Structural Controls of Uranium Mineralization in the Basement of the Athabasca Basin, Saskatchewan, Canada

Figure 19

Comparison of the oriented data from ATV between nonmineralized and mineralized drill hole intervals in Spitfire. (a) Oriented data from the nonmineralized drill hole HK17-70. (b) Oriented data from the mineralized drill hole HK16-47. Note the change in orientation of the shear zone indicted by the arrows. (c) Oriented data from mineralized drill hole HK16-53. Note the change of the dip from the shear zone to the footwall. (d) Sketch showing the structural interpretation as a dilational jog opening within which the mineralization is trapped. Oriented data from drill hole HK17-72 is given.