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Gold Prospecting
Metal Detecting for Gold
Gold & Its Association With Ironstone
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<blockquote data-quote="user 4386" data-source="post: 519625" data-attributes="member: 4386"><p>Yes, many workers have diverged from Butt in more recent times. It is correct that many large nuggets are hypogene as he says - we always knew that (deposited in the primary quartz veins when the quartz veins formed etc). However many are supergene (there are good photos of gold completely enclosed inside nuggets, and they are chemically distinct in the same places). He may well be correct about the very large nuggets, I have little doubt about that (they are rarely more than a couple of hundred metres downhill of a quartz vein, and often have internal textures inconsistent with supergene origins). But most of us are satisfied with an ounce or two size....</p></blockquote><p></p>
[QUOTE="user 4386, post: 519625, member: 4386"] Yes, many workers have diverged from Butt in more recent times. It is correct that many large nuggets are hypogene as he says - we always knew that (deposited in the primary quartz veins when the quartz veins formed etc). However many are supergene (there are good photos of gold completely enclosed inside nuggets, and they are chemically distinct in the same places). He may well be correct about the very large nuggets, I have little doubt about that (they are rarely more than a couple of hundred metres downhill of a quartz vein, and often have internal textures inconsistent with supergene origins). But most of us are satisfied with an ounce or two size.... [/QUOTE]
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Gold Prospecting
Metal Detecting for Gold
Gold & Its Association With Ironstone
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