Talk:Limestone Pie and Marble Pie/@comment-26951190-20151031054236/@comment-7345250-20160304214649

You still can't cement sediments that haven't been deposited and compacted, artificial sedimentary rocks notwithstanding.

Now, metamorphic rocks do not spontaneously become sedimentary. There is no "specific duration of time" involved, but weathering, erosion, deposition, compaction, and cementation do not all occur overnight. The metamorphic rock can become part of such a rock as a conglomerate or else be pulverized into fine sediments that become mixed with those of other rocks—both of which processes usually entails a journey of many miles.

My original point was that metamorphism is a process completely incomparable to the transformation of a changeling queen because the only way to undo it is to melt the rock. What we are talking about now involves carrying the rock a great distance and introducing other chemicals and sediments into the mix, so where is discussion this even supposed to go?