Evidence map›Paper›PMID 32616729›Full record

ArticleScientific reports2020

High nitrogen solubility in stishovite (SiO

Ko Fukuyama, Hiroyuki Kagi, Toru Inoue, Sho Kakizawa, Toru Shinmei, Shunichi Hishita, Naoto Takahata, Yuji Sano

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.9field-weighted citation impact, top 29% 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

2 citing papers in PubMed, 10 citations in OpenAlex.

  1. Article
  2. The origin and evolution of Earth's nitrogen.National science review · 2024
    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

8 authors at 4 institutions in 2 countries.

Ko FukuyamaGeochemical Research Center, Graduate School of Science, The University of Tokyo, Hongo, Tokyo, 113-0033, Japan. ko.fukuyama@eqchem.s.u-tokyo.ac.jp.
Hiroyuki KagiGeochemical Research Center, Graduate School of Science, The University of Tokyo, Hongo, Tokyo, 113-0033, Japan. kagi@eqchem.s.u-tokyo.ac.jp.
Toru InoueDepartment of Earth and Planetary Systems Science, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8526, Japan.
Sho KakizawaGeochemical Research Center, Graduate School of Science, The University of Tokyo, Hongo, Tokyo, 113-0033, Japan.
Toru ShinmeiGeodynamics Research Center, Ehime University, Matsuyama, Ehime, 790-8577, Japan.
Shunichi HishitaResearch and Services Division of Materials Data and Integrated System, National Institute for Materials Science, Tsukuba, Ibaraki, 305-0047, Japan.
Naoto TakahataAtmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Chiba, 277-8564, Japan.
Yuji SanoAtmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Chiba, 277-8564, Japan.
The University of Tokyo · JPHiroshima University · JPEhime University · JPNational Institute for Materials Science · JP

Funding

Grant-in-Aid for Challenging Exploratory Research 15K13600Grant-in-Aid for JSPS Fellows 18J21771Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area) 15H05828Grant-in-Aid for Scientific Research (S) 18H05224
6 · The paper itself

Abstract

Nitrogen is a crucial volatile element in the early Earth's evolution and the origin of life. Despite its importance, nitrogen's behavior in the Earth's interior remains poorly understood. Compared to other volatile elements, nitrogen is depleted in the Earth's atmosphere (the so-called "missing nitrogen"), calling for a hidden deep reservoir. To investigate nitrogen's behavior in the deep Earth including how the reservoir formed, high-pressure and high-temperature experiments were conducted at 28 GPa and 1,400-1,700 °C. To reproduce the conditions in the lower mantle, the redox was controlled using a Fe-FeO buffer. We observed that depending on the temperature conditions, stishovite can incorporate up to 90-404 ppm nitrogen, experimentally demonstrating that stishovite has the highest nitrogen solubility among the deep mantle minerals. Stishovite is the main mineral component of subducted nitrogen-rich sedimentary rocks and eroded continental crust that are eventually transported down to the lower mantle. Our results suggest that nitrogen could have been continuously transported into the lower mantle via subduction, ever since plate tectonics began.

Identifiers

PMID32616729
PMCPMC7331719
OpenAlexW3038994548

What OpenQuestion holds

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LicenceCC BY
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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.