Download CONVERGENT BOUNDARIES

NOTES: PLATE BOUNDARIES
TYPE OF
BOUNDARY
PICTURES / DIAGRAMS OF BOUNDARY
PLACES BOUNDARIES
CAN OCCUR & DIRECTION OF PLATES
LANDFORMS
CREATED
& EXAMPLES
CREATE OR
DESTROY
LITHOSPHERE?
KEY VOCAB WORDS
ASSOCIATED WITH BOUNDARY
OC + OC
Subduction Zones
OC + CC
Trenches
CONVERGENT
BOUNDARIES
3 TYPES OF
CONVERGENT
BOUNDARIES
Volcanic Arcs
CC + CC
Ridges
(deep oceanic ridges)
DIVERGENT
BOUNDARIES
Continental Rifting
2 TYPES OF
CONVERGENT
BOUNDARIES
Rift Valley
Seismic Waves
Epicenter
TRANSFORM
BOUNDARY
Earthquake
NOTES: PLATE BOUNDARIES
TYPE OF
BOUNDARY
PICTURES / DIAGRAMS OF BOUNDARY
PLACES BOUNDARIES
CAN OCCUR
LANDFORMS
CREATED
& EXAMPLES
Oceanic Crust|Oceanic Crust
Volcanic Island
Arcs
OC + OC
EX: Tonga island arc
Japan, Philippines,
Mariana island arc
CREATE OR
DESTROY
LITHOSPHERE?
KEY VOCAB WORDS
ASSOCIATED WITH BOUNDARY
OC + OC
OC + CC
CONVERGENT
BOUNDARIES
Oceanic Crust|Continental Crust
3 TYPES OF
CONVERGENT
BOUNDARIES
OC + CC
Continental
Volcanic Arcs
When
EX: Andes
lithosphere
Mountains,
subducts into
Mt. Rainier, Mt. St.
mantle, it is
Helens, Mt. Shasta
melted by
(Cascade Mountains)
asthenosphere
CC + CC
Continental Crust|Continental Crust
CC + CC
DESTROYS
Lithosphere
Collision
Mountains
EX: Appalachian
Mountains, Alps,
Urals, Caledonians,
Himalayas
Subduction Zones
When one plate subducts (goes
under) under another
Trenches
Trenches form at site of
subduction & usually form
parallel to volcanic arcs
Volcanic Arcs
Chain of volcanoes formed
above subducting plate,
positioned in an arc shape,
adjacent to converging plates
Oceanic Crust|Oceanic Crust
OC – OC
Under the ocean
(two oceanic plates splitting apart)
DIVERGENT
BOUNDARIES
2 TYPES OF
CONVERGENT
BOUNDARIES
Two oceanic plates
pull apart from each
other, magma rises
& cools creating new
seafloor.
Ex: Mid-Atlantic
Ridge
Continental
Rifting
Continental Crust|Continental Crust
CC – CC
Two continental plates separate
Under the ocean
(two oceanic plates sliding past each
other)
TRANSFORM
BOUNDARY
Deep
Oceanic Ridges
Along a continent
(two continental plates sliding past
each other)
Transform faults connect all of the
plate boundaries around the world.
They join all of the world’s active belts
into a continuous system
Two continental
plates pull apart
from each other, &
the rising magma
burns through the
lithosphere creating
a rift valley.
Ex: East African Rift
Valley, Red Sea
CREATES
New
Lithosphere
Created as
rising magma
cools to make
new sea floor
or land.
Fault lines
crack in the earth's
crust resulting from
displacement of one
plate with respect
to another
Ex: Mendocino fault
– connects the Juan
de Fuca plate with
the Cascadian
subduction zone.
NEITHER
creates or
destroys
Ridges
(deep oceanic ridges)
Underwater mountain ranges
where crust is spreading apart
creating new ocean floor
Continental Rifting
The process that causes
continental crust to extend and
thin.
Rift Valley
deep valley formed on land
where two plates move apart
and magma rises to Earth's
surface
Seismic Waves
vibrations that travel through
Earth carrying the energy
released during an earthquake
Epicenter
Point on Earth's surface directly
above an earthquake's focus
Earthquake
sudden and violent movement
or trembling of ground caused
by release of energy when
plates along a fault slide past
one another, movements within
the earth's crust or volcanic
action