The time scale file contains two columns, beginning of period (Myr) and end of period (Myr). There is no need to specify the polarity of the period since the first reversal period is assumed to be normally polarized. To use the time scale file filename when running Magellan the -t option can be used followed by the time scale file (magellan -t filename). Equivalently the time scale file can be specified in the configuration file, with the key timescale=filename.
2010-08-03