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| Minerals: |
Uranium |
| Location: | Southern Alberta, 30 km south of Fort Macleod |
| Area: | 69,000 hectares (170,000 acres) |
| Ownership: | 100% by Northern Tiger, subject to NSR |
Overview
The Alberta Sun property is underlain by Cretaceous to Tertiary marine and non-marine sandstones and tuffs. The geological target is sandstone-hosted "roll front" uranium deposits, similar to those mined in Wyoming.
Surface Exploration
Fieldwork at Alberta Sun has produced a number of positive indicators for this type of deposit, including:
- Scintillometer readings of up to 1,250 cps (counts per second).
- Visible alteration, shale beds and abundant hematite and carbonaceous material within the sandstone unit.
- Composite grab samples of isolated organic debris returned up to 7,640 ppm uranium (0.901% U3O8).
- Grab samples of sandstone from a separate area 40 kilometres southeast returned 57 to 150 ppm uranium.
- Elevated vanadium, arsenic and lead values (important indicators of sandstone-hosted uranium) occur at both areas.
Geophysical Survey
In 2007, a 2,384 kilometre airborne magnetic and electromagnetic survey was completed by Fugro Airborne Surveys. Sophisticated geophysical modeling of the data by TerraNotes Ltd. of Edmonton, Alberta was successful indentifying pre-glacial paleovalleys that are prospective hosts for sandstone-hosted uranium deposits. Signs of an oxidation-reduction front, critical for a roll front uranium deposit, were also noted.
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