Figure 2. Diagram summarizes the magmatic history of the Alboran Region. Subduction-related volcanism and plutonism (tholeiitic, calc-alkaline, and K-rich) occurred from ~25 Ma to ~5-6 Ma. In the Messinian, the composition of the volcanic rocks changed to Na-rich, alkaline compositions. Data sources are the same as in Figure 1 and also include Harland et al. (1982) and Kastens (1992).

Figure 2. Diagram summarizes the magmatic history of the Alboran Region. Subduction-related volcanism and plutonism (tholeiitic, calc-alkaline, and K-rich) occurred from ~25 Ma to ~5-6 Ma. In the Messinian, the composition of the volcanic rocks changed to Na-rich, alkaline compositions. Data sources are the same as in Figure 1 and also include Harland et al. (1982) and Kastens (1992).