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Gandi Gold Mineral Modelling
 
  Page 1
 
   Abstract:
   Gandy gold deposit is located 7 km NE Sodfeh, 15 km NE Mo'aleman, 130 km SE Damghan, Iran.
   The study area, mainly composed of nearly flat hills, divided into eastern and western part by an alluvial fan. A long nearly N-S stream passes through the larger part, i.e. eastern part.
   The mineralization in the area mainly occurred as veins along fractures and faults resulted from vertical and horizontal movements of Torud and Anjilu faults.
   One hundred and ten mineralized veins were recognized, the trend of which were NE-SW dipping 40o to 90o.
   The length of the veins varies from 3.5 to 234.5 m, the total length of which amounts to 5833 m. The veins are not simply a single or individual veins, sometimes cross-cutting each other or forming a zone of veins and veinlets. Veins are several centimeters to 1.5 m thick.
   Mineralized veins in the Gandy area are brecciated, silisified and carbonated, brown in color, when secondary iron oxide minerals exist.
   During exploration, 115 trenches were dug perpendicular to the vein zone and 38 boreholes were drilled.
   Determination of the ore body shape and geometry was accomplished based on the data from 8 out of the 110 veins using Gemcom software.
   After arranging the data and preparation of informational tables, data from exploration excavations such as trenches and boreholes were made into 3-dimensional models, the 3-D model of the veins were delineated, the vertical geological sections drawn and finally the oxidized part and total reserve estimated.
 
 
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