From 1962 to 2006, significant exploration work was carried out on a small part of the property that included geological mapping, chip and trench sampling, soils geochemistry, shallow percussion drilling, geophysics and follow-up reverse circulation and diamond drilling.
In 1962-1964, Minera Metalmine (Metalmine) completed 56 percussion drill holes totaling 1,680m to an average depth of 30m on the Aurum property and confirmed the presence of a shallow copper oxide deposit over an area of approximately 170,000m2.
In 1992-1993, a small geochemical soils sampling program was carried out adjacent to the deposit by Blue Ridge Resources.
In 2002, International PBX Ventures Ltd (IPBX) completed geological mapping, soils geochemistry (785 samples), surface trenching and a 30 line km Induced Polarization (IP) geophysical survey. The IP survey delineated an open-ended northeast elongate anomaly some 150-400m wide and 2.2 km long flanking and extending a further 700m northeast and 800m southwest of the Metalmine drilling.
From 2003 to 2006, IPBX executed two drill programs (primarily diamond drilling) totaling 92 holes (8,340m) to investigate the source of the IP anomaly and to provide the basis for a preliminary resource estimate of the copper oxide zone. Holes drilled to test the IP anomaly intersected significant widths of copper sulphides including 25m @ 1.61% Cu and 144m @ 0.43% Cu and confirmed the source of the anomaly.
In 1964, Metalmine estimated a resource of 18 Mt @ 1% soluble copper to a vertical depth of 30m, covering some 750m of the 2,200m of strike of the main copper bearing skarn zone, which is one of three such zones on the property. In 1993 Blue Ridge Resources estimated, within the same area and to a depth of 25m, a similar resource.
In 2006, International PBX Ventures Ltd. contracted SRK Consulting to estimate a copper resource based on 74 out of the 92 holes (6,637m) drilled and reported a current indicated mineral resource of 1.827 Mt @ 0.59% Cu oxides with a secondary enriched zone 1.743 Mt @ 0.70% Cu, and inferred resources of 0.836 Mt @ 0.59% Cu oxides with a secondary enriched zone of 1.193 Mt @ 0.49% Cu as stated in the unpublished January 25, 2007 technical report.
The data used to estimate the above historical resources no longer exists either whole or in part. Hence at this time such estimates cannot be verified by a qualified person as current NI 43-101 compliant mineral resources and the Company is not treating them as such. Re-logging, check assaying of the mineralized intervals and rock density studies on the IPBX drill core, which is still stored on site, will need to be undertaken by a qualified person, as a minimum to verify and validate the 2007 historical resource.
Location and Access to Infrastructure
The Aurum property is located approximately 85 km east-southeast of Vallenar and is reached from Vallenar by paved (27 km) and gravel roads constructed and maintained by Teck to service its El Relincho Project. Industrial use water is available in the Corral de Pirca creek within the property limits and water rights to several claims in the creek valley are included with the mining title. The site is located 12 km from Alto del Carmen and the main Chilean northern electrical grid. The favorable climate provides year-round working conditions and there is cell phone coverage in the area for communications.
QRS Due Diligence Work
Most Popular Stories
- NSA Defends Global Cellphone Tracking Legality
- Ad Counts Rise in 2013 for Hispanic Magazines
- Top Websites for U.S. Hispanics
- Networks Vie for U.S. Hispanic TV Viewers
- Saab Gets Back into the Game; U.S. Auto Sales Soar
- Apple Activates Customer-Tracking iBeacon
- Dell Offers Undisclosed Number of Employee Buyouts
- 2013 Tech Gift Guide: iPad Mini Still Hot; Chromecast a Great Low-Cost Option
- Authorities Close to Deal with JPMorgan Chase over Madoff Response
- A Biography of Jonathan Ive, Apple's Creative Chief