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Metal Detectors
General Metal Detector Discussion
GPR v GPZ ?
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<blockquote data-quote="mbasko" data-source="post: 137843" data-attributes="member: 4485"><p>Its not a bad thought but there are limitations with it's use too:</p><p>1. The deeper you scan the less resolution I.e. something you can see @ 300mm may not be visible @ 1m</p><p>2. Conductivity & salinity of soil. Doesn't work well in highly conductive soils (most goldfields?) or salt ground. Clay (heavy) is also a show stopper.</p><p>3. Surface obstacles impede the process. Whilst GPR machines are mostly mounted on wheels, the antenna part likes to skid across the surface of the ground with minimal or no obstruction. The smoother the skid, the better the image. Most goldfields are inherently rocky, undulating etc.</p><p>4. Generally specific knowledge is required to interpret results.</p><p>5. High power consumption - problematic on extensive field surveys.</p><p>6. Moisture</p><p><em>Sources: <a href="http://www.groundpenetratingradar.com.au" target="_blank">www.groundpenetratingradar.com.au</a> & Wikipedia</em></p></blockquote><p></p>
[QUOTE="mbasko, post: 137843, member: 4485"] Its not a bad thought but there are limitations with it's use too: 1. The deeper you scan the less resolution I.e. something you can see @ 300mm may not be visible @ 1m 2. Conductivity & salinity of soil. Doesn't work well in highly conductive soils (most goldfields?) or salt ground. Clay (heavy) is also a show stopper. 3. Surface obstacles impede the process. Whilst GPR machines are mostly mounted on wheels, the antenna part likes to skid across the surface of the ground with minimal or no obstruction. The smoother the skid, the better the image. Most goldfields are inherently rocky, undulating etc. 4. Generally specific knowledge is required to interpret results. 5. High power consumption - problematic on extensive field surveys. 6. Moisture [i]Sources: [url=http://www.groundpenetratingradar.com.au]www.groundpenetratingradar.com.au[/url] & Wikipedia[/i] [/QUOTE]
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Metal Detectors
General Metal Detector Discussion
GPR v GPZ ?
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