Figure 4. a-c: t-T path for each profile. Each line represents the t-T path of a sample, the red and blue lines represent the t-T path of the lower and upper sample respectively; transparent shading indicates uncertainties. The red and blue dashed lines denote thermal paths that best fit the data. d-f: Age-elevation profiles for the Apuela, Garanda and Cuenca areas showing AFT ages, mean-track length (MTL) and AHe ages; ages predicted based on thermal history are shown by pastel colors.