RE: News:Oro Mining drills 54.3 m of 2.24 g/t goldMay 18, 2011 10:43 ET
Oro Mining Drills 54 Metres of 2.24 g/t Gold, Including 21 Metres of 5.0 g/t Gold, at Taunus Project, Mexico
VANCOUVER, BRITISH COLUMBIA--(Marketwire - May 18, 2011) -Oro Mining Ltd.("Oro Mining" or the "Company"), (TSX VENTURE:OGR) continues togenerate positive drill results on its Taunus Project, highlights are asfollows:
- Drill hole SN14 intersected 54.3 metres of 2.24 g/t, expanding the gold mineralization 30 metres to the south of SN13 (167 metres of 2 g/t gold, previously announced on May 5, 2011).
- The recent drill results indicate a mineralized connection between the Eldorado and HS zones (see cross section).
- High grade gold mineralization (greater than 5 g/t) continues to be intersected at a relatively shallow depth below the pit floor in an area between the Eldorado and HS zones, which was not previously modeled or estimated in the Taunus resource block model. This resource will be updated following the completion of the 5,000m sonic drill program.
- The objectives of the sonic drill program are to increase the Taunus resource base by: 1) increasing the gold grade of the Eldorado and HS zones; and 2) drilling untested areas below the Eldorado zone targeting potential high-grade gold feeders, as well as offsets and extensions to the zones. Results of the sonic drilling to date are showing that both objectives are likely to be achieved in this drill campaign.
- The current sonic drill program, which has proven to be the only effective method of returning a good core recovery from the Taunus deposit, continues to identify previously unidentified mineralization which was historically untested prior to the dewatering of the pit. We have completed 1,850 metres in 14 sonic holes of the current drill program and anticipate that this stage of drilling should be complete by the end of August.
Sonic Drill Results
SN14intersected 54.3 metres of 2.24 g/t gold (from a down hole depth of38.1 to 92.4 metres), including 5.0 g/t gold over 20.9 metres, extendingthe mineralization discovered in SN13 by 30 metres to the south. Thehigh grade zone in this hole correlates with the interval in SN13 thatreturned 7 g/t gold over 29 metres. The true width of this near verticalzone is estimated to be 20 to 30 metres, can be traced over a verticaldistance of 180 metres, and is open at depth. In addition, thisintersection correlates well with the high grade intercept of 11.9 g/tgold over 41 metres in diamond hole 41, located 12 metres to the southand approximately 40 metres down dip. This intercept in hole 41 is thehighest grade drill interval discovered at Taunus to date and includes27.7 g/t gold over 16.5 metres (press release March 3, 2010).
Thecombined results of these three holes are considered to be verysignificant since they are providing good evidence for the existence of apreviously unrecognized vertical component to the gold system atTaunus. The combination of vertical controls, shallow high gold gradezones, and gold mineralization in areas previously not modeled orestimated are supportive of a potential increase in resources at theTaunus deposit.
Select gold assay composite intervals for SN14:
Note: the reported intervals are a down-hole length, and may not represent a true width.
TheTaunus gold deposit is interpreted to be a gold-rich epithermal systemlocated in a dilatational jog which has formed a local pull-apart basin.The general shape of the gold-bearing zones is analogous to a verticalfunnel or pipe-like geometry, with low angle portions of the systembranching off. Gold is hosted in unconsolidated, clay-rich, oxidebreccias with clasts that display silicification, interpreted asepithermal vein-related alteration. Overall, in the portions of thedeposit drilled to date, the silica content is low and the oxidation isdeep exceeding depths greater than 200m.
Section and plan views ofthe current interpretation of the gold mineralization can be referencedon the Company's web site: Trinidad Gold Project - Oro Mining, https://www.oromining.com/section.asp?pageid=15020,also showing the sonic drill results relative to the latest resourcemodel estimate based only on reverse circulation (RC) and diamond drillresults.
Quality Control
Oro Miningmaintains a strict quality control program. All samples generated by OroMining were submitted directly to Inspectorate, an ISO9001-2008-certified assay laboratory, for preparation in Durango,Mexico, and analysis in Reno, NV. All sonic drill samples submitted foranalysis were from splits of quarter-sawn frozen core. Analysis wasconducted on one-assay-tonne samples for gold, with a standard, blankand duplicate inserted for every 20 samples submitted. Analysis of goldwas by fire assay with AAS finish, and with gravimetric finish onsamples exceeding five g/t gold. Y. (Gary) Wong, P.Eng. is a qualifiedperson as defined by National Instrument 43-101 and has reviewed thecontent of this press release.
About Oro Mining
OroMining is a publicly-listed company on the TSX Venture Exchange withproperties located in Sinaloa and Zacatecas, Mexico. Oro Mining'scorporate mandate is to advance its projects toward production, whilecontinuing to make exploration discoveries on its extensive propertyposition. The district-scale Trinidad property that hosts the Taunusgold deposit continues to be the focus of Oro Mining's exploration andproject development activities. The Company's mission is to createexceptional value for our shareholders through exploration discovery,resource growth, mine development and production, while providingsustainable benefits to our staff, the environment, and the communitieswhere we operate.
ON BEHALF OF THE BOARD OF DIRECTORS
John Brownlie, Chief Executive Officer