Cactus Mine and Cactus Corridor Targets

Cactus Cu-Au-Ag Breccia Pipe

The Cactus project comprises of at least three intrusive, hydrothermal breccia pipes including the historic Cactus copper-gold-silver mine.

Mineralization is hosted within a series of outcropping quartz-tourmaline-chalcopyrite-pyrite breccia pipes. The Cactus, Comet and New Year pipes, as well as two others not previously mined (Colburn and Purity,) are aligned along a west-northwest trending structural corridor 1,000m long by up to 400m wide.  The breccia pipes appear to have preferentially developed in areas where the structural corridor is cut by northeast-trending cross faults.

The Cactus prospect features:

  • Significant historical production from the central Cactus breccia pipe, which was mined across an area 200m long by up to 55m wide to 275m depth.
  • Wide zones of copper mineralisation remaining within the mined area defined in subsequent drilling;
  • historical drilling and channel sampling, which has outlined significant mineralization remaining within mine boundaries; and
  • iIndications of a widening mineralisation at depth from historic mining data (level maps) and drilling.

Historical mining at the Cactus mine occurred until 1915 and stopped when mining activities reached the mining claim boundary. Alderan now holds the mineral rights to all adjoining titles.

Table 1 Highlights of historical channel sampling by Rosario Exploration Company (1968-9)
ID Easting Northing Altitude (m) Azimuth Interval (m) Cu (%)
CACUG_LVL0100_001 299739 4262638 1915 124 32.5 3.9
CACUG_LVL0150_001 299770 4262617 1900 54 40.5 1.8
CACUG_LVL0150_002 299771 4262615 1900 54 40.5 1.8
CACUG_LVL0150_011 299816 4262594 1900 55 24.6 2.8
CACUG_LVL0150_022 299855 4262597 1900 44 31.3 2.4
CACUG_LVL0150_023 299877 4262619 1900 149 32.2 2.4
CACUG_LVL0200_001 299731 4262654 1885 130 83 1.2
CACUG_LVL0300_001 299870 4262604 1854 140 28 2.8
CACUG_LVL0300_002 299908 4262577 1854 104 21.5 6.1
CACUG_LVL0500_004 299964 4262620 1793 240 21 3.8
CACUG_LVL0500_007 299971 4262617 1793 240 34.1 2.7
CACUG_LVL0500_022 299984 4262578 1793 240 17.9 3.7
CACUG_LVL0500_024 299987 4262573 1793 240 31.7 2.5
CACUG_LVL0600_023 299940 4262593 1763 116 33 2.8



Plan and long section of the Cactus pit area

Alderan commenced drilling at Cactus in 2017 with the objective of testing at depth and along strike for extensions of mineralization. Drilling results from this ongoing program can be found at the following link


Bandit and Wasp Prospects

Alderan identified the Bandit prospect, a strong, flat-lying chargeability anomaly measuring 800m by 400m with a central zone of lower resistivity which lies within a circular magnetic high. It is about 50m deep and may represent a large body of sulphides possibly within or related to a porphyry copper system.

Alderan identified the Wasp prospect below and adjacent to the Cactus mine. It is a low resistivity anomaly measuring 600m by 400m, which exhibits a similar geophysical signature to mineralisation intersected at the Cactus Mine and may represent a continuation of the Cactus mineralisation to depth or be the primary source.


Wasp prospect shown as a large resistivity low (higher conductivity) to the right (north-east) of the Cactus Mine. The Wasp Prospect occurs within a pipe like structure extending to depth, possibly related to an intrusive body.

For Cactus images click here

For Cactus Canyon images click here