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Progress in Earth and Planetary Science
Fig. 7 | Progress in Earth and Planetary Science

Fig. 7

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

Fig. 7

a FAA map of Sulu Sea showing the three major features: NWB = Northwest Basin, CR = Cagayan Ridge, SEB = Southeast Basin. The numbers represent the center of the sub-windows location for the calculation of the radially averaged power spectrum. b The first vertical derivative map reveals the Sulu Sea’s enhanced shallow features. Prominent lineaments were traced (black dashed line) corresponding to some large-scale structures (e.g., Rangin 1989; Schlüter et al. 1996). BB = Balabac Basin, BR = Banggi Ridge. See text for discussion

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