Kimber Resources (AMEX:KBX) (TSE:KBR) announced Thursday results from a further ten holes at its Monterde project in Mexico, intersecting high grade gold and silver over notable widths below the current deposit resource.
Nine of the holes were drilled at the Carmen deposit, with the aim of expanding and upgrading the mineral resources amenable to underground extraction, while one hole was drilled into Veta Minitas, to boost existing high grade resources.
Drill hole MTRD-513 returned 26.6 grams per tonne (g/t) gold and 12.1 g/t silver as well as anomalous base metals over 4.5 metres, demonstrating the continuity of high grade mineralization over a strike length of 125 metres, the company said.
"The intercept of 4.5 metres grading 26.6 g/t gold and 12.1 g/t silver in hole MTRD-513 provides yet another excellent high grade gold-silver intersection in the Carmen structure, at a considerably deeper level than existing mineral resources, bolstering the potential for the definition of a deeper, high grade mineral resource under the currently defined Carmen deposit," said president and CEO Gordon Cummings.
"In addition, the Carmen, Cob and Hilos structures were intercepted at depth at the south end of the Carmen deposit in several holes, indicating potential for additional high grade gold-silver mineralization along strike to the south at deeper levels than previously drilled."
Indeed, hole MTRD-515 returned 2.5 metres grading 2.7 g/t gold and 8.8 g/t silver in the projection of the Carmen structure, and an interval from the hanging wall of the Hilos structure returned 1.5 metres grading 6.1 g/t gold and 127.0 g/t silver.
Drill hole MTC-126 also returned 2.9 metres of 2.6 g/t gold from the Cob structure. Kimber started a drilling program focused on the Cob structure in September, with the aim of exploring the depth and strike potential of the mineralization, as well as upgrading existing resources.
The company said a total of 12 drill holes are planned to test for extensions of the Cob structure, the first batch of which saw notable intersections, including 1.0 metre of 4.3 g/t gold and 5.7 g/t silver in hole MTC-134; and 3.9 metres of 1.8 g/t gold and 41.2 g/t silver in hole MTRD-506.
Meanwhile, drill hole MTRD- 521 was designed to test the strike extent of Cob to the north. The only significant value was 2.7 metres of 1.6 g/t gold and 22.7 g/t silver from a structure between Cob and Hilos, Kimber said.
At Veta Minitas, the first completed hole, LMRD-63, returned 5.5 metres of 1.0 g/t gold and 89.1 g/t silver. Diamond drilling at Veta Minitas will progress over the remainder of this year, with potential for expansion into 2012.
Kimber owns mineral concessions covering in excess of 39,000 hectares in the prospective Sierra Madre gold-silver belt, including the Monterde property, where three gold-silver mineral resources have already been defined. The most advanced of these, the Carmen deposit, has been extensively drilled and has undergone detailed geologic modeling.
Since the last mineral resource estimate, Kimber has drilled over 32,000 metres at Carmen. Because of the high grade discoveries below the current resource, the company said the inclusion of the new results could lead to changes in open pit configuration and require more underground mine planning to optimize project economics.
At the Monterde property, a preliminary economic assessment (PEA), which was updated in June 2011, estimated measured mineral resources of 2.54 million tonnes grading 0.88 g/t gold and 102.4 g/t silver for 71,700 ounces of gold and 8.37 million ounces of silver, at a 0.3% cut-off grade.
The PEA also estimated a 15.5-year mine life, in an open pit-underground production scenario. Total life-of-mine capital costs were projected at US$119.3 million, with total anticipated production of 744,000 ounces of gold and 20.2 million ounces of silver over the mine life.
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