Evidence map›Paper›PMID 19849830›Full record

ArticleGeochemical transactions2009

Reduction of nitrogen compounds in oceanic basement and its implications for HCN formation and abiotic organic synthesis.

Nils G Holm, Anna Neubeck

Open access · goldAbstract read
In one paragraph

Article in Geochemical transactions, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.9field-weighted citation impact, top 10% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 69 citations in OpenAlex.

  1. Abiotic NNature communications · 2025
    Article
  2. Planetary sources of bio-essential nutrients on a prebiotic world.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Plausible Emergence and Self Assembly of a Primitive Phospholipid from Reduced Phosphorus on the Primordial Earth.Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life · 2021
    Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Review
  14. Article
  15. Inversion concept of the origin of life.Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life · 2012
    Article
  16. Links between hydrothermal environments, pyrophosphate, na(+), and early evolution.Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life · 2011
    Article
  17. Prebiotic synthesis of protobiopolymers under alkaline ocean conditions.Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life · 2011
    Article
  18. Microbial ecology of the dark ocean above, at, and below the seafloor.Microbiology and molecular biology reviews : MMBR · 2011
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Nils G HolmDepartment of Geology and Geochemistry, Stockholm University, Stockholm, Sweden. nils.holm@geo.su.se
Anna Neubeck
Stockholm University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hydrogen cyanide is an excellent organic reagent and is central to most of the reaction pathways leading to abiotic formation of simple organic compounds containing nitrogen, such as amino acids, purines and pyrimidines. Reduced carbon and nitrogen precursor compounds for the synthesis of HCN may be formed under off-axis hydrothermal conditions in oceanic lithosphere in the presence of native Fe and Ni and are adsorbed on authigenic layer silicates and zeolites. The native metals as well as the molecular hydrogen reducing CO2 to CO/CH4 and NO3-/NO2- to NH3/NH4+ are a result of serpentinization of mafic rocks. Oceanic plates are conveyor belts of reduced carbon and nitrogen compounds from the off-axis hydrothermal environments to the subduction zones, where compaction, dehydration, desiccation and diagenetic reactions affect the organic precursors. CO/CH4 and NH3/NH4+ in fluids distilled out of layer silicates and zeolites in the subducting plate at an early stage of subduction will react upon heating and form HCN, which is then available for further organic reactions to, for instance, carbohydrates, nucleosides or even nucleotides, under alkaline conditions in hydrated mantle rocks of the overriding plate. Convergent margins in the initial phase of subduction must, therefore, be considered the most potent sites for prebiotic reactions on Earth. This means that origin of life processes are, perhaps, only possible on planets where some kind of plate tectonics occur.

Identifiers

PMID19849830
PMCPMC2770064
OpenAlexW2154686783

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.