Sentences with phrase «signatures in ancient rocks»

Molecular signatures in ancient rocks show the microorganisms may have existed on Earth around 3.5 billion years ago, producing some of the greenhouse gases needed to stabilise the early Earth's climate.

Not exact matches

To put the pieces of the puzzle together, they combined three approaches previously not used together to reconstruct the ancient magma plumbing system by looking for chemical signatures in lava rock collected from flows on the surface.

The fossils discovered in these formations include stromatolites — layered rock structures created by communities of ancient microbes — and several other signatures of microbial life, such as a microbial palisade texture preserved in stone, and bubbles that were most likely trapped in a sticky substance produced by ancient bacteria.