ROCKS.

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Rocks and the Rock Cycle

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Presentation transcript:

ROCKS

USES ELECTRICITY CONSTRUCTION FLOORING MONUMENTS COARSE SOAP ROADS CHEWING GUM!!!

CHARACTERISTICS NATURAL SOLID MIX OF MINERALS/GRAINS CHANGE DUE TO EARTH’S PROCESSES CLASSIFY -TEXTURE: SIZE AND ARRANGEMENT OF GRAINS AND FORMATION -COMPOSITION: TYPE OF MINERALS/GRAINS IN ROCK

ROCK TYPES IGNEOUS -MAGMA/LAVA COOLS AND CRYSTALLIZES SEDIMENTARY -SEDIMENT (BREAKING DOWN OF ROCKS DUE TO EARTH’S FORCES) IS ADDED TO LANDFORM METAMORPHIC -EXPOSED TO HIGH TEMPS AND PRESSURE

ROCK CYCLE ONE ROCK CAN CHANGE INTO ANOTHER ROCK DUE TO FORCES ON EARTH’S SURFACE AND WITHIN EARTH LAYERS http://www.classzone.com/books/earth_science/terc/content/investigations/es0602/es0602page02.cfm

IGNEOUS LAVA COOLS FORMS SMALL CRYSTALS (EXTRUSIVE) MAGMA COOLS FORMS LARGE CRYSTALS (INTRUSIVE) I.D. -CRYSTAL SIZE -MINERAL CONTENT AFFECT COLOR

SEDIMENTARY SEDIMENT DEPOSITS ARE COMPACTED AND CEMENETED TOGETHER FROM EROSION AND WEATHERING I.D. -CLASTIC (BROKEN PIECES OR ROCK/MINERAL) SIZE AND SHAPE -CHEMICAL (DISOLVING MINERALS FROM WATER) -BIOCHEMICAL (FOSSILS)

METAMORPHIC CHANGE DUE TO PRESSURE AND HEAT I.D. -FOLIATED (FLAT LAYERS OF MINERALS) -NONFOLIATED (RANDOM ARRANGEMENT OF MINERALS)