Busuanga, is the largest island in the Calamian Group of islands in the province of Palawan in the Philippines. Busuanga Island is the second largest island in the province after Palawan island itself. The island is located halfway between the islands of Mindoro and Palawan with the South China Sea located to the west and the Sulu Sea to the southeast. South of the island are the two other major islands of the Calamian Group: Culion Island and Coron Island. The western third of the island is under the municipality of Busuanga and the eastern two-thirds belong to the municipality of Coron.
Busuanga Island is known as a recreational diving location due to World War II wrecks that were sunk by American navy bombings in Coron Bay, a natural anchorage near the town center of Coron, on September 24, 1944.
Geology
Part of the North Palawan Block, Busuanga Island consists mainly of the Liminangcong Formation, a
Permian to
Late Jurassic chert. This chert forms the distinguishing mountain ranges, with the Middle-Late Jurassic Guinlo Formation clastics forming the valleys on Busuanga.
Busuanga was known for its tabular
manganese deposits found within the chert sequence, thick and extending laterally up to .
Braunite is the common manganese mineral type found in the
ore.
Geology Gallery
Outcrop of the deformed Liminangcong chert formation in Busuanga, Palawan 02.jpg|An outcrop of deformed Liminangcong chert along the Coron-Busuanga road near the Marina del Sol yacht club
Folded layers of bedded chert formation in Busuanga, Palawan 01.jpg|Close-up view of the folded layers of Liminangcong chert in Busuanga
Bundok Dalara mula sa tuktok ng Bundok Tapyas, Bayan ng Coron, Isla ng Busuanga, Lalawigan ng Palawan.jpg|View of Mt. Dalara, the tallest mountain in Busuanga Island from Mt. Tapyas in Coron Town
Highly deformed bedded cherts in Coron town, Busuanga (Lubos na naipit na mga batong tsert sa bayan ng Coron).jpg|Another outcrop of heavily-deformed Liminangcong chert in Guadalupe, Coron
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