Northbelt Targets: Crestaurum

  • Summer 2015 Drill Holes
    Summer 2015 Drill Holes
  • Zone
  • South Shoot 3D Block Model
    South Shoot 3D Block Model
The Crestaurum deposit is the most advanced target on the Yellowknife City Gold project and with historic and TerraX drilling now has 273 holes intersecting the gold mineralized zone. It is located approximately 1.5 kilometers south of the Barney Zone. The shear zone has been defined by drilling for 1.4 kilometers of strike and 100-150 meters of depth. . Surface mapping has extended the strike length of the shear for 3.5 kilometers and it is open at depth. In 1946, a small exploration shaft (120 meters deep) accessed the mineralized zone, and mine planning and metallurgy were carried out in 1988.


Crestaurum is a northeast trending 10-25 meter wide shear zone within mafic volcanics and gabbros of the Kam Formation. The host to the mineralization is a zone of chlorite-sericite alteration. The best mineralized zones display intense sericitic alteration with quartz veins, and vary from 2 m to 11 m in width. Highest grades include 5.0 m @ 62.90 g/t Au (news release October 2, 2013), and occur as ‘shoots’ or ‘lodes’. Four lodes have been identified to date (South, Central, North, and North Extension). The mineralization strikes northeast and dips approximately 50 degrees to the southeast and lodes have steep to vertical plunges. Secondary zones of mineralization have been intersected in the hangingwall and footwall including 1.39 m @ 40.52 g/t Au (news release December 4, 2015), adding to the potential for further discoveries for the Crestaurum area. The mineralized zones remain open in all directions and down dip.


Initial exploration occurred in the summer of 2013 with mapping and sampling and surveying of historical drill collars. Core from 74 historical holes was re-logged and sampled in the fall of 2013. Drilling began in the winter of 2014, with additional campaigns in the summer of 2014 and during the winter and summer campaigns in 2015. TerraX has drilled a total of 86 holes totaling 18,417 meters, and Crestaurum now has 273 drill holes intersecting the mineralized zone. TerraX drilling includes high grade intersections up to 2.85 m @ 33.60 g/t Au (news release September 15, 2014).

Future Work

The positive results at Crestaurum show good continuity of high grade lodes that remain open along strike and down dip. Continued drilling on down dip and strike extensions of the main shear will increase the size of potential mineral resources on the Crestaurum structure. In addition. TerraX will continue to investigate the mineralization on the hangingwall and footwall zones in 2017.

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