Barite sulfur isotopes

Sulfur isotopic compositions (S S) of sulfides and sulfate (barite) from the Se-type and Te-type are summarized in Fig. 1.122. Almost all S S values from the Se-type and Te-type fall in a range from —3%o to - -6%o (Fig. 1.122). In general, the 5 S values from the Se-type are similar to those of the Te-type. However, some S S values from the Se-type are lower than those from the Te-type. 

Kusakabe, M. and Chiba, H. (1983) Oxygen and sulfur isotopic composition of barite and anhydrite Irom the Fukazawa deposit, Japan. Econ. Geol. Mon. 5, 292-301. 

Fig. 3.13 Influence of f02 and pH on the sulfur isotope composition of sphalerite and barite at 250°C and = 0 (modified after Ohmoto, 1972)...

Sulfur-isotope variations in concretions are interesting in that their 5-values may fall outside the range in Fig. 6.2.7. Sakai (1971) reported barite concretions in the Japan Sea with 5-values as high as +87%c. A plaus-... 

Boyle, R.W., Wanless, R.K. and Stevens, R.D., 1976. Sulfur isotope investigations of the barite, man nese and lead-zinc-copper-silver deposits of the Walton-Cheverie area. Nova Scotia, Canada. Econ. Geol., 71 749—762. 

Sakai, H., 1971. Sulfur and oxygen isotopic study of barite concretions from banks in the Japan Sea off the Northeast Honshu, Japan. Geochem. J., 5 79—93. 

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