Cited by 140Origins and Evolution of LifePaleontology and Stratigraphy of FossilsEarth Systems and Cosmic Evolution

Constraining the Time Interval for the Origin of Life on Earth

Open access
Pearce, Ben K.D., Tupper, Andrew S., Pudritz, Ralph E., Higgs, Paul G.·2018·Astrobiology

Abstract

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 isotope ratios, provide evidence for when life was actually present. From these observations we can deduce a biosignature boundary, which is the earliest point at which there is clear evidence that life existed. Studies with molecular phylogenetics and records of the changing level of oxygen in the atmosphere give additional information that helps to determine the biosignature boundary. Here, we review the data from a wide range of disciplines to summarize current information on the timings of these two boundaries. The habitability boundary could be as early as 4.5 Ga, the earliest possible estimate of the time at which Earth had a stable crust and hydrosphere, or as late as 3.9 Ga, the end of the period of heavy meteorite bombardment. The lack of consensus on whether there was a late heavy meteorite bombardment that was significant enough to prevent life is the largest uncertainty in estimating the time of the habitability boundary. The biosignature boundary is more closely constrained. Evidence from carbon isotope ratios and stromatolite fossils both point to a time close to 3.7 Ga. Life must have emerged in the interval between these two boundaries. The time taken for life to appear could, therefore, be within 200 Myr or as long as 800 Myr. Key Words: Origin of life-Astrobiology-Habitability-Biosignatures-Geochemistry-Early Earth. Astrobiology 18, 343-364.

Integrity signals

Registry

Crossref · 10.1089/ast.2017.1674

Cites

157 of 157 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • An arbitrarily low abiogenesis rate cannot be robustly excluded because the chance probability tab/t⊕ ~ 0.1 is not negligible assuming a constant abiogenesis rate.

    “but an arbitrarily low rate cannot be robustly excluded25–27 because the chance probability tab∕t⊕ ~ 0.1 is not negligible assuming a constant abiogenesis rate, where tab is the time of abiogenesis elapsed from the birth of Earth28, and t⊕ the present age of Earth.”

    From Emergence of life in an inflationary universe (2020) · cites this paper as [28]

  • A 3.5-billion-year-old hot spring setting on a volcanic plateau that formed in the absence of direct plate tectonic involvement is a good analog for an early Earth volcanic landscape emerging from a global ocean.

    “The recent discovery of a 3.5-billion-year-old hot spring setting on a volcanic plateau that formed in the absence of direct plate tectonic involvement is a good analog for an early Earth volcanic landscape emerging from a global ocean just 500 million years after the approximate time frame we are proposing for life's origins (Pearce et al., 2018; Van Kranendonk et al., 2020).”

    From The Hot Spring Hypothesis for an Origin of Life (2020) · cites this paper as Pearce et al., 2018

Cites

1 retracted

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Pearce, B. K. D., Tupper, A. S., Pudritz, R. E., & Higgs, P. G.
Affiliations
McMaster University (CA)
Venue
Astrobiology
Published
2018-03-01
Volume
18
Issue
3
Pages
343-364
ISSN
  • 1531-1074 (ISSN-L)
  • 1557-8070
OpenAlex
W2950877648
Cited by
140
References
157
Citations by year
2026: 12 · 2025: 20 · 2024: 21 · 2023: 19 · 2022: 18 · 2021: 13 · 2020: 20 · 2019: 10 · 2018: 7
FWCI
6.71
Type
journal article
Language
en
Open access
Locations
  • Astrobiology (publishedVersion)
  • PubMed (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Origins and Evolution of Life
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Stratigraphy of Fossils
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Earth Systems and Cosmic Evolution
Keywords
origin of life, early Earth, biosignatures, Late Heavy Bombardment, carbon isotope ratio, stromatolites, microfossils, atmospheric oxygenation, molecular phylogeny, Moon formation, Earth formation
MeSH terms
Origin of Life, Carbon Isotopes, Fossils, Phylogeny, Time Factors, Water, Earth, Planet, Exobiology, Evolution, Molecular

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review