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Gold Prospecting
Metal Detecting for Gold
What Is/Was Pipeclay And How Is It Formed?
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<blockquote data-quote="UnderEmployedGeo" data-source="post: 631896" data-attributes="member: 20002"><p>If you google "sedimentary rock cycle" and look at the images, you will quickly discover that geologists are really bad at doing diagrams. This one I found, however, is almost useful:</p><p><img src="https://www.prospectingaustralia.com/forum/img/member-images/20002/1642558774_rock-cycle-sedimentary-rocks-igneous-amount-sediments.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>The main thing to note is that clay, shale and slate are all of the same "family", with slate being the metamorphosed version of shale (which is lithified clay). As the grain size of shales and slates is clay-size, the weathered product will also be clay sized - so clay begat shale which begat slate which in turn may decompose again to clay.</p></blockquote><p></p>
[QUOTE="UnderEmployedGeo, post: 631896, member: 20002"] If you google "sedimentary rock cycle" and look at the images, you will quickly discover that geologists are really bad at doing diagrams. This one I found, however, is almost useful: [img]https://www.prospectingaustralia.com/forum/img/member-images/20002/1642558774_rock-cycle-sedimentary-rocks-igneous-amount-sediments.jpg[/img] The main thing to note is that clay, shale and slate are all of the same "family", with slate being the metamorphosed version of shale (which is lithified clay). As the grain size of shales and slates is clay-size, the weathered product will also be clay sized - so clay begat shale which begat slate which in turn may decompose again to clay. [/QUOTE]
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Gold Prospecting
Metal Detecting for Gold
What Is/Was Pipeclay And How Is It Formed?
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