Royal Road Minerals | La Golondrina
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La Golondrina

RRM Earning 100%

 

Management believe that the Golondrina project presents an outstanding exploration opportunity

 

The project provides a strategic foothold for the Company in the highly prospective La Llanada region of southern Colombia

Highly prospective high-grade gold region

 

La Golondrina is located within the La Llanada gold mining district of Nariño Province in southern Colombia. La Llanada is an under explored region of high-grade Intrusion Related Gold deposits (IRGS) and is the source region to one of Colombia’s richest alluvial goldfields the Barbacoa district.

 

Global examples of IRGS deposits include:

  • Donlin Ck (USA) ~10Moz
  • Fort Knox (USA) ~7Moz
  • Pogo (USA) ~ 5Moz
  • Vasilkovskoe (Kazakhstan) ~9Moz
  • Korri Kollo (Bolivia)~5Moz
  • Kidston (Australia)~4.4Moz

Unexplored high-grade producing mine

 

La Golondrina is a currently small-scale underground gold mining operation comprising multiple levels of horizontal underground mine development which have accessed surface exposures of dominantly shallow-dipping high-grade quartz-veins and vein zones over a known vertical extent of 400 meters and over an aerial extent of approximately 600 by 800 meters . Mining at La Golondrina commenced during the early 1980’s and has been focused only on those quartz veins that are accessible and exposed. Much of the La Golondrina license area is concealed under recent volcanic ash, colluvium and soil. In 2011 AngloGold Ashanti conducted geological mapping, rock-chip sampling, IP-geophysics and ground magnetics over the project area. Mineralization at La Golondrina is part of an Eocene age intrusion-related gold system hosted in a Cretaceous age metasomatized (hornfels) marine sedimentary sequence.

 

There has been no drilling conducted at La Golondrina. Management of the Company believes that there is an opportunity to define a significant high-grade plus million ounce resource at the project and to rationalize, modernize and expand the current operations.

 

Ongoing saw-cut channel sampling reveals underground quartz veins average 41.5g/t gold over 0.3m with a best result of 106.5 g/t gold over 0.7m. Stockwork in hornfels adjacent to intrusive rocks has returned up to 41.8g/t gold over 1 m.

IP Anomaly

 

In 2011 AngloGold Ashanti conducted an IP geophysical survey across the region which has outlined some interesting anomalies both within the tonalite and within the hornfels sequence.

 

These anomalies represent interesting bulk tonnage style targets and have yet to be drill-tested.

Cross Section and IP Anomaly

 

Little is known about the vertical frequency or lateral continuity of gold mineralized quartz veining and vein zones at La Golondrina due to a combination of poor exposure (overlying recent volcanic ash, colluvium and soil) and sections of very steep topography. Only drilling will reveal the detail.

Styles of gold mineralization

 

There appear to be three main styles of gold mineralization at La Golondrina; Discrete veins (generally hosted in the intrusive tonalite), vein-zones in the tonalite and veinlet stockwork and stratabound zones in the adjacent hornfels. The latter is very interesting in terms of a potential bulk tonnage target. There are plenty of recent photographs on our Facebook page.

Visible gold is common

 

Gold at La Golondrina is coarse-grained with assay results to-date revealing that some 94% of gold reports to the plus 150# fraction.

New potential for mineralized hornfels

 

Underground development only recently exposed the tonalite hornfels contact at La Golondrina. Hornfels hosted mineralization is as yet of unknown thickness or extent but our recent channel samples reveal that where it is intersected by veins and vein zones it can return up to 41.8g/t gold over a 1m long channel. This is new to our local miners and presents us with an interesting bulk tonnage target and drill objective.

Three permitted CIL plants within 10km radius

 

Three combined gravity and CIL toll treatment plants are located within approximately 10km of La Golondrina. Whilst these plants are small (maximum 50tpd) they testify to the fact that La Llanada is an established and sophisticated mining region.

Exploration target style and potential?

 

  • Plus million ounce high-grade Intrusion Related Gold deposit
  • Stacked shallow-dipping high-grade veins (Pogo), moderate to steep-dipping hornfels zones (IP Target?), steep dipping feeder (vein and breccia?) zones
  • Current underground development on exposed veins only. Much of the license area concealed under volcanic ash and soil

Future Plans

 

  • Complete underground survey of existing workings
  • Complete saw-cut channel sampling of veins, vein zones and wall rocks
  • Collate all geological, geochemical and geophysical data to generate drill targets
  • Drill test 2016
  • Secure agreements over nearby mining and exploration licenses