we have solid evidence that radiocarbon dating in particular and radiometric dating in general are accurate
So why do you keep trying to pretend this is not the case?
You ask a question you already know the answer to. Because it doesn't "jive" with creation. Of course ... if you want to believe creation ... you could always argue that ALL signs of pre-bible Earth are just props, placed by "the devil" to mis-lead us all.
LOL Yeah ... that takes the same level of "What, really?" as creation itself, so why not!!!
I am NOT arguing that rock can form in short time periods. Mineral deposits and lime build up are not "rocks." Very often, when the "source" of the build up goes away, the mineral becomes weak and breaks up or dissolves. Yes, all rocks are made of minerals, but not all minerals make "good" rock material.
That said, I agree ... those are a couple of great photos of mineral deposits.