Dunav Resources Announces the Discovery of a New Gold-Silver-Base Metal Epithermal System, Part of the Tulare Project
09.01.2013 | Marketwire
Drill hole BKDD001 intersects 11 m @ 5.13 g/t Au, 346 g/t Ag, 1.19% Cu, 2.36% Pb & 1.86% Zn (14.5 g/t AuEq)LONGUEUIL, QUEBEC -- (Marketwire) -- 01/09/13 -- Dunav Resources Ltd. (TSX VENTURE: DNV) (the "Company" or "Dunav") is pleased to present an exploration update on its 100% held Tulare Copper-Gold Porphyry Project located in Southern Serbia.
1. HIGHLIGHTS
-- Late in the 2012 field season, four very wide-spaced diamond drill holes
were completed on the Bakrenjaca carbonate-base metal gold epithermal
system which is located 3 km south from the Kiseljak copper-gold
porphyry deposit. All four drill holes intersected epithermal-style
mineralization.
-- Results have now been returned from this initial 'scout' drilling
program which was designed to follow-up on encouraging surface trench
results. The area of mapped alteration and epithermal mineralization
covers an area of approximately 1.5 km x 1 km and significant
intersections are listed below, calculated using a 0.4 g/t AuEq cut-off
grade:
----------------------------------------------------------------------------
From To Interval Au Ag Cu Pb Zn AuEq
Hole ID (m) (m) (m) (g/t) (g/t) (%) (%) (%) (g/t)
----------------------------------------------------------------------------
BKDD001 36 40 4 0.48 5.53 0.03 0.46 0.38 0.96
BKDD001 64 68 4 0.11 5.85 0.11 0.07 0.05 0.43
BKDD001 100 111 11 5.13 346 1.19 2.36 1.86 14.5
BKDD001 116 127 11 0.37 7.82 0.08 0.23 0.88 1.09
BKDD002 9 16 7 0.48 1.34 0.00 0.07 0.86 0.89
BKDD002 28 31 3 0.50 0.88 0.00 0.05 0.12 0.59
BKDD002 35 42 7 0.84 1.10 0.01 0.04 0.10 0.93
BKDD002 49 79 30 0.36 1.70 0.01 0.12 0.28 0.58
BKDD002 132 137 5 0.07 1.10 0.03 0.18 0.83 0.55
GUDD001 80 85 5 0.14 4.14 0.04 0.24 0.34 0.52
GUDD001 95 98 3 0.19 5.97 0.01 0.56 0.14 0.60
GUDD001 156 160 4 0.23 6.70 0.01 0.20 0.12 0.49
GUDD001 170 173 3 0.11 3.77 0.05 0.18 0.32 0.45
GUDD001 178 182 4 0.15 7.58 0.05 0.57 0.47 0.78
GUDD001 231 235 4 0.49 6.82 1.12 0.05 0.01 2.41
GUDD001 296 317 21 0.11 4.91 0.07 0.85 1.13 1.12
GUDD001 323 326 3 0.01 2.87 0.07 0.78 2.40 1.48
GUDD001 447 452 5 0.03 0.76 0.05 0.27 0.46 0.42
GUDD002 11 15 4 0.20 2.10 0.00 0.22 0.33 0.46
GUDD002 35 39 4 1.03 13.3 0.05 0.84 1.45 2.28
GUDD002 47 51 4 0.10 8.77 0.06 0.27 0.22 0.55
GUDD002 141 144 3 0.10 1.79 0.00 0.34 1.60 0.93
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- 0.4 g/t AuEq cut-off ($1,500/oz. Au, $25/oz Ag, $3.50/lb. Cu,
$0.90/lb. Pb, $0.90/lb. Zn), 3 m minimum composite length, 3 m maximum
internal dilution.
-- AuEq = ((Au g/t x 48.226)+(Ag g/t x 0.8038)+(Cu% x 77.16)+(Pb% x
19.84)+(Zn% x 19.84)) / 48.226
- Diamond drill samples are PQ, HQ or NQ half core, using a nominal 1m
sampling basis and weigh approx. 3-6 kg.
- Assay method: Fire assay Au (50 g); Ag, Cu, Pb & Zn by aqua regia
digestion with AAS and/or ICPMS finish.
- Intercept widths do not necessarily represent true width.
