Figure 3. Probability Density plot of compiled published
bedrock ages and detrital single grain ages <ca. 100 Ma from
the a) the Western Alaska Range, Central Alaska Range, and the Wrangell
Arc combined (ARZS arcs), b) Western Alaska Range, c) the Central
Alaska Range, d) the Talkeetna Mountains, and e) the Wrangell Arc. Data
in tables S1, S2, S3, and S4. Kula slab subduction period (100-60 Ma);
slab window (60-50 Ma); Pacific slab dominated (50-30 Ma); and Yakutat
slab dominated (30 Ma to Recent). Note the Western and Central Alaska
Range Arcs have continued magmatism to ca. 25 Ma before a Yakutat slab
related cessation in magmatism till arc reinitiation ca. 1 Ma (Trop et
al., 2019; Jones et al., 2021; Brueseke et al., 2023).