Magma-assisted Continental Rifting: The Broadly Rifted Zone in SW Ethiopia, East Africa

Supporting information accompanying a paper entitled "Magma-assisted Continental Rifting: The Broadly Rifted Zone in SW Ethiopia, East Africa" submitted to AGU publications, Tectonics. The dataset contains apatite and zircon (U-Th-Sm)/He data from the southern Main Ethiopian Rift, Gofa Province and Chew Bahir Basin, as well as additional QTQt thermal models that are discussed in the paper. Table 2 and Table 3 contains full single-grain results from apatite (AHe) (U-Th-Sm)/He (Table 1) and zircon (ZHe) (U-Th-Sm)/He (Table 2) analyses. Sampling locations are indicated in figure 2a. Figure S2 shows QTQt thermal models using either AHe, ZHe or both single-grain ages. The supporting information provide the same as figure 5 and 6 in the main text, but expected thermal history results obtained from QTQt (Gallagher, 2012), and observed age (Obs. age) against model predicted age (Pred. age) plot for individual sample is included. The expected thermal history represents the weighted mean of all the models sampled (solid lines). The thermal history of the topmost sample is plotted in blue, and the thermal history of the lowermost sample is plotted in red. The thermal histories for samples in between are drawn in gray. For the top and lowermost samples, the 95% credible interval (stippled lines) is drawn in blue and red, respectively. The black boxes are the thermal history constraints. Sample names are indicated for each model. Further information about the modeling setup is provided in Table 1 in the main text. All of the models results are explained in the main text.