Zena Mining Corp.: 2010 Exploration Program Completed at Lapin Barite Property
23 February 2011 - 12:40PM
Marketwired
Zena Mining Corp. ("Zena" or the "Company") (TSX VENTURE: ZCC) is
pleased to announce that it has completed its 2010 exploration
program on its Lapin Barite property situated near Rock Creek, B.C.
The Company owns 100% of the rights to the Industrial Minerals
subject to a 10% net profits interest and royalty and other
payments based on production to the original underlying vendors.
Barite, the primary industrial mineral on this property, is a major
component and the weighting agent used in drilling mud for the oil
and gas industry's exploration and developmental drilling programs.
Zena explored the "B" zone deposit in July 2010 by excavator
stripping, mapping, and diamond sawing representative samples.
Stripping exposed an area roughly 40 by 20 meters which contains at
least five zones of Barite, of which the most important is the Main
zone, exposed over a strike length of 20 meters and up to 10 meters
wide. This zone is open to the north. Within the Main zone, seven
samples ranged from 75% to 92% Barite (BaSO4). Specific gravity
varied from 3.68 to 4.52, averaging 4.15. Analyses were done by ALS
Chemex Laboratory in North Vancouver, a certified laboratory. A
minimum specific gravity of 4.10 is required for Barite used as a
weighting medium for drilling mud.
The samples were analyzed for Barite, for specific gravity and
for 30+ elements using normal Induction Coupled Plasma (ICP)
techniques. ICP analysis is a standard labororatory method widely
used for determination of trace and major elements. Silica (SiO2)
is the chief contaminant, averaging about 16% along with small
amounts of calcium carbonate and phosphate which do not appreciably
affect the specific gravity. There are only small amounts of base
metals, copper, lead and zinc, and these are not significant in
terms of commercial Barite.
During the mapping program a number of new Barite lenses were
found north of the stripped area. The stripping was done on a
Barite zone known as the "B" or hilltop zone. Total cost of the
2010 program was approximately $60,000.
The property has at present three known zones with Barite
mineralization, known as A, B and C zones. Past exploration
including trenching and drilling at the "A" zone has established a
Barite deposit with grades above or near the specific gravity
threshold of 4.10. A NI 43-101 measured resource of 5,800 tonnes
with specific gravity of 4.25 and an inferred resource of 10,000
tonnes averaging specific gravity of 3.93 was estimated for the "A"
zone by Godfrey Walton P.Geo. (2003).
According to a technical Report completed by B.J. Price
Geological Consultants Inc. in January 2011, there is a reasonable
chance that further exploration may develop an economic tonnage and
grade of Barite; this possibility cannot be quantified and can only
be verified by further work.
The Company's 2011 planned exploration program, with a cost
budget to be approximately the same as the 2010 program, includes
the stripping of the northern limits of the Barite lenses in the
"B" zone, with the possibility of producing a test sample. The
Company may also include in the exploration program further review
of the "A" zone.
This press release has been reviewed by Barry J. Price, M.Sc.,
P,Geo., an independent consultant based in Vancouver BC. Mr. Price
supervised the stripping and sampling program and has completed the
Technical Report.
ON BEHALF OF THE BOARD
Kevin Hanson, Director
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 release.
Contacts: Zena Mining Corp. Kevin Hanson 604-688-5421
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