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10-16-0710-16-07

1.Get a notes packet from the back of the room.

2.Make sure you have colored pencils.

3.Sit down and insert notes packet into your binder behind your convection current diagram

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Heat 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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New 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.

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Thinned 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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When the rising hot water and steam is trapped in permeable and porous rocks under a layer of impermeable rock, it can form a geothermal reservoir.

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When hot water and steam reach the surface, they can form fumaroles, hot springs, mud pots and other interesting phenomena.

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Many areas have accessible geothermal resources, especially countries along the circum-Pacific "Ring of Fire," spreading centers, continental rift zones and other hot spots.

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General AnimationsGeneral Animations

1.1. Sea Floor SpreadingSea Floor Spreading2.2. Plate TectonicsPlate Tectonics3.3. Savage Earth Plate BoundariesSavage Earth Plate Boundaries4.4. Plate Boundary MapPlate Boundary Map

5.5. http://www.wwnorton.com/chttp://www.wwnorton.com/college/geo/egeo/flash/2_1.swollege/geo/egeo/flash/2_1.swff

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Earth's Crust:Earth's Crust:   There are two   There are two different types of crust: thin oceanic different types of crust: thin oceanic crust that underlies the ocean basins crust that underlies the ocean basins and thicker continental crust that and thicker continental crust that underlies the continents.underlies the continents.

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Divergent Boundary -- OceanicDivergent Boundary -- Oceanic ExampleExample

Mid Atlantic RidgeMid Atlantic Ridge

EffectsEffects The Ridge is a high area compared to the The Ridge is a high area compared to the

surrounding seafloor because of the lift from surrounding seafloor because of the lift from the convection current below.the convection current below.

Sea Floor SpreadingSea Floor Spreading

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Divergent Plate Boundary – ContinentalDivergent Plate Boundary – Continental

Example Example The East Africa Rift ValleyThe East Africa Rift Valley AnimationAnimation 1 1 Animation 2Animation 2

EffectEffectRift valley sometimes occupied Rift valley sometimes occupied by a long linear lakes or a by a long linear lakes or a shallow arm of the ocean.shallow arm of the ocean.

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Convergent Plate Boundary - OceConvergent Plate Boundary - Oceanic and Continental Platesanic and Continental Plates

ExampleExample Washington, Oregon CoastWashington, Oregon Coast

EffectsEffects The overriding continental The overriding continental plate is lifted up and a plate is lifted up and a mountain range is createdmountain range is created

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Convergent Convergent Plate Boundary – Oceanic-OceanicPlate Boundary – Oceanic-Oceanic

ExampleExample Aleutian islands and the Eastern Caribbean Aleutian islands and the Eastern Caribbean

islands of Martinique are examples of islands islands of Martinique are examples of islands formed through this type of plate boundary.formed through this type of plate boundary.

EffectEffect Effects that are found at this type of plate Effects that are found at this type of plate

boundary include: an oceanic trench, a chain boundary include: an oceanic trench, a chain of volcanic islands, and the destruction of of volcanic islands, and the destruction of oceanic lithosphereoceanic lithosphere

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Convergent Plate Boundary - ContineConvergent Plate Boundary - Continentalntal

ExampleExample The Himalaya Mountain Range The Himalaya Mountain Range AnimationAnimation

EffectsEffects Effects found at a convergent boundary Effects found at a convergent boundary

between continental plates include: between continental plates include: intense folding and faulting, a broad intense folding and faulting, a broad folded mountain range, shallow folded mountain range, shallow earthquake activityearthquake activity..

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Transform Plate BoundariesTransform Plate Boundaries ExampleExample

San Andreas Fault Zone, Alpine FauSan Andreas Fault Zone, Alpine Fault of New Zealandlt of New Zealand

EffectsEffects Recurring earthquake activity and Recurring earthquake activity and

faulting.faulting.

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