San Jose Drill Program Cuts 104.9m of 283 g/t Ag + 2.48 g/t Au
Vancouver, British Columbia, May 30, 2007: Continuum Resources Ltd. (TSXV: CNU) is pleased to report the contents of the following news release issued today by Fortuna Silver Mines Inc. ("Fortuna"):
Fortuna Cuts 104.9m of 283 g/t Ag + 2.48 g/t Au at San Jose
May 30, 2007: Fortuna Silver Mines Inc. (FVI: TSX-V) ("Fortuna"): Mr. Jorge Ganoza, President of Fortuna, is pleased to announce initial drill results from the 2007 drill program at the San Jose silver-gold deposit located in Oaxaca, Mexico which is being explored and developed under a joint venture between Fortuna (76%) and Continuum (24%). Analytical results have been received for the first two drill holes in the initial 11,000m phase of the drill program.
Drill hole SJO-054 returned 283 g/t Ag and 2.48 g/t Au (410 g/t Ag Eq) over a continuous mineralized drill length of 104.9m, which includes several intervals of high-grade silver-gold mineralization. The true width of the mineralized zone is estimated at 83 meters. This hole is located in the central portion of the Trinidad high-grade shoot and intersected the mineralized zone between 310m to 400m vertically below the collar of the surface shaft.
Drill hole SJO-053 was collared to the east of SJO-054 and encountered the mineralized zone between approximately 370 to 470 meters below the surface. Assay results for both holes are summarized below. A long section showing the location of the intersections will be posted on the Fortuna website shortly (www.fortunasilvermines.com).
Length-weighted assay averages have been calculated using a lower cut-off of 100 g/t Ag-equivalent. Silver equivalency estimates were derived using US$10.30/oz for silver and US$525/oz for gold yielding a Ag:Au ratio of 51:1. Metallurgical recoveries and net smelter returns are assumed to be 100% for purposes of estimating silver equivalency.
NB: Estimated true width is approximately 80% of interval in table.
|
From (m) |
To (m) |
Interval (m) |
Au (g/t) |
Ag (g/t) |
Ag Eq (g/t) |
Ag Eq (oz/T) |
SJO-054 |
360.70* |
465.55 |
104.85 |
2.48 |
283 |
410 |
12.0 |
includes |
360.70 |
367.00 |
6.30 |
7.0 |
510 |
867 |
25.3 |
|
411.25 |
417.60 |
6.35 |
4.5 |
692 |
922 |
26.9 |
|
425.30 |
438.10 |
12.80 |
4.6 |
633 |
867 |
25.3 |
|
446.00 |
455.00 |
9.00 |
8.3 |
848 |
1272 |
37.1 |
SJO-053 |
442.20 |
444.70 |
2.50 |
1.2 |
260 |
322 |
9.4 |
|
462.10 |
464.70 |
2.60 |
2.4 |
279 |
399 |
11.6 |
* Cut-off not applied.
The San Jose deposit is a low sulfidation epithermal system located within the Taviche Mining District in southern Oaxaca and is characterized by multiphase quartz-carbonate-sulfide stockwork veining and hydrothermal brecciation within a sequence of Tertiary andesitic volcanic and volcaniclastic rocks. Under prior ownership, the Trinidad zone was developed on a small scale and partially mined to approximately 150m below surface.
Using a cut-off grade of 150 g/t Ag equivalent, 43-101 compliant indicated and inferred mineral resources for the Trinidad zone at San Jose are estimated at (see Fortuna News Release dated Mar. 12, 2007):
Indicated Mineral Resources: 1.47 million tonnes grading 262.6 g/t Ag + 2.19 g/t Au
containing 17.7 million Ag equivalent oz
Inferred Mineral Resources: 3.9 million tonnes grading 260.6 g/t Ag + 2.57 g/t Au
containing 49.1 million Ag equivalent oz.
The Fortuna-Continuum joint venture controls mining concessions covering approximately 47,440 hectares in the Taviche Mining District. A first phase 11,000 meter drill program is currently being carried out at the Trinidad zone with 3 diamond drill rigs. Concurrently, surface geochemical and reconnaissance programs are being conducted throughout the district to identify and evaluate new target areas.
Quality Control & Quality Assurance
For the current drill program, following detailed geological and geotechnical logging, drill core samples are split on-site by diamond saw. One half of the core is submitted to the ALS Chemex sample preparation facility in Guadalajara, Mexico. The remaining half core is retained on-site for verification and reference purposes. Following preparation, sample pulps are sent to ALS Chemex in Vancouver where they are assayed for gold and silver by standard fire assay methods using a gravimetric finish. Multi-element analyses are also completed for each sample by ICP methods. The QA-QC program at San Jose includes the blind insertion of certified reference standards for silver and gold at a frequency of approximately 1 per 20 normal samples and the insertion of assay blanks at a frequency of approximately 1 per 20 normal samples. All sample results reported in this news release correspond to NQ-diameter core. Further drill
results will be released as analytical data are received and validated.
Qualified Person
Mr. Gregory Smith, P.Geo. is Fortuna's Qualified Person as defined by National Instrument 43-101, and is responsible for the accuracy of this news release.
Background
In addition to the San Jose deposit, Continuum is actively exploring 11 separate gold-silver projects in the state of Oaxaca, where Continuum has acquired approximately 50,000 hectares, covering the entire Natividad district, including the Natividad Mine. Natividad historically produced over 1,000,000 ounces of Gold and 23,000,000 ounces of Silver. The Natividad project is being explored by underground diamond drilling by Continuum, and Continuum has discovered a new, mineralized zone within which drilling has outlined a previously-unexplored resource as an extension to the historic deposit.
On behalf of the Board of Continuum Resources Ltd.
"Warren M. McIntyre"
Warren M. McIntyre, Corporate Secretary and Director
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