ZINCO ANNOUNCES CONTINUATION OF EXPLORATION WORK ON ITS SAN JUAN PROSPECT IN THE CUALE DISTRICT, JALISCO VMS PROJECT, MEXICO
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ZINCO MINING CORPORATION (TSXV - ZIM)
205 - 16055 Fraser Highway
Surrey, B.C. V4N 0G2
Telephone (604) 507-2181
Fax: (604) 507-2187
Webwww.Zincomining.com
TSXV: ZIM; Frankfurt: 6IZ
WKN A0MKFN
February 21, 2011
NEWS RELEASE 2011.01
ZINCO ANNOUNCES CONTINUATION OF EXPLORATION WORK ON ITS SAN JUAN PROSPECT IN THE
CUALE DISTRICT, JALISCO VMS PROJECT, MEXICO
Zinco Mining Corporation (TSX-V: ZIM, FRA: 61Z) is pleased to announce plans to
commence diamond core drilling on its San Juan prospect in the Cuale
volcanogenic massive sulfide (VMS) camp.
Commenting on the planned diamond core drilling program, Zinco´s president,
David Elgee, said: "Diamond core drilling will provide important stratigraphic
and structural information about the San Juan prospect". The 2008 reverse
circulation drilling results were very positive. The Company completed 4751.2
meters of reverse circulation drilling in 33 holes that delivered 38 mineralized
intercepts of potential economic interest. One hole, ZIM9, which intercepted
85.7 meters of 185 grams silver per tonne, is particularly encouraging."
Based on historical data available to Zinco, the ZIM9 intercept is the longest
contiguous drill hole intercept of high-grade, silver-rich mineralization in any
of the six VMS districts on its mining concessions. Zinco has reviewed the data
for 37,521.5 meters of historic diamond core drilling in 557 drill holes both on
and outside its concession area.
Other 2008 intercepts with significant silver results on the San Juan prospect
include:
· ZIM9 with 85.7 meters of 185 g/t Ag, 1.5% Zn and 0.8% Pb,
· ZIM3, collared 41 m east-northeast of ZIM9, with 108.1 meters of 58 g/t Ag,
1.4% Zn and 0.7% Pb,
· ZIM1, collared 135 m north-northeast of ZIM9, with 14.3 meters of 127 g/t Ag,
2.9% Zn and 0.9% Pb.
· ZIM5, collared 215 m north-northeast of ZIM9, with 25.5 meters of 72 g/t Ag,
0.4% Zn and 0.2% Pb.
Most of the results from the reverse circulation drilling done in 2008 are
published on the Company website at
http://www.zincomining.com/s/Mineralization.asp
These are reverse circulation drilling intercepts, and due to the inherent
uncertainties in this drilling technique (see below), the true widths may differ
from the drill intercept widths.
The reverse circulation drilling was done as a result of positive results
obtained in fieldwork carried out in 2007.
In 2007, Zinco identified one of the strongest geochemical anomalies for silver
on its entire VMS Property in the San Juan prospect area. The anomaly is 225
meters long and defined by 19 soil samples in two survey lines 100 meters
apart. The average result of these soil samples is 12.4 ppm Ag, 354 ppm Pb, 47
ppb Au, 216 ppm As, 74 ppm Sb and 732 ppm Ba. The highest silver result is
48.9 ppm Ag. Follow-up mapping using a portable Niton XRF gun in the anomaly
area shows that mineralization at San Juan occurs over a 280 meter strike length
near the contact between a flow-banded, spherulitic rhyolite flow-dome and
overlying rhyolite lapilli tuff. Eleven historic mine workings are located
along this contact. The average result of 24 chip channel and grab samples from
surface rock sampling along the mineralized zone is 139.2 g/t Ag, 0.36% Zn,
0.36% Pb and 0.1 g/t Au. The mineralization consists mainly of yellow
disseminated sphalerite with minor pyrite, galena and tetrahedrite. Only the
easternmost part of the prospect has been drill-tested, and San Juan remains
open at least 100 meters to the west.
About Zinco´s VMS Project in Jalisco, Mexico.
Cuale is one of six VMS camps that occur entirely or partially in its 52,766 Ha
concession area, centered on an erosional window of the Guerrero Terrane in
western Jalisco State.
