Download Document 8388027

CH 10 - EARTH SCIENCE
THERE WAS ONCE ONE
CONTINENT
SO WHY DO WE NOW HAVE
MANY CONTINENTS?
CHANGING OF PLATES
&
MOVEMENT OF CRUST
WHAT KIND OF
MOVEMENTS??
MAIN REASON
•
•
STRESS
THIS PROCESS IS
•
SLOW
THERE MUST BE
• PUSHING &
PULLING
NAME THAT STRESS
• PUSHING & PULLING
SIDEWAYS?
• SHEARING
NAME THAT STRESS
• CHANGING OR DESTRUCTION
OF AN?
• DEFORMATION
NAME THAT STRESS
• PUSHING OF TWO SIDES
TOGETHER?
• COMPRESSION
NAME THAT STRESS
• PULLING APART IN OPPOSITE
DIRECTIONS?
• TENSION
NAME THAT STRESS
• BREAKING OF THE
OBJECT…(LIKE YOUR LEG)?
• FRACTURE
FAULT
• STRUCTURE FORMED IN
AREA OF EARTH THAT IS
BREAKING APART
FAULTS
• THE SIDE OF THE BREAK
THAT STAYS IN PLACE?
• FOOTWALL
FAULTS
• THE SIDE OF THE BREAK
THAT MOVES?
• HANGING WALL
NAME THAT FAULT
• HANGIING WALL SLIDES
DOWN?
• NORMAL FAULT
NAME THAT FAULT
• HANGIING WALL PUSHES UP?
• REVERSE FAULT
NAME THAT FAULT
• WALLS DO NOT MOVE UP OR
DOWN… THEY TEAR ACROCC
NORTH TO SOUTH?
• LATERAL FAULT
NAME THAT FAULT
•
•
________
______I
I_______
• FAULT BLOCK MOUNTAIN
NAME THAT FAULT
•
•
______
_______
I_____I
• RIFT VALLEY
NAME THAT FAULT
• ____
_____
_____
•
I_____I
I_____I
• FOLDING CAUSED BY
PRESSURE
NAME THAT FAULT
•
•
•
•
•
•
ANT.
ANT.
ANT.
____
_____
_____
I_____I
I_____I
SYN.
SYN.
ANTICLINE- TOP
SYNCLINE- BOTTOM
FAULT OR FOLD?
• WHEN HEATED MELT LIKE
CRAYONS?
• FOLD
FAULT OR FOLD?
• ROCK IS COOL AND SNAPS?
• FAULT
FAULT OR FOLD?
• ROCK IS BRITTLE?
• FAULT
FAULT OR FOLD?
• QUICK STRESS?
• FAULT
FAULT OR FOLD?
• ELASTIC?
• FOLD
FAULT OR FOLD?
• SLOW PROCESS?
• FOLD
FAULT OR FOLD?
• PRESSURE?
• FOLD
DOME
• UPLIFTED AREA CAUSED BY MAGMA
ISOSTASY
• BALANCE BETWEEN 2 AREAS
• EXISTS BETWEEN THE MANTLE AND
THE CRUST
ISOSTASY
• CRUST MOVES ON LAYER OF MAGMA
MOVING SLOWLY LIKE MOLASSES
ISOSTASY
• EXPERIMENT PAGE 342