PR, C. Jumil Drilling
Esperanza Extends Cerro Jumil's Southeast Zone
Wednesday June 20, 11:17 am ET
VANCOUVER, BRITISH COLUMBIA--(CCNMatthews - June 20, 2007) - Esperanza Silver Corporation (TSX VENTURE:EPZ - News; PINK SHEETS:ESPZF - News) is pleased to provide this update of the ongoing drilling program at its 100%-owned Cerro Jumil project in Morelos State, Mexico. Cerro Jumil is a potential open-pit, heap-leach operation with skarn-type mineralization.
Drilling is continuing with two rigs. Highlights of recent results of the Southeast Zone are:
Drillhole RCHE-07-12, a reverse circulation hole intersected an interval of 69 feet averaging 0.04 ounces gold per ton (21 meters at 1.53 grams per tonne).
Drillhole RCHE-07-14, a reverse circulation hole intersected an interval of 103 feet averaging 0.03 ounces gold per ton (31.5 meters at 1.08 grams per tonne).
Full results for recent drilling in the Southeast Zone are presented below:
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Cerro Jumil
Drill Highlights
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. From To
Drill Hole (meters) (meters) Interval Gold
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RCHE-07-09 135.0 148.5 13.5 m 1.69 gpt
44 ft .05 opt
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RCHE-07-10 169.5 180.0 10.5 m 1.15 gpt
34 ft .04 opt
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RCHE-07-11 No significant intervals
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RCHE-07-12 120.0 141.0 21.0 m 1.53 gpt
69 ft .05 opt
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RCHE-07-13 88.5 105.0 16.5 m 0.63 gpt
54 ft .02 opt
127.5 135.0 7.5 m 0.89 gpt
25 ft .03 opt
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RCHE-07-14 135.0 166.5 31.5 m 1.08 gpt
103 ft .03 opt
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RCHE-07-15 130.5 145.5 15.0 m 0.76 gpt
49 ft .02 opt
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opt are ounces per short ton; gpt are grams per metric tonne
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Southeast Zone Extended
As previously mentioned (News Release, March 22, 2007), a possible northeasterly extension of mineralization was first identified by a geophysical survey completed last summer. Holes RCHE-07-03 and RCHE-07-04 confirmed that the anomaly is related to gold skarn mineralization. As it stands now the Southeast Zone has been shown by drilling to be continuous for 2,200 feet (680 meters) along strike. The geophysical results indicate that it may continue for another 2,300 feet (700 meters) towards the northeast. A further 15 holes are planned to test the limits of mineralization in this direction, where it also appears to be shallower. Road and drill site construction is underway in order to gain access and evaluate this extension.
Exploration south of the Southeast Zone yielded areas of alteration but no significant intercepts of gold. Geologic interpretation indicates that any gold mineralization may be displaced by two or more faults. Further investigation will be required to determine if this is correct.
Resource Estimate Planned for Early 2008
The current drill program is designed to achieve three purposes: search for extensions of the two known gold zones (Southeast and West), to test other targets on the property, and to provide sufficient data from infill drilling for an initial resource estimate, planned for early 2008. The latest drill program began in late 2006 with one diamond core rig; a reverse circulation drill rig was added mid-January. A total of 70 holes, 40,900 feet (12,400 meters), are being completed for the infill portion of the drill program.
Heap-Leach Metallurgical Tests to Start
Material for column leach tests has been collected from two diamond-drill holes and will be shipped to SGS Mineral Services' laboratory in Durango, Mexico. These tests provide the best estimates for heap-leach recovery. Previous bottle-roll testing by SGS yielded gold recovery ranging from 88 to 96 percent under varying conditions of reagent concentrations, indicating potential for economic heap-leach recovery. Column leach tests will generally yield lower recoveries compared to bottle-roll tests but will be more indicative of heap-leach conditions.
About Esperanza
Esperanza is an exploration company focused on precious metals and is founded on the experience and success of its management and field teams in discovering ore bodies. Its properties include the San Luis high-grade gold and silver discovery in central Peru and the 100%-owned Cerro Jumil potential open-pit, heap-leach gold project in Morelos State, Mexico. It has other exploration interests in Peru, Mexico and Bolivia. The Company's objective is to take properties up to the resource definition stage and then find partners to take them ...........
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