Evidence map›Paper›PMID 39685303›Full record

ReviewMaterials (Basel, Switzerland)2024

The Formation Mechanisms of np-Fe in Lunar Regolith: A Review.

Mingchao Xiong, Yanxue Wu, Wenqing Yao, Zilei Chen, Yingying Yu, Xia Li, Pan Yan, Xiongyao Li, Xiaojia Zeng

Abstract readReview
In one paragraph

Review in Materials (Basel, Switzerland), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
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

3 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
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

9 authors.

Mingchao XiongSchool of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China.
Yanxue WuSchool of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China.ORCID 0000-0002-7154-1336
Wenqing YaoDepartment of Chemistry, Tsinghua University, Beijing 100084, China.
Zilei ChenSchool of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China.
Yingying YuSchool of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China.
Xia LiAnalysis and Test Center, Guangdong University of Technology, Guangzhou 510006, China.
Pan YanPlanetary Environmental and Astrobiological Research Laboratory, School of Atmospheric Sciences, Sun Yat-sen University, Zhuhai 519082, China.
Xiongyao LiCenter for Lunar and Planetary Sciences, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China.
Xiaojia ZengCenter for Lunar and Planetary Sciences, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China.

Funding

GDUT Large-Scale Instruments Open Foundation ATC2022201Lunar Soil Research Program of Chinese Academy of Science 2022440002001553National Natural Science Foundation of China 42203047National Natural Science Foundation of China 42241108Science and Technology Planning Project of Guangzhou 202102021184Science and Technology Planning Project of Guangzhou 2024A04J9999
6 · The paper itself

Abstract

Nanophase iron (np-Fe) is widely distributed on the surface of lunar soil particles, forming as a result of space weathering. These np-Fe particles contribute to the reddening and darkening of the visible to near-infrared spectra of weathered lunar material and serve as critical indicators for assessing the maturity of lunar soil. (1) This article reviews the proposed formation mechanisms of np-Fe particles from studies of Apollo and Luna soils, including the thermal reduction of iron melts, vapor deposition caused by micrometeorite impacts, and hydrogen reduction due to solar wind exposure. (2) Additionally, recent findings from the analysis of Chang'E-5 lunar soil are highlighted, revealing new mechanisms such as sub-solidus decomposition of olivine, impact-driven disproportionation, and FeO eutectic reactions. (3) Experimental studies simulating space weathering through laser and ion irradiation are also discussed and compared. Despite extensive research, a definitive understanding of np-Fe particle formation remains elusive. Previous lunar soil samples have been collected from the near side of the Moon. This year, the Chang'E-6 mission has successfully returned the first-ever lunar soil samples from the far side. These samples are expected to exhibit unique space weathering characteristics, providing new insights into the formation mechanisms of np-Fe in lunar soil.

Indexed as

Chang’E-5′s lunar soilin situ experimentsnp-Fe particles

Identifiers

PMID39685303
PMCPMC11642534

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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.