Geochemical and Hydrothermal Alteration Patterns of the Abrisham-Rud Porphyry Copper District, Semnan Province, Iran

In this study, the zonality method has been used to separate geochemical anomalies and calculate erosional levels in regional scale for porphyry-Cu deposit, Abrisham-Rud (Semnan province, East of Iran). maps multiplicative haloes, co-existence both supra-ore elements sub-ore local maxima implied blind mineralization northwest study area. Moreover, considering calculated indices two previously presented models, E NW have introduced as ZDM BM, respectively. For comparison, geological layer created by combining rock units, faults, alterations utilizing K-nearest neighbor (KNN) algorithm. The units faults identified from map; moreover, detected using remote sensing ASTER images. map related area, many parts high potential areas; addition, only confirmed each other at south area suggested part mineralization. Therefore, areas could be or not. Due incapability identifying levels, mineralogy investigation recognize level; however, because cost, is not recommended application on a scale. findings demonstrated that successfully distinguished including BM without dependent alteration was able predict levels. more powerful than layer.