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DRAFT 04/ 07/2000 ESW 2000 Rock Cycle MI DEQ GSD - SEW
The Rock Cycle Middle School Science Nature and Technology - Changing the Earth DRAFT 04/ 07/2000 ESW 2000 Rock Cycle MI DEQ GSD - SEW SCoPE SC070504 1
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The eminent 18th century lawyer, doctor, gentleman farmer and founder of modern geoscience, James Hutton, developed the concept of the Rock Cycle to show how rocks and natural, physical processes are interrelated. Radioactive heating from inside the earth, as well as solar energy and gravity at the surface drives the rock cycle. As a result, the rock cycle will be self-sustaining for thousands of millions of years.
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What is the Rock Cycle ? The rock cycle is a sequence of events involving the formation, alteration, destruction, and reformation of rocks as a result of natural processes such as magmatism (melting of rock into magma), erosion, transportation, deposition, lithification, and metamorphism. Glossary of Geology, Bates & Jackson, AGI
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The mantle, crust and surface of the earth can be thought of as a giant recycling machine;
rocks are neither created nor destroyed, but redistributed and transformed from one rock type to another. March 2000
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Middle School Science Nature and Technology - Changing the Earth The Rock Cycle involves the recognition of three main classes of rocks The three rock types are … SCoPE SC070504 6
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CEMETERY Sedimentary Rocks Metamorphic Rocks METABOLIC Igneous Rocks INGENIOUS Right?
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Before we look at the Rock Cycle in more detail,
let’s review some basic information …
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Atoms combine to make compounds that combine to make minerals.
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Minerals are naturally occurring inorganic elements or compounds
having an orderly internal structure and a characteristic chemical composition, crystal form and physical properties
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Minerals combine to form Rocks
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Rocks and Natural Processes make up the Rock Cycle
weathering Metamorphic Sedimentary melting pressure, heat Igneous
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The Rock Cycle weathering Sedimentary Metamorphic Igneous Rocks are weathered eroded, transported and deposited to form Sedimentary Rocks
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The Rock Cycle melting Sedimentary Metamorphic Igneous Igneous Rocks form from molten rock or magma in the subsurface or from lava extruded at the surface
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The Rock Cycle pressure, heat Sedimentary Metamorphic Igneous Pressure, heat and fluids cause preexisting materials to become Metamorphic Rocks
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The Rock Cycle weathering melting pressure, heat Sedimentary Metamorphic Igneous The Rock Cycle does not go in just one direction. Any given rock can go through any part of the cycle any number of times.
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I hope you better understand the Rock Cycle and what it means.
weathering melting pressure, heat Sedimentary Metamorphic Igneous I hope you better understand the Rock Cycle and what it means.
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