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Gemstones, Minerals & Fossils
Gemstones, Minerals & Fossils
Kaolinite?
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<blockquote data-quote="user 4386" data-source="post: 643243" data-attributes="member: 4386"><p>Hi Hawkear - what you say is correct for many goldfields overseas and some in eastern Australia, but it is often incorrectly extrapolated to places like Victoria and the eastern goldfields where little gold has any clear association with granite (possibly none at all). The granite at Rheola is probably unrelated to supplying the gold and is younger than it (the primary gold, not the younger alluvial gold). Not disagreeing with what you say, except that granites that do supply gold elsewhere are not strictly depleted by the process - commonly the gold is within the granite (Cadia NSW would be an example). </p><p></p><p>Rheola is a little tricky as a diorite intrusion behind the church possibly pre-dates the gold - but I doubt if it has anything to do with the gold.</p></blockquote><p></p>
[QUOTE="user 4386, post: 643243, member: 4386"] Hi Hawkear - what you say is correct for many goldfields overseas and some in eastern Australia, but it is often incorrectly extrapolated to places like Victoria and the eastern goldfields where little gold has any clear association with granite (possibly none at all). The granite at Rheola is probably unrelated to supplying the gold and is younger than it (the primary gold, not the younger alluvial gold). Not disagreeing with what you say, except that granites that do supply gold elsewhere are not strictly depleted by the process - commonly the gold is within the granite (Cadia NSW would be an example). Rheola is a little tricky as a diorite intrusion behind the church possibly pre-dates the gold - but I doubt if it has anything to do with the gold. [/QUOTE]
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Gemstones, Minerals & Fossils
Gemstones, Minerals & Fossils
Kaolinite?
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