Fig. 12
From: Assessment of lithium potential for future exploration in the Ghahavand Plain of Western Iran

(a-b) Oxidation-reduction condition based on U/Th and V/Cr ratios. Using the discrimination field of Jones and Manning 89, the U/Th and V/Cr ratios indicate that most samples from the Ghahavand area fall within the oxic environment with only one exception. (c) Oxidation-reduction state from V/(V+Ni) ratio. The V/(V+Ni) ratio, also interpret using the discrimination field of Hatch and Leventhal 87, support oxic to weakly oxic condition in the Ghahavand Plain sediments. (d) Paleosalinity interference from Rb/K ratio. Based on classification of Ferriday and Montenari 93, the Rb/K ratio in Ghahavand sediments, suggest deposition in fresh to fresh to brackish environment with no evidence of marine influence.