- No top cut applied.
-- The recently announced Kiseljak copper-gold mineral resource, prepared
by AMC Consultants Limited (UK), an independent mining consulting firm,
has been estimated at 300,500,000 tonnes grading an average of 0.27%
copper and 0.26 g/t gold in the inferred resource category for 1.8
billion pounds of copper and 2.5 million ounces of gold, using a 0.25%
copper equivalent cut-off.
-- The Tulare Copper-Gold Porphyry Project comprises several porphyry
copper-gold targets including Kiseljak, Yellow Creek, Trlica and
Calovica vis South and also includes the Bakrenjaca carbonate-base metal
gold epithermal vein system; all target areas are located within 3,000
meters of the Kiseljak deposit (refer to Figure 1). Dunav controls 100%
of this newly identified porphyry cluster, located within the Lece
Volcanic Complex.
-- G Mining Services Inc. (Montreal) have been contracted to manage the
Preliminary Economic Assessment (PEA) of the Tulare Copper-Gold Porphyry
Project.
2. TRENCHING AT BAKRENJACA
-- First pass exploration trenching was completed at Bakrenjaca based on
the detailed soil geochemistry (nominal 100 meter by 25 meter grid)
which had previously outlined a strongly anomalous Au-Ag-Cu-Pb-Zn zone
over an approximate area of 1.5 km by 1 km. Individual soil samples
returned up to 5.37 g/t Au, 39.3 g/t Ag, 0.58% Cu, 1.35% Pb and 0.62% Zn
(refer to Figure 4).
-- It should be noted that the initial first pass trenching program was
largely predicated on areas where access was readily available; all
significant intersections are listed below, calculated using a 0.4 g/t
AuEq cut-off grade:
----------------------------------------------------------------------------
From To Interval Au Ag Cu Pb Zn AuEq
Trench ID (m) (m) (m) (g/t) (g/t) (%) (%) (%) (g/t)
----------------------------------------------------------------------------
BKTR003 0 3 3 0.38 6.50 0.01 0.41 0.20 0.75
BKTR003 16 19 3 0.12 3.80 0.01 0.30 0.30 0.44
BKTR005 4 8 4 0.04 0.63 0.00 0.15 1.02 0.54
BKTR006 6 15 9 0.20 1.13 0.00 0.17 0.26 0.40
BKTR007 6 19 13 0.23 1.11 0.01 0.33 0.76 0.71
BKTR011 30 46 16 0.53 1.06 0.00 0.24 0.11 0.69
BKTR012 14 23 9 0.32 0.96 0.02 0.17 0.79 0.76
BKTR013 1 6 5 0.89 10.1 0.11 0.54 0.11 1.50
BKTR014 0 8 8 0.04 0.75 0.97 0.09 0.13 1.69
BKTR015 1 23 22 0.39 8.02 0.08 0.40 0.68 1.10
BKTR016 56 71 15 0.44 2.85 0.01 0.19 0.05 0.61
BKTR018 20 36 16 0.16 14.3 0.29 0.36 0.17 1.08
BKTR019 0 46 46 0.48 16.4 0.21 0.28 0.69 1.50
BKTR021 0 15 15 0.25 5.03 0.11 0.67 0.04 0.80
BKTR021 21 27 6 0.11 1.67 0.04 0.52 0.03 0.42
BKTR021 34 41 7 0.57 4.29 0.06 0.81 0.06 1.09
BKTR021 50 55 5 0.55 8.50 0.06 0.70 0.01 1.07
BKTR021 80 84 4 0.18 4.08 0.05 0.29 0.01 0.45
BKTR022 3 26 23 1.03 11.6 0.31 2.65 0.37 2.96
BKTR023 4 15 11 0.18 2.72 0.08 0.47 0.09 0.58
----------------------------------------------------------------------------
- 0.4 g/t AuEq cut-off ($1,500/oz. Au, $25/oz Ag, $3.50/lb. Cu, $0.90/lb.
Pb, $0.90/lb. Zn), 3 m minimum composite length, 3m maximum internal
dilution.
-- AuEq = ((Au g/t x 48.226)+(Ag g/t x 0.8038)+(Cu% x 77.16)+(Pb% x
19.84)+(Zn% x 19.84)) / 48.226
- Trench samples are designed to replicate HQ half core, using a nominal 1m
sampling basis and weigh approx. 3-6 kg.
