West Philippine Basin  search
BTPacific Ocean
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RTDSDP Site 290
 Leg 31
 DSDP Site 291
 DSDP Site 294
 DSDP Site 295
 Kyushu-Palau Ridge
 DSDP Site 447
 Leg 59
SNRegion of W Pacific bordered by Philippine Trench, Ryukyu Trench, and Kyushu-Palau Ridge. This term has multiple hierarchies. Added to Thesaurus in 1989.