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TORONTO, ONTARIO -- (Marketwired) -- 05/07/13 -- Alder Resources Ltd. ("Alder" or the "Company") (TSX VENTURE: ALR) is pleased to provide exploration and corporate highlights for the Rosita Project in northeast Nicaragua (Figure 1). Highlights include:
-- Expanded Tipispan porphyry target footprint to 350 metres by 250 metres and open in all directions.-- Discovery of new target (Naranjal) defined by coincident soil geochemical anomalies over an area 500 metres by 400 metres located 2 kilometres northeast of Tipispan porphyry prospect.-- Commencement of metallurgical testing of tailings material focused on recoverable gold and silver.-- Composite sample of North stockpile collected for metallurgical testing.
Company President and CEO, Joseph Arengi, states: "Delineating a high grade supergene blanket associated with high angle structures above a copper-silver-gold porphyry system at Tipispan was a milestone achievement by our exploration team. We now have drill-ready targets that are continuing to be refined by the ongoing work programs. The exploration team continues to discover high quality targets that are expected to add significant value to the Company going forward."
Tipispan Porphyry Copper Target
The Company has advanced the Tipispan porphyry copper prospect through trenching and soil sampling (Figure 1). Historic drilling from 2010 intersected porphyry style alteration and mineralization in two drill holes located 250 metres apart. One hole, designed to test high grade copper oxide mineralization in an old prospect pit, returned 0.42% Cu and 7.00 g/t Ag over 50.0 metres within a wider zone that returned 0.21% Cu and 3.49 g/t Ag over 117.0 metres. Trenching by Alder returned high grade copper-gold-silver-lead-zinc mineralization in supergene oxide zones in several intervals from three trenches located above and north of this drill hole. Trench results are summarized in Table 1. The second drill hole was designed to test for extensions of gold-bearing material worked by artisanal miners. This hole returned 0.51% Cu, 0.25 g/t Au and 10.41 g/t Ag over 11.5 metres within a wider low grade interval that returned 0.13% Cu, 0.16 g/t Au and 2.11 g/t Ag over 61.9 metres. Grab samples collected from artisanal miners workings at two sites 50 metres and 100 metres northwest of the drill hole collar returned 4.18% Cu, 1.46 g/t Au, 34.50 g/t Ag, 11.15% Pb and 12.62% Zn and 4.46% Cu, 10.84 g/t Au, 97.40 g/t Ag, 0.33% Pb and 3.28% Zn, respectively. The high grade, polymetallic mineralized zones obtained from trenching and grab sampling are interpreted as high angle structures that transect the broad porphyry style mineralization intersected in the two historic drill holes. These structures served as conduits for mineralizing hydrothermal fluids. These drill intercepts have not yet been followed up. Collectively, the footprint of the Tipispan porphyry target is 350 metres by 250 metres and open in all directions.
Table 1. Summary of assay results from trenching at Tipispan.---------------------------------------------------------------------------- Length(i) Cu Au Ag Pb ZnTrench (m) (%) (g/t) (g/t) (%) (%)---------------------------------------------------------------------------- less than10 8.3 1.65 0.17 23.25 0.10 0.10---------------------------------------------------------------------------- less than11 12.0 0.22 0.10 1.64 0.15 0.10----------------------------------------------------------------------------12 6.5 7.48 2.36 316.13 1.40 3.28---------------------------------------------------------------------------- 6.0 2.66 0.28 113.11 0.16 1.70---------------------------------------------------------------------------- 3.0 5.04 0.49 225.40 0.16 3.30----------------------------------------------------------------------------13 12.1 5.21 4.40 144.01 2.42 0.67----------------------------------------------------------------------------including 2.0 0.48 11.30 48.80 0.33 0.19----------------------------------------------------------------------------and 5.3 11.31 3.00 284.67 4.92 1.30----------------------------------------------------------------------------14 Low grade----------------------------------------------------------------------------(i) Width represents sampled width; true widths are unknown at this time.
