FORECASTING EVALUATION OF THE CHROMITOSITY OF ULTRAMAFITE OF THE BAIKAL-MUYI OPHIOLITE BELT, NORTH-EAST OF THE BAIKAL REGION

DOI:10.24411/0869-5997-2020-10001

Abstract

An unconventional petrochemical method for assessing the potential chromite content of ultramafic rocks of the Paramsky and Shamansky massifs, which are fragments of the Baikal-Muyi ophiolite belt in the north-eastern Baikal region, was used in the work. This method is based on the analysis of the results of a petrochemical study of ultramafic rocks, covering the entire area of the studied massifs. Earlier, we used this method to study the chromite- bearing massifs of ultramafic rocks of the Kurtiboshinsky ophiolite belt in the north-eastern part of the Western Sayan, where the promising areas were identified. Within these massifs, previous researchers have established ore occurrences of chromitites, that confirms the relationship of mineralization with the chemistry of host ultramafic rocks. The studied Paramsky and Shamansky massifs have so far practically not been evaluated. However, chromite ore occurrences were noted on their areas, which determines the relevance of this study.