Geofluids / 2021 / Article / Tab 1

Research Article

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

Table 1

Most common and frequent structures observed both on core and from ATV data from Spitfire drill holes. Although the uranium mineralization is hosted within ductile shear zones (red cells), mineralization is inferred to be the result of post-Athabasca faulting reactivating the inherited ductile structures.

Structure typeChronologyOrientationDominant kinematicsInfill and/or associated alteration
ReverseNormalRL SSLL SSUminClay altDesilicifMafic (?)ChlQtzHemCaCO3PyDravCarbPegm

Ductile shear zones1N040 (NE-SW)XXXXX
1N015 (NNE)XXXX
1E-WXXX

Fault zones/isolated faults/fracture corridors2E-WXXXXX
3NW-SEXX
4N-S (NNW to NNE)XXXXXXXXXX
?NE-SWXXXXX
?N-S low angle dipX
?E-W low angle dipX
?NE-SW low angle dipXX

RL SS: right-lateral strike-slip; LL SS: left-lateral strike-slip; Umin: uranium mineralization; Clay alt: clay alteration; Desilicif: desilicification; Chl: chlorite; Qtz: quartz; Hem: hematite; CaCO3: calcite; Py: pyrite; Drav: dravite; carb: undetermined carbonates; Pegm: pegmatite.