Mining Press
Golden Arrow Resources Corporation descubrió nuevas mineralizaciones de oro, plata y cobre en su proyecto Don Bosco, en La Rioja. El prospecto abarca un bloque de propiedades de 32.800 hectáreas (30 km x 10 km) en las que la minera tiene las licencias de exploración de cinco áreas diferentes. Uno de los resultados destacados de la exploración fue el hallazgo de una 2,4 m de muestras con un promedio de 2,04 gr/ton de oro, 114 ppm de plata y 10% de cobre.
El proyecto Don Bosco incluye viejos prospectos de cobre y oro viejos más los recientes descubrimientos de zonas de alta mineralización identificadas por el equipo de la minera. En estas exploraciones se recolectaron 187 muestras de roca de tres áreas distintas: El Pircarda, skarn de cobre y oro, el área de cobre Llantenes y la zona de plata Las Minitas.
Los cateos en El Pircarda arrojaron muestras de rocas recolectadas por 2,4 m con un promedio de 2,04 gr/ton de oro, 114 ppm de plata y 10.0% de cobre. En la zona Llantenes, 25% de cobre, 0.64 gr/ton de oro, 82 gr/ton de plata (grab sample) y 2 m con de 3,3% cobre (chip sample). En Las Minitas se recolectaron muestras de roca con 111 gr/ton de plata.
La propiedad de Don Bosco se encuentra en la región pre-cordillera y las elevaciones van desde 2.500 metros a 3.500 metros sobre el nivel del mar. Las exploraciones se pueden realizar durante todo el año mientras que una ruta asfaltada permite el fácil acceso a la propiedad. Golden Arrow ha establecido un campamento e inició el muestreo intensivo así como también un mapeo descriptivo de las áreas. El trabajo inicial se centrará en delimitar el grado y las dimensiones de las zonas mineralizadas y en descubrir nuevos prospectos conn el objetivo de definir los objetivos prioritarios de las perforaciones.
EL PRESS RELEASE
Golden Arrow Makes New Copper- Gold Discovery in La Rioja Province, Argentina
Golden Arrow Resources Corporation is pleased to announce that it has staked the Don Bosco property comprised of over 32,800ha (30km x 10km) of exploration licenses covering five distinct target areas in western La Rioja Province, Argentina. Highlights from prospecting include a 2.4m composite rock chip sample that averaged 2.04 gr/ton Au, 114 ppm Ag and 10.0% copper.
The Don Bosco Project includes historical copper and gold prospects and newly-discovered high-grade mineralized zones identified by the Company's reconnaissance team. Golden Arrow has completed several prospecting/sampling campaigns on Don Bosco to date. In total 187 reconnaissance rock chip samples have been collected from three distinct target areas: El Pircarda copper-gold skarn; Llantenes copper zone; and, the Las Minitas silver zone (see Maps 1 and 2).
Map 1: http://www.goldenarrowresources.com/i/maps/DonBoscoAreasAu.jpg
Map 2: http://www.goldenarrowresources.com/i/maps/DonBoscoAreasCu.jpg
Highlights for each zone include:
El Pircarda Zone
2.4m averaging 2.04 gr/ton Au, 114 ppm Ag and 10.0% copper
Llantenes Zone
25% Cu, 0.64 gr/ton Au, 82 gr/ton Ag (grab sample)
2m grading 3.3% Cu (chip sample)
Las Minitas Silver Zone
111 gr/ton Ag over 1m (chip sample)
The Don Bosco property is located in the Pre-Cordillera region and elevations range from 2,500m to 3,500m above sea level. Work can be conducted all year round and a paved highway allows easy access to the southern part of the property. Golden Arrow has established a field camp and commenced intensive sampling and mapping surveys on the property. Initial work will be focussed on delineating the grade and dimensions of mineralized zones, and on discovering new prospects, with the aim of defining priority drill targets.
Technical Details:
At El Pircarda 27 surface rock chip samples were collected from within a 2km2 area; 9 were significantly mineralized (see Table 1 for highlights). At this early stage of exploration the mineralization is interpreted to be skarn-related based on host rock setting and metal content. Current sampling is from a series of closely spaced gossanous copper-gold bearing 1-3m wide structures hosted within carbonate-rich pelitic schists. Within the district limestone beds with massive iron skarn bodies are known also to occur. The Company plans to define and sample all potentially mineralized structures within area, prospect the limestone units for mineralization and explore for a nearby intrusive heat source.
