The results of the 2012 Kara Beldyr program are being compiled to determine the size and scope of the 2013 exploration program.
In the fourth quarter of 2012, 18 diamond drill holes were completed and final results were received for 23 holes. Fifteen infill and step-out holes were drilled at the Ortacam North deposit, and a single hole each was completed at the Ortacam deposit (ODD96), Kizilagil (ODD71) and Devetasi (ODD78). Better results from the quarter include:
ODD70 (step-out): 0.6 g/t Au over 106.6 metresODD74 (step-out): 1.0 g/t Au over 35.8 metresODD79 (infill): 0.9 g/t Au over 67.3 metresODD80 (infill): 3.3 g/t Au over 196.3 metresODD81 (infill): 1.4 g/t Au over 73.4 metres 0.9 g/t Au over 56.2 metres EOHODD82 (infill): 0.4 g/t Au over 212.5 metresODD83 (step-out): 0.6 g/t Au over 106.0 metresODD84 (step-out): 1.1 g/t Au over 33.9 metresODD85 (infill): 1.4 g/t Au over 209.5 metresODD86 (infill): 2.2 g/t Au over 269.2 metresODD87 (infill): 2.5 g/t Au over 248.0 metresODD88 (infill): 1.0 g/t Au over 238.8 metresODD89 (infill): 1.1 g/t Au over 143.4 metresODD90 (infill): 1.1 g/t Au over 176.0 metres 0.6 g/t Au over 115.4 metresODD91 (infill): 0.7 g/t Au over 44.4 metres 0.6 g/t Au over 169.4 metresODD92 (step-out): 0.8 g/t Au over 42.7 metresODD93 (step-out): 0.6 g/t Au over 30.0 metresODD94 (infill): 1.2 g/t Au over 170.6 metresODD96 (infill): 0.6 g/t Au over 67.2 metres 0.5 g/t Au over 69.4 metres
True widths for the mineralized zones are from 50 to 90% of the stated intercept.
Results from holes ODD70-89 were previously reported in Centerra Gold's news release of December 12, 2012. Results from holes ODD90-94 and ODD96 are new results received after the December 12th news release. All of these drilling results have been used in the year-end resource calculation.
Step-out drilling at 100-metre spacing has closed off the Ortacam North deposit to the north and west beyond the limits of the diatreme-breccia host rock. The deposit remains open to the east, beneath andesite cover, and to the southeast towards the smaller Ortacam deposit. The deposit is also open at depth below the oxide/sulphide boundary where several holes have intersected gold and supergene copper.
The Ortacam North deposit measures approximately 550 by 250-300 metres in plan and, locally, is up to 200 metres thick. The deposit is zoned outward from a core of massive silica breccia to enveloping vuggy quartz + alunite rock. Quartz-kaolinite rock, commonly developed in massive andesite, surrounds the deposit and generally contains less than 0.2 g/t gold.
PQ core from a metallurgical drill hole was composited into three sample types for bottle-roll and column leach test work at the SGS facility in Cornwall, England. Final results are expected in the first quarter of 2013 and will be used to plan a more extensive program of metallurgical drilling and column-leach test work.
Results were received for 99 core samples submitted for specific gravity measurements. The principal ore-bearing rock types - massive silica and vuggy quartz-alunite rock - displayed a wide range of values in the initial results. Another 117 samples were collected and submitted for analysis late in 2012. All 218 values have been used to assign densities in the year-end resource model.