The chart to the right shows the expected upper and lower
phosphate zones within the Paris Hills project area. The
geological horizon of interest is within the Phosphoria
Formation. At the bottom of the Meade Peak, is a lower phosphate
bed ranging in thickness from 6.5 to 23 feet. The vanadium
rich bed that lies between the upper and lower phosphate
zones is approximately 11 feet thick. The upper phosphate
bed is approximately 15 feet thick. Both the upper and lower
phosphate zones contain 23% to 28% phosphate. There is 170
feet of waste shale between the lower phosphate bed and
the vanadium.
The Paleozoic rocks have been formed into an asymmetrical
syncline beneath the west-dipping Bannock thrust fault.
The phosphate and vanadium rich beds in the western limb
of the syncline outcrop and can be traced over three miles
along the surface.
The phosphate and vanadium rich beds in the east limb are
exposed along the surface about one mile before they are
covered by valley fill and are mostly displaced by range
front faults. The north plunge of the syncline has gradually
increased the depth of the phosphate and vanadium beds in
the east limb of the syncline so that they are approximately
2,500 feet below the surface at Paris Canyon and 3,300 feet
deep beneath the surface at the northern edges of prospect
area.
Drilling has confirmed the presence of the syncline and
has located several faults with 20 to150 feet of displacement
of the sedimentary beds. These faults may occur as close
as every 200 – 300 feet but generally are spaced at
about 500 feet. The spacing and displacement of the faults
can be catered for in the underground mining methods contemplated.
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