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A substantial portion of the Pacific basin is composed of seafloor formed during the Cretaceous Normal Superchron (CNS). Because this region lacks the magnetic lineations typically required to constrain tectonic reconstructions, we employ additional methods for interpreting CNS Pacific history, involving seafloor fabric, basement paleolatitudes, and age data. We utilize seafloor fabric, including fracture zones and the rift margins of large igneous provinces, to derive quantitative rotations. The timing of such rotations is constrained using rock ages, bounding magnetic isochrons, and estimates of interactions with surrounding terrains. The method relies on high-resolution shipboard bathymetry and rock ages, as much fine-scale...

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