Remote sensing and geochemical investigations to highlight the role of structural elements in the distribution pattern of elements related with porphyry copper deposits with a case study Kahang

Document Type : Original Article

Author

Assistant professor

Abstract

Porphyry copper and molybdenum deposits in metallogenic belts are formed following the infiltration of susceptible hydrothermal fluids in the direction of secondary tectonic structures. Therefore, in this study, in order to show the role and importance of these structural controllers in the formation of storage and distribution of mineralizing fluids, in parallel with petrographic and geochemical studies, various Remote sensing methods were used. Also, by examining the results of analysis of 174 soil samples in the region, the presence of four geochemical paragenesis in the secondary halos of the mineral block was detected. The way of grouping the elements and the values obtained from the ratio of compound halos related to different horizons indicated the correlation of the axial distribution with the vertical direction. This indicates the role of steeply sloping faults in the distribution of mineralizing fluid in the region As copper and molybdenum deposit elements show the highest concentration in the center of the system and super-deposit elements in the direction of faults and in the periphery of the region. On the other hand, the significant presence of tectonized joints and microstructures in the western part has prepared the conditions for the impact of mineralizing factors as well as erosion. As we see more concentrated anomalies of deeper element molybdenum than copper in the western half. This is also true for the geochemical paragenesis of lead and zinc elements relative to arsenic and antimony. anomalous areas to structural elements, show the steep slope of deep faults

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