Alder Defines Near Surface, Drill-Ready, Copper-Gold-Silver,
Surface-Enriched and Oxide Exploration Targets and Develops Staged
Value Building Plan
HISTORIC DRILL HOLES RETURN UP TO 2.08% CU OVER 47.5 METRES
TORONTO, ONTARIO--(Marketwired - Mar 18, 2014) - Alder Resources
Ltd. ("Alder" or the "Company") (TSX-VENTURE:ALR) has refined its
value development plan to include a plan to drill test near-surface
copper-gold-silver surface-enriched and oxide targets on its Rosita
project in Nicaragua.
A review of near-surface exploration targets, in management's
opinion, indicates potential for 2 to 5 million tonnes grading from
1.0% to 2.0% copper equivalent(1) from three known near surface
copper-gold-silver enriched (supergene) and oxide mineralization
zones. These targets, which can be tested with a drill program
expected to cost approximately $500,000, in management's opinion,
represent the best potential exploration investment return on the
property.
The potential quantity and grade of the exploration targets
described in this news release are conceptual in nature, there has
been insufficient exploration to define a mineral resource in
respect of these targets and it is uncertain if further exploration
will result in these targets being delineated as a mineral
resource. Alder has not yet done sufficient work to verify the
historical drill results reported in this news release and does not
intend to use this information for purposes other than planning and
prioritizing exploration targets.
In addition to the previously explored near surface targets,
several new copper-gold-silver supergene and oxide targets have
been developed (see summary figure 1). A summary of the
targets in order of priority follows:
• R13/R13 West
- Historic drill holes at R13 returned up to 2.08% Cu over 47.5
metres and 0.98% Cu over 79.9 metres (see figure 2) in two
parallel, interpreted, near-surface mineralized zones 130 metres by
450 metres and 90 metres by 300 metres in size, respectively. These
intercepts need to be validated by drilling as there is no other
way to validate the historic results.
• Tipispan
- Alder trench results returned up to 5.21% Cu, 4.6 g/t Au and
144.01 g/t Ag over 12.0 metres with zone open across strike
(see figure 3).
- Supergene mineralization developed over Cu-Au-Ag mineralized
porphyry zone that is cut by up to six northwest-trending high
grade cross-structures. Target area is approximately 700 metres by
250 metres.
• T3
- Alder's work returned trench results of 2.09% Cu, 0.24 g/t Au
and 14.6 g/t Ag over 29.0 metres and two drill hole intercepts
returned 1.74% Cu, 0.09 g/t Au and 16.64 g/t Ag over 18.0 metres
and 1.23% Cu, 0.36 g/t Au and 10.63 g/t Ag over 13.0 metres,
respectively (see Figure 4). The initial target area is
approximately 100 metres by 200 metres.
• Santa Rita pit
- Supergene Cu-Au-Ag mineralization has been documented around
the historic Santa Rita pit where sampling by Calibre Mining Corp.
has returned 3.26% Cu, 0.15 g/t Au and 55.82 g/t Ag over 8.3
metres(2) and 0.96% Cu, 1.06 g/t Au and 9.33 g/t Ag over 12.0
metres(2).
• Intersection of the northwest-trending Tipispan trend with the
northeast-trending Santa Rita mine trend. Target area is
approximately 400 metres by 750 metres in size.
• Intersection of the northwest-trending El Rastro trend with
the northeast-trending Santa Rita Mine trend. Target area is
approximately 100 metres by 600 metres in size.
Don Dudek, President and CEO of Alder, is quoted: "Alder has
determined that a staged development plan is most likely to provide
the best return at a lower risk to shareholders with a short-term
focus on those near term, high value opportunities first, followed
by the development of the larger scale porphyry and skarn targets
either when this work can be supported by cash flow or stronger
markets. The near-surface, copper-gold-silver supergene-enriched
targets are what supported historic production of 5.4 million
tonnes grading 2.06% Cu, 0.93 g/t Au and 15.08 g/t Ag and
represent, in management's opinion, the best potential return per
exploration dollar on the property. The copper-gold-silver
supergene and oxide zones occur throughout the property and make
excellent, inexpensive exploration targets. These zones have
potential to materially increase the value of the property for a
modest exploration cost."
