FIGURE 3 in PE Note: Corrigenda to Murphey et al. 2018

FIGURE 3. Examples of zircon subpopulations recovered from TBM tuff sample PCM3 Aug14-07, shown in their approximate abundances. Elongate, ash-type zircons were only a minor component in the total zircon yield. CA-TIMS dating was limited to single zircons from the elongate and euhedral subpopulations. Most of these analyses gave dates ca. 47.0 Ma, but two single-grain analyses, sK (47.8 Ma) and sM (612 Ma) demonstrated that some older, euhedral, detrital grains were incorporated into the tuff during deposition. Scale bars in micrometers (μm).