Fig. 10
From: Assessment of lithium potential for future exploration in the Ghahavand Plain of Western Iran

Strontium isotope ratios of the Ghahavand Plain sediments and their potential sources: crust and mantle 64, the Oligomicene carbonate 67, the Alvand pluton 65 (gabbroic rock, aluminous porphyric granite, mylonitic granite, leucogranite), and the Eocene-Oligocene volcanic rock in the eastern Saveh 66.