Sulfur isotope ratios determined in specimens of primary galena and sphalerite from the southern part of the Broken Hill silver-lead-zinc lode were similar to those found in secondary sulfates (mainly anglesite), with average delta S 34 values of + 1.0 and + 0.7, respectively. Much higher delta S 34 values, averaging --43.2, were found in supergene galena and sphalerite which occur chiefly in colloform masses in joints and cavities in theprimary ore to depths of as much as 1,520 feet.

This content is PDF only. Please click on the PDF icon to access.

First Page Preview

First page PDF preview
You do not have access to this content, please speak to your institutional administrator if you feel you should have access.