resource and geological modeling overviewlance uranium project geologic modeling . utilizing gemcom...
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Resource and Geological Modeling Overview
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3D Geologic Model 3D Geologic Model
Resource ModelResource Model Hydrologic ModelHydrologic Model• Gemcom Software - proven mining industry modeling software
• Industry-standard technologies integrate with IT infrastructure
• Database of over 5000 drill holes modeled (2000 within Ross Permit Area)> 10,000 interpreted data points
• Integration of historic data and rapid acquisition and interpretation of new data
Confinement of Uranium mineralization demonstrated
Demonstrated absence of structural discontinuities
Well defined confining surfaces
Accurate structure contours
Strata Energy Integrated Modeling Strategy
robust model and reliable results• Data Accuracy
rapid updates to the model • Efficiency
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Ross Permit Area – JORC Resource August 2010
Calculation method:GT – constrained polygonal
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Resource Estimation
Additional factors, which are required for the Competent Person to be confident that there are “reasonable prospects for eventual economic extraction”, include:• permeability of the mineralized horizon;
• hydrological confinement of the mineralized horizon; and
• amenability of the uranium minerals to dissolution by alkaline solutions.
Estimating and reporting Uranium mineral resources for ISR Projects
Resource Estimates for In Situ Leach Uranium Projects and Reporting Under the JORC Code ( Australasian Joint Ore Reserves Committee)
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Area of Reference for Lance Project Area
MontanaWyoming
South DakotaNebraska
Wyo
min
g
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Tectonic Map of Black Hills Uplift
Ross Permit Area
Regional Cross-Section
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Cross-Sectional view of Regional Geology
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Geologic Type Section
SM
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Modeling Method and Procedure
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Starting reference for 3D model
Plan view 3D, Permit boundary area illustrated by green line
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Analog Method of Interpretation
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Analog Hard Copy Text / CSV File Digital
Acquisition / Digitizing of NuBeth Database
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Example of detailed baseline well installation surfaces.
2 Dimensional View of Geologic Interpretation
0 ft 10050
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Individual monitor well cluster shown with 3x vertical exaggeration.
The surfaces are defined by the digitized polylines that are visible oneach surface.
Each polyline is a geologist interpretation of the subsurface drill hole data
Individual Monitor Well Cluster Surface Interpretation
~1300ft2
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View of surfaces generated over a broad area. The gamma curve in red is very distinguishableand lies within the sandstones just above the thick basal shale and the upper confining shales.
Wide 2D View of Interpreted Area
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3D view of vertical cross section projected 100 meters deep. The ability to portray data in 3D enables the geologists to readily examine subsurface data and make informed decisions concerning project drilling and development.
Oblique 100 meter Slice of Drill Hole Data
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Lance Uranium Project Geologic Modeling
Utilizing GEMCOM software to produce a 3D subsurface Geologic model• Central database incorporates historic and current drilling data• Collaborative geologic and resource data guides development program• 3 Dimensional control of key geologic surfaces validated against known drill hole data points
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Oblique View of Project Area
Shown with 3x vertical exaggeration, this block model illustrates the key confining surfaceswithin the area
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Construction of Basal Shale Surface
E-W, N-S Sectional Interpretation
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Construction of Basal Shale Surface
Surface generation
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Construction of Basal Shale Surface
Surface Structure Contour
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