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Gemstones, Minerals & Fossils
Gemstones and Minerals
The Mineral Sands of Western Australia's South Coast
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<blockquote data-quote="user 4386" data-source="post: 522859" data-attributes="member: 4386"><p>What they are saying is not "all the way to Antarctica" but that Antarctica was joined to Australia - so it didn't have far to go. The Heathcote (Knowsley) "Stranger" glacial erratic came riding there on a glacier.</p><p></p><p><img src="https://www.prospectingaustralia.com/forum/img/member-images/4386/1574564843_stranger_1st_yr_2000.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Antarctica-Australia separation at different times (20 Ma means 20 million years before the present)</p><p><img src="https://www.prospectingaustralia.com/forum/img/member-images/4386/1574563415_antarctic_separation.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p>Ice was present in Australia into what is northern Australia when the Knowsley erratic may have arrived - you can still see the rock outcrops around Knowsley that were polished by ice sliding over them:</p><p></p><p><img src="https://www.prospectingaustralia.com/forum/img/member-images/4386/1574564629_011006_knowsley_groove2.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="https://www.prospectingaustralia.com/forum/img/member-images/4386/1574564931_kellams_rock.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Even during the last glacial period only about 20,000 years ago, the aborigines would have suffered badly:</p><p><a href="https://www.australiangeographic.com.au/news/2013/09/ice-age-struck-indigenous-australians-hard/" target="_blank">https://www.australiangeographic.com.au/news/2013/09/ice-age-struck-indigenous-australians-hard/</a></p></blockquote><p></p>
[QUOTE="user 4386, post: 522859, member: 4386"] What they are saying is not "all the way to Antarctica" but that Antarctica was joined to Australia - so it didn't have far to go. The Heathcote (Knowsley) "Stranger" glacial erratic came riding there on a glacier. [img]https://www.prospectingaustralia.com/forum/img/member-images/4386/1574564843_stranger_1st_yr_2000.jpg[/img] Antarctica-Australia separation at different times (20 Ma means 20 million years before the present) [img]https://www.prospectingaustralia.com/forum/img/member-images/4386/1574563415_antarctic_separation.jpg[/img] Ice was present in Australia into what is northern Australia when the Knowsley erratic may have arrived - you can still see the rock outcrops around Knowsley that were polished by ice sliding over them: [img]https://www.prospectingaustralia.com/forum/img/member-images/4386/1574564629_011006_knowsley_groove2.jpg[/img] [img]https://www.prospectingaustralia.com/forum/img/member-images/4386/1574564931_kellams_rock.jpg[/img] Even during the last glacial period only about 20,000 years ago, the aborigines would have suffered badly: [url]https://www.australiangeographic.com.au/news/2013/09/ice-age-struck-indigenous-australians-hard/[/url] [/QUOTE]
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Gemstones, Minerals & Fossils
Gemstones and Minerals
The Mineral Sands of Western Australia's South Coast
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