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The Rock Cycle

Unit test that answers all metamophic and igneous rock I cans...
by

Nayeli Andrade

on 10 March 2011

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Transcript of The Rock Cycle

Igneous The Rock Cycle Metamorphic Sedimentary Rocks Rocks Rocks Starts with: Which form when: Magma/Lava Cools &... Two Kinds: Crystallizes Intrusive: Extrusive: -Form underground. -Form aboveground. Intrusive rocks are: -Fine grained/ Glassy/ Vesicular
-Crystalls don't have time to form Extrusive rocks are: - Coarse grained
-Crystals have time to form Also classified as: Mafic Felsic -Dark
-Form first -Light
-Form last Large Crystals: Partial Melting: Fractional Crystallization: Partial Melting Fractional Crystallization - Some minerals melt before others
-Lower melting point= melting first -Some minerals also crystallize before others
-Lower melting point= crystallizes last Identification: Also: -Porphyritic= Large & small crystals Weathering (Sediments) sediments, sediments, sediments, sediments, sediments, sediments, sediments, sediments, sediments sediments, sediments, sediments, sediments, sediments, sediments, sediments, sediments, sediments sediments, sediments, sediments, sediments, sediments, sediments, sediments, sediments, sediments Rounding Sorting Clastic Biochemical Chemical -Pieces of rocks
cemented together -Pieces of once living things
-Shells -Evaporate from solutuion Identification: ????????????? Form Underground from: Heat layers of earth, layers of earth, layers of earth, layers of earth, layers of earth, layers of earth, layers of earth, layers of earth, layers of earth, layers of earth, layers of earth, layers of earth, Pressure layers of earth, layers of earth, layers of earth, layers of earth, Two Grades of Metamorphism: Low-Grade Metamophism: High-Grade Metamorphism: -Low heat
-Low pressure -High heat
-High pressure Three Kinds of Metamorphism: Regional Metamorphism: Hydrothermal Metamorphism: Contact Metamorphism: -Large areas of land change, usually when landmasses collide -Hot water creates the heat and pressure needed for metamorphism -Rock intrudes into earth and comes into contact with hot magma Identification: Foliated Nonfoliated Large clear crystals= Marble Metamorphosed sandstone= Quartzite Coarse grained Fine grained Banded into light and dark= Gneiss Completely Intermixed=
Schist Weak sheets, shiny=
Phyllite Thin sheets, dark=
Slate Starts all over again...
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