Answer key will be provided on May 17, 2020. Thank you.
Geology of the Philippines Quiz Set E
1. This plate is entirely composed of an oceanic lithosphere created
150 million years ago.
a. Pacific Plate
b. Eurasian Plate
c. Indo-Australian Plate
d. Philippine Sea Plate
2. This structure represents an extinct mid-oceanic spreading ridge,
cut transversely by a series of parallel faults oriented N-S.
a. Central Basin Fault
b. Kyushu-Palau Ridge
c. Oki-Daito Ridge
d. Parece Vela Rift
3. The marginal basins at the southern boundary of the Eurasian and
Philippine Sea Plate are represented by ______________________.
a. South China Sea
b. Sulu Sea
c. Celebes Sea
d. all of the above
4. It occupies around 50% of the Philippine Sea Plate.
a. Parece Vela – Shikokiu Basin
b. Marianas Basin
c. West Philippine Basin
d. Ayu Basin
5. This ridge defines the eastern limit of the Shikoku Basin and
represents the volcanic arc of the presently active Bonin Trench.
a. Izu-Bonin
b. Palau-Kyushu
c. West-Marianas
d. Oki-Daito
6. This is composed of volcanic material dated 14.7 Ma and corresponds
to a volcanic arc that was active until the end of early Miocene.
a. Cagayan de Sulu Ridge
b. Sulu-Zamboanga Arc
c. Celebes Sea Basin
d. North Palawan Block
7. The absolute velocity of this plate with respect to hot spots is at
107 mm/yr.
a. Pacific Plate
b. Eurasian Plate
c. Indo-Australian Plate
d. Philippine Sea Plate
8. This ridge traverses the longer diagonal of the Philippine Sea
Plate for around 2,500 km.
a. Izu-Bonin
b. Palau-Kyushu
c. West-Marianas
d. Oki-Daito
9. The boundary between the Eurasian Plate and the Philippine Sea
Plate in the south is basically composed of marginal basins that successively
opened in several phases within _____________ times.
a. Paleogene
b. Eocene
c. Oligocene
d. Neogene
10. This plate is developed at the western edge of the Pacific plate.
a. Pacific Plate
b. Eurasian Plate
c. Indo-Australian Plate
d. Philippine Sea Plate
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