Continental to Oceanic Destructive Plate Margins

Question 1

Stage 1

Answer 1

Nazca plate moves west oeast due to convection currents in asthenosphere
Nazca is subducted under South America plate

Question 2

Stage 2

Answer 2

Peru-Chile trench runs parallel to Western coast of South America on ocean floor marking zone of subduction

Question 3

Stage 3

Answer 3

Benioff Zone is the boundary between the oceanic plate and overriding continental plate

Sloping plane of shallow intermediate and deep earthquakes

Question 4

Stage 4

Answer 4

Denser oceanic plate subducted 600km into asthenosphere
magma created
Rises beneath continental crust

Question 5

Stage 5

Answer 5

Fold mountains (Andes) form because of a combo of volcanic activity (Nevado del Ruiz in Colombia) and buckling of sedimentary rock as edge of continental plate is pushed upwards

Question 6

Draw a oceanic to continental plate boundary

Answer 6

yes