Supplementary Figure 1: New zircon U–Pb ages and their problems in the integration of the Geological Map of Colombia
Year: 2026
Type: supplementary-materials
Abstract: Supplementary Figure 1: Explanation of the age–location plots used to define the ages of chronostratigraphic units in the Geological Map of Colombia. This figure illustrates the methodology used to construct age–location plots for defining the ages of chronostratigraphic units. On the left–hand side, the International Chronostratigraphic Chart (Cohen et al. 2013; updated v2024/12) is shown, with the geological timescale adjusted so that 10 million years (Ma) corresponds to 13.18 mm in the figure. Isotopic dating are primarily organized by physiographic province and latitude, from south to north. Dates corresponding to lower latitudes are shown on the left, whereas those from higher latitudes are shown on the right. Each age is plotted along the timescale, with a vertical black bar representing its uncertainty range. Dates with larger uncertainties are depicted using thinner lines and a grey background to visually reduce their relative weight. Each date is labelled with the sample code and associated lithostratigraphic unit, the latter separated by dashed black lines. All data were sourced from the Catálogo de dataciones radiométricas de Colombia en ArcGIS 9.3 y Google Earth (Gómez et al. 2015ab). Symbols representing the different isotopic dating methods are also included. In the U–Pb dating plots, the interpretation of ages as igneous or metamorphic follows the classification provided by the original authors.
Source: Figshare
Language: English
Subfield: Geochemistry and Petrology
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7204069583