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Discussion and Debate
Discussion and Debate
Physical & Life Sciences
Creation & Evolution
Dinosaur tracks revealed due to severe drought conditions at Dinosaur Valley State Park
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<blockquote data-quote="Ophiolite" data-source="post: 77567660" data-attributes="member: 234799"><p>Actually that one is reasonably easy. You take a selection of appropriate minerals heat them till they melt, then allow the melt to cool slowly. I would probably slowly rotate the melt container to counteract the gravity separation of forming crystals. You could produce micro-granites (crystals only a couple of millimetres across) within a week or two - in the lab. In the real world the insulating effect of the rest of a likely large magma body would take years, decades or centuries. Experiments of this sort were carried out by Norman Bowen, over a twenty five year period in the early part of the 20th century. , at the Geophysical Laboratory, <a href="https://en.wikipedia.org/wiki/Carnegie_Institution_for_Science" target="_blank"><span style="color: rgb(0, 0, 0)">Carnegie Institution for Science</span></a> of Washington. This work revolutionised igneous petrology.</p></blockquote><p></p>
[QUOTE="Ophiolite, post: 77567660, member: 234799"] Actually that one is reasonably easy. You take a selection of appropriate minerals heat them till they melt, then allow the melt to cool slowly. I would probably slowly rotate the melt container to counteract the gravity separation of forming crystals. You could produce micro-granites (crystals only a couple of millimetres across) within a week or two - in the lab. In the real world the insulating effect of the rest of a likely large magma body would take years, decades or centuries. Experiments of this sort were carried out by Norman Bowen, over a twenty five year period in the early part of the 20th century. , at the Geophysical Laboratory, [URL='https://en.wikipedia.org/wiki/Carnegie_Institution_for_Science'][COLOR=rgb(0, 0, 0)]Carnegie Institution for Science[/COLOR][/URL][COLOR=rgb(0, 0, 0)] [/COLOR]of Washington. This work revolutionised igneous petrology. [/QUOTE]
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Dinosaur tracks revealed due to severe drought conditions at Dinosaur Valley State Park
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