Crustal Evolution of a Paleozoic Intra-oceanic Island-Arc-Back-Arc Basin System Constrained by the Geochemistry and Geochronology of the Yakuno Ophiolite, Southwest Japan

Figure 4

(a) Tera and Wasserburg [24] U-Pb zircon diagrams for metagabbro (Gb1) and amphibolite (Am1). Error ellipses indicate 2𝜎. (b) Probability plot and histogram for the spot ²⁰⁶Pb*/²³⁸U ages and peak ages.

(a)

(b)