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Guided Notes on the Theory of Plate Tectonics

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Presentation transcript:

https://www.youtube.com/watch?v=WwiiOjyfvAU

Types of Boundaries – Convergent Plates come together Denser oceanic crust, is subducted under the lighter continental crust. Island Arc Volcanic mnt. Range Folded mnt. range Trench Subduction Zone

Folded Mnt. Range Island Arch/ Volcano mnt. Range The Aleutian Islands

Types of Boundaries – Divergent Plates pull apart to allow new crust to emerge continental crust pulls apart = forms a rift valley oceanic crust pulls apart = forms a ocean ridge Atlantic Ocean grows about 2-3 cm/y

Rift Valley Ocean Ridge

Types of Boundaries – Transform Plates move horizontally past each other, causing crust to deform or fracture Characterized by faults

There are two type of Faults: 1. Strike Slip: two pieces of land move horizontally

There are two type of Faults: 2. Reverse: two pieces of land move vertically

San Andres Fault

https://www. youtube. com/watch https://www.youtube.com/watch?v=Fl5 akWTMLZY&list=PLel7mMBQDlJozx8VLV CqhdUhdGsRbVIsZ&index=3 https://www.youtube.com/watch?v=S_ wYePHcvLM&index=9&list=PLel7mMBQ DlJozx8VLVCqhdUhdGsRbVIsZ

Labels Volcanic Arch (x2) Oceanic Trench Subduction/Gravity Pull (x2) Folded Mountain Range Divergent Plate Boundary Convection Oceanic Crust Convergent Plate Boundary (x2) Continental Crust Magma