How does Uniformitarianism explains Evolution

Uniformitarianism states that the Earth is molded into its current shape by forces acting slowly over long periods of time, rather than short term, highly disruptive forces acting shortly. The opposite, catastrophism, is the basis assumption for God's creation to have formed teh Earth that we know over the assumed short period of time (5-10,000 years) with miracle events such as the flood.

Evolution requires immense amounts of time to explain the diversity of species, so it assumes (rather than explains) uniformitarianism.

As it turns out, the old Uniform vs Catastrophe dichotomy is not very descriptive of the world we actually find, in which there occur both. The world is old, and continental forces are slow and hugely powerful, but regional floods are always with us, of course, and larger area floods mainly associated with North American glaciation and the repeated refilling of the Mediterranean and Black Sea basins have also been proven. Nature doesn't much care for our philosophical dichotomies, it seems.

All subjects of all branches of science rely on consistency of data and its contexts -- uniformitarianism is fundamental in that sense because it tells us that things we can observe and measure today run according to the same rules that existed in the past.

In the geologic record we see numerous strata showing a sequence that contains fossils which become progressively less modern in with increasing depth, and the chronological sequence correlates with radiometric dating.