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Astral Mining Corporation (TSX VENTURE: AA)(TSX VENTURE:
AA.WT)(PINK SHEETS: AAMJF)(FRANKFURT: A7DA) ("Astral" or "the
Company") is pleased to provide a progress report on the ongoing
exploration program on its Los Crestones property, Sinaloa State,
Mexico. Los Crestones covers 4,168 hectares and is located within
the Sierra Madre gold-silver belt of Western Mexico. Surface work
reported below is part of ongoing systematic exploration to refine
targets for first-ever diamond drilling programmed to commence in
the next two weeks.
Recent exploration activities included geological mapping, soil
sampling, and grab and chip sampling from outcrops and underground
workings. With these results the company has confirmed primary
zones of interest for diamond drilling. A number of vein/breccia
zones and showings have been identified on the project and are the
focus of continued sampling and mapping. Surface sampling to date
leads Astral to believe that the mineralized low sulphidation
epithermal system at Los Crestones traced for almost 1km shows
great potential in a proven gold-silver belt, host to a number of
past and present producing mines.
Highlights of recent exploration include;
-- 12m averaging 2.1g/t gold from hand trenching on the Corona breccia/vein
characterized by oxidized hydrothermal breccias and stockwork quartz
veining within argillically altered andesites (true width estimated to
be approx. 10m).
-- Grab sampling focused on mineralized exposures; best results were
returned from the Bohemia Vein including 32.2 g/t gold from sample
#301547 and 368g/t silver from sample # 301512. Both samples were
collected from within small historical underground workings on the
vein/breccia.
-- Gold-silver-copper in soil anomalies mapping known veins and indicating
vein extensions; soil results range up to 2.17g/t gold, 22.3 g/t silver
and 0.4% copper.
Fieldwork completed over the past 6 months was designed to;
-- confirm continuity and strike extent of known mineralized veins to aid
in drill targeting
-- explore for additional mineralized veins and breccias and evaluate
mineralized showings outside of the primary trend
-- increase understanding of the geological setting, including alteration
and structural controls
-- continue exploration for additional mineralization styles related to the
known low sulphidation vein/breccia system.
Results from the current program indicate that the known strike
lengths of the three largest outcropping vein/breccia occurrences
are approximately: 680m (Corona), 850m (Bohemia) and 930m (Indio).
Soil sampling has identified additional anomalies along strike of
known veins highlighting the potential for additional discoveries.
Hand trenching of altered volcanics at one site along the Corona
trend suggests mineralization is present within veins and also
hydrothermally fractured wallrocks. Additional soil and rock sample
anomalies adjacent to, and in between, the major known veins
warrant further work.
Astral interprets the exploration results to date on Los
Crestones to be highly encouraging and is progressing with plans
for diamond drilling. Concurrently, Astral's community relations
consultant is finalizing agreements with local stakeholders. A
2,500m drill program to test priority targets is planned to
commence shortly.
Technical Summary
Select Chip and Grab Sampling Highlights
Au Ag Loca- Brief
SampleID g/t g/t Cu_% Type Width tion Description
986116(i) 0.08 649(ii) 0.71 chip 3.0 Indio Vein outcrop,
quartz and
silicified
breccia
986115(i) 4.14 2.7 0.00 chip 3.0 Corona Oxidized
andesite
breccias
hosting thin
qtz
stockwork
veins
986114(i) 5.30 3.0 0.00 chip 3.0 Corona Oxidized
andesite
breccias
hosting thin
qtz
stockwork
veins
986107(i) 13.7(ii) 9.0 0.20 chip 3.0 Bohemia Mineralized
breccia, old
underground
workings
986104(i) 26.9(ii) 56 1.96(ii) chip 1.0 Bohemia Mineralized
breccia, old
underground
workings
301547 32.2(ii) 56 0.05 grab - Bohemia Hanging wall
vein, old
underground
workings
301541 9.0 8.2 0.65 grab 1.0 Bohemia Epithermal
vein, fault
Breccia,
silicified
301533 9.24 46 1.63(ii) grab - Bohemia Epithermal
vein/
breccia, old
underground
workings
301513 7.11 19 0.76 grab 1 Bohemia Stockwork
veinlets,
old workings
301512 3.42 368(ii) 3.89(ii) grab 0.5 Bohemia Silicified
vein/
breccia, old
workings.
301511 17.6(ii) 146(ii) 2.58(ii) grab 1.2 Bohemia Silicified
vein/
breccia, old
workings.
301510 3.49 16.0 0.07 chip 1.7 Indio Outcrop,
epithermal
breccia/vein
301509 2.90 13.9 0.06 chip 1.5 Indio Breccia/
stockwork
veining,
hanging wall
of mine
workings
300567 6.84 43.8 1.39(ii) chip 2.0 Bohemia Brecciated,
silicified
andesites,
underground
workings.
300565 3.04 3.4 0.11 chip 2.0 Bohemia Footwall Vein
and fault
breccia,
underground
workings
300564 4.31 24.6 0.50 grab - Bohemia Vein/breccia
with
granodiorite
dyke,
underground
workings
300561 3.87 38.7 0.76 grab - Indio Vein quartz
hosted by
granodio-
rite, mal,
bor, cpy,
py.
(i) samples previously reported (see Jan 11, 2011 news release)
(ii) results of overlimit analyses
Chip Sampling
Chip sampling and hand trenching focused on the three major
vein/breccia trends in the central showing area. Corona, Bohemia
and Indio "veins" are elongate siliceous bodies composed of true
quartz veins and silicified breccias hosting pyrite, chalcopyrite,
specular haematite, malachite and occasional galena and sphalerite.
