先前的区域研究表明，南菲律宾是埃达克岩和富铌岛弧玄武岩的一个典型产地。
Previous regional studies have suggested that the southern Philippines is a type locality for both adakites and Nb-enriched arc basalts.
东坡（洋坡）缓，是西北菲律宾海板块向琉球岛弧下插的一边，与大洋盆地相连。
The east slope is slow, and is the inserting side from the northwest Philippine Plate into the Ryukyu Island Arc, connecting with the ocean basin.
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