Major Australian-Antarctic Plate Reorganization at Hawaiian-Emperor Bend Time

  title={Major Australian-Antarctic Plate Reorganization at Hawaiian-Emperor Bend Time},
  author={Joanne M. Whittaker and R. Dietmar M{\"u}ller and German Leitchenkov and H. M. J. Stagg and Maria Sdrolias and Carmen Gaina and Alexey G Goncharov},
  pages={83 - 86}
A marked bend in the Hawaiian-Emperor seamount chain supposedly resulted from a recent major reorganization of the plate-mantle system there 50 million years ago. Although alternative mantle-driven and plate-shifting hypotheses have been proposed, no contemporaneous circum-Pacific plate events have been identified. We report reconstructions for Australia and Antarctica that reveal a major plate reorganization between 50 and 53 million years ago. Revised Pacific Ocean sea-floor reconstructions… 
Comment on "Major Australian-Antarctic Plate Reorganization at Hawaiian-Emperor Bend Time"
Recon reconstructions for Australia and Antarctica showing a change in relative plate motion ∼53 million years ago coincident with an inferred major global plate reorganization are presented.
Response to Comment on "Major Australian-Antarctic Plate Reorganization at Hawaiian-Emperor Bend Time"
This work states that although it disagrees with Tikku and Direen's interpretations, the associated controversies reflect an absence of agreed-upon geophysical criteria for distinguishing stretched continental from oceanic crust, and a lack of samples from nonvolcanic margins.
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