A summary of Alder's updated value building plan is as
follows:
Value Building Plan |
|
Expected Timing |
Determine metallurgy of 8 million tonne(3) on surface stockpile(4)
and 1.75 and 2.25 million tonne target tailings resource(5) |
|
3 months - 2014 |
Define additional supergene mineralization - targeting 2-5 million
tonnes at 1.0% to 2.0% Cu equivalent(6) |
|
6 months, 2014 |
Complete PEA |
|
4 months, late 2014 |
Complete infill drill program of stockpiles and near surface zones
that have been defined |
|
early 2015 |
Initial production of stockpile and supergene in the event of a
positive feasibility study, cost determined by metallurgy and
PEA |
|
To be determined |
Continued exploration of large scale porphyry and skarn Cu-Au-Ag
deposits |
|
2017-2018 |
R13 Target Area
The R13 and R13 West areas lie just east of the Santa Rita open
pit (see figure) and were subject to historical mining via an up to
25 metre deep, shallow open pit. A historic plan map for this area
displays drill intercepts of up to 2.08% Cu over 47.5 metres in a
presumed vertical hole (see figure). No gold or silver assays are
recorded, however mill records and remnant stockpile grades suggest
that gold grades could be approximately 0.75 g/t Au for every 1% Cu
and that silver grades would be close to 15 g/t Ag. Assuming that
the drill hole intercepts represent a near surface supergene zone,
which was the original mine target, the existing intercept data was
modeled and the result was the delineation of two,
northwest-trending, inverted, triangle-shaped zones, R13 and R13
West. These zones can be traced for 450 metres and 300 metres along
strike and range from 130 metres to 90 metres wide, respectively.
Assuming a density of 2.0 tonnes per cubic meter and weighted
copper grades, the modeled mineralization solids represent an
exploration target of 1,000,000 to 3,500,000 tonnes, after
subtracting for material assumed to have been mined. Based on the
historic drill data, targeted grades range from 0.90% copper to
0.95% copper with estimated gold and silver grades of approximately
0.5 g/t Au to 1.0 g/t Au and 10 g/t Ag to 20 g/t Ag, representing a
copper equivalent target grade ranging from 1.30% to 1.80% (using a
copper price of US$3.00/lb, gold price of US$1,300 per ounce and a
silver price of $20 per ounce). Alder plans to drill-test this
target with 39 to 45 holes on 50 metre centres averaging from 30 to
35 metres deep, having an estimated cost of approximately US$150
per metre and totaling US$200,000 to US$250,000. An added benefit
to this target area is that the mineralization continues to depth.
An Alder drill hole that intersected the down-dip extension of the
R13 zone at 150 metres below the surface returned 33.0 metres
grading 0.72% Cu, 0.24 g/t Au and 21.95 g/t Au (1.09% Cu
equivalent). The true width of this intercept is not known.
Tipispan Target Area
Tipispan, the second priority target area (see figure), is
estimated to be at least 700 metres by 250 metres in size. Two
historic drill holes, active artisanal mining and Alder trenching
and soil geochemical data suggest that this area is underlain by a
mineralized monzanite porphyry intrusion that has been cut by six,
5 to 15 metre wide, northwest-trending, higher grade mineralized
structures that developed supergene enriched zones at surface (see
figure). These mineralized structures and porphyry are in turn cut
by barren granitic dykes, the extent of which are unknown at this
time. Trenching has returned grades of up to 5.21% Cu, 4.6 g/t Au
and 144.01 g/t Ag over 12.0 metres with mapping indicating that the
supergene zone extends below un-mineralized overburden where no
sampling has taken place. An exploration model for this area
envisions overlapping zones of supergene mineralization developing
over both the mineralized monzonitic porphyry and the mineralized
northwest-trending cross structures. Assuming a target area of 500
metres by 200 metres with an average thickness of 5 metres and a
density of 2.0 tonnes per cubic metre, this area could host a near
surface exploration target of 500,000 tonnes to 1,000,000 tonnes of
approximately 1.0 to 1.8% copper equivalent (0.7% to1% copper, 0.25
to 1 g/t Au and 10 to 20 g/t Ag) as well as deeper-rooted
mineralized cross-structures and copper-gold-silver mineralized
porphyritic monzonite porphyry. An initial program of 25 vertical,
25 metre deep holes on three fences 100 metres apart has been
designed to evaluate the extent of the supergene mineralization and
two holes have been planned to test below an active artisanal mine
zone on one of the mineralized cross-structures. This initial
program is estimated to cost approximately US$150,000 to
complete.
