Almaden Minerals Ltd. ("Almaden" or "the Company") is pleased to announce the discovery of a new area of mineralisation on Almaden's 100% owned Tuligtic property, Mexico called the Tano zone. Five holes were drilled to test an area of where anomalous gold was detected in soil samples taken previously by the Company. One of the holes intersected significant mineralisation including 2.00 meters of 1.76 g/t gold. The Tano zone is one of several gold in soil anomalies on the greater than 14,000 hectare Tuligtic project that are located outside of the Ixtaca Zone.
Highlights from the holes released today include the following intercepts:
Hole TZ-12-003 TANO ZONE
7.00 meters @ 0.71 g/t gold and 2.40 g/t silver (0.8 g/t gold equivalent)
Including 2.00 meters @ 1.76 g/t gold and 5.45 g/t silver (1.9 g/t gold equivalent)
J.D. Poliquin, Chairman of Almaden, commented, "This new discovery shows that the greater than 14,000 hectare Tuligtic project has potential to host significant mineralisation well beyond the Ixtaca Zone discovery area. The results are preliminary in nature but follow-up drilling is planned on the Tano zone as well as the other areas of anomalous gold in soil on the project. On the Ixtaca Zone itself, we are excited to be working towards our maiden resource estimation, however, these new results from outside the resource area show that the resource has potential to grow significantly beyond its current edges. Since the discovery in 2010 of the Main Ixtaca Zone we have found the parallel Ixtaca North Zone, the perpendicular Northeast Extension (Chemalaco) Zone and widespread mineralisation in the volcanic units. All of these zones remain open and drilling is on-going to continue to expand the resource beyond the boundaries set for the maiden resource."
As discussed in more detail in Almaden's previous news releases of April 6th, 2011 and June 29th, 2011, surface work by the Company has identified numerous gold-silver targets on the Tuligtic project. The area of the Tuligtic project is partially covered by volcanic ash deposits which mask underlying potential vein zones and associated soil responses. In areas devoid of this covering ash, soil sampling has defined several areas of elevated gold and silver values, and trace elements typically associated with epithermal vein systems. The Ixtaca zone is the largest area of gold/silver soil response but it is also the area with the least ash cover on the project. Management believes that the additional areas of anomalous gold and silver in soil could represent zones of underlying quartz-carbonate epithermal veining similar to that of the Ixtaca zone. Elevated gold and silver in soil at the Ixtaca East zone, located over 2 kilometres along strike from the Ixtaca zone soil anomaly, may represent the extension of veining and the Ixtaca zone in that direction. In total 2,999 soil samples have been taken on the Tuligtic property and have returned gold values from below detection to 720 ppb gold (0.72 g/t), averaging 8 ppb gold and from below detection to 30.6 g/t silver averaging 0.3 g/t silver. Rock samples of clay altered volcanic and vein float in the new areas returned highly anomalous values of gold and silver consistent with these interpretations. Highlights of sampling from these areas include:
Casa Azul Zone: Located 2.3 kilometres north of the Ixtaca zone. Of the 171 soil samples defining the Azul anomaly, gold values ranged from below detection to 620 ppb Au and 30.6 g/t silver. A single grab of quartz-carbonate vein float found in the Azul zone returned 2 g/t gold and 37.8 g/t silver.
Sol Zone: Located 2.5 kilometres northeast of the Ixtaca zone. Of the 36 soils defining the Sol soil anomaly, gold values ranged from below detection to 130 ppb gold and 4.5 g/t silver.
Below is a plan map and section which will be posted to the Company's website.
To view the plan map and section accompanying this press release, please click on the following link: http://media3.marketwire.com/docs/amm1213i.pdf
About the Ixtaca Property
The 100% owned Ixtaca zone is a blind discovery made by the Company in 2010. The Main Ixtaca and Ixtaca North Zones of veining are thought to have a north-easterly trend. Holes to date suggest that the Main Ixtaca and Ixtaca North Zones are sub vertical with local variations. This interpretation suggests that true widths range from approximately 35% of intersected widths for a -70 degree hole to 94% of intersected widths for a -20 degree hole. The drilling completed to date has traced mineralisation over 1,000 meters along this northeast trend. Based upon observations at surface and of core as drilling progresses, there seems to be a variety of veinlet orientations within the Northeast Extension Zone however overall the zone is currently interpreted to be dipping shallowly to the west and striking roughly north-south.
Mr. Norm Dircks, P.Geo., a qualified person ("QP") under the meaning of NI 43-101, is the QP and project manager of Almaden's Ixtaca program and reviewed the technical information in this news release. The analyses reported were carried out at ALS Chemex Laboratories of North Vancouver using industry standard analytical techniques. For gold, samples are first analysed by fire assay and atomic absorption spectroscopy ("AAS"). Samples that return values greater than 10 g/t gold using this technique are then re-analysed by fire assay but with a gravimetric finish. Silver is first analysed by Inductively Coupled Plasma - Atomic Emission Spectroscopy ("ICP-AES"). Samples that return values greater than 100 g/t silver by ICP-AES are then re analysed by HF-HNO3-HCLO4 digestion with HCL leach and ICP-AES finish. Of these samples those that return silver values greater than 1,500 g/t are further analysed by fire assay with a gravimetric finish.
Blanks, field duplicates and certified standards were inserted into the sample stream as part of Almaden's quality assurance and control program which complies with National Instrument 43-101 requirements. Gold equivalent ("AuEq" or "Gold Eq.") and silver equivalent ("AgEq" or "Silver Eq.") values were calculated using silver to gold ratios of 50 to 1. The ratio of 50 to 1 was used for the sake of consistency with past news releases. Intervals that returned assays below detection were assigned zero values. Metallurgical recoveries and net smelter returns are assumed to be 100% for these calculations.
Source: http://www.almadenminerals.com/