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Gold Prospecting
Alluvial Gold Prospecting
Action Thread about HighBanking in NSW
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<blockquote data-quote="Mungoman" data-source="post: 122038" data-attributes="member: 2730"><p>There are some soils in this country (quite a lot) which promote turbidity. These are called sodic soils, and the majority of them are clay-like in structure. They won't aggregate in water due to their anionic nature ( negative ions). A good example of how this works is putting two magnets together - they will either reject each other or attract - so those soil particles that are sodic are constantly repelling each other. This character of sodic soils is due to high sodium levels, due to shallow, salty seas that once were covering a majority of Australia in times gone past. </p><p>In other areas of our country there are soils that do not have a problem with aggregation, which is suspended soil particles attracting and clumping together, causing them to fall out, and drop to the bottom of waterways. If we could prove by the use of metallogenic or geological maps that where we are fossicking is not in a sodic soil area, and if we could reduce direct discharge from highbankers, etc. back into waterways to greatly reduce the possibility of raising the natural, but short lived turbidity of our waterways, maybe the powers that be might take note of our genuine approach to reduction of turbidity in our creeks and rivers.</p></blockquote><p></p>
[QUOTE="Mungoman, post: 122038, member: 2730"] There are some soils in this country (quite a lot) which promote turbidity. These are called sodic soils, and the majority of them are clay-like in structure. They won't aggregate in water due to their anionic nature ( negative ions). A good example of how this works is putting two magnets together - they will either reject each other or attract - so those soil particles that are sodic are constantly repelling each other. This character of sodic soils is due to high sodium levels, due to shallow, salty seas that once were covering a majority of Australia in times gone past. In other areas of our country there are soils that do not have a problem with aggregation, which is suspended soil particles attracting and clumping together, causing them to fall out, and drop to the bottom of waterways. If we could prove by the use of metallogenic or geological maps that where we are fossicking is not in a sodic soil area, and if we could reduce direct discharge from highbankers, etc. back into waterways to greatly reduce the possibility of raising the natural, but short lived turbidity of our waterways, maybe the powers that be might take note of our genuine approach to reduction of turbidity in our creeks and rivers. [/QUOTE]
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Gold Prospecting
Alluvial Gold Prospecting
Action Thread about HighBanking in NSW
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