T3 Target Area
The T3 area, which represents an exotic oxide Cu zone, lies on a
hillside below an interpreted northerly-trending mineralized
cross-structure. Surface trenching has returned up to 2.09% Cu,
0.24 g/t Au and 14.6 g/t Ag over 29.0 metres and two drill hole
intercepts returned 1.74% Cu, 0.09 g/t Au and 16.64 g/t Ag over
18.0 metres and 1.23% Cu, 0.36 g/t Au and 10.63 g/t Ag over 13.0
metres, respectively. Based on trench and topographic data, this
zone of exotic Cu-Au-Ag mineralization is estimated to extend
approximately 100 metres along strike, 150 metres down slope and is
at least 10 metres thick. Assuming a density of 2.0 tonnes per
cubic metre, this represents a target of approximately 250,000 to
350,000 tonnes grading from 1.0% to 2.0% Cu equivalent (1.0% to
1.5% Cu, 0.25 to 0.5 g/t Au and 10.0 to 15.0 g/t Ag) . This target
can be tested by 16, 15 metre deep holes drilled on a 25 metre by
25 metre grid with an estimated cost of $40,000.
Additional known copper supergene mineralization lies proximal
to the historic Santa Rita pit, where chip sampling by Calibre
Mining Corp. returned up to 3.26% Cu, 0.15 g/t Au and 55.82 g/t Ag
over 8.3 metres, and just east of the R13 zone, where historic
drilling returned an intercept of 0.66% Cu over 16.2 metres in what
could represent a third mineralized northwest trending structure in
the R13 area. Additional work is required to define the tonnage and
grade potential of these zones.
Following the same targeting methodology as in the R13 zone
area, there is also a reasonable possibility that additional blind
supergene Cu-Au-Ag mineralization may occur where well known
mineralized trends like the Tipispan trend intersects the Santa
Rita trend and where the El Rastro trend intersects the Santa Rita
trend and at Zopilote, where historic records indicate sulphide and
oxide resources of 260,000 tonnes grading 0.92% Cu (no gold and
silver grades were recorded). These specific blue sky target areas
and other intersecting structural zones represent reasonable
Cu-Au-Ag supergene targets that should be tested in subsequent
programs.
A qualified person has not done sufficient work to classify the
historical estimate reported above as current mineral resources or
mineral reserves and Alder is not treating the historical estimate
as current mineral resources or mineral reserves.
Qualified Persons
Don Dudek, P. Geo., Alder's President and CEO and a qualified
person as defined by NI 43-101, has reviewed and approved the
scientific and technical content of this news release.
About Alder Resources Ltd.
Alder is a resource company focused on the development of gold
and base metal projects throughout the Americas. Alder's
exploration program is focused on the Rosita project in Nicaragua
located 275 kilometres northeast of Managua. The company has
current Inferred mineral stock pile resources of 7.95 million
tonnes grading 0.62% Cu, 0.46 g/t Au and 9.21 g/t Ag. See the
technical report entitled "Rosita Cu-Au-Ag Project, RAAN,
Nicaragua, NI 43-101 Technical Report on Mineral Resource Estimate
of Rosita Stockpiles" effective as of May 8, 2012, which is
available under the Company's profile at www.sedar.com.
