Geomagnetic reversal frequency since the Late Cretaceous

Long-wavelength tilting of the Australian continent since the Late Cretaceous

Article history: Global sea level and the p Received 22 December 2007 Received in revised form 2 November 2008 Accepted 22 November 2008 Available online 21 January 2009 Editor: R.D. van der Hilst

Sea level and vertical motion of continents from dynamic earth models since the Late Cretaceous

Sonja Spasojevic and Michael Gurnis physics from the University of Houston in 2003. After working for two years as a geophysicist for BP in the deep-water Gulf of Mexico, she joined the California Institute of Technology (Caltech) in 2005 to work on research related to the dynamics of long-term sea level change, vertical motion of continents, and evolution of sedimentary basins, with Michael Gu...

Geomagnetic reversal through critical models

Geomagnetic polarity reversal intervals display power law distribution functions, which indicate a critical phenomenon as the mechanism of their source. The geodynamo is assumed to be a system of magnetic spins in a critical phase-transition state. Seki and Ito developed two models to simulate these reversals: the N-disc coupled model and the Coupled map lattice model both derived from the Riki...

Uncertainties in the Relative Positions of the Australia, Antarctica, Lord Howe, and Pacific Plates since the Late Cretaceous

We determined parameters that describe finite rotations and their uncertainty regions for relative plate motion at the spreading centers between the Pacific and Antarctica plates, between Australia and Antarctica, and between the Lord Howe Rise and Australia. We combined these to yield a range of possible finite rotations describing the relative positions of the Pacific, Australia, Antarctica, ...

Frequency of Proterozoic geomagnetic superchrons