1. CEO, Dr. Flemming Efferso SkyTEM Surveys ApS
Astana Mining & Metallurgy June Airborne EM geophysics for environmental studies and mine operations
CEO, Dr. Flemming Efferso
SkyTEM Surveys ApS

2. Outline SkyTEM Surveys Setting the scene Airborne EM Example
Conclusions

3. The company 1 2 3 4 5 6 7 8

4. SkyTEM Surveys Group Spin-off from Aarhus University
Established in 2004 as a private company
SkyTEM HQ - Aarhus, Denmark

5. SkyTEM Offices 45 employees worldwide Surveys 2004 Canada 2011
UAE 2015
Africa 2015
Australia 2014

6. SkyTEM Global Experience
SkyTEM has flown over 700,000 line kms on six continents
Clients include BRGM, USGS, BHPBilliton, IOL/Exxon, Anglo American, RioTinto, Geoscience Australia, Conoco Phillips, Geoscience BC
Work for the World Bank in India
Surveys for gold, nickel, uranium, graphite, fresh, salt and contaminated water, and several geotechnical applications
Business activities:
Mineral exploration: 60%
Water and Environment: 30%
Geotechnical Engineering plus Oil & Gas: 10%

7. Recent Growth of SkyTEM
2013 – 69,000 Line kms flown
2014 – 98,000 Line kms flown
2015 – 147,000 line kms flown
Global Helicopter TEM/mag Market Share
= +40% (estimated at 400,000 line kms/year)

8. Setting the scene 1 2 3 4 5 6 7 8

9. Mining and the environment
Mining poses a potential risk to the environment
Potential contamination of groundwater and surface water
Worldwide there’s increasing focus on sustainable mining
Legislation passed in many countries to protect the environment:
Mining Management Act, Northern Territory, Australia
Water sustainability act, BC, Canada

10. Fresh water
Groundwater is estimated to contain about 30% of all fresh water on the planet
68% is trapped in a frozen state
Less than 2% available as surface water
Groundwater is the main source of water supply in many regions of the globe

11. Risk management
Pre-study of potential mining sites or areas using airborne EM (AEM)
Placing mining operations in locations with least chance of damaging valuable water resources

12. Risk management
Pre-study of potential mining sites using airborne EM (AEM)
Placing mining operations in locations with least chance of damaging valuable water resources

13. Pre-study how?
SkyTEM employed routinely for groundwater mapping for more than 1 decade
Groundwater resources can be delineated in alluvial and many hard rock areas
SkyTEM can be utilized for pre-studies of mining sites
Mineral exploration and groundwater mapping may be conducted in one operation

14. SkyTEM 1 2 3 4 5 6 7 8

15. suncor TEM receiver coils Digital video camera Generator
Transmitter coil
Magnetometer
DGPS
Inclinometers
Laser altimeter

16. Transmitted EM signal

17. Received EM signal

18. Resistivity/Conductivity values
SkyTEM produces a 3D image of the earth

19. Groundwater example 1 2 3 4 5 6 7 8

20. Groundwater Around Clarkson, NE
Water Quantity Issues
Many domestic wells had reduced or no ability to pump in 2012
Concern over municipal wells
Locating new test holes
Developing a new hydrogeologic framework
Courtesy
XRI Blue

21. Location Within Lower Elkhorn Natural Resources District
Courtesy
XRI Blue

22. 3D resistivity model of the earth
Courtesy
XRI Blue

23. Thickness of Principal Aquifer Area
Approximately million cubic meters (106,608 acre-foot) of recoverable groundwater (when saturated)
Courtesy
XRI Blue

24. Conclusions 1 2 3 4 5 6 7 8

25. SkyTEM advantages
Highly cost-efficient: up to 150 km/h / average 525 km/day
Highly vertisatile: concurrent mineral exploration and groundwater mapping in one operation
Pre-study of potential mining sites using SkyTEM can assist in preserving groundwater resources

26. Thank you for your attention