Contracting.

Earthmaps Consulting delivers the following geophysical contracting services:

All surveys are conducted on foot and their environmental impact is therefore extremely low. 
 

Ground Penetrating Radar (GPR) Surveys

Earthmaps Consulting has pioneered the use of GPR for the identification and mapping of paleo-channels in Namibia in the exploration for secondary, paleo-channel hosted uranium deposits.

Earthmaps Consulting has proved that GPR delivers unparalleled detail of the paleo-channel morphology at depths of up to 20 m where ground conductivities are low.  Such conditions are encountered in the eastern and central Namib Desert.

An in-house state of the art pulseEKKO PRO GPR system is used with the following available antennas and frequencies.
 

12.5 MHz
 25 MHz
 50 MHz
100 MHz
200 MHz
250 MHz (shielded)

Positioning is controlled by built-in Omnistar DGPS with a horizontal accuracy of +- 10 cm and vertical accuracy of +- 20 cm.                     (www.sensoft.ca)

pulseEkko Pro GPR System (click to enlarge)

Earthmaps Consulting can draw on the following range of GPR experience:
 

• Paleo-channel identification and mapping for uranium exploration
  (Namib desert)

• Diamondiferous gravels in active rivers (DRC) and alluvial deposits (Namibia)

• Detection of tourmaline bearing miarolitic cavities in pegmatites (Otjua Mine)

• Copper sulphide detection (Kombat Mine)

• Location of hidden historic pits and backfill areas (Kombat Mine)

• Ground water detection (river sediments, hard rock, karst)

• Saline-fresh ground water interface mapping (Omaruru delta)

• Utility detection and civil engineering applications (pipes, cables,
  conduits, concrete) (Hosea Kutako International Airport, Kombat Mine)
   

GPR has many additional applications in high resolution mapping of the sub-surface (see www.sensoft.ca):

• Civil engineering:  soil, sediment and bedrock structure mapping, karst cavity (sinkhole) detection, foundation studies

• Dimension Stone Quarrying:  joint and fracture plane detection

• Environmental and Mining:  groundwater contamination detection and monitoring

• Forensic: detection of buried metallic objects

pulseEkko Pro GPR System during survey (click to run Video)
	36 cubic meters per hour Ground water discovery using GPR.  Farm Burgkeller