I assume you are talking fossils in the strata yes?
Chemicals must be injected into soft tissue under heaps of pressure. With the problem of scavenging and corrosion, these chemicals and rate must be very fast in order to preserve the mold. One of three chemicals must be present in the ground when this happens, sodium bicorbonate is one. Not sure. But these must be christalized and present and be injected for the fossilization to reject corrossion. So if there shells, they are long gone now.
I don't know where you got that statement but it does not relate to the fossilization process whatsoever. Please provide your source. BTW, just to let you know, if you are going the dunning/kruger route involving chemistry, you might want to know that I spent most of my working career as a research chemist, I can get quite technical on you real quick.
As for fossilization, the process involves the replacement or organic material, generally silicates, not NaHCO[sub]3[/sub], and it is not injected. It is a slow replacement process through dissolved minerals. As for shells, the are already composed of Na[sub]2[/sub]CO[sub]3[/sub] or Ca[sub]2[/sub]CO[sub]3 [/sub]or both.
The above problems with fossilization reveals another problem for evolutionists.
Paleontologist would be the proper word to use, not evolutionists, not to mention the process described above is rubbish.
Why did so many fossils fossilize? For one we don't have that much chemical in the earth.
Rubbish. Fossils are indeed rare. This is due to the environment in which they are buried in, not a lack of chemicals. In fact, the process you described is not fossilization, rather precipitation forming a calcareous coating. I think it was AiG that has an article doing this with a sponge.
#2 duckbill dinasaur graveyards show that flash flooding could never deposit the amount of fossil remains, and sediment to wash over 10000 dinasaurs in a single moment. It must have been catastrophic, a global flood.
Aren't you the one who said this thread is not about the flood? Nevertheless, 10,000 duckbill dinosaurs in one site? Source please.