Sentinel Project (North Dakota, USA) - PacMag 100%

Last Updated 2 September 2008

Project Description

The target at Sentinel is multiple, near surface (less than 20 metres depth), stacked, sub-horizontal high-grade uranium-germanium-molybdenum mineralisation zones that occur at the top of the coal (lignite) horizons.

Location

The Sentinel uranium-germanium-molybdenum project covering in excess of 25,000 acres is located in North Dakota USA.

Project Status

Drilling has been recently completed to assess the continuity and extent of mineralisation between and beyond the existing historic resources with the aim of developing high-grade near surface resources that can be developed by coal-style open pit mining.  The lignite seams are flat lying to very gently dipping and are generally 0.5 to 5 metres thick with the upper 0.5 - 1.5 metre portion carrying the highest grades of uranium and molybdenum mineralisation, whilst germanium is thought to occur in multiple layers.

Recent post-hole drilling designed to test the local scale continuity and potential min-ability of the mineralisation shows excellent continuity and consistency of mineralisation over short intervals, with the weighted average grade for all 12 holes assaying 0.105% U₃O_8, with mineralisation starting at or very near to surface.

Figure 1: Church Deposit - Drill Hole Collar Locations and Area of Uranium Bearing LIgnite Defined by Down-hole Gamma Logging

Sampling by PacMag designed to asses the grade and continuity of mineralisation along the strike of two sub-cropping lignite units over 3.3km and 1.9km respectively within the Church Deposit has been very successful.  The sampling guided by surface radiometric anomalies targeted the upper portion of the lignite beds returning very stong results with individual rock samples up to 1.5% U₃O₈ and 2.99% MoO_3. 

Mining in the late 1960's from a small open pit (now rehabilitated) that occurs within the Chruch lease is reported as producing approximately 40,000 tons of ore grading 0.175% U₃O₈ from near surface.  Mining in the district ceased in the late 1960's wnen U₃O₈ was at $7 per pound.

The company believes that as the mineralisation occurs from surface and because of the gently dipping strata, the project provides an excellent exploration and development opportunity over large areas.