Focus Confirms Historical Drill Assays at Aurora and Samples 18.8 m @ 0.77% Cu, 168 ppm Mo and 4.0 g/t Ag
VANCOUVER, March 11, 2013 /PRNewswire/ – Focus Ventures Ltd. (TSX-V: FCV) is
pleased to announce assay results from the re-sampling of historical
drill cores at its Aurora Cu-Mo project located in the Department of
Cuzco, southeastern Peru.
Thirteen holes drilled in 1999 and 2005 cut significant intervals of
copper and molybdenum mineralization, including 244m @ 0.48% Cu, 0.007%
Mo in DDA-1, 142m @ 0.5% Cu, 0.004% Mo in DDA-3, and 71.7m @ 0.7% Cu,
0.007% Mo in DDA-3A (see Focus news release July 11, 2012).
Selected intervals of mineralized half-core from drill holes DDA-1and
DDA-3A were re-assayed to determine levels of other elements such as
silver and gold, and confirm the reliability of the historical drill
assays. Only assay data for copper and molybdenum is available in the
historical drilling results. A total of 47.26m were sampled (34
The following table shows the new assay results for selected intervals
compared with the historical assays*.
Historical Weighted Average Grades Re-assayed Core Weighted Average Grades From To m Interval Cu % Mo Ag From To m Interval Cu % Mo Ag m m ppm g/t m m ppm g/t Hole DDA-1 270.0 280.0 10.0 1.02 70 n/a 270.5 279.5 9.0 0.71 73 3.4 284.0 290.0 6.0 0.99 54 n/a 284.1 290.3 6.2 0.77 46 4.7 Hole DDA-3A 364.0 384.0 20.0 0.89 167.2 n/a 365.2 384.0 18.8 0.77 168 4.0 226.0 230.0 4.0 0.94 20 n/a 226.3 230.8 4.5 0.62 12 2.8 236.0 244.0 8.0 0.96 63 n/a 235.3 244.0 8.7 1.11 68 4.9
* Due to factors including the slight difference in individual lengths of the historic and new sampled intervals, sample size (quarter core in the new assays compared to half core in the historical assays) and any analytical bias due to the possibly of different methods used in the historical sampling, the results should be used only as a general comparison.
Sulphide mineralization is as veinlet and disseminated chalcopyrite,
chalcocite and molybdenite, with quartz and pyrite. The re-assayed
intervals confirm the copper and molybdenum grades in the historical
drilling and give confidence in the data assays. Importantly, the new
results show that silver content is significant, averaging around 4 g/t
Ag in the cores sampled. Gold assayed from trace up to 0.24 g/t however
values are generally less than 0.01 g/t. All individual sample results
(total 35 samples) are available on the Focus website at www.focusventuresltd.com.
The Aurora porphyry copper-molybdenum property is located approximately
65 km north of the city of Cusco, between 2,600 – 2,900m above sea
level. Access to the property from Cusco takes between 2.5 and 3 hours,
most of the journey on asphalt and graded gravel roads.
The presence of porphyry mineralization at Aurora was confirmed by two
small drill programs undertaken by different companies in 2001 and
2005. Thirteen holes (3,900m) drilled over an area approximately 1,000m
by 800m cut intervals of copper and molybdenum mineralization
associated with a variety of quartz feldspar porphyritic intrusions
that are partly capped or concealed by slates of the Ordovician (439 -
463 ma) Sandia Formation. The system has been partially unroofed along
a narrow northeast-southwest trending ridge with slate cover rocks
preserved to the west, south and east.
Results of a recent geophysical survey support Focus’s interpretation
that the Aurora mineralizing system extends well beyond the limits of
the historical drilling and may contain a large porphyry copper
molybdenum deposit, requiring comprehensive drilling for definition of
resources. Environmental studies and permitting for a drill program
Additional information including sections and plans are available on the
Company website www.focusventuresltd.com.
Sampling Quality Analysis and Quality Control
Half core was split using a diamond core splitter and bagged,
security-sealed and transported by Focus personnel to ALS Chemex
laboratories in Lima. Silver, copper and molybdenum were determined by
multi-acid digestion and ICP-AES. Gold was assayed by Atomic Adsorption
Spectrometry. ALS Chemex’s quality control system complies with
International Standards ISO 9001:2000 and ISO 17025:2005. Analytical
accuracy and precision are monitored by the analysis of reagent blanks,
reference material and replicate samples. Quality control is further
assured by Focus’s own QA/QC program which involves the insertion by
Focus personnel of blind certified standards and blanks into the sample
stream at regular intervals in order to independently assess analytical
precision and accuracy of each batch of samples as they are received
from the laboratory.
The historical drill assays quoted in this press release were undertaken
by Vena Resources and have not been independently verified by Focus,
however the sampling and assaying are considered to have been
undertaken using standard industry practice and QA/QC procedures. Most
of the drill cores were lost in years prior to the acquisition of the
project by Focus, however half core samples from drill holes DDA-1,
DDA-3 and DDA-3A remain.
Mr. David Cass, Focus’s President, is a member of the Association of
Professional Engineers and Geoscientists of British Columbia, and a
“Qualified Person” in accordance with NI 43-101. Mr. Cass has reviewed
and approved the technical information in this release.
About Focus Ventures
Focus Ventures is developing a diversified portfolio of quality silver,
gold, copper and phosphate properties in Peru, Mexico and Colombia.
Backed by an experienced technical team of geologists and consultants,
Focus’s strategy is to identify and acquire former producing mines or
untested gold and silver and base metal properties that show potential
to become new mines. For further information, please call 604-688-5288
or visit our web site www.focusventuresltd.com.
ON BEHALF OF THE BOARD
David Cass, President
Shares Issued: 40.1-million
Neither the TSX Venture Exchange nor the Investment Industry Regulatory
Organization of Canada accepts responsibility for the adequacy or
accuracy of this release.
Some of the statements in this news release contain forward-looking
information that involves inherent risk and uncertainty affecting the
business of Focus Ventures Ltd. Actual results may differ materially
from those currently anticipated in such statement.
SOURCE Focus Ventures Ltd.