Mirasol Reports Initial Results of Phase 3 Drilling at the Virginia Silver Project

VANCOUVER, Jan. 26, 2012 /CNW/ - Mirasol Resources Ltd. (TSX-V: MRZ, Frankfurt: M8R)  is pleased to announce partial assay results for Phase 3 diamond drilling at the Virginia Project which was completed in December 2011, including complete drill results from the Martina and Naty Extension vein holes, and partial assay results from the Ely South Vein. Phase 3 drilling indicates that Martina and Ely South are likely to host silver deposits which add to the four previously discovered deposits (Julia North, Central and South veins, and Naty Vein) on the 100%-owned Virginia Silver Project in Santa Cruz Province, Argentina.

Highlights at Naty Extension include 1.5 metres of 797 grams per tonne (g/t) silver in VG-096 and 2.0 metres of 214 g/t silver including 0.3 metres of 1,195 g/t silver in VG-097 (Table 1). Martina Vein highlights include 3.8 metres of 155 g/t silver within a broad intercept of 25.4 metres grading 61 g/t silver in VG-119B, and 10.9 metres of 63 g/t silver, including 1.1 metres of 141 g/t silver, in VG-122A. Ely South highlights include 21.8 metres of 79 g/t silver including 1.9 metres of 495 g/t silver in VG-113, and 18.2 metres of 63 g/t silver including 4.5 metres of 109 g/t silver in VG-111.

Phase 3 drilling was undertaken in five principle areas, four of which previously had a single scout hole (Figure 1). Results are reported herein for all Phase 3 holes drilled at the Martina Vein, all holes drilled at Naty Extension, and the first eight holes at Ely South (Table 1). Remaining holes at Ely South, Ely North, Julia South and three holes at Julia Central, will be reported in future news releases when assays are received.

In Phase 3 nine new holes were drilled at the Martina Vein northwest of scout hole VG-089A (Figure 2).  Eight of nine Martina holes contained significant intercepts above a 30 g/t silver cutoff.  Martina is characterized by broad, often 10 to 20 metre wide, intercepts of silver mineralization hosted by oxidized, brecciated, altered rock and minor quartz veinlets.  Typically in these shallow holes a strong, central vein is not well developed.  It is interpreted that the level of exposure of the hydrothermal vein may be higher than in the Julia Vein to the west, suggesting that deeper drilling could encounter better silver values at depth. Several new holes were twinned to improve sample recovery and ensure that lower recovery did not affect the assay results.  In two cases improved recovery resulted in little change in the assay values, and in the other case grades were somewhat lower (Appendix A). To date, Martina has been tested by ten holes along 400 metres of strike length and remains open along strike in both directions and to depth.

Table 1. Virginia Silver Project Phase 3 Partial Results - Highlights

Hole From 
  (m)
To
   (m)
Core
Length
(m)
True
Width   
(m)1
Silver
(g/t) 2,3
Silver grade x
true width
(g/t * m)
Core
Recovery
(%)4
Martina Vein
VG-093 34.00 53.00 19.00 13.0           62              804           95
including 37.25 38.00 0.75 0.5         244              125           89
VG-094A* 24.37 44.20 19.83 13.0           61              797           93
including 26.94 30.53 3.59 2.4         119              280           93
and 66.50 67.26 0.76 0.5         173                86         100
VG-119B* 27.00 65.65 38.65 25.4           61           1,541           94
including 42.75 48.50 5.75 3.8         155              585           91
VG-122A* 74.54 87.90 13.36 10.9           63              692           89
including 83.00 84.30 1.30 1.1         141              150           69
VG-123 24.86 29.47 4.61 3.0           57              172           98
VG-125 53.00 64.00 11.00 7.2           46              330           96
including 55.80 56.30 0.50 0.3         272                89           99
Naty Extension Vein
VG-096 48.70 50.75 2.05 1.5         797           1,176           95
VG-097 21.25 24.15 2.90 2.0         214              423           73
including 23.05 23.50 0.45 0.3      1,195              367           81
VG-102 19.50 49.30 29.80 21.1           22              457           96
including 48.75 49.30 0.55 0.4           90                40         100
VG-116 42.40 43.88 1.48 1.3           80              105           95
Ely South Vein
VG-110 47.18 61.15 13.97 9.5         100              951           97
including 58.87 60.55 1.68 1.1         556              637           93
VG-111 37.47 62.00 24.53 18.2           63           1,144           92
including 56.00 62.00 6.00 4.5         109              487           98
VG-112 29.80 39.94 10.14 7.4         163           1,206           99
including 29.80 35.02 5.22 3.8         219              834           98
and 86.35 92.00 5.65 4.1         122              503           97
including 87.90 90.60 2.70 2.0         210              415           99
VG-113 63.00 97.00 34.00 21.8           79           1,735           97
including 87.80 90.75 2.95 1.9         495              939           91

Notes:   All analyses done by Alex Stewart Argentina S. A. laboratory.

