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Progress in Earth and Planetary Science
Fig. 4 | Progress in Earth and Planetary Science

Fig. 4

From: Imaging crustal features and Moho depths through enhancements and inversion of gravity data from the Philippine island arc system

Fig. 4

Isostatic anomaly map of the Philippines showing the general distribution of a sedimentary basins (polygons with hachures), metamorphic rocks (heavy line polygons), and b ophiolitic rocks (modified from MGB 2010). Numbers represent the sedimentary basins of PMB affinity: 1 = Ilocos-Central Luzon (ICL), 2 = Cagayan Valley (CV), 3 = Mindoro, 4 = Southern Luzon-Bicol, 5 = Iloilo, 6 = Visayan Sea, 7 = Samar, 8 = Agusan-Davao (AD), 9 = Cotabato (C). BS = Bohol Sea, NPM = Northern Palawan-Mindoro block (white polygon), AR = Antique Range. Circles symbolize the occurrences of nickel (black) and chromite (white) deposits in the Philippines (MGB 2010)

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