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Gold Prospecting
Metal Detecting for Gold
Idea For Creating Test Nuggets Of Various Sizes?
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<blockquote data-quote="user 4386" data-source="post: 479401" data-attributes="member: 4386"><p>Does anyone know what property of the metal it is that determines its decay rate? The only geophysical method that I am familiar with that uses decay rate is Induced Polarisation, in which one puts a current flow into the ground and any conducting grans polarise, with a positive charge on one side and a negative charge on the other (oriented with the same polarity on all grains. When you switch off the current the polarisation collapses (seen as a voltage decay between two electrodes), and the rate of collapse depends on the amount of the conductor present. Obviously not the same technique (eg no voltage put into the ground between electrodes), but is their any similarity in the property being measured?</p></blockquote><p></p>
[QUOTE="user 4386, post: 479401, member: 4386"] Does anyone know what property of the metal it is that determines its decay rate? The only geophysical method that I am familiar with that uses decay rate is Induced Polarisation, in which one puts a current flow into the ground and any conducting grans polarise, with a positive charge on one side and a negative charge on the other (oriented with the same polarity on all grains. When you switch off the current the polarisation collapses (seen as a voltage decay between two electrodes), and the rate of collapse depends on the amount of the conductor present. Obviously not the same technique (eg no voltage put into the ground between electrodes), but is their any similarity in the property being measured? [/QUOTE]
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Gold Prospecting
Metal Detecting for Gold
Idea For Creating Test Nuggets Of Various Sizes?
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