Sulphur Isotope Abundance Variations in Sulfides of the Dharwar Craton - Part II: Ingaldhal

In this sequel to the previous note, we describe the results of δ³⁴S measurements on sulphides of the Ingaldhal deposit. A component with near-zero permit values is superposed on a possibly larger component with positive δ³⁴S values ∼+10‰. The spread can be explained in terms of change in the solution parameters (T, pH and f_O2) of the source-fluid, these being represented by f_s2-f_O2 diagrams. An area on this diagram, sets constraints on the solution parameters during deposition, as indicated.