transformng windblown sand into sandstone

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Offline OokieWonderslug

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transformng windblown sand into sandstone
« on: 05/04/2013 16:09:12 »
How much sediment is required to overlay loose windblown sand to turn it into sandstone? I have been told repeatedly that the sand in the NC sandhills was covered by sediments that then eroded away leaving no trace of the overlying rock whatsoever. Every case where I have seen windblown sand covered with sediments it was sandstone. Almost always there is very little overburden covering the sandstone.

So how much does it take?


Offline JimBob

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Re: transformng windblown sand into sandstone
« Reply #1 on: 07/04/2013 22:41:24 »
the answer is erosion again. stone forms at pressure WITH a cementing agent. If the original pile wasn't too hot, carbonate is the dominant cement. If the waters were warm then silica dominates as the cementing agent
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