Rocks & The Rock Cycle... • ALL TYPES OF ROCKS CAN BE CHANGED INTO IGNEOUS ROCK BY MELTING & COOLING OF ANY ROCK... • FORMED WHEN ROCKS ARE WEATHERED AND ERODED , SEDIMENTS COMPACT AND
Trang 1Rocks & The Rock Cycle
Trang 2– INORGANIC SOLID – HAVE CRYSTALS
– NOT MADE OF ROCKS – HAS A DEFINITE
CHEMICAL MAKEUP
Trang 3Rocks vs Minerals
• MINERALS ARE CLASSIFIED BY
– CHEMICAL COMPOSITION
Trang 4-TEXTURE=sizes, shapes and positions
of grains in the rocks
Trang 7• FORMED WHEN MAGMA or LAVA COOLS AND
HARDENS (SOLIDIFIES)
• 2 TYPES
– INTRUSIVE
• MAGMA COOLS SLOWLY
BENEATH EARTH’S SURFACE
Trang 8• ALL TYPES OF ROCKS CAN BE
CHANGED INTO IGNEOUS ROCK BY
MELTING & COOLING OF ANY ROCK
Trang 9•KEY
and COOLING
Trang 10• FORMED WHEN ROCKS ARE
WEATHERED AND ERODED , SEDIMENTS COMPACT AND CEMENT SOLID ROCK
Trang 11• ALL TYPES OF ROCKS CAN BE CHANGED
INTO SEDIMENTARY ROCK BY
-WEATHERING, EROSION, & SEDIMENTS COMPACTING & CEMENTING TOGETHER
Trang 12Sedimentary Rocks
KEY WORDS
WEATHERING and
EROSION COMPACTING and
CEMENTING
Trang 13FORMED WHEN EXISTING ROCK IS
CHANGED INTO NEW ROCK BY THE
HEATING OF THE ROCK AND PRESSURE FROM OTHER ROCKS AROUND IT.
• 2 TYPES
– FOLIATED
• CRYSTALS ALIGNED
IN LAYERS – NON-FOLIATED
• CRYSTALS ARRANGED
IN RANDOM MANNER
Trang 14• ALL TYPES OF ROCKS CAN BE
CHANGED INTO METAMORPHIC ROCK
BY HEAT AND PRESSURE
Trang 15•HEAT and PRESSURE
•KEY WORDS
Trang 16Rock Cycle Animations
• You choose the path
• Rocks forming
Trang 17THE ROCK CYCLE
• One of the cycles of
nature that continually
recycles rocks &
materials that make up
Trang 19THE ROCK CYCLE
Slate(m)
Gneiss
(m)
Schist(m)
Phyllite(m)
Shale(s)Siltstone
(s)
Trang 20THE ROCK CYCLE
Trang 21The color of rocks
Trang 22The ROCK CYCLE
• Rock Cycle Diagram
Trang 23sandstonesiltstoneshale