气候变化领域集成服务门户(CCPortal): Different Enrichment Patterns of Magnetic Particles Modulated by Primary Iron-Phosphorous Input

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DOI	10.1029/2020GL090439
	Different Enrichment Patterns of Magnetic Particles Modulated by Primary Iron-Phosphorous Input
	Ren J.; Long X.; Ji J.; Barrón V.; Torrent J.; Wang Y.; Xie S.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:22
英文摘要	Magnetic particles associated with iron (Fe) oxides are widespread on the surface of Earth and Mars and serve as reasonable climatic indicators. Ferrimagnetic maghemite (Mgh) and antiferromagnetic hematite (Hm), which dominate magnetism and redness, often coexist or compete with each other in soils and sediments. The formation efficiency of Mgh relative to Hm could be modulated by geochemical background besides climate, especially by phosphate (P), which has a high affinity for the surfaces of precursor iron oxides in natural systems. We investigated two Ferralsol sequences around a P mining field with similar climates and contrasting P/Fe ratios. High P/Fe ratios retard iron oxide crystallization, grain growth, and transformation into Hm, thereby promoting more effective accumulation of ferrimagnetic Mgh as an intermediate product. The lack of ligand-protected effects well interprets asynchronous changes in magnetism and redness in soils and sediments across large spatiotemporal scales, especially in highly weathered soils. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Ferrimagnetism; Grain growth; Hematite; Soils; Antiferromagnetics; Climatic indicators; Enrichment patterns; Geochemical background; Intermediate product; Oxide crystallization; Soils and sediments; Spatio-temporal scale; Sediments; Ferralsol; hematite; iron; iron oxide; maghemite; Mars; phosphate; phosphorus; spatiotemporal analysis
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169396
作者单位	School of Geographical Sciences, Southwest University, Chongqing, China; Institute of Surficial Geochemistry, College of Earth Sciences and Engineering, Nanjing University, Nanjing, China; Departamento de Agronomía, Universidad de Córdoba, Córdoba, Spain
推荐引用方式 GB/T 7714	Ren J.,Long X.,Ji J.,et al. Different Enrichment Patterns of Magnetic Particles Modulated by Primary Iron-Phosphorous Input[J],2020,47(22).
APA	Ren J..,Long X..,Ji J..,Barrón V..,Torrent J..,...&Xie S..(2020).Different Enrichment Patterns of Magnetic Particles Modulated by Primary Iron-Phosphorous Input.Geophysical Research Letters,47(22).
MLA	Ren J.,et al."Different Enrichment Patterns of Magnetic Particles Modulated by Primary Iron-Phosphorous Input".Geophysical Research Letters 47.22(2020).