You have fossils in metamorphic and igneous rocks?<quoted text>
It's the rocks that make up the continents.
The fossil record in it, is the fossils in it.
Yes, that's how mountain ranges form.
Do you have any idea just how slowly the tectonic plates move?
Rock is hard. It takes a lot to erode it. Cover it with a good layer of soil or sand and it will last forever. Only exposed rock is worn away.
That's why there are some rock billions of years old.
Rocks are not mud. Sand will protect the rocks and fossils below.
Away from the tectonic plates there will be little in the way of earthquakes to erode them.
Your mistake is to presume all rocks are being eroded at the same rate. That simply isn't the case.
The worlds oldest rocks.
The oldest dated rocks on Earth, as an aggregate of minerals that have not been subsequently melted or disaggregated by erosion, are from the Hadean Eon. Such rocks are exposed on the surface in very few places.[a]
Some of the oldest surface rock can be found in the Canadian Shield, Australia, Africa and in other more specific places around the world. The ages of these felsic rocks are generally between 2.5 and 3.8 billion years. The approximate ages have a margin of error of millions of years. In 1999, the oldest known rock on Earth was dated to 4.031 ± 0.003 billion years, and is part of the Acasta Gneiss of the Slave craton in northwestern Canada. Researchers at McGill University found a rock with a very old model age for extraction from the mantle (3.8 to 4.28 billion years ago) in the Nuvvuagittuq greenstone belt on the coast of Hudson Bay, in northern Quebec; the true age of these samples is still under debate, and they may actually be closer to 3.8 billion years old. Older than these rocks are crystals of the mineral zircon, which can survive the disaggregation of their parent rock and be found and dated in younger rock formations.
Metamorphic is formed from sedimentary and igneous and older metamorphic. Igneous is from high pressure and heat? From the mantle and older rock caught in it? None of those are pure. They are recycled chemicals. Results of accretion and forces applied. Over billions of years. Basically dust turned into rock turned into dust turned into rock turned into dust turned into rock and points in between. Any relatively pure stuff is a result of the heat and pressure, and magnetic forces below being pushed upward.
As I said, you are taking a snapshot of an end product and making it the base of your observations, and not the whole process itself. That is where your dating, stratification, geologic columns, etc come from. And the fossil record. There is a circular logic to it.
You don't have a clue as to what was recycled in that igneous and metamorphic rock. You are reciting textbook descriptions without understanding the process, and getting a wrong picture.