Np complete
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![Page 1: Np complete](https://reader035.fdocuments.in/reader035/viewer/2022062418/5558f6cad8b42ac04d8b47ae/html5/thumbnails/1.jpg)
IGNEOUS ROCKSIGNEOUS ROCKS
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Where Does Igneous Rock Form?
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I. FORMATION OF IGNEOUS
ROCKS
I. FORMATION OF IGNEOUS
ROCKS
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A. Igneous rocks form
directly from the _____________
and_____________
A. Igneous rocks form
directly from the _____________
and_____________
solidificationsolidification
crystallizationcrystallization
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of _____molten rock to form_______ rock
of _____molten rock to form_______ rocksolidsolid
liquidliquid
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FOUNTAINING
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FISSURE ERUPTION
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LAVA FLOW
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LAVA FLOW OVER A ROAD
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LAVA FLOW THROUGH FORREST
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Kilauea, HI2003
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Kilauea, HI , 2003
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Mt. ST. Helens
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Volcanic crater
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crazy vulcanist
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SKY LIGHT
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B. _____________is the process
when a liquid rock cools,
B. _____________is the process
when a liquid rock cools,
crystallizationcrystallization
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and it changeschanges to a solid made of
___________________
and it changeschanges to a solid made of
___________________
INTERGROWN CRYSTALS INTERGROWN CRYSTALS
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GRANITE MICROSCOPIC VIEW
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2. CLASSIFICATION OF IGNEOUS ROCKS:2. CLASSIFICATION OF IGNEOUS ROCKS:
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A. 2 characteristics that are used to classify igneous
rocks:
A. 2 characteristics that are used to classify igneous
rocks:
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1. ______________
2. ______________
1. ______________
2. ______________
texturetexture mineralcomposition mineralcomposition
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B. Texture ofan
igneous rockdescribes the
B. Texture ofan
igneous rockdescribes the
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_________,__________
and ____________ of
the mineralcrystals it was
made from.
_________,__________
and ____________ of
the mineralcrystals it was
made from.
sizesizeshapeshape
arrangementarrangement
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C. The ______ of the crystals
depends on the
_______________________
C. The ______ of the crystals
depends on the
_______________________
sizesize
Rate of Rate of coolingcooling
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Slow cooling =
____________
Slow cooling =
____________large crystalslarge crystals
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MINERAL CRYSTALS
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GABBRO
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Fast cooling =
____________
Fast cooling =
____________fine crystalsfine crystals
Or no crystals (glassy)
Or no crystals (glassy)
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GLASSY TEXTURE: OBSIDIAN
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BASALT: FINE CRYSTALS
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BASALT MICROSCOPIC VIEW
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Granite:Coarsecrystals
Basalt:Finecrystals
(Microscopic views)
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FINE CRYSTAL: RYOLITE
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3. EXTRUSIVE IGNEOUS ROCKS:
3. EXTRUSIVE IGNEOUS ROCKS:
A. _____________ occurs when molten (liquid) rock flows out of the earth as
________________
A. _____________ occurs when molten (liquid) rock flows out of the earth as
________________
ExtrusionsExtrusions
lavalava
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lava
magma
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And cools __________quickly
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to formfine or no____________
to formfine or no____________ crystals crystals
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gas pockets
Vesicular basalt
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This rock if full of gas pockets
frothy texture (vesicular)
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B. To form magma, ____________ must be melted.
B. To form magma, ____________ must be melted.
mineralsminerals
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C. Minerals melt at different
____________ and ___________
C. Minerals melt at different
____________ and ___________
temperaturestemperaturespressurespressures
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D. Igneous rocks of different
____________
D. Igneous rocks of different
____________
compositioncomposition
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Can form from the same body of ____________
Can form from the same body of ____________
magmamagma
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4. INTRUSIVE IGNEOUS ROCKS:
4. INTRUSIVE IGNEOUS ROCKS:
A. _____________ occurs when molten
rock beneath the surface
A. _____________ occurs when molten
rock beneath the surface
IntrusionsIntrusions
(magma) (magma)
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cools ____________to form_____________
cools ____________to form_____________
slowlyslowly
coarse crystals coarse crystals
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Granite:Coarsecrystals
Basalt:Finecrystals
(Microscopic views)
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5. FELSIC5. FELSICA. Igneous rocks of the continental crust are rich in
_________ density_________ coloredminerals
A. Igneous rocks of the continental crust are rich in
_________ density_________ coloredmineralslowlowlightlight
(granitic)(granitic)
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6. MAFIC6. MAFICA. Igneous rocks of the ocean floor are rich in
_________ density_________ coloredminerals
A. Igneous rocks of the ocean floor are rich in
_________ density_________ coloredmineralshighhighdarkdark
(basaltic)(basaltic)
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Comparing Oceanic Crust To Continental Crust
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Continental Crust:1.2.3.4.5.
Continental Crust:1.2.3.4.5.
low densitylow densitylight colorlight color
felsicfelsicgraniticgranitic
thickthick
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Oceanic Crust:
1.2.3.4.5.
Oceanic Crust:
1.2.3.4.5.
high densityhigh densitydark colordark color
maficmaficbasalticbasaltic
thinthin
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Complete the Activity
Complete the Activity
Use this diagram in your ESRT to answer the following:
What is the temperature for the interface between
the following… inner core and outer core? 6250° COuter core and stiffer mantle? 5000° C Stiffer Mantle and athenosphere? 2600° C Asthenosphere and lithosphere? 750° C
Use this diagram in your ESRT to answer the following:
What is the temperature for the interface between
the following… inner core and outer core? 6250° COuter core and stiffer mantle? 5000° C Stiffer Mantle and athenosphere? 2600° C Asthenosphere and lithosphere? 750° C
![Page 68: Np complete](https://reader035.fdocuments.in/reader035/viewer/2022062418/5558f6cad8b42ac04d8b47ae/html5/thumbnails/68.jpg)
What is the depth of the interface between the stiffer mantle and the outer core? 2900 KM
State the relationship between depth
and pressure :As depth increase pressure increases
State the relationship between depth and temperature:
As depth increases temperature increases
What is the depth of the interface between the stiffer mantle and the outer core? 2900 KM
State the relationship between depth
and pressure :As depth increase pressure increases
State the relationship between depth and temperature:
As depth increases temperature increases
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MELTING ROCKS AND CRYSTALLIZING MAGMARock magma magma rock
When rocks melt, bonds broken.
Crystalline solid no longer exists.
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MELTING ROCKS AND CRYSTALLIZING MAGMARock magma magma rock
•Hot liquid contains still solid fragments
•Minerals melt at different temperatures
•Melting causes changes in magma composition
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MELTING ROCKS AND CRYSTALLIZING MAGMARock magma magma rock
•Cooling of hot liquid allows crystallization of minerals
•Bonds are re-established
•Crystalline structure grows until edges touch adjacent crystals
•Minerals crystallize at different temperatures
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OK………..TAKE OUT
YOUR REFERENCE
TABLE
OK………..TAKE OUT
YOUR REFERENCE
TABLE
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