5 points).Process(es) Textbook pg. Whathappens?BURIAL (deep)Rocks are buried by the deposition of younger, overlying rocks, or by plate tectonic processes. Associated with METAMORPHISM.BURIAL (shallow)Rocks are buried by the deposition of younger, overlying rocks. Associated with COMPACTION and CEMENTATION.CEMENTATION Chapter 5Define: the binding together of particles or other things by cementCOMPACTION Ch. 5The deposition of rock layers above puts pressure on deeper sediments, causing the grains to be pushed closer and closer together, and reducing pore space between sedimentary grains.CRYSTALLIZATION Chapter 4Define: the process in which crystals are formed either from something that has been melted or from a solutionDEPOSITION Sediments cease moving, and are buried by other sediments.ERUPTION Chapter 4Magma erupts into the atmosphere or water at Earth’s surface, transforming into solid (igneous) rock. Elements and molecules in the magma combine into distinct mineral crystals.EROSION Chapter 5Define: the process of eroding or being eroded by wind, water, or other natural agentsEXHUMATIONSolid rocks (formerly buried deep under the Earth’s surface) are broughtto the surface by the removal of overlying rocks.MELTING Chapter 4Define: becoming liquified by heatMETAMORPHISM Chapt. 6Increased heat and/or pressure, associated with DEEP BURIAL and/or contact with hot magma. Rock is NOT melted, but elements and molecules can recombine to form new minerals while the rock remains in a solid state.SUBDUCTION Chapt. 9Define: the sideways and downward movement of the edge of a plate of the earths crust into the mantle beneath another plateWEATHERING Chapt. 5Breakdown of rocks at the Earth’s surface into smaller fragments of thesame composition and/or chemically altered into different minerals, orelements and molecules (all called sediments).2Name: _jack laber_______________________________________________________Definitions: Only fill in the table on page 2 or use this page.Cementation:Crystallization:ErosionMelting:Subduction: 3Name: _jack laber_______________________________________________________Part III: A. Layers of the Earth: Please fill in this table about the major chemical layers of the Earth (for chemical layers, only the chemical composition matters, not whether its solid or liquid). Go in order, from the center to the surface or vice versa when completing the table. State one additional fact observation or characteristic about each major layer (9 points). Layer Composition Additional Fact/Observation?1. Mantle MagnesiumIronOxegynCalciumAluminumsiliconThe mantle makes up about 84% of earths volume.2. Crust OxegynSiliconAluminumIroncalciumThe deepest areas of earths crust are located in mountainous areas.3. Core IronNickelEarth’s core is very hot due to frictionalheating.B. What are the major physical layers of the Earth (for physical layers, the layers are differentiated by strong or weak, solid or liquid state, density) (3 points)?- Geosphere- Lithosphere- Mesosphere- Asthenosphere-4Name: _jack laber_______________________________________________________Part IV: General Questions:1. State two differences between the oceanic crust and the continental crust. Expand, in 1 or 2 sentences) on one of those differences (5 points).The oceanic and continental crusts have very different thickness’s. the oceanic crust is about 5-10 km thick, whereas the continental crust is 30-50 km thick. This id due to the plate boundaries in the oceanic crust, usually being destroyed.2. List the geologic eons from youngest to oldest (2). PhanerozoicProterozoicArcheanhadeon3. In what geological era do we live (1)?We live in the Holocene era


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CU-Boulder GEOL 1010 - Homework Assignment 1

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