Transcript The Rock Cycle

Homeroom Warm Up
11-3-2014
November 3rd is
“National
Sandwich Day.”
Use a paragraph
to describe your
favorite type of
sandwich.
Academic Enrichment
Warm Up
11-3-14
Which of these is a characteristic of a
mineral?
a. It has a noncrystalline structure
b. It exists in a liquid state
c. It is a natural substance
d. It has a varying chemical composition
Science Warm Up
11-3-14
The way a mineral reflects light is called its
a.
b.
c.
d.
Texture
Cleavage
Luster
streak
Homework
Diagram of the rock cycle on a poster board
with the 3 types of rocks and all the
processes that drive the cycle. Due
Thursday 11/6/14 worth 200 pts
rGLE 0707.7.2 Summarize the
basic events that occur during
the rock cycle.
ocks
Rocks
A rock is a naturally occurring solid mixture of one or more
minerals and organic matter.
It might be hard to believe but rocks are always changing…..
Which rock will
it stay?
Can you
Figure it Out?
From One Rock to another
On a RECYCLING
Route
But never in a hurry
The Rock Cycle
Igneous
metamorphic
Sedimentary
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
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.
http://www.science.ubc.ca/~geol202/rock_cycle/rockcycle.html March 2000
The Rock Cycle involves the
recognition of three main
classes of rocks.
The three rock types are …
Sedimentary
CEMETERY
Rocks
Metamorphic
METABOLIC
Rocks
Igneous
INGENIOUS
Rocks
Right?
Minerals combine to form Rocks
Some Rocks are made up of just one
mineral - like rock
the mineral halite)
salt (made up of
Others Rocks are made up of many
minerals - like the granites and
gneisses (made up of feldspars,
quartz, and other minerals)
Rocks and Natural Processes
make up the
Rock Cycle
weathering
Sedimentary
Igneous
Metamorphic
The Rock Cycle
Igneous
Igneous means “born of
The Rock
Cycle
Metamorphic
Sedimentary
Igneous
Igneous
Rocks
form from
molten rock or
magma cooling
in the
subsurface or
from lava
extruded at
the surface
But then the
EARTH’S
elements
Won’t leave
The poor rock alone!
•Ice
•wind
•Water
ice
wind
water
They break up the stone
The Rock
Cycle
weathering
Sedimentary
Metamorphic
Rocks are
weathered
eroded,
Compacted
and cemented
form
Sedimentary
Rocks
Igneous
Some common sedimentary
rocks are Sandstone,
shale,
limestone,
halite, and
gypsum
The Rock Cycle
Igneous
metamorphic
?
Sedimentary
hOT!
The Rock
Cycle
Metamorphic
Sedimentary
Igneous
Heat & Pressure
and fluids
cause
preexisting
materials to
become
Metamorphic
Rocks
iron ore,
staurolite schist,
slate,
quartzite,
marble and
gneiss
The Rock
weathering
Sedimentary
Igneous
Cycle
Metamorphic
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.
The Rock Cycle
Igneous
metamorphic
Sedimentary
always changing…
Science Closure 11-3-14
Which best describes one way igneous rocks form?
A. Sedimentary rocks erode.
B. Sedimentary rocks are compacted.
C. Metamorphic rocks are melted, then cooled.
D. Metamorphic rocks are deposited and
cemented.