GOP

• the westward subduction of the PSP under eastern PH arc produced the Philippine Trench
• The interaction of the Eurasian plate, Pacific plate and the Indo-australian plate is responsible for active tectonics of the Wester Pacific Domain
• The Cagayan River Basin is a north-south trending intermontane basin approximately 250km long and 80 km wide which developed in the mobile belt bordering the Asian mainland
• basement are crystalline rocks lying above the mantle and beneath all other rocks and sediments
• A formation is a rock unit that is distinctive enough in appearance that a geologic mapper can tell it apart from the surrounding rock layers
• Arabia is the only minor plate that is of continental affinity
• Cagayan de sulu ridge divides the Sulu Sea Basin into two parts: Northwest sulu basin and Southeast sulu basin
• What are the two sub-basins divided by the Sulu Sea basin?

  Northwest sulu basin and Southeast sulu basin
• The greatest eruption in the 20th century was 1991 Mt. Pinatubo eruption
• The pacific plate has undergone kinematic reorganization at around 43 ma, rotating 50° clockwise with respect to the change in orientation of the Hawaiian emperor islands
• An archipelago of more than 7,600 islands formed by volcanic activity along the Pacific Ring of Fire.
• The island that is located in the western Pacific Ocean, east of the coast of Southeast Asia. It was formed by the subduction of the Philippine Sea Plate under the Eurasian Plate.
• South China Sea Basin It is an oceanic basin whose axis is oriented NE-SW with average depths of 4 km. It bounds the Philippine archipelago to the NW.
• West Philippine Basin The largest oceanic basin in the Philppine region, occupying around 50% of the Philippine Sea Plate.
• Ilocos - Central Luzon Basin A basin where it flanks in western Luzon island along a generally N-S axis.
• Cagayan Valley Basin The basin where the the largest river basin in the Philippines is located.
• Mindoro Basin A basin where the tertiary sedimentary formations are both thrust over continental type formations belonging to the North Palawan Block, and juxtaposed with South China Sea ophiolitic crust.
• Visayan Basin A basin that installed unconformably over a deformed volcaniclastic basement, that covers a portion of Negros, whole of Cebu and a large part of Bohol
• Southeast Asian Margin A complex region that is home to a number of active volcanoes, including Mount Pinatubo in the Philippines and Merapi in Indonesia.
• Cagayan de Sulu Ridge The largest submerged mountain range in the Philippines.
• Philippine Trench The 3rd deepest trench in the world.
• Negros Trench An oceanic trench located northeast of the Sulu Trench and west of Negros Island Region in Visayas.
• Sulu Trench An oceanic trench in the Pacific Ocean, located west of the islands of Mindanao and Sulu in the Philippines.
• Cotabato Trench An oceanic trench located off the southwestern coast of Mindanao in the Philippines and it is thought that the oceanic crust of the Sulu Sea Basin is being consumed.
• Manila Trench An oceanic trench in the Pacific Ocean, located west of the islands of Luzon and Mindoro in the Philippines. The trench reaches a depth of about 5,400 meters.
• East Luzon Trough An oceanic trench north of the Philippine Trench and east of the island of Luzon. The trench is located near the Philippine orogeny and located in the southeastern region of the Philippine Sea Plate.
• Philippine Mobile Belt & North Palawan Block 2 geologic entities of the Philippine archipelago
• Philippine Mobile Belt A complex portion that includes two subduction zones: the Manila Trench to the west and the Philippine Trench to the east, as well as the Philippine Fault System.
• North Palawan Block A microcontinental block situated in the western Philippines and the southern tip of the Manila Trench.
• Pre-Cretaceous & Post-Jurassic 2 categories of metamorphic rocks present in the Philippines
• Pre-Cretaceous The category that is represented by metamorphic formations located in North Palawan, Mindoro, Panay and neighboring islands
• Marikina Valley Fault System A fault that consists of two NE-trending faults: the Western and Eastern Valley Faults- that transect parts of eastern Metro Manila and possibly extend southwards to Tagaytay Ridge.
• Macolod Corridor A NE-SW trending zone of Quaternary volcanism which perpendicularly bisects the Luzon Arc.
• Lubang-Verde Passage Fault The fault system that is located offshore between Batangas peninsula and Mindoro Island, following the northwest-southeast alignment of Verde and Lubang islands.
• Left-Lateral Slip Fault type of Philippine Fault Zone
• Benham Rise An underwater plateau located in the western Pacific Ocean, about 1,300 kilometers (810 mi) east of the Philippine island of Luzon.
• Apolaki Caldera A large, bowl-shaped depression in the Benham Rise, an underwater plateau located in the western Pacific Ocean.
• Lutopan Diorite The oldest intrusion of the Philippines
• Tampakan Deposit The location of a new discovery of high sulfidation epithermal deposit in the Philippines.
• Southern Segment The fault that bounds the eastern flank of the Agusan-Davao Basin.