- Assay method: Fire assay Au (50 g); Ag, Cu, Pb & Zn by aqua regia
digestion with AAS and/or ICPMS finish.
- Intercept widths do not necessarily represent true width.
- No top cut applied.
-- Dunav has since extended the exploration trenching program to cover
larger areas of interest that have become apparent following the 2012
drilling and mapping program. These trench sampling results are expected
to be available during Q1 2013.
-- Refer to Table 2 for a summary of all exploration trench intersections
at various AuEq cut-off grades for all Bakrenjaca trenches to date;
BKTR001 to BKTR024.
-- Refer to Figure 2 for the location of all trenching and diamond drilling
completed to date within the Bakrenjaca mineralized 'footprint' and to
Figure 3 for a representative cross-section through the Bakrenjaca
target area.
3. DRILLING AT BAKRENJACA
-- Four diamond drill holes have been completed at Bakrenjaca for a total
of 1,051.6 meters.
-- All four drill holes intersected epithermal-style mineralization, which,
given the initial wide-spaced 'scout' drill hole spacing, may be viewed
as very encouraging.
-- In general, the level of surface oxidation is low with sulfide
mineralization commencing within 10 meters of the surface.
-- Drill hole GUDD001 (498.7 m) was the deepest hole drilled into the
target area and it is of particular interest that epithermal-style
mineralization was intersected throughout the drill hole, which
indicates that there is epithermal mineralization occurring over a
minimum 400 meters vertical extent within the Bakrenjaca target area.
-- Refer to Figure 2 for the location of all trenching and diamond drilling
completed to date within the Bakrenjaca mineralized 'footprint' and to
Figure 3 for a representative cross-section through the Bakrenjaca
target area.
-- Refer to Table 1 for a summary of all exploration diamond drill hole
intersections at various AuEq cut-off grades for all Bakrenjaca drill
holes to date (BKDD001 to BKDD002 and GUDD001 to GUDD002).
4. GEOLOGY AND MINERALIZATION STYLE
-- The Bakrenjaca carbonate-base metal gold epithermal vein system is
located approximately 3 km south of the Kiseljak deposit and comprises
east-west trending corridors of sheeted to stockwork manganese carbonate
+/- quartz gold-silver-base metal veins hosted within argillic
(sericite-illite-smectite) altered andesitic volcanics, volcaniclastics
and sediments. Mapped zones of mineralization at surface range from less
than one meter to greater than thirty meters width.
-- Based on this initial drilling program Dunav has noted two differing
styles of epithermal mineralization:
-- 'Hangingwall-style' mineralization associated with manganese
carbonate (rhodochrosite) +/- quartz/chalcedony veining within the
volcano-sedimentary package which contains Au-Ag-Pb-Zn (sphalerite,
galena and pyrite) mineralization and display typical epithermal
textures such as colloform-crustiform banding.
-- 'Footwall-style' mineralization as evidenced by BKDD001 (100-111m)
which has high grade Au-Ag-Cu-Pb-Zn mineralization and is located at
the low angle contact between the metamorphic basement (gneiss) and
the overlying volcano-sedimentary package. Carbonate replacement
textures (bladed quartz) indicative of boiling are evident within
this high grade zone.
-- See Figure 3 for a representative cross-section through the Bakrenjaca
target area.
5. DISCUSSION
-- Carbonate-base metal-gold epithermal deposits represent some of the most
prolific gold producers in the SW Pacific rim (e.g. Victoria Veins-Far
Southeast Lepanto, Philippines); they have also been recognized in the
Andes of South America, North America and in the Carpathian Mountains
(Western Tethyan) of Eastern Europe.
-- The Tulare Copper-Gold Porphyry Project is located in southern Serbia,
approximately 230 km from Belgrade and 70 km from the regional centre of
Nis. Access to the project is excellent via sealed roads. A rail heading
is available some 45 km from the project area at the city of Leskovac,
or 30 km to the northwest at the town of Kursumlija. Reticulated power
passes close to the project area.
-- The Tulare Copper-Gold Porphyry Project area lies within the Lece
Volcanic Complex of southern Serbia; the second largest magmatic complex
in Serbia after the Timok Magmatic Complex.
