Figure 10. (A) Silty sandstone packages (each roughly 5 m thick) in the hanging wall of the Toiyabe Mine fault, lower Wood Spring Canyon. (B) Miocene sandstone beds, lower Wilson Canyon. Tephra interbedded with these deposits yielded an ⁴⁰Ar/³⁹Ar age of 15.03 ± 0.10 Ma (Tables 2 and 3). Pencil is 14 cm. (C) Folded tephra beds in Miocene sedimentary rocks east of Moss Creek Canyon with ⁴⁰Ar/³⁹Ar ages of 15.84 ± 0.15 Ma and 15.68 ± 0.14 Ma (Tables 2 and 3). (D) Matrix-supported angular conglomerate in the hanging wall of the Toiyabe Mine fault. Note crude inverse grading. Clasts are predominantly Paleozoic quartzite. Hammer in C and D is 27 cm.