Title: Get a notes packet from the back of the room'
110-16-07
- Get a notes packet from the back of the room.
- Make sure you have colored pencils.
- Sit down and insert notes packet into your binder
behind your convection current diagram
2Heat flows outward from Earth's interior. The
crust insulates us from Earth's interior heat.
The mantle is semi-molten, the outer core is
liquid and the inner core is solid.
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4New crust forms along mid-ocean spreading centers
and continental rift zones. When plates meet, one
can slide beneath another. Plumes of magma rise
from the edges of sinking plates.
5Thinned or fractured crust allows magma to rise
to the surface as lava. Most magma doesn't reach
the surface but heats large regions of
underground rock.
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9General Animations
- Sea Floor Spreading
- Plate Tectonics
- Savage Earth Plate Boundaries
- Plate Boundary Map
- http//www.wwnorton.com/college/geo/egeo/flash/2_1
.swf
10- Earth's Crust There are two different types of
crust thin oceanic crust that underlies the
ocean basins and thicker continental crust that
underlies the continents.
11- Divergent Boundary -- Oceanic
- Example
- Mid Atlantic Ridge
- Effects
- The Ridge is a high area compared to the
surrounding seafloor because of the lift from the
convection current below. - Sea Floor Spreading
12- Divergent Plate Boundary Continental
- Example
- The East Africa Rift Valley
- Animation 1 Animation 2
- Effect
- Rift valley sometimes occupied by a long linear
lakes or a shallow arm of the ocean.
13- Convergent Plate Boundary - Oceanic and
Continental Plates - Example
- Washington, Oregon Coast
- Effects
- The overriding continental plate is lifted up and
a mountain range is created
14- Convergent Plate Boundary Oceanic-Oceanic
- Example
- Aleutian islands and the Eastern Caribbean
islands of Martinique are examples of islands
formed through this type of plate boundary. - Effect
- Effects that are found at this type of plate
boundary include an oceanic trench, a chain of
volcanic islands, and the destruction of oceanic
lithosphere
15- Convergent Plate Boundary - Continental
- Example
- The Himalaya Mountain Range
- Animation
- Effects
- Effects found at a convergent boundary between
continental plates include intense folding and
faulting, a broad folded mountain range, shallow
earthquake activity.
16- Transform Plate Boundaries
- Example
- San Andreas Fault Zone, Alpine Fault of New
Zealand - Effects
- Recurring earthquake activity and faulting.
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