I am working on a Sci-Fi/ Fantasy world called Atterra which is an very alternate version of earth that has been artificially injected with metals and materials from the asteroid belt. Long story short after a cataclysm (just over 2000 years in the past) that almost wiped out all life from the world, the gods of the world took resources from the belt and put them in the upper crust. This was done as the ecosystems of the planet were rebuilt in the hopes of keeping humanity out of the hollows where the last remnants of the entities that caused the cataclysm exits. These metals are now mainly concentrated in the rocky mountains and the new concentration of elements are as follows:
- Average nitrogen concentration in the soil is 3 - 5% percent instead of Earth's 1-5%
- Average iron concentration in Atterran soil is 15-55% (With 25%) being more common
- Iron ore, gold. silver, zinc, copper, aluminum- 4x as common in the crust as on earth
- Cobalt -27x earth
- Nickel- 4x earth
- Ruthenium- 405x earth
- Rhodium- 90x earth
- Palladium- 22x earth
- Iridium- 270x earth
- Platinum- 98x earth
After doing some research on the toxicity of these metals I found so far that in their base and pure forms they are not toxic unless they're made into compounds. The iron and nitrogen concentrations of the soil will make for greater plant growth on the planet compared to earth since it's higher but well within the tolerable range of plants.
The question I have specifically is how these higher concentrations of metals in the soil and rock affect the ecosystems of the world? Would it mean more trace metals in the rivers and water/ predators having more of these metals build up in their bodies like T-rex with Chromium in the Cretaceous? So far I have found no evidence of this in my researching of these metals, and I have some specific flora to help mitigate metal contamination by sucking excess metal and minerals in the soil into their trunks and bodies. But I can't help but feel like I'm missing something. So once again:
- Would the higher concentration of these metals in the crust and mountains have any real or significant impacts on plants or animals in the environment? Or would it just be the case of animals having trace amounts of these metals build up in their flesh like fish in the ocean and no real effect besides that?