JHS CONTENT BOOK_5.docx.pdf

SCI10-Q1-LESSON3 MOUNTAIN BELTS IN PHILIPPINES Mountains are usually formed by different geological processes like the movement of tectonic plates. These landforms are present all over the Philippine archipelago. Groups of these mountain ranges that are similar in form, structure,...

SCI10-Q1-LESSON3 MOUNTAIN BELTS IN PHILIPPINES Mountains are usually formed by different geological processes like the movement of tectonic plates. These landforms are present all over the Philippine archipelago. Groups of these mountain ranges that are similar in form, structure, and alignment are referred to as mountain belts. Mountain Ranges in the Philippines The most prominent range in the country is the Central Cordillera, the central mountain chain of Luzon which cuts across the north to the Luzon Strait from the northern boundary of the central plain. The Central The Sierra Madre Mountain Range is the longest Cordillera is an orogen. An orogen is a belt of Earth’s crust mountain range in the country. It is one of the oldest involved in mountain formation caused by the orogens in the archipelago. It runs in the north-south compression of ancient sedimentary and igneous direction from the provinces of Cagayan to the north terranes. and Quezon to the south. It covers the areas of Aurora, Bulacan, Cagayan, Isabela, Nueva Ecija, Nueva Vizcaya, Quezon, Quirino, and Rizal province. The range’s highest point is still unclear since several peaks are considered as the highest. Cordillera Administrative Region including portions of Ilocos Norte, Ilocos Sur, La Union, Pangasinan, Nueva Vizcaya, and Cagayan. It is considered as one of the highest mountain ranges in the country. The highest peak is Mt. Pulag which reaches an elevation of 2,922 meters. It is also considered as the highest mountain in Luzon and the third highest in the whole archipelago. The Caraballo Mountains connect Sierra Madre Mountain with the Central Cordillera. The mountain range is located KEY POINTS in the province of Nueva Vizcaya. It serves as the location of the headwaters of Cagayan River which is the longest Groups of these mountain ranges that are similar in river in the country. form, structure, and alignment are called mountain belts. An ophiolite separates Luzon’s central plain from the South China Sea The most prominent range in the country is Central Cordillera Mountain Range, the central mountain chain of Luzon which cuts across the north to the Luzon Strait from the northern boundary of the central plain. The Zambales Mountains lie on the western island of Luzon. It is an ophiolite, an abducted slice of oceanic crust emplaced during subduction. It separates Luzon’s central plain from the South China Sea. It extends from western Pangasinan province, the whole length of Zambales, to the tip of the Bataan Peninsula in the south. Its most noticeable feature is the Cabusilan Mountain Range comprising Mt. Pinatubo, Mount Negron, and Mount Cuadrado. These mountains are believed to be volcanic in origin, but the only active volcano in the mountain range is Mt. Pinatubo. Its highest peak is Mt. Tapulao with a height of 2 037 meters.