Figure F3. Model for the tectonic evolution of the Philippine Sea region, after Hall (2002). NNP = North New Guinea plate, PHS = Philippine Sea plate, PAC = Pacific plate, IBM = Izu-Bonin-Mariana arc, KPR = Kyushu-Palau Ridge. Yellow stars = paleo- and present positions of proposed Site IBM-3C. Red and yellow stars = Eocene–Oligocene crust, which formed an across-arc section until 25 Ma.
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