At https://phys.org/news/2023-05-meteoritic-volcanic-particles-life-reactions.html … precursors of the molecules needed for the origin of life may have been generated by chemical reactions presented by iron rich particles from meteors – or volcanic eruption on earth. The research is published in Scientific Reports – see https://www.nature.com/articles/s41598-023-33741-8 … and the same story, basically, is at https://phys.org/news/2023-05-role-meteoritic-iron-emergence-life.html … which appears to be a new scenario for the emergence of the first building blcoks of life on earth – iron from meteors and volcanic ash.
At https://phys.org/news/2023-05-iron-rich-insights-earth-planetary-history.html … orange, yellow, silver, brown, and blue tinged bands on rocks are characteristic of banded iron formations, sedimentary rocks that may be connected with very large volcanic eruptions. The rocks contain iron oxides. They are also rocks precipitated directly from ancient sea water rich in iropn, it is thought. See https://doi.org/10.1038/s41561-023-01188-1 …