However, some Australian scientists have developed a revolutionary new chemical process that transforms loose sediment into rock within days. The invention does not use strange, synthetic materials, but mimics natural processes. Some may find it hard to believe, but it’s true. Contrary to the general impression, it does not take millions of years to produce sedimentary rock. All it takes are the right conditions." From Tas Walker-geologist. See link below:
http://creation.com/rapid-rock