| ||June 23, 2008|
Significant Zone of Silver Rich VMS Mineralization Intersected by Drilling at the San Juan Deposit on the Jalisco Polymetallic VMS Project in Mexico
| ||Zinco Mining Corporation ("Zinco") is pleased to report that it has intersected what appears to be a significant zone of silver-rich VMS mineralization during a recently completed reverse circulation drilling program at the San Juan prospect on its 100% owned Cuale polymetallic volcanogenic massive sulphide property. The San Juan prospect was historically mined on a small scale for silver, and the old workings include three adits and several open cuts.|
A total of 1590 metres in nine drill holes were drilled in the main deposit area and 476 meters in three drill holes were drilled to test soil geochemical anomalies within one kilometre of the main San Juan area. All nine holes drilled into the main deposit area intersected mineralization over an area about 450 meters long and 250 meters wide. The deposit geometry varies from a steep mineralized feeder zone about 150 meters thick on the southern margin, to a stratabound semi -massive sulphide horizon or "manto" about 12 metres thick in the northern part. The thickest mineralized intersection was 154.2 metres in drill hole ZIM9, from 39.78 metres to 193.8 metres down hole.
The San Juan mineralization occurs entirely within a thick sequence of quartz phyric rhyolite tuffs intercalated with at least one andesitic hyaloclastite layer that are intruded by quartz monzonite and quartz diorite porphyries.
Mineralization consists mainly of sphalerite with tetrahedrite, various sulphosalts, galena, pyrite and local occurrences of chalcopyrite. The feeder portion of the mineralized zone is characterized by advanced argillic alteration with pyrophyllite and quartz while the footwall to the stratabound or manto portion of the mineralized zone consists of quartz, chlorite and pyrite alteration. Sericite alteration occurs above the sulphides and laterally the alteration consists of pervasive silicification with pyrite. These alteration patterns are typical of precious metal-rich VMS deposits.
Samples were collected at one metre intervals and analyzed with a Niton hand held XRF on site. The Niton analyses indicate that silver is the most important economic element followed by zinc and lead. Based on the Niton X-ray analyses and visual and microscopic examination of the samples the mineralized intercepts were defined and those samples have been sent to the Acme Analytical Laboratory in Vancouver for quantitative analyses for silver, gold, lead, zinc and copper.
Zinco is continuing to drill test several other promising targets on its Cuale VMS property. The drill is presently testing a strong silver-gold in soil anomaly just east of the dormant Jesus Maria open pit mine located about three kilometres north of San Juan.
About the Jalisco VMS Project:
The Cuale Camp is one of six separate massive sulphide camps that occur within Zinco Mining Corporation's 100% owned Jalisco VMS project area , which is located in the Jalisco State of south western Mexico approximately 50 to 75 kilometres east of Puerto Vallarta. The other five massive sulphide mining camps in the Jalisco VMS project area are Desmoronado, Aranjuez, Bramador, La Mina and El Rubi.
Zinco's contiguous 100% owned Jalisco VMS Project mining concessions total over 52,755 hectares in area and in the Cuale camp alone it contains at least six precious metal enriched volcanogenic massive sulphide deposits, five of which were partially mined as open pits during the 1980's by a subsidiary of major Mexican mining company Penoles'. From north to south the Cuale camp massive sulphide deposits are called Jesus Maria, Patrocino, Refugio, Naricero, San Nicolas and San Juan which all occur within an area approximately 3 km by 2 km in size. Naricero was Penoles' largest mine and it produced approximately 800,000 tonnes of ore from which 266,065 grams of gold, 122,859,408 grams of silver, 22,303 tonnes of zinc and 470 tonnes of copper were recovered.
The geological setting and age of the six massive sulphide camps in the Jalisco VMS project area, including the Cuale mining camp, and their numerous precious metal enriched massive sulphide deposits are similar in many aspects to the valuable Eskay Greek gold-silver mine and the highly prospective Iskut River-Stewart area l in north western British Columbia. A similar Mexican analogy that lies south of Cuale is the Campo Morado district where TSX company Farallon Resources Ltd. is readying its G-9 deposit for production and conducting aggressive exploration drilling on several other deposits.
Michelle Robinson MASc., P.Eng. a director of Zinco, is the Qualified person as defined by NI 43-101 and responsible for the preparation of technical information in this news release.
Further detailed information about the Jalisco VMS project and the Cuale camp can be reviewed on Zinco's website www.zincomining.com
ON BEHALF OF THE BOARD,
Christopher Graf P.Eng.,
The TSX Venture Exchange has not reviewed and does not accept responsibility for the adequacy, or accuracy of this release.
You can view the Next News Releases item: Mon Jul 14, 2008, Base Metal Rich Volcanogenic Massive Sulphide Mineralization Intersected by Drilling Under the Jesus Maria Open Pit, Cuale, Jalisco, Mexico
You can view the Previous News Releases item: Tue May 27, 2008, Zinco Mining Corporation Commences Major Drilling Program on its Jalisco Polymetallic VMS Project in Mexico
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