Inversion of the Bongor basin (Chad): Unveiling Late Cretaceous tectonic reactivation in Central Africa_Supporting Information

<b>Table S1</b><b>.</b> Sample details.<b>Figure S1</b><b>.</b>Photos of basement borehole granite samples used in this study.<b>Table S</b><b>2</b><b>.</b> Analytical details for the LA-ICP-MS AFT and AU-Pb dating.<b>Figure S</b><b>2.</b> Apatite U-Pb concordia and mean age plots, constructed in IsoplotR (Vermeesch, 2018). Apatite ages were calculated as lower intercept ages from unconstrained isochron regression lines. Few analyses plot away from the regression lines (open ellipses) and were not included in the age calculations.<b>Figure S</b><b>3</b><b>.</b>U-Pb data for secondary standards used in this study. Apatite U-Pb data for the Durango secondary standard (McDowell et al., 2005) (left panel). Apatite U-Pb data for the McClure Mountain secondary standard (Schoene &amp;Bowring, 2006) (right panel).<b>Table S</b><b>3</b><b>.</b> Single AU-Pb data from individual grains analyzed in this study, calculated using the Iolite software (Paton et al., 2011). Final 238U/206Pb and 207Pb/206Pb represent the isotopic ratios with 2σ representing the standard error. The error correlation represents the correlation of standard error between the two ratio sets. Red represents samples for which no valid data was obtained.<b>Table S</b><b>4</b><b>.</b> AFT ages of the samples from the studied area.<b>Figure S</b><b>4</b><b>. </b>AFT single grain radial plots (Vermeesch, 2018). The colour scale represents the concentration of Uranium in ppm. Both 1σ and 95% confidence uncertainties are given for both the calculated central age and the degree of dispersion. P(χ2) values above 0.05 suggest that the data can statistically be interpreted as a single population.<b>Figure S</b><b>5</b><b>. </b>The measured fission track length histograms for each sample.<b>Table S</b><b>5</b><b>.</b> Single-grain AHe results from the studied area<b>Figure S</b><b>6</b><b>. </b>QTQt expected thermal history model outputs.