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Gold Prospecting
Alluvial Gold Prospecting
Where are the alluvial gold bonanzas of the past?
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<blockquote data-quote="user 4386" data-source="post: 644658" data-attributes="member: 4386"><p>This cross-section shows two types of palaeoplacer and a modern river. One palaeoplacer is now deeply buried and covered by younger rocks including a baslt flow that has covered the paleoplacer valley. The only good alluvial gold you might get here would be on the shaft dump using a metal detector - definitely none of its gold would have got into the modern river. Another paleoplacer (probably even older) has been uplifted and its gravels are on a hilltop (called White Hills Gravel), You might get some good goldi n little gullies draining off it, or by detecting the hilltop gravels, but are unlikely to find that much of its gold has got into the modern river. that is far to the left.</p><p></p><p></p><p>[ATTACH=full]1774[/ATTACH]</p><p></p><p>Here is a publication that describes the basics for non-geologists. It is on pages 134-158 of the book cover shown.</p><p></p><p>[ATTACH=full]1775[/ATTACH]</p><p></p><p>[ATTACH=full]1776[/ATTACH]</p><p></p><p>I have posted this reference before - it describes some of these things in more detail for the Victorian situation - written for geologists but mostly understandable for non-geologists.</p><p></p><p>[ATTACH=full]1773[/ATTACH]</p></blockquote><p></p>
[QUOTE="user 4386, post: 644658, member: 4386"] This cross-section shows two types of palaeoplacer and a modern river. One palaeoplacer is now deeply buried and covered by younger rocks including a baslt flow that has covered the paleoplacer valley. The only good alluvial gold you might get here would be on the shaft dump using a metal detector - definitely none of its gold would have got into the modern river. Another paleoplacer (probably even older) has been uplifted and its gravels are on a hilltop (called White Hills Gravel), You might get some good goldi n little gullies draining off it, or by detecting the hilltop gravels, but are unlikely to find that much of its gold has got into the modern river. that is far to the left. [ATTACH type="full"]1774[/ATTACH] Here is a publication that describes the basics for non-geologists. It is on pages 134-158 of the book cover shown. [ATTACH type="full"]1775[/ATTACH] [ATTACH type="full"]1776[/ATTACH] I have posted this reference before - it describes some of these things in more detail for the Victorian situation - written for geologists but mostly understandable for non-geologists. [ATTACH type="full"]1773[/ATTACH] [/QUOTE]
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Gold Prospecting
Alluvial Gold Prospecting
Where are the alluvial gold bonanzas of the past?
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