Separation of geochemical anomalies of gold-copper by concentration -Number Fractal (C-N) method in southeast of Nain
Subject Areas :B. Gholipour 1 , A. Kananian 2 , Sh. Niroomand 3 , A. Tarhani 4 , M. Fersowsi Rashed 5
1 - University of Tehran
2 - Tehran University
3 - University of Tehran
4 -
5 -
Keywords: Elemental logging, Concentration-number fractal, Qalehdar mining area, Geochemical anomaly.,
Abstract :
In this paper, concentration-number fractal method was used to study regional exploration and geochemical anomaly separation; also anomalies of index elements including gold, arsenic, silver, copper, antimony, lead, zinc and molybdenum in the Qalehdar exploration area (Isfahan province) was investigated. For this purpose, 336 samples of rock units were collected and analyzed by ICP-MS. Then the chemical analysis data were categorized and prepared after replacing the sensor data for processing..Using concentration-number fractal method, elemental anomalies in that area was identified and the anomalies were mapped. The results of geochemical studies in the area showed that different geochemical anomalies of Au, Mo, Cu, As, Sb, Pb, Zn are closely related to alteration zones and shallow plutons. These studies also led to the identification of a geochemical system.. After drawing the geochemical maps and identifying the anomalous regions, the anomalies of the various elements were correlated and a zoning was recognized. In this zoning from the center to the outside of the system,the anomalies respectively, include molybdenum (Mo), copper-molybdenum (Cu Mo), lead-zinc (Pb Zn) anomalies and finally the gold-arsenic anomaly (As Au) which is located at the periphery of the system.
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