Rio Cristal Zinc Intercepts 15 Meters of 29.5% Zinc
Tue Jul 22, 9:33 AM
ca.news.finance.yahoo.com
VANCOUVER, BRITISH COLUMBIA--(Marketwire - July 22, 2008) - Rio Cristal Zinc Corp. (the "Company" or "RCZ") (TSX VENTURE: RCZ.V), is pleased to announce that high-grade zinc oxide mineralization continues to be intercepted by a second set of drill holes at the Cristal project within the Company's Charlotte Bongara claim block in Peru.
Highlights Include:
- Drill hole CR-20: 15.5 meters of 29.5% zinc from 49.6 to 65.1 meters depth
- Drill hole CR-18: 21.7 meters of 22.0% zinc from 5.6 to 27.3 meters depth
- Drill hole CR-11: 10.3 meters of 21.1 % zinc from 11.2 to 21.5 meters depth
- Drill hole CR-19: 14.5 meters of 7.5% zinc including 4.5 meters of 17.8% zinc from 27.5 to 32.0 meters depth
- Drill hole CR-17: 9.7 meters of 5.0% zinc including 3.3 meters of 8.2% zinc from 6.1 to 9.4 meters depth
Charles Ushela, President and CEO of Rio Cristal Zinc, said "This second round of excellent drilling results from our Cristal project confirms the presence of a high-grade zinc oxide zone near surface. Six shallow drill holes are included in the second set of results and zinc mineralization was present in each hole. The drill holes were located approximately 25 to 30 meters from the previous drill hole locations announced by the Company on July 3, 2008. This drill hole spacing is considered optimal to determine the extent and continuity of near-surface zinc mineralization at a target area measuring approximately 600 meters by 250 meters. We anticipate that results from additional shallow and deep drill holes will be announced in the coming months. The results from the shallow drilling have exceeded our expectations and, should drill results continue to return such positive results, the Company may consider an accelerated resource estimate followed by a Scoping Study and Preliminary Economic Assessment."
The intercepts are interpreted as being part of a large Mississippi Valley type (MVT) zinc district as suggested by recent discoveries at the adjacent Florida Canyon exploration project (Votorantim Metais and Solitario Exploration & Royalty Corp.) and by the adjacent high grade zinc oxide mine operated by Cementos Pacasmayo S.A., a Peruvian company. The Company has now drilled a total of 32 holes totalling 2,805 meters as part of its current exploration program.
In addition to the higher-grade intercepts, drilling also intersected 3.8 meters averaging 2.6% zinc (drill hole CR-15, Yolanda). All intercepts are down-hole lengths and true widths have not been calculated.
A geological map identifying drill holes locations, cross-sections and table of results are available at the Map Room at www.riocristalzinc.com
QA/QC
Shallow target diamond drilling focused on zinc-oxide targets has been performed using HQ diameter core with recoveries averaging greater than 75%. Deep targets diamond drilling program is performed using HQ diameter up to 300m depth, NQ diameter up to 470m depth and BQ diameter up to 600m depth with better than 90% recovery. Core is logged and split on site under the supervision of RCZ geologists. Sampling is done over intervals defined by geological criteria with minimum sample length of 0.5m and a maximum sample length of 2.0m. Samples are bagged, codified, sealed and transported by Company geologists directly to the Company office in Lima, Peru for standards and blank samples insertion and delivered to ALS Chemex Laboratory facilities in Lima, Peru. ALS Chemex is an ISO 9001:2000-certified laboratory and is preparing for ISO 17025 certification. Zinc and lead assays utilize Agua Regia sample digestion with Inductively Coupled Plasma Emission Spectroscopy assaying method (commercial code "ME-ICP41"). Samples grading above maximal 10% Zn detection limit of ME-ICP41 method are assayed using AAS method (Atomic absorption, commercial code AA-46). The QA/QC program for each sampling batch includes geochemical standards insertion every 20th sample, blank samples insertion every 50th sample and field duplicate insertion every 30th sample. High grade samples pulps duplicates and rejects will be re-assayed by BSE Inspectorate Laboratory facilities in Lima applying the same samples preparation procedure as that used by ALS Chemex Laboratory.
As required by the National Instrument 43-101, Rio Cristal Zinc's designated Qualified Person for the supervision of exploration of the projects is Miroslav Kalinaj, Vice-President Exploration of the Company, who has verified the technical information, reported in this news release.
About Rio Cristal Zinc Corporation
Rio Cristal Zinc is a Canadian corporation focused on the discovery and further development of zinc deposits in Peru. The principal asset of RCZ is the Charlotte Bongara claim block located in northern Peru within an emerging Mississippi Valley-type zinc district. Additional information can be found on the Company's website, www.riocristalzinc.com.
This news release includes certain "forward-looking statements" under applicable Canadian securities legislation. All statements other than statements of historical fact included in this release, including, without limitation, statements regarding potential exploration results, future plans and objectives of the Company are forward-looking statements that involve various risks and uncertainties. There can be no assurance that such statements will prove to be accurate and actual results and future results, events and objectives could differ materially from those anticipated in such statements. Important factors that could cause actual results to differ materially from Rio Cristal's expectations include exploration and other risks detailed from time to time in the filings made by the Company with securities regulators.
The TSX Venture Exchange does not accept responsibility for the adequacy or accuracy of this news release.
Contacts
Ross Knutson
Rio Cristal Zinc Corporation
(778) 588-6880 or Toll Free: 1-866-609-9644
(604) 609-9946 (FAX)
Email: investor@riocristalzinc.com
Website: www.riocristalzinc.com |
