Constraining the Time Interval for the Origin of Life on Earth.

  title={Constraining the Time Interval for the Origin of Life on Earth.},
  author={Ben K D Pearce and Andrew S Tupper and R. Pudritz and P. Higgs},
  volume={18 3},
  • Ben K D Pearce, Andrew S Tupper, +1 author P. Higgs
  • Published 2018
  • Geology, Physics, Medicine
  • Astrobiology
  • Estimates of the time at which life arose on Earth make use of two types of evidence. First, astrophysical and geophysical studies provide a timescale for the formation of Earth and the Moon, for large impact events on early Earth, and for the cooling of the early magma ocean. From this evidence, we can deduce a habitability boundary, which is the earliest point at which Earth became habitable. Second, biosignatures in geological samples, including microfossils, stromatolites, and chemical… CONTINUE READING
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