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EEGS Foundation Holds Ebay Auction
The Environmental and Engineering Geophysical Society Foundation is holding an eBay auction as a fundraiser. This continues the effort made through the very successful silent auction the foundation sponsored at SAGEEP in Denver this spring. Many of EXI's clients use EM-38's in archaeological and other geophysical surveys and we thought you would want to know about this unique opportunity. Search for this auction, beginning July 8, by typing "Geonics EM-38" into your eBay search bar.
Offered is an absolutely pristine analog Geonics EM-38 conductivity meter built in 1985. It has probably never been used much and still looks like it did the day it was built. For a collector of geophysical instruments, this would be a real find. For someone who is actively using shallow conductivity data for exploration, this unit is completely viable for data collection. It will measure discrete points very accurately and can be upgraded through the manufacturer to log digital data for a cost of approximately $2,500. A comparable digital unit on the used market today will cost $6,000+.
Designed for relatively shallow applications, the standard EM38 provides measurement of either the ground conductivity (quad-phase) or magnetic susceptibility (in-phase) within two effective depth ranges: 1.5 m in the vertical dipole mode; and 0.75 m in the horizontal dipole mode, as selected by the operator. Based on the same induction principle as the EM31-MK2, the EM38 can survey large areas quickly. Very lightweight and only one meter long, the EM38 provides rapid surveys with excellent lateral resolution. Measurement is generally made by placing the instrument on the ground and recording the indicated reading; however, measurements can be obtained from a standing position using an optional extender arm. This type of measurement has also seen widespread use in the delineation of alkaline spills from drilling fluids. The EM38 has proven to be useful for many near-surface applications, including archaeology, wherein use can also be made of the information available in the measurement of soil magnetic susceptibility.