Canadian Mining Journal


URANIUM: NexGen makes new discovery at Rook I

SASKATCHEWAN – Vancouver-based NexGen Energy has made a new uranium discover 400 metres south of the Arrow deposit on the Rook I property in the Athabasca Basin.

Isometric view of the Arrow and South Arrow resistivity anomalies. (Credit: NexGen Energy)

The first two exploration holes of the summer program retuned off-scale radioactivity from the new zone, named South Arrow. The discovery  hole – AR-17-151c1 – intersected 7.0 metres of total composite mineralization including 0.45 metres of off-scale radioactivity marked by narrow massive pitchblende veining. A follow-up hole – AR-17-151c2 – targeted mineralization 25 metres down dip from the discovery hole. The second hole cut 7.0 metres of total composite mineralization including 0.2 metres of off-scale radioactivity.

Garrett Ainsworth, NexGen’s VP of exploration and development, said multiple geophysical datasets were integrated to choose the South Arrow target. He added, “The alteration package is similar to that which accompanies the Arrow Deposit, and includes favourable dravite-illite-sudoite clays as pervasive and replacement, pervasive strong hematite, and intense silicification that includes radiation damaged quartz.”

Read NexGen’s most recent corporate presentation at