Wallace, Laura M.; Ellis, Susan; Little, Tim; Tregoning, Paul; Palmer, Neville; Rosa, Robert; Stanaway, Richard; Oa, John; Nidkombu, Edwin; Kwazi, John
We show results from a network of campaign Global Positioning System (GPS) sites in the Woodlark Rift, southeastern Papua New Guinea, in a transition from seafloor spreading to continental rifting. GPS velocities indicate anticlockwise rotation (at 2–2.7°/Myr, relative to Australia) of crustal blocks north of the rift, producing 10–15 mm/yr of extension in the continental rift, increasing to 20–40 mm/yr of seafloor spreading at the Woodlark Spreading Center. Extension in the continental rift is...[Show more]
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