Radius Gold Inc.
TSX.V: RDU     $0.10

Amalia Project

Amalia location - Sierra Madre gold belt, Mexico.
One of the best exploration environments in the world

Historic production estimated:

40Moz Au and 2Boz Ag

New discoveries in last
20 years estimated:
33Moz Au and 1Boz Ag

Major Mines and Deposits
Dolores -- Pan American Silver
Mulatos -- Alamos Gold
La India -- Agnico Eagle
Pinos Altos - Agnico Eagle
Ocampo -- Minera Frisco
Orisyvo  - Fresnillo
El Sauzal -- Goldcorp
Palmerejo -- Couer D ’Alene Mines
Almo Dorado -- Pan American Silver
San Julian -- Fresnillo
Guanacevi -- Endeavour Silver
Topis -- Great Panther
La Cienega - Fresnillo

The 10,380ha Amalia Project is located 25 km SW of the historic Guadalupe y Calvo mining district in Chihuahua and hosts high grade epithermal silver-gold mineralization. The Project is unexplored, with only minor historic artisanal-scale mining of surface outcrop known. Epithermal Au-Ag mineralization has been sampled by Radius in several veins, vein breccias and disseminated zones over 3.5km of strike length and a 600m vertical interval following the trace of a large regional fault zone.

Geological Setting

The main targets at Amalia project are located along a large regional scale NW trending fault system, which at Amalia separates the upper rhyolite volcanics from the lower andsite volcanics. Radius has defined a central corridor of mineralization, along the NW trending major structural break. In the north at Campamento, a 500m x 70m zone of intense silicification, and brecciation with massive and stockwork veining has been mapped at the contact between the upper rhyolite and lower andesite volcanic sequence.

Campamento Target

At the main target area, known as Campamento, a 500m by 70m zone of intense silicification, and brecciation with massive and stockwork veining has been mapped at the contact between the upper Rhyolite and lower Andesite volcanic sequence. The zone strikes roughly 350/70E.

101 continuous chip channel samples between 1m and 2m wide were sampled across the middle of the Campamento zone, as outcrop allowed, representing the full estimated width of the zone at 148m. The weighted average of all 101 samples was 0.20 g/t Au and 49 g/t Ag. The main mineralized interval graded:
  • 62m at 0.43 g/t Au and 98 g/t Ag
    • including: 30m at 0.58 g/t Au and 151 g/t Ag
A second 14m wide continuous chip sample (open to expansion) located 60m north of the main sample line, near a historic tunnel graded:
  • 14m at 1.47 g/t Au and 167 g/t Ag
    • including: 7m at 2.37 g/t Au and 239 g/t Ag

Guadalupe Target
Located 700m SE of Campamento, and 250m vertically below, the Guadalupe target includes a historic tunnel and shaft which expose a high-grade quartz sulphide vein breccia, hosted in andesite volcanics. Radius geologists collected 3 continuous chip samples within the historic workings where the main vein is well exposed. The results include:
Guadalupe shaft: 7m at 3.62 g/t Au and 1048 g/t Ag
including: 4m at 6.04 g/t Au and 1702 g/t Ag
Guadalupe tunnel cross-cut: 7m at 2.4 g/t Au and 188 g/t Ag
Guadalupe tunnel 10m above cross-cut: 4m at 3.92 g/t Au and 888 g/t Ag

The sampling at Guadalupe shows consistent high grade over a vertical interval of approximately 60m, from the upper shaft to lower tunnel. The area around Guadalupe is steep and bush covered with limited outcrop, hence the extent of the mineralized zone is not yet known. Radius plans a soil sampling program in the area to identify extensions of the Guadalupe zone.

Dulces Target

Located 800m NE of Campamento, at roughly similar elevation, the Dulces vein is exposed in an historic underground tunnel within an extensive area of argillic altered andesite volcanics. The vein varies from 1 to 1.5m and chip samples of the vein within the short 15m tunnel returned:
  • AM377: 1m at 34 g/t Au and 13 g/t Ag
  • AM378: 1m at 20.3 g/t Au and 44 g/t Ag
  • AM379: 1.5m at 114.5 g/t Au and 57 g/t Ag

Amalia Rock Chip Geochemistry


With Au-Ag mineralization occurring over a vertical interval of 600m at multiple targets over 3.5km strike length, Radius believes there is excellent potential for a significant discovery at Amalia. The initial program has returned encouraging high-grade results. The silica at the main Campamento target is high level with chalcedonic banded and colloform textures and typically low in sulphides. This contrasts with the Guadalupe area located 700m southeast of Campamento and vertically 250m below, where bonanza grade mineralization up to 16.4 g/t Au and 5180 g/t Ag (1m sample AGU057) is hosted in sulphide rich veins and breccias. This transition from the rhyolite hosted high level chalcedonic veins to high grade sulphide rich veins within the lower andesites is observed at several of the major deposits of the Sierra Madre gold belt. Radius is currently advancing drill permitting and plans to target high grade mineralization at depth below the Campamento silica zone and at the Guadalupe and San Pedro targets. Drill permitting documentation has been submitted to the regional authorities and exploration is on-going at other targets along the Amalia fault system.

Amalia Drill Targets