Zinco acquired 100% of the 52,766 Ha Jalisco VMS Project by staking over a
period of years between 1998 and 2007. The Project occurs between the cities of
Puerto Vallarta and Talpa de Allende, and consists of 8 mining and 2
exploitation concessions (http://www.zincomining.com/s/LocationAndAccess.asp).
Collectively, there are 6 VMS Districts entirely or partially in Zinco´s
concessions. These include Cuale, Desmoronado, Aranjuez, Bramador, El Rubi and
La Mina.
The Company is mainly exploring its concessions for volcanogenic massive sulfide
(VMS) deposits (http://www.zincomining.com/s/DepositTypes.asp). Collectively,
there are 179 known historic mineral workings (mines, tunnels and open pits) in
the Project area. Previous work on the mineral prospects owned by Zinco
includes 22,248 meters of historic (pre-1987) drilling, 1859 line kilometres of
airborne geophysics, 10 654 soil samples, 2710 stream sediment samples and 572
rock samples. The mineralization is best described on the Company website
at http://www.zincomining.com/s/Mineralization.asp.
Geologically, the Company´s Property overlaps part of a window of the Guerrero
Terrane exposed southeast of Puerto Vallarta. The geology of the Property is
fully described and illustrated on the Company website at
http://www.zincomining.com/s/GeologicalSetting.asp.
Qualified Person
This press release was reviewed by Michelle Robinson, M.A.Sc., P.Eng., a
Director of Zinco Mining Corporation, who acts as Zinco´s qualified person as
defined by NI 43-101. Reverse circulation drill cuttings were collected at
1.02 meter intervals. At the drill site, a 1 to 2 kilogram split for assay was
prepared, numbered, and sealed in a plastic bag. A smaller split of washed
chips from each sample was placed in marked RC chip trays for geological
inspection and logging. The remaining sample material was analyzed with a
portable Niton XRF, then sealed in plastic bags and stored on site. The Niton
data were downloaded on-site every 12 hours to guide on-site drilling
decisions. The splits for assay were securely packaged and sent via Transportes
Castores to ACME Analytical Laboratories Mexico S.A. de C.V. in Guadalajara,
Jalisco, Mexico for sample preparation. At ACME´s preparation lab, the samples
were crushed and pulverized to 200 mesh, and prepared pulps were couriered to
Vancouver via DHL Express. Thirty gram splits were assayed for gold using fire
assay fusion Au by ICP-ES. Base metals, silver and other trace and major
elements were analyzed using 0.5 grams of pulp in a hot 4 acid digestion and
combined ICP-ES and ICP-MS methods. The method provides trace and major element
data for both silicate and sulfide minerals. Acme´s quality control system
complies with the requirements for the International Standard ISO 9001:2000 by
monitoring analytical accuracy and precision with the insertion and analysis of
blanks, reference standards and duplicate samples. Zinco´s quality control is
further assured by the use of blind standards and blanks inserted into the
sample stream.
The information from RC drilling is semi-quantitative for the following reasons:
· A set sample length is used, so the boundaries of the mineralization are not
known precisely.
· The cuttings are lifted to surface using air or some other drilling fluid. If
coarse gold or other heavy minerals are present, the circulation of the fluid
can cause them to settle to the bottom of the drill hole. Therefore, assays of
the cuttings can under-report values for heavy metals or minerals.
· The material recovered is in small chips, and diagnostic rock textures are
destroyed. Therefore, much of the geological and structural information that is
present in undisturbed rock cannot be documented.
Further information about the Jalisco VMS Project can be reviewed on Zinco´s
website www.zincomining.com
ON BEHALF OF THE BOARD,
David Elgee,
PRESIDENT
Certain information regarding the Company including management´s assessment of
future plans and operations, may constitute forward-looking statements under
applicable securities laws and necessarily involve risks associated with mining
exploration and development, volatility of prices, currency fluctuations,
imprecision of resource estimates, environmental and permitting risks, access to
labour and services, competition from other companies and ability to access
sufficient capital. As a consequence, actual results may differ materially from
those anticipated in the forward-looking statements.
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TERM IS DEFINED IN THE POLICIES OF THE TSX VENTURE EXCHANGE) ACCEPTS
RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY OF THIS NEWS RELEASE.
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Source: Zinco Mining Corporation via Thomson Reuters ONE
[HUG#1491953]
