Question about noise-expressions for resources

[Betep3akata]

Hi,
I am trying to create noise expression for crude-oil noise layer like tutorials do on elevation but failed.

I expected that it is possible to create noise-expressions for all layers from core/prototypes/noise-layers.lua file. And I was hoping that the noise-expression affect the possibility of spawning the resource field on certain tile. For me, it actually works for elevation, temperature, moisture and maybe aux.

My attempts are represented in the Endless Shoreline mod (https://mods.factorio.com/mod/EndlessShoreline).

Should it work for resources like crude oil or coal?
Could you please provide an example?

Thanks,
Alex