In August 2011, Alder entered into an option agreement to
acquire a 65% interest in the Rosita D concession from Calibre
Mining Corp. by issuing 1,000,000 shares and incurring expenditures
of $4,000,000 over four years. To date Alder has incurred
approximately $3.3 million of the $4.0 million obligation and has
until October 2015 to incur the remaining project expenditures.
For additional information, please visit our website at
www.alderresources.ca and follow us on Facebook and Twitter:
@AlderResources.
Cautionary Note Regarding Forward-looking Information
This press release contains "forward-looking information" within
the meaning of applicable Canadian securities legislation.
Forward-looking information includes, without limitation,
statements regarding the Company's mineral resource estimate,
potential mineralization, future plans and the exploration targets.
Generally, forward-looking information can be identified by the use
of forward-looking terminology such as "plans", "expects" or "does
not expect", "is expected", "budget", "scheduled", "estimates",
"forecasts", "intends", "anticipates" or "does not anticipate", or
"believes", or variations of such words and phrases or state that
certain actions, events or results "may", "could", "would", "might"
or "will be taken", "occur" or "be achieved". Forward-looking
information is subject to known and unknown risks, uncertainties
and other factors that may cause the actual results, level of
activity, performance or achievements of Alder to be materially
different from those expressed or implied by such forward-looking
information, including but not limited to: general business,
economic, competitive, geopolitical and social uncertainties; the
actual results of current exploration activities; risks associated
with operations in foreign jurisdictions; ability to successfully
integrate the purchased properties; and other risks inherent in the
mining industry. Although Alder has attempted to identify important
factors that could cause actual results to differ materially from
those contained in forward-looking information, there may be other
factors that cause results not to be as anticipated, estimated or
intended. There can be no assurance that such information will
prove to be accurate, as actual results and future events could
differ materially from those anticipated in such statements.
Accordingly, readers should not place undue reliance on
forward-looking information. Alder does not undertake to update any
forward-looking information, except in accordance with applicable
securities laws.
NEITHER 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.
(1) 0.7% Cu to 1.5% Cu, 0.25 g/t Au to 1.0 g/t Au and 10 g/t Ag
to 20 g/t Ag. Cu @ US$3.00/lb, Au @ US$1,300/oz and Ag @
US$20/oz
(2) Calibre Mining Corp. news release July 13, 2011. Calibre is
Alder's joint venture partner on the Rosita Property
(3) As reported in the news release issued by Alder on May 9,
2012, the inferred resource estimate totals 7.95 mt, at an average
grade of 0.62% Cu, 0.46 g/t Au and 9.2 g/t Ag with an overall
copper equivalent grade of 1.01%. The inferred mineral resource
contains 108 million pounds of Cu, 118,500 ounces of Au and 2.35
million ounces of Ag.
(4) See Data in NI 43-101 Technical Report entitled "Technical
Report on Mineral Resource Estimate of the Rosita Stockpiles" dated
June 22, 2012 and filed on SEDAR.
(5) Targeted grade of tailings resource 0.14 to 0.30% Cu, 0.52
to 0.57 g/t Au and 6.37 to 12.55 g/t Ag
(6) 1.0% to 2.0% Cu equivalent ranges 0.7% Cu to 1.5% Cu, 0.25
g/t Au to 1.0 g/t Au and 10 g/t Ag to 20 g/t Ag. Cu @ US$3.00/lb,
Au @ US$1,300/oz and Ag @ US$20/oz
To view Figure 1, please visit the following link:
http://media3.marketwire.com/docs/933947_FIG_1.pdf
To view Figure 2, please visit the following link:
http://media3.marketwire.com/docs/933947_FIG_2.pdf
To view Figure 3, please visit the following link:
http://media3.marketwire.com/docs/933947_FIG_3.pdf
To view Figure 4, please visit the following link:
http://media3.marketwire.com/docs/933947_FIG_4.pdf
Alder Resources Ltd.Michael
McAllister416-309-2134info@alderresources.cawww.alderresources.ca
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