Marking your Boundaries!!

Welcom

e to…

QUESTION 1:At what sort of plate boundary would you find an ocean ridge?

(2 points)

BONUS QUESTION 1(A):Name an example of an ocean ridge and label it on the map!

(5 bonus marks!)

QUESTION 2:At what sort of plate boundary would you find island arcs?

(2 points)

BONUS QUESTION 2(A):Explain the formation of island arcs!

(3 bonus points!)

QUESTION 3:Name one plate boundary that experiences shallow earthquakes.

(2 points)

QUESTION 4:At what sort of plate boundary would you find a rift valley?

(2 points)

BONUS QUESTION 4(A):Explain the formation of a rift valley with aid of diagrams!

(5 bonus points!!)

BONUS BONUS QUESTION 4(B)!

Describe and explain the development of the rift valley over time.

(3 bonus points!)

QUESTION 5:At what sort of plate boundary would you find an ocean trench?

(2 points)

BONUS QUESTION 5(A):Name an example of an ocean trench and mark its location on the map!

(5 bonus points!!)

QUESTION 6:At what sort of plate boundary would you find fold mountains?

(2 points)

QUESTION 7:

At what sort of plate boundaries would you find volcanoes?

FINAL BONUS QUESTION!Draw arrows to mark out a pair of convergent plates and a pair of divergent plates.

(8 bonus marks!)

Answer (Q1):

At a divergent plate boundary, between two oceanic plates

Answer (1(a)):

Mid-Atlantic Ridge

East Pacific Ridge

Answer (Q2):

Convergent boundary, between two oceanic plates

Answer (Q2(a)):

Frictional heat at the oceanic boundaries is high Magma produced from melting of oceanic crust

is different from that of continental crust Abundant molten magma

Abundant volcanoes form (submarine volcanoes) As the volcanoes build up over time and appear

at the surface, this chain of volcanoes appearing over the water is known as island arcs

Answer (Q3):

(Any one of the following…)

1. Convergent boundary – two continental plates

2. Divergent boundary – two oceanic plates

3. Transform boundary

Answer (Q4):

At a divergent plate boundary, between two continental plates

Answer (Q4(a)):

Answer (Q4(b)):

Rift valley mid-oceanic ridge Continental plates oceanic plates How?

Crust continues to widen and thin as it stretches out due to the spreading of the magma beneath

Valley formed is increasingly filled with water from the surrounding oceans

Answer (Q5):

At a convergent plate boundary, between an oceanic plate and a continental plate

Answer (Q5(a)):

Answer (Q6):

At a convergent plate boundary, between two continental plates

Answer (Q7):

All except at continental-continental convergent boundary and transform boundary…

Answer (Final BQ!):

END

Cotopaxi, Ecuador

Indian plate is continuously moving north at the rate of about 2 cm every year. Himalayas are rising at the rate of about 5 millimeter per year Himalayas are still geologically active and structurally unstableEarthquakes are a frequent occurrence in the entire Himalayan region.

Sakura-jima

…the beauty of patterns and processes!

There you have it…