Figure 2 -Magnetostratigraphic study of the Quebrada la Porcelana section, northwestern Argentina (Andean foreland). Column A is the stratigraphic column with detail provided for exposed Neogene strata. Column B is a plot of VGP latitude vs. stratigraphic level of sample sites. Column C is correlated with the GMPTS (column D) of Cande and Kent (1995) to determine reversal ages.