天山现代雪尘的磁性特征及来源分析

IF 3.1 3区地球科学 Q2 GEOGRAPHY, PHYSICAL

Aeolian Research Pub Date : 2025-03-16 DOI:10.1016/j.aeolia.2025.100970

Yan Liu , Jia Jia , Lai Zhao , Yixiao Zhang , Junhuai Yang , Zhenhao Zhu , Yijiao Fan , Ziwei Tao , Zhenyuan Yao

{"title":"天山现代雪尘的磁性特征及来源分析","authors":"Yan Liu , Jia Jia , Lai Zhao , Yixiao Zhang , Junhuai Yang , Zhenhao Zhu , Yijiao Fan , Ziwei Tao , Zhenyuan Yao","doi":"10.1016/j.aeolia.2025.100970","DOIUrl":null,"url":null,"abstract":"<div><div>Dust deposited in high-altitude snow is often exceptionally well-preserved, making high-altitude snow deposits an excellent medium for studying dust fluxes. We investigated the magnetic characteristics of snow dust at high altitudes in the Tianshan Mountains and then determined its potential source areas. Our results indicated the following: 1) The magnetic mineralogy of snow dust at high altitudes in the Tianshan Mountains is mainly magnetite with a minor amount of hematite. 2) There is a significant pollution contribution to the high-altitude snow in the Tianshan Mountains, as well as a natural contribution from surface sediments in the Yili Basin. 3) Composite fingerprint factor analysis showed that the relative contribution of anthropogenic pollution to snow dust in the Tianshan Mountains is about 6–42 %. Our results also indicate that the dust release capacity of sedimentary environments in the Yili Basin can be ordered as: desert > fluvial sediments > loess > alluvial fan.</div></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"73 ","pages":"Article 100970"},"PeriodicalIF":3.1000,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Magnetic characteristics and source analysis of modern snow dust from the Tianshan Mountains\",\"authors\":\"Yan Liu , Jia Jia , Lai Zhao , Yixiao Zhang , Junhuai Yang , Zhenhao Zhu , Yijiao Fan , Ziwei Tao , Zhenyuan Yao\",\"doi\":\"10.1016/j.aeolia.2025.100970\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Dust deposited in high-altitude snow is often exceptionally well-preserved, making high-altitude snow deposits an excellent medium for studying dust fluxes. We investigated the magnetic characteristics of snow dust at high altitudes in the Tianshan Mountains and then determined its potential source areas. Our results indicated the following: 1) The magnetic mineralogy of snow dust at high altitudes in the Tianshan Mountains is mainly magnetite with a minor amount of hematite. 2) There is a significant pollution contribution to the high-altitude snow in the Tianshan Mountains, as well as a natural contribution from surface sediments in the Yili Basin. 3) Composite fingerprint factor analysis showed that the relative contribution of anthropogenic pollution to snow dust in the Tianshan Mountains is about 6–42 %. Our results also indicate that the dust release capacity of sedimentary environments in the Yili Basin can be ordered as: desert > fluvial sediments > loess > alluvial fan.</div></div>\",\"PeriodicalId\":49246,\"journal\":{\"name\":\"Aeolian Research\",\"volume\":\"73 \",\"pages\":\"Article 100970\"},\"PeriodicalIF\":3.1000,\"publicationDate\":\"2025-03-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Aeolian Research\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1875963725000114\",\"RegionNum\":3,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"GEOGRAPHY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Aeolian Research","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1875963725000114","RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"GEOGRAPHY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

摘要

沉积在高海拔积雪中的粉尘通常保存得非常完好