Table 1 - Composite Rock Chip Sample Highlights for El Pircarda Zone
At the Llantenes Copper target, 8km south of El Pircarda, 95 surface rock chip samples were collected during prospecting from a NE-trending 3km by 1km area underlain by folded and weakly metamorphosed shale-sandstone sequences (see Map 3).
Map 3: http://www.goldenarrowresources.com/i/maps/DonBoscoAreasCu.jpg
Of these samples 55 samples graded between 0.4% and 25.0% copper; this suite of samples averages 3.3% Cu, 0.15 gr/ton Au, 8.32 gr/ton Ag. The highest reported grades were 25% Cu, 0.64 gr/ton Au, 82 gr/ton Ag. A total of 6 composite rock chip samples targeting different styles of mineralization (shear-hosted and disseminated) were collected and results are tabulated below (see Table 2) along with a selection of point/grab sample highlights (see Table 3). The copper mineralization at Llantenes is most concentrated within shears and along vein-like structures which typically trend EW and range from 0.5m to 4m wide. Locally disseminated copper in wallrocks envelopes mineralized structures over distances of several meters, as well as being disseminated locally in the inter-bedded shale-sandstone meta-sedimentary sequences. Initial prospecting identified at least 4 significant mineralized structures. At this early stage of reconnaissance the shale-sandstone-hosted mineralization is characterized by elevated Cu-Au-Ag-Zn. A spatial association of this sediment-hosted mineralization with pillow lava sequences suggests a potential genetic similarity to the "Sediment-hosted Copper" class of deposits, an example of which is large deposits of the Zambian Copper belt. Initial work will focus on further prospecting, evaluating the dimensions and continuity of mineralized structures and assessing the disseminated copper potential of the area.
Table 2 - Composite Rock Chip Sample Results for Copper from Llantenes Zone
Regional Targets within the Don Bosco license group:
In addition to El Pircarda and Llantenes copper zones three other priority targets have been identified for follow-up work within the 32,800ha Don Bosco license group, including:
Las Minitas Silver: 51 hand surface samples were collected from an old mining camp that is located immediately south of the Llantenes copper zone and extends 1.6km in a southerly direction (Map 1). Chip samples from the old tunnels returned isolated grades up to 111 gr/ton Ag over 1m.
Map 1: http://www.goldenarrowresources.com/i/maps/DonBoscoAreasAu.jpg
La Ramada: Segemar (Argentine Geological Survey) records show the presence of a Cu-Se-Hg limestone-hosted skarn (Map1).
Map 1: http://www.goldenarrowresources.com/i/maps/DonBoscoAreasAu.jpg
Las Tunas: Strong Landsat and Aster anomalies indicating a large area of clay-iron alteration in the northern part of the property (Map 1).
Map 1: http://www.goldenarrowresources.com/i/maps/DonBoscoAreasAu.jpg
Within the Golden Arrow 32,800 hectare Don Bosco licence group, there are several small pre-existing mining licences belonging to Argentine locals (31.5 hectares in the vicinity of El Pircarda and 162 hectares at La Ramada). None of the samples reported above fall within these property boundaries as plotted on the La Rioja Cadastre.
The Company followed industry standard procedures for the work carried out on the Don Bosco Project. Blank, duplicate, and standard samples were assayed for quality assurance/quality control (QA/QC) purposes. In total, 14 quality control hand surface samples (7% of all 187 samples) were analyzed. Golden Arrow detected no significant QA/QC issues during review of the data.
Analyses of the hand surface samples were performed by Alex Stewart Assayers, in Mendoza, Argentina, an internationally recognized assay service provider. The technical information contained in this release has been prepared by Bruce Smith, AUSIMM, Golden Arrow's Exploration Manager and a Qualified Person, and has been reviewed by Dr. David A. Terry, P.Geo., Director and Vice President Exploration for Golden Arrow, and a Qualified Person as defined in National Instrument 43-101.
About Golden Arrow:
Golden Arrow is a Vancouver-based, explorer and prospect generator focused on advancing, identifying and acquiring precious and base metal projects in Argentina with the goal of achieving a world class discovery. The Company is well positioned for growth of shareholder value with a royalty income from its 1% NSR on Yamana Gold Corp.'s Gualcamayo Gold mine in San Juan, Argentina, a joint-venture with Vale on two properties, an attractive portfolio of highly prospective exploration projects and a pipeline of new opportunities under review. Golden Arrow will continue to execute its strategy to leverage the Company's exploration exposure by attracting partners to fund work on its portfolio of high quality mineral projects. Golden Arrow is a member of Grosso Group, a management company with over 18 years of experience in South America.
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