Heterogeneity of mineral chemistry and sulfur isotopic
In hand samples, alunite occurs as a fine-grained creamy white mineral, commonly found within veins and fracture-fills (Fig. 2 A, 2B).It also occurs as white patches of cement surrounding clasts of lithic fragments (Fig. 2 C).In some samples, alunite occurs as pervasive alteration of the volcanic host rocks (Fig. 2 D, 2E).Alunite was also found …
قرأ أكثر