Sunday, August 18, 2013

Comparison - 32 yrs ago and now

Déjà vu time:

I'm in the process of revising and enhancing reconstructions of the Nazca oceanic and South American continental plates. In the process, I decided to compare the latest parameters with those I published 32 years ago. Long = Longitude, Lat = Latitude, Ang = Angle of rotation. 81 = 1981. 13 = 2013. Other than a slight offset of the longitudes and the greater resolution now, the comparisons are not too bad -- especially the rotation angle. The x axis is age in millions of years. The y axis is degrees.

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