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Gold Prospecting
Gold Maps & Resources
Map reference meaning
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<blockquote data-quote="user 4386" data-source="post: 512614" data-attributes="member: 4386"><p>Ordovician = hard sandstone and slate (folded)</p><p>Newer Volcanic = basalt lava flows</p><p>Older and Newer Pliocene = we still use Pliocene as an age, but they really had no idea of the age when they wrote this. The rocks are fairly flat-lying gravel, sand and clay of young age (but some may be Palaeogene and Neogene age rather than Pliocene). Of ten "Older" refers to the earliest generation of these sediments (e.g. White Hills Gravel) which can now occur on hillsides and hilltops. both can also be buried beneath younger sediments as the older gold-bearing "leads" of the miners.</p><p>Post Pliocene = really young gravel, sand and clay (e.g. Oligocene, Holocene, sediments of present-day streams)</p><p>Good luck</p></blockquote><p></p>
[QUOTE="user 4386, post: 512614, member: 4386"] Ordovician = hard sandstone and slate (folded) Newer Volcanic = basalt lava flows Older and Newer Pliocene = we still use Pliocene as an age, but they really had no idea of the age when they wrote this. The rocks are fairly flat-lying gravel, sand and clay of young age (but some may be Palaeogene and Neogene age rather than Pliocene). Of ten "Older" refers to the earliest generation of these sediments (e.g. White Hills Gravel) which can now occur on hillsides and hilltops. both can also be buried beneath younger sediments as the older gold-bearing "leads" of the miners. Post Pliocene = really young gravel, sand and clay (e.g. Oligocene, Holocene, sediments of present-day streams) Good luck [/QUOTE]
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Gold Prospecting
Gold Maps & Resources
Map reference meaning
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