3D processing of airborne magnetic data identifies additional copper-gold porphyry targets at the Gaoua project



    TSX: VTR

    TORONTO, April 2 /CNW/ - Volta Resources Inc. ("Volta" or the "Company")
(TSX:VTR) is pleased to announce that 30 copper-gold porphyry targets have
been highlighted from three dimensional ("3D") processing and interpretation
of high resolution airborne magnetic data recently obtained on the Company's
Gaoua copper-gold porphyry project in southern Burkina Faso, West Africa.
    A high-resolution helicopter-borne magnetic and radiometric survey was
completed by New Resolution Geophysics of South Africa ("NRG") in the third
quarter of 2008. The survey covered 634km(2), covering most of the Gaoua
project area. The area was flown at low altitude, along east-west oriented
flight lines spaced 100 metres apart, with regular tie-lines.
    The Company subsequently engaged Carl O. Windels, Consulting Geophysicist
from Arvada, Colorado, to undertake 3D processing of the newly acquired
airborne magnetic data with a view to fingerprint known copper-gold porphyry
mineralization on the Gaoua Project as well as define potentially new, yet
similar targets. A FastMag3D visualization Techbase Block Model was produced
utilizing 3D inversion software obtained from the Geophysical Inversion
Facility at the University of British Columbia. The model was then examined
using a 3D viewer for recognizable patterns related to contacts, structures
and intrusive stocks usually associated with porphyry deposits. Targets were
then generated by interpreting regional trends utilizing:

    
    -   FastMag3D block model, sliced at 150m below surface (Figure 1), used
        to infer offsets from linear magnetic contacts
    -   Anomalous radiometric signatures based on thorium/potassium ratios
        related to mineralizing fluids, used to infer dilation zones
        (Figure 2)
    -   Near Surface RTP regional reduced to pole data (Figure 3) and Deep
        Seated regional RTP reduced to pole data (figure 4) to target areas
        in proximity to known mineralization and interpreted deep seated
        magnetic features.

    To see Figures 1 to 4, please go to:
    http://files.newswire.ca/407/020409VTRPR4Figures.pdf
    

    A total of 30 targets, including the known mineralization at Gongondy,
Dienemera, Mont Biri and Boussera, have been identified for follow-up
geochemical sampling and/or shallow auger drilling where transported cover may
have masked the surface expression of the mineralization.
    The value of this data processing methodology has been clearly
demonstrated and therefore warrants further detailed 3D inversion block
models, using the same data over selected target areas. The highest priority
for this work is along the 6 kilometer gap between the Dienemera and Gongondy
deposits, which have an initial NI43-101 compliant Inferred Resource of
82,600,000 tonnes grading 0.40% copper and 0.40 g/t gold for a total of
724,880,000 lbs of copper and 1,072,900 ounces of gold (using a 0.45% copper
equivalent ("CuEQ") cut off grade)(*).
    Under the guidelines of National Instrument 43-101, the qualified person
for the Gaoua copper-gold project is Mr. Guy Franceschi, Vice President,
Exploration for the Company. Mr. Franceschi is a member of the European
Federation of Geologists and has reviewed and approved the contents of this
news release.
    Volta is a mineral exploration company primarily focused on becoming the
leader in the identification, acquisition and exploration of gold properties
in West Africa. The Company is committed to West African exploration and is
Canadian-based with its head office in Toronto, Ontario and operations offices
in Accra, Ghana and Ouagadougou, Burkina Faso.

    
    (*) CuEQ has been calculated from assumed revenues of USD 3,000 per tonne
        of copper and USD 700 per ounce of gold with metallurgical recovery
        assumed to be 85% and 70% respectively based on initial QEMSCAN
        results. Gold grade has been multiplied by 0.6 and added to the
        copper grade to provide CuEQ grade. The cut off grade further assumes
        typical costs of USD 2 per tonne for mining and USD 10 per tonne for
        processing and general administration costs (See Volta's "Mineral
        Resource Estimation For The Gaoua Project, Burkina Faso" NI 43-101
        Technical Report on SEDAR dated March 23, 2009).

    The Toronto Stock Exchange does not accept responsibility for the
    adequacy or accuracy of this news release.
    

    Forward Looking Information Caution:

    This press release presents "forward-looking statements" within the
meaning of Canadian securities legislation that involve inherent risks and
uncertainties. Forward-looking statements include, but are not limited to,
statements with respect to the future price of gold and other minerals and
metals, the estimation of mineral reserves and resources, the realization of
mineral reserve estimates, the capital expenditures, costs and timing of the
resources, the realization of mineral reserve estimates, the capital
expenditures, costs and timing of the development of new deposits, success of
exploration activities, permitting time lines, currency exchange rate
fluctuations, requirements for additional capital, government regulation of
mining operations, environmental risks, unanticipated reclamation expenses,
title disputes or claims and limitations on insurance coverage. Generally,
these forward-looking statements 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 statements are subject to known and unknown risks,
uncertainties and other factors that may cause the actual results, level of
activity, performance or achievements of Volta to be materially different from
those expressed or implied by such forward looking statements, including but
not limited to: risks related to international operations, risks related to
the integration of acquisitions; risks related to joint venture operations;
actual results of current exploration activities; actual results of current or
future reclamation activities; conclusions of economic evaluations; changes in
project parameters as plans continue to be refined; future prices of gold and
other minerals and metals; possible variations in ore reserves, grade or
recovery rates; failure of equipment or processes to operate as anticipated;
accidents, labour disputes and other risks of the mining industry; and delays
in obtaining governmental approvals or financing or in the completion of
development or construction activities. Although the management and officers
of Volta believe that the expectations reflected in such forward-looking
statements are based upon reasonable assumptions and have attempted to
identify important factors that could cause actual results to differ
materially from those contained in forward-looking statements, there may be
other factors that cause results not to be as anticipated, estimated or
intended. There can be no assurance that such statements 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 statements. Volta Resources does not
undertake to update any forward-looking statements that are incorporated by
reference herein, except in accordance with applicable securities laws.

    %SEDAR: 00026749E




For further information:

For further information: please refer to our website
www.Voltaresources.com or contact: Kevin Bullock, P.Eng., President & CEO,
Tel: (416) 867-2299, Fax: (416) 867-2298, Email: kbullock@voltaresources.com;
Investor Relations: Vancouver, Farah Alibhai, Tel: (604) 731-7340, Email:
falibhai@voltaresources.com

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