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MESOZOIC-CENOZOIC POLYGON MODEL

By Conrad, Steinberger & Torsvik (2013)

Torsvik et al. (2010) reconstructed plate motions globally back to 150 Ma, but reconstructed continental areas (i.e. all plates except for those in the Pacific basin) back to 250 Ma. To extend Torsvik et al.’s (2010) model back to 250 Ma for all areas, we here used the global reconstruction of Seton et al. (2012) to reconstruct the motion of plates in the Pacific basin for the 150-200 Ma time period and extended these Pacific plate motions for the 200-250 Ma time period using the data archive supplementing Seton et al. (2012). 

Poles of rotation and plate boundaries for the 150-250 Myr time period can here be downloaded and can be added to those published by Torsvik et al. (2010) to produce a global reconstruction back to 250 Ma.

The file conrad_data.zip contains two files that provide the lat-long locations of:

(1) digitized plate boundaries (latitude, longitude in degrees) for the 150-250 Ma extension of the Torsvik et al. (2010) plate tectonic model, with headers denoting the name, plate number, and number of points that describe each plate (file: nature12203-s2.txt)

(2) digitized stage pole (stage start (Ma), stage end (Ma), latitude (deg), longitude (deg), rotation rate (deg/Myr), plate number, plate name) for the 150-250 Ma extension of the Torsvik et al. (2010) plate tectonic model (file: nature12203-s3.txt)