Division of IEDS
HIG 214 - Introduction to Physical Geography 2023
Practical # 2 THE PLATE TECTONIC THEORY
Surname: __________ Name______________ Time received:_______ Total:
/28 Marks
PLATE TECTONICS MAPPING ACTIVITY
Answer the following questions about Plate Tectonic Processes using Map 1: Tectonic plates
(attached).
1. Study the attached plate map and answer the questions below;
i. What is the ridge found in location A______________
ii. Name the Mountain range found at location B____________
iii. Name the Transform fault symbols (and their faults) at Location
C____________
iv. The volcanic Island at Location D _______________
2. What is the name of the small crustal plate off the Oregon coast that is subducting
under the North American plate? _______________________
3. Where are most of the earthquakes and volcanoes located? Check one:
a. crustal plate margins _____________
b. interior of a crustal plate _____________
Questions 4-9 refer to the notes and diagrams in the Readers provided (Understanding
plate motions)
4. Divergent margins and continental spreading centres:
a. New crust forms at plate margins as ___________ rises creating ridges under
oceans such as the _____________________ and the
____________________.
b. Continental spreading centres include the __________________ in the US and
the ___________________in Africa.
5. Convergent margins – subduction zones:
Identify the land form (geomorphology) created at each type of Convergent Boundary
and provide an example.
a. Ocean-Ocean _____________________________________________________
b. Ocean-Continent __________________________________________________
c. Continent-Continent_______________________________________________
6. Transform faults – strike slip faults
a. Sometimes tectonic plates shift past each other horizontally
________________ directions at their boundary.
b. One example of a strike slip fault near San Francisco is the
_________________.
7. Earthquakes:
a. Most earthquakes occur near plate _____________.
b. _____________ keeps the plate edges from sliding smoothly past each other.
c. The longer the plates remain stuck, the more strain builds and the more
violent the snap and resulting _____________
8. Volcanoes:
a. Magma rises to the surface from inside the earth mainly at
__________________ and _______________________.
b. Around the rim of the Pacific Ocean, the 40,000 km long ________ of
________ is especially active.
9. Hot Spots:
c. In a few places _________ melts through a tectonic plate.
d. Each hot spot likely marks the top of a plume of _____________ rock that
rises from deep in the earth.
Due Date: 4:06pm, Mon 21st Sept 2023
Map 1: Tectonic Plates