Resumen: Luna Gold Corp. anunció la identificación del objetivo Onix, localizado en el proyecto Luna Greenfields, del cual es dueña del 100%. Onix contiene tres estructuras de oro dentro de un área de 2km2 al suroeste de la mina Aurizona. Los datos geoquímicos y geofísicos combinados con mapeos geológicos indican que el nuevo objetivo tiene un gran potencial de albergar altos grados de mineralización de oro.
El Presidente y CEO de Luna Gold, John Blake, comentó que Onix demuestra un gran potencial para albergar mineralizaciones de alto grado y es el tercer objetivo definido a la fecha. La compañía empezaría un programa de excavación en la zona en el 3T2012.
LUNA GOLD IDENTIFIES ONIX GOLD TARGET AT LUNA GREENFIELDS
Vancouver, May 24, 2012 – Luna Gold Corp. (TSXV-LGC) (LMA-LGC) (OTCQX-LGCUF) (“Luna Gold” or the “Company”) announces the identification of the Onix target located within the Company’s 100% owned Luna Greenfields project. Onix contains three gold targets spread over a 2 km2 area associated with a southwest trending shear zone 26 km due SW from the Aurizona Mine (Figure 1). Geochemical and geophysical data combined with geological mapping indicate that this new target holds potential to host high-grade gold mineralization. Project maps can be viewed on the Luna Gold website at www.lunagold.com or click below. Highlights are:
New mineralized Onix Shear Zone (OXSZ) located 6 km WSW from the Areal gold target with several newly mapped artisanal workings located between these targets
Onix North gold in soil anomaly measuring 0.70 km x 0.15 km at a 50 ppb Au cut-off with maximum value of 1.45 g/t Au within which lie 6 artisanal workings along a strike of 0.3 km with numerous vertical shafts and collapsed galleries
Onix North - reconaissance rock and tailings grab sampling program (26 samples) returned gold values up to 9.12 g/t Au
Onix South - gold in soil anomaly measuring 0.25 km x 0.10 km at a 50 ppb Au cut-off with maximum value of 37.10 g/t Au within which lie 2 artisanal pits with several vertical shafts nearby
Onix South - reconaissance rock and tailings grab sampling program (15 samples) returned gold values up to 2.63 g/t Au
Discovery of sub-cropping high-grade gold mineralization in a new area between Onix North and Onix South with the 3 highest grade samples returning values of 41.00 g/t Au, 27.40 g/t Au and 4.49 g/t Au (5 samples in total)
Luna Gold’s President and CEO, John Blake, comments, “Luna Gold is pleased to confirm another gold target in the Luna Greenfields project. Onix demonstrates potential to host a high grade mineralized deposit and is the third target defined to date. The Company is planning to risk-rate and prioritize targets to commence a diamond drilling program at Luna Greenfields in Q3 2012.”
Figure 1. Location of the Onix target, Luna Greenfields project overlain on 1VD magnetic grid (CPRM, 2008).
Figure 2. Location of the Onix target within the OXSZ. Overlain on total field magnetic grid.
Onix
The Onix target was an active garimpo (artisanal mine) in the 1980’s where quartz veins hosted by tonalites and weathered basic volcanics were mined along diverse elongate structures. Outcrop is scarce and limited to garimpo pits. Onix is located 6 km due WSW from the Areal target and several artisanal workings occur between both these targets and are currently being followed-up. Gold is hosted in pyrite-bearing quartz veins with occasional tourmaline. Onix North is a narrow structure with pits extending along a 0.3 km strike length. The presence of vertical shafts and collapsed galleries coupled with elevated gold grades in quartz veins and tailings suggests potential for high-grade mineralized zones along the structure. Rock grab sampling from around the pits and pit walls returned several high-grade samples including 9.12 g/t Au, 5.06 g/t Au and 3.46 g/t Au. Grab sampling of tailings dumps also returned encouraging grades including best values of 4.24 g/t Au, 2.31 g/t Au and 2.16 g/t Au.
Onix South is located 0.5 km SE from Onix North and consists of two NE-trending pits and several vertical shafts. Rock grab sampling around the pits returned best values of 1.37 g/t Au and 0.51 g/t Au. Grab sampling of tailings dumps returned best values of 2.63 g/t Au, 1.80 g/t Au and 1.52 g/t Au. Onix North and Onix South are separated by a strong magnetic low anomaly representing the OXSZ.
Luna’s field teams have also discovered a new sub-cropping mineralized structure located between the main Onix workings described above. Samples of quartz, some of which contain visible gold, assayed 41.00 g/t Au, 27.40 g/t Au and 4.49 g/t Au. Forty-two out of forty-six rock and tailings grab samples collected across the entire Onix target assayed greater than 0.10 g/t Au. Table 1 contains a summary of Luna’s reconnaissance rock and tailings sampling program at Onix.
Luna Gold’s VP Exploration, Titus Haggan, states, “The Onix pits were identified through a reconnaissance program in 2011. Luna field teams subsequently opened north-south soil lines spaced 100 meters apart and collected samples at 25 metre stations along the lines as shown in the accompanying maps. A ground magnetic survey was also conducted to determine the structural controls at this target. Limited rock and tailings samples were also collected to determine grade of potential mineralized samples and tailings dumps left from historic artisanal mining activity. Onix is the latest target to be added to the Luna Greenfields portfolio. Field teams are now focused on exploring the artisanal workings located within the 6 km trend between the Areal and Onix targets to understand the relationship between these occurrences in addition to advancing gold targets in prospective new areas.”
Table 1. Gold grades of initial surface sampling of rock and tailings material, Onix target. Mineralized samples above a 0.10 g/t Au cut-off grade are reported. A total of 46 samples were collected over the entire Onix target. Assay values for samples not reported here range between below detection limit (<0.05 g/t Au) to 0.09 g/t Au. These samples were neither part of, nor alone do they constitute, a statistically representative sampling program.
Fuente: http://www.lunagold.com/en/
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