Geology Board Exam Reviewer - GOP The Philippines: A Complex Plate Boundary Quiz Set G

As I can't really commit to a 100-item practice set, I'll do quizzes of specific course subject of Geology.
Answer key will be provided on May 31, 2020. Thank you.

Geology of the Philippines

The Philippines: A Complex Plate Boundary

Set G

 

1. A conduct of marine geophysical survey with GLORIA (Geological Long-Range Inclined Asdic) and an offshore fieldwork in Halmahera Island appear to confirm the southward propagation of this geologic structure towards the Moluccas Collision Zone.

a. Philippine Mobile Belt

b. Philippine Fault

c. Philippine Trench

d. East Luzon Trough

 

2. It represents an arc-continental collision.

a. Taiwan

b. Mindoro-Panay

c. Moluccas Sea

d. Palawan Microcontinental Block

 

3. Dating of these rocks is essentially based on the ages of pelagic sediments covering them.

a. Metamorphic rocks

b. Ophiolites and ophiolitic rocks

c. Magmatic rocks and active volcanic arcs

d. Sedimentary basins

 

4. This is the morphological expression of the westward subduction of the Philippine Seas Plate under the eastern Philippine Arc.

a. Philippine Mobile Belt

b. Philippine Fault

c. Philippine Trench

d. East Luzon Trough

 

5. This category of metamorphic formations is represented by those rocks that can be found in North Palawan, Mindoro, Panay, and neighboring islands belonging to the Palawan-Mindoro Microcontinent.

a. pre-Cretaceous metamorphic rocks of continental origin

b. Cretaceous metamorphic rocks of insular arc affinity

 

6. The thickness of the sedimentary fill of this east-dipping subduction zone varies between 250 and 2,600 m.

a. Manila Trench

b. Cotabato Trench

c. Philippine Trench

d. Negros Trench

 

7. According to McCaffrey (1991), this active collision represents a present-day example of the emplacement of ophiolites by slivers (obduction).

a. Taiwan

b. Mindoro-Panay

c. Moluccas Sea

d. Palawan Microcontinental Block

 

8. The displacement rate of the Philippine Sea Plate is _______________.

a. 5 cm/yr

b. 6 cm/yr

c. 7 cm/yr

d. 8 cm/yr

 

9. This trench appears to be linked with the Negros Trench by a left-lateral strike slip feature cutting across the Zamboanga Peninsula.

a. Manila Trench

b. Cotabato Trench

c. Philippine Trench

d. Negros Trench

 

10. The two corresponding active volcanic arcs of this collision consequently collided as well.

a. Taiwan

b. Mindoro-Panay

c. Moluccas Sea

d. Palawan Microcontinental Block

 

11. A bathymetric link between this subduction zone and the Manila Trench is represented by a shallow trough that passes northeast off Palawan Island.

a. Manila Trench

b. Cotabato Trench

c. Philippine Trench

d. Negros Trench

 

12. A double-vergent arc-arc collision.

a. Taiwan

b. Mindoro-Panay

c. Moluccas Sea

d. Palawan Microcontinental Block

 

13. There is a corresponding active volcanic arc on the western margin of Mindanao for this trench.

a. Manila Trench

b. Cotabato Trench

c. Philippine Trench

d. Negros Trench

Answer key is here. I advise that you check it out after finishing all sets.

Thanks.