Identification of deep blind mineralization and dispersed zones using geochemical frequency anomaly in comparison with Zonality method

Identification of deep ore deposits is one of important subjects in exploration field. Discrimination of dispersed mineralization zones and blind mineralization area is an important challenge in exploration of mineral deposits. Geochemical Zonality method and alteration models are traditional method that utilized for exploration of deep ore deposits specially Cu porphyry and Au veiny deposits. In this study, the anomaly thresholds have been determined using the fractal method for calculating the Zonality indexes in Tanurcheh area and then 4 important Zonality indexes have been used. In addition to these traditional methods, suitable information in this field can be achieved using interpretation of geochemical data in frequency domain. The situation of deep deposits and dispersed zones can be surveyed using interpretation of frequency anomaly in frequency coefficients of elements method. In this study, the potential of deep mineralization in one part of Kashmar Au and Cu mineralization area has been surveyed by frequency coefficients of elements method and obtained results have been compared to Zonality method and information of deep exploratory boreholes. The results of frequency coefficients method have properly been confirmed using the results of deep drillings unlike Zonality method.