  1. True widths have been estimated using cross sections of the mineralized intercepts with the geology of the drill hole and surface information and adjacent holes and cross sections.
  2. Silver grades have not been capped and are thus "uncut".
  3. Intercepts are calculated at a 30 g/t silver cutoff with no value given to gold or lead.  "Included"   intercepts are selected so as to show higher grade intervals.
  4. Core recovery is the length weighted average ("LWA") of the intercept quoted.
  5. Hole designated with an asterisk * are twins which have been redrilled with the objective of increasing the core recovery. Complete results for original and twin holes are in Appendix A.

Drilling at Naty Extension included five new holes near VG-086, a scout hole drilled during Phase 2. These holes intersected mineralization of variable grade and thickness with local high grade values (Figure 3). Farther north, a second cluster of seven holes targeted an IP chargeability anomaly in an area with little or no outcrop, where prospecting had located scattered mineralized quartz vein float blocks. Holes directed at the IP chargeability anomaly (VG-098, 099 and 100) did not intersect mineralization as expected but did cut wide zones of pervasive silicification with silver values of less than 30 g/t yet failed to explain the source of mineralized quartz blocks. Additional holes VG-101, 102 and 103 were drilled further uphill and to the east along magnetic lineaments parallel to the IP chargeability anomaly and intersected metre-scale, silver bearing quartz veins. The chargeability anomaly remains unexplained, as this type of pervasive silicification, lacking abundant iron oxides, has not been noted previously at Virginia. Additional interpretation is required, but it is possible that the source of the IP chargeability anomaly lies at greater depth, beneath the broad silicification. If so, further drilling is warranted. A 390 metre long chargeability anomaly between the two areas remains untested.

At Ely South, assays are presented for eight new holes, and results are pending for eight additional holes drilled to greater depth and along strike to the south (Figure 3). All Ely South holes contain intercepts exceeding 30 g/t silver cutoff, with excellent core recovery in the mineralized zones (Appendix A). Based on early visual observations, additional holes were drilled to depth at Ely South. Visual observations from the deeper holes suggest that the silver mineralization continues to depth.  The presence of silver sulphosalts similar to those identified in the Julia Vein, were also observed at depth in the Ely Vein. To date, Ely South silver mineralization has been confirmed at or near surface over a strike length of 345 metres, and remains open along strike and at depth.

"Initial Phase 3 drilling results indicate that the Martina and Ely South veins are taking shape as new silver deposits and therefore expand the Virginia Project's scope to six silver zones", stated Mary Little, Mirasol's president.  Drilling already underway as Phase 4 is expected to expand these six deposits along strike and to depth. The new Martina and Ely South discoveries share characteristics with the Julia - Naty vein system in that they are deeply oxidized, near-surface deposits and have potential for definition of high-quality, silver mineralization that may be amenable to low cost, open-cut mining techniques.

Paul G. Lhotka, Principal Geologist for Mirasol, is the Qualified Person under NI 43-101 who has approved the technical content of this news release.

Quality Assurance/Quality Control:
Exploration at Mirasol's Projects is supervised by Stephen C. Nano, Vice President of Exploration; Timothy Heenan, Exploration Manager; and Paul Lhotka, Principal Geologist who is the Qualified Person under NI 43-101.  All technical information for the Company's projects is obtained and reported under a formal quality assurance and quality control (QA/QC) program. Drill core, rock chip and stream sediment samples are collected under the supervision of Company geologists in accordance with standard industry practice. Samples are dispatched via commercial transport to an ISO 9001:2000-accredited laboratory in Argentina for analysis. Results are routinely examined by an independent geochemist to ensure laboratory performance meets required standards.