-- Preliminary metallurgical test work on diamond drill core samples from
Bakrenjaca will be selected and dispatched during Q1 2013.
-- Dunav plans to commence a detailed drill assessment of the Bakrenjaca
target area during the first half of 2013 in order to determine the
potential mineralized footprint of that epithermal system.
6. SAMPLING AND ANALYSIS
The majority of soil samples have been assayed at the ALS Chemex laboratory, Perth, Australia. More recent soil sampling programs have been assayed at the SGS managed laboratory at Chelopech in Bulgaria using a combination of ICP-OES and ICP-MS, whereas gold has been assayed by low level detection fire assay method (50 gram sample charge) with an AAS finish. Trench samples were prepared at the laboratory facility at SGS Bor and the samples have been assayed at the SGS managed laboratory at Chelopech in Bulgaria or the SGS managed laboratory facility at Bor. Diamond drill core has been prepared at the laboratory facility at Bor and assayed at the SGS managed laboratory at Bor. Trench and diamond drill samples have been assayed for gold by 50 gram fire assay with an AAS finish whilst copper, silver, lead, zinc and molybdenum have been analysed using an aqua regia digest with either an AAS or ICPMS finish. A one metre sampling interval has been used where possible for the Tulare Copper-Gold Porphyry Project diamond drilling program. Half core is routinely submitted to the laboratory for analysis. Following Dunav standard quality assurance procedures, a full suite of field and laboratory duplicates and replicates along with internationally accredited standards and blanks, have been submitted with each batch of samples.
Trench sampling was carried out as channels in the wall just above the trench floor on 1 meter intervals. Except where extensive soil cover is encountered, trenches were sampled in their entirety. The samples were routinely weighed prior to final bagging to maintain an even sample size and to avoid sampling bias in harder rock types. An average channel sample weight was maintained at 3 kilograms per meter, which produces a consistent sample weight approximating half HQ core samples. Field duplicate samples were taken every 20 samples and known standards were inserted into the sample stream after every 20th sample. A geological and structural log was completed as for diamond drilling. All data collected in the field was routinely entered into geology and structural geology spread sheets using Field Marshal software for subsequent entry to an acQuire database and validation.
Dr Julian F. H. Barnes, a qualified person under NI 43-101, the Company's Special Consultant, has supervised the preparation of the technical data in this press release.
About Dunav Resources Ltd.: Dunav Resources is a mineral exploration company focused on the acquisition, exploration and development of mineral properties in Serbia. Additional information about the Company is available on SEDAR at www.sedar.com and at www.dunavresources.com.
Dunav had approximately $2.0 million in its treasury at November 30, 2012. Dunav's issued and outstanding share capital totals 119,242,942 common shares, of which approximately 47.3% is held by Dundee Precious Metals Inc.
Cautionary Statement
This press release contains forward-looking statements and information. In particular, this press release contains statements concerning exploration results and geological interpretation, planned exploration and development programs, results of drilling and metallurgical testing, completion of a preliminary economic assessment, and the geological and economic potential of the Tulare Porphyry Copper-Gold Project. Readers should not place undue reliance on forward looking information. By its nature, forward-looking information involves a variety of assumptions, known and unknown risks and uncertainties, and other factors, all of which may cause actual results or events to differ materially from those anticipated in the forward-looking information. Specifically, the Company's planned exploration and development programs depend on the ability of the Company to obtain additional financing and such plans may be delayed. Given the nature of capital market demand for speculative investment opportunities such as mineral exploration projects and current financial conditions globally, there is no assurance that additional financing will be available in the appropriate amount when required.
Although the Company believes, in light of all circumstances, that the expectations reflected in this forward-looking information are reasonable, the Company can give no assurance that they will prove to be correct. The forward-looking statements contained in this press release are made as of the date hereof and the Company undertakes no obligations to update publicly or revise any forward-looking statements or information, whether as a result of new information, future events or otherwise, unless so required by applicable securities laws.
Figures 1 to 4 and Tables 1 and 2 are available at the following address: http://media3.marketwire.com/docs/DNV_Annexes0109.pdf
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 press release.
Contacts:
Dunav Resources Ltd.
James Crombie, President and Chief Executive Officer
+1.450.640.0810
info@dunavresources.com
www.dunavresources.com