The veins exploit structures oriented roughly north-south and dip
around 65 degrees to the east. The veins cut across an east-west
ridge and small-scale historical workings are evident on all three
veins on the southern flank of the ridge. The veins are observed to
reach up to 5m in width in outcrop and investigation of underground
workings show that the "veins" are composed of quartz veins
withinsilicified and mineralized breccia zones. A total of 292 chip
and grab samples have been collected in the course of exploration
work and elevated gold and silver values have been returned from
the three known occurrences as well as several additional
zones.
Hand Trenching
A total of 170m of hand trenching primarily focused along the
Corona trend, seen in outcrop as a strongly altered, limonitic zone
of shearing/brecciation host sporadic quartz/calcite veining.
Corona is less silicified and less visually obvious than the Indio
and Bohemia veins some 300m to the east. Previously reported
results from Astral's due-diligence sampling (see Jan 11, 2011 news
release) returned 3m averaging 5.3g/t gold and 3m averaging 4.14g/t
gold from rock surfaces exposed by historical trenching at Corona
and the intervals were considered to approximate a true width. Hand
trenching was conducted in areas where accessible and a best result
of 12m averaging 2.1g/t gold was returned from across this area in
oxidised, argillically altered andesites, true width of the
interval is approximately 10m. Trenching was completed downslope
and along strike from the old workings. Diamond drilling will test
this high priority mineralized structure.
Soil Sampling
Astral initially completed three orientation soil lines
perpendicular to the veins, Soil lines were 1km long, spaced 100m
apart and samples were collected on 25m centres. Anomalous results
were observed to reflect the location and orientation of the
expected mineralized trend. In particular, gold, silver and copper
values mapped the trace of known veins. Positive results prompted
Astral to expand the soil program. To date 602 samples have been
collected from 14 east-west lines for a total coverage of
approximately 140 hectares. Assay results range from below
detection up to 2.17g/t gold, 22.3 g/t silver and 0.4% copper in
soil. Maps showing gridded soil geochemical plans are provided on
Astral's website at
http://www.astralmining.com/los-crestones/losmaps.
Ongoing surface work includes further soil and rock sampling and
prospecting. Currently the site is accessible by ATV/quads only and
Astral is progressing with its application to upgrade the project
road to allow support vehicle access. A 2,500m diamond drilling
program utilizing a man-portable drill is programmed to commence
shortly.
Chip and grab samples were collected by Astral's team at Los
Crestones to provide representative indications of mineralization.
Where possible, samples were collected as continuous chips over
pre-determined lengths although in practice, the intense
silicification in some zones often made sampling along the chip
traces difficult. Astral has attempted to complete sampling
systematically and is highly encouraged by results to date. The
company is currently planning rigorous follow up work including
mechanical trenching/channel sampling and diamond drilling to
confirm results from reconnaissance sampling.
Samples were labeled, bagged and shipped to Acme Laboratories'
sample preparation facility in Guadalajara, Jalisco state where
they were received and prepared for shipment to Acme's Vancouver
laboratory for analysis. Samples were run for a multi-element suite
by aqua regia digestion of 0.5 g charge with ICP-MS finish (method
1DX1) and a standard 30g fire assay for gold (method 3B01). Samples
returning over-limit (greater than 10g/t) gold or (greater than
100g/t) silver were re-analysed by lead collection fire assay
fusion with a gravimetric analysis (method G603+G612). Samples
returning over-limit (10,000g/t) copper were re-analysed by method
7AX aqua regia digestion with ICP-ES/ICP-MS finish. Gold, Silver
and Copper results are tabulated above.
Technical details contained in this news release have been
reviewed by Dale Brittliffe, P.Geo., a Qualified Person as defined
in National Instrument 43-101 and Astral's V.P. Exploration.
Astral Mining Corporation is a Canadian company engaged in the
exploration and development of precious metal properties in North
America. By focusing on exploration in mining-friendly districts,
the Company minimizes the political and social risks encountered in
many other parts of the world. With a new gold discovery at the
Company's Jumping Josephine Gold Project in Southern British
Columbia and an experienced technical team and seasoned management,
Astral is poised to leverage this expertise into early exploration
success. Further details on Astral Mining Corporation and its
high-quality portfolio of exploration projects can be found at
www.astralmining.com.
ON BEHALF OF THE BOARD
Mr. Manfred Kurschner, President & CEO
Astral Mining Corporation
Cautionary Note to US Investors: This news release may contain
information about adjacent properties on which we have no right to
explore or mine. We advise U.S. investors that the SEC's mining
guidelines strictly prohibit information of this type in documents
filed with the SEC. U.S. investors are cautioned that mineral
deposits on adjacent properties are not indicative of mineral
deposits on our properties. This news release may contain
forward-looking statements including but not limited to comments
regarding the timing and content of upcoming work programs,
geological interpretations, receipt of property titles, potential
mineral recovery processes, etc. Forward-looking statements address
future events and conditions and therefore involve inherent risks
and uncertainties. Actual results may differ materially from those
currently anticipated in such statements.
2011 Number 11
The TSX Venture Exchange has not reviewed and does not accept
responsibility for the adequacy or the accuracy of this
release.
Contacts: Astral Mining Corporation Manfred Kurschner President
& CEO (604) 569-0800 info@astralmining.com
www.astralmining.com
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