Assay results from diamond drill core or RC drill samples may be higher, lower or similar to results obtained from surface samples.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

Appendix A. Virginia Silver Project - Phase 3 Results for Naty Extension, Martina and Ely South (partial) - New Drill Hole Results

Hole From
(m)
To
  (m)
Core
Length
(m)
True
Width  
  (m)1
Silver
(g/t) 2,3
Silver grade x
true width
(g/t * m)
Core
Recovery
(%)4
Martina Vein
VG-092 87.00 107.00 20.00 12.9           40              513           98
VG-093 37.25 38.00 0.75 0.5         244              125           89
and 66.00 83.00 17.00 11.6           40              458           97
VG-094 24.00 42.00 18.00 11.8           88           1,045           87
including 25.65 29.00 3.35 2.2         257              566           42
and 58.00 70.50 12.50 8.2           36              294           87
VG-094A* 24.37 44.20 19.83 13.0           61              797           93
Including* 26.94 30.53 3.59 2.4         119              280           93
and* 62.50 71.04 8.54 5.6           50              280           98
Including* 66.50 67.26 0.76 0.5         173                86         100
VG-119 26.00 57.00 31.00 20.3           77           1,559           83
including 42.80 51.75 8.95 5.9         159              935           47
VG-119A* 27.00 62.00 35.00 23.0           69           1,579           71
Including* 43.00 56.00 13.00 8.5         107              909           53
VG-119B* 27.00 65.65 38.65 25.4           61           1,541           94
including* 42.75 48.50 5.75 3.8         155              585           91
VG-122 76.00 92.00 16.00 13.1           60              792           66
VG-122A* 74.54 87.90 13.36 10.9           63              692           89
including 83.00 84.30 1.30 1.1         141              150           69
VG-123 24.86 29.47 4.61 3.0           57              172           98
and 50.66 51.22 0.56 0.4           46                17           97
VG-124 5.60 41.00 35.40 23.7           33              774           98
VG-125 53.00 64.00 11.00 7.2           46              330           96
including 55.80 56.30 0.50 0.3         272                89           99
Naty Extension Vein
VG-095 101.93 104.00 2.07 1.2           38                46           96
VG-096 48.70 50.75 2.05 1.5         797           1,176           95
and 82.35 83.12 0.77 0.5           38                20           88
VG-097 21.25 24.15 2.90 2.0         214              423           73
including 23.05 23.50 0.45 0.3      1,195              367           81
and 38.50 40.70 2.20 1.5           48                72           95
and 68.00 79.10 11.10 7.6           42              319           99
VG-098 no significant intercepts
VG-099 no significant intercepts
VG-100 68.00 70.00 2.00 1.3           71                93           94
VG-101 20.50 23.53 3.03 2.2           51              111           96
and 34.50 35.00 0.50 0.4           50                18           95
combined 20.50 35.00 14.50 10.4           26              271           95
VG-102 19.50 22.33 2.83 2.0           36                72           97
and 32.00 38.00 6.00 4.2           35              148           99
and 48.75 49.30 0.55 0.4           90                40         100
combined 19.50 49.30 29.80 21.1           22              457           96
VG-103 38.79 39.16 0.37 0.2           21                  5           92
VG-115 53.00 55.00 2.00 1.3           31                40           99
and 83.00 85.00 2.00 1.3           33                42         100
VG-116 42.40 43.88 1.48 1.3           80              105           95
VG-117 no significant intercepts
Ely South Vein
VG-107 89.23 97.50 8.27 5.1           40              201           98
VG-108 47.56 50.65 3.09 2.1           50              106           98
VG-109 44.52 57.50 12.98 8.9           41              361           91
VG-110 47.18 61.15 13.97 9.5         100              951           97
including 58.87 60.55 1.68 1.1         556              637           93
VG-111 37.47 62.00 24.53 18.2           63           1,144           92
including 56.00 62.00 6.00 4.5         109              487           98
VG-112 29.80 39.94 10.14 7.4         163           1,206           99
including 29.80 35.02 5.22 3.8         219              834           98
and 63.72 67.00 3.28 2.4           59              143         100
and 86.35 92.00 5.65 4.1         122              503           97
including 87.90 90.60 2.70 2.0         210              415           99
VG-113 63.00 97.00 34.00 21.8           79           1,735           97
including 87.80 90.75 2.95 1.9         495              939           91
VG-114 92.00 93.68 1.68 1.1           66                74         100

Notes:   All analyses done by Alex Stewart Argentina S. A. laboratory.

  1. True widths have been estimated using cross sections of the mineralized intercepts with the geology of the drill hole and surface information and adjacent holes and cross sections.
  2. Silver grades have not been capped and are thus "uncut".
  3. Intercepts are calculated at a 30 g/t silver cutoff with no value given to gold or lead.  "Included"   intercepts are selected so as to show higher grade intervals.
  4. Core recovery is the length weighted average ("LWA") of the intercept quoted.
  5. Hole designated with an asterisk * are twins which have been redrilled with the objective of increasing the core recovery.

 

 

SOURCE Mirasol Resources Ltd.

For further information:

Mary L. Little 
President and CEO

Tel: (604) 602-9989; Fax: (604) 609-9946

Email: contact@mirasolresources.com
Website: www.mirasolresources.com


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