Athabasca Burr Project, Canada

The Burr project located 140km Saskatoon Saskatchewan Canada. Owned Athabasca Potash property spread 79,946 acres potash sweet spot called conventional corridor. potash mine developed conventional underground mine.

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Mine development schedule pre-feasibility due completion 2010. mine estimated 50 years production scheduled 2013.

Burr project reserves

The property hosts high-grade high-tonnage reserves. 29 2009 measured resources deposit 125mt graded 21.27% potassium oxide (K2O). Indicated resources total 299mt grade 23.07% K2O. Inferred resources deposit estimated 186mt grade 23.55% K2O.

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Burr project geology

The property lies within Elk Basin contains evaporitic centres - Northern Alberta situated north-west basin Central Alberta Saskatchewan sub-basin south.

The Burr project hosted within Saskatchewan sub-basin. deposit contains Prairie evaporite sequence overlies underlies stratigraphic horizons. erosional surface termed Mannville Formation Mannville Marker defines lower contact Cretaceous shales. comprises unstratified bearing sands silts mudstones shales.

"The mine estimated 50 years production scheduled 2013."

The Souris stratified salt horizon ranges thickness 15m 30m includes dolomitic limestone beds identified specifically Lower Harris Upper Davidson. Bed used define topography target levels lies immediately Prairie Evaporite horizon. structures demonstrate marginal elevation regional level.

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The Prairie Evaporite structure plunges steeply surrounding collapses.

Two classes collapses besides Devonian anomaly detected Burr region. Winnipegosis mound complexes identified Burr region categorised off-mound on-mound none mound exists respectively. pinnacle shaped mounds identified north-east corner region. areas Winnipegosis mounds demonstrate sagging overlying Prairie Evaporite. Carnallite density hosted within underlying formations.

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High-grade potash mineralisation

"The property lies within Elk Basin contains evaporitic centres."

The deposit high-grade potash mineralisation hosted within salt members Prairie Evaporite Formation - Patience Lake member Belle Plaine member Esterhazy member. Patience Lake member consists sub-members namely Upper Lower Patience Lake.

Potash-bearing salt beds formed Saskatchewan middle Devonian period.

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The Prairie Evaporite formation includes halite sylvite carnallite anhydrite dolomite clays. Halite hosted within thick beds grained crystals ranging 10cm. Sylvite crystals sizes 0.5cm 2.5cm usually anhedral partially anhedral. Sylvinite hosted cyclical sequences usually bottom sequence. Carnallite usually 0.5cm 10cm size along sylvinite halite corners salt members.

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The project hosted within carnallite zones Esterhazy Belle Plaine members. Insoluble components disseminations evaporite salts hosted within 1m-thick salt beds interbeds. Multiple clay horizons traced identified within project area.

Burr project exploration drilling

Until 2009 exploration Burr project included dimensional (2D) dimensional (3D) seismic survey programmes addition drilling 17 potash wells. 90km 2D survey completed 2006.

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In 2007 drilling potash wells extending 5,617m completed. following year 60.2km² 3D survey completed along drilling seven potash wells extending 7,541m.

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