ReviewOrigins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life1997
Is extraterrestrial organic matter relevant to the origin of life on Earth?
Review in Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
9 citing papers in PubMed.
- UV-Induced Nanoparticles-Formation, Properties and Their Potential Role in Origin of Life.Nanomaterials (Basel, Switzerland) · 2020Article
- Synthesis of heavy hydrocarbons at the core-mantle boundary.Scientific reports · 2015Article
- Observations of interstellar formamide: availability of a prebiotic precursor in the galactic habitable zone.Astrobiology · 2013Article
- Earth's earliest atmospheres.Cold Spring Harbor perspectives in biology · 2010Review
- Which amino acids should be used in prebiotic chemistry studies?Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life · 2008Review
- Extraterrestrial flux of potentially prebiotic C, N, and P to the early Earth.Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life · 2008Article
- Universality in intermediary metabolism.Proceedings of the National Academy of Sciences of the United States of America · 2004Review
- Prebiotic synthesis from CO atmospheres: implications for the origins of life.Proceedings of the National Academy of Sciences of the United States of America · 2002Article
- Measurement of microbial activity in soil by colorimetric observation of in situ dye reduction: an approach to detection of extraterrestrial life.BMC microbiology · 2002Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
1 author.
Funding
No grant is acknowledged in the PubMed record.
Abstract
I review the relative importance of internal and external sources of prebiotic molecules on Earth at the time of life's origin approximately 3.7 Gyr ago. The efficiency of synthesis in the Earth's atmosphere was critically dependent on its oxidation state. If the early atmosphere was non-reducing and CO2-dominated, external delivery might have been the dominant source. Interplanetary dust grains and micrometeorites currently deliver carbonaceous matter to the Earth's surface at a rate of approximately 3 x 10(5) kg/yr (equivalent to a biomass in approximately 2 Gyr), but this may have been as high as 5 x 10(7) kg/yr (a biomass in only approximately 10 Myr) during the epoch of late bombardment. Much of the incoming material is in the form of chemically inactive kerogens and amorphous carbon; but if the Earth once had a dense (approximately 10-bar) atmosphere, small comets rich in a variety of prebiotic molecules may have been sufficiently air-braked to land non-destructively. Lingering uncertainties regarding the impact history of the Earth and the density and composition of its early atmosphere limit our ability to draw firm conclusions.
Indexed as
Identifiers
9150576What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.