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Chlorine belongs to a group of elements known as the halogens, which are important tracers to investigate questions related to planet formation processes or habitability, for example (more on that in this previous blog entry on halogens in chondrite meteorites). … Continue reading
This gallery contains 2 photos.
Carbonaceous microstructures resembling micro-organisms have been reported from numerous Archean formations (the Archean period ranges between 2.5 and 4.0 billion years ago). However, unequivocally identifying microfossils and their associated metabolism is not trivial in ancient rocks, notably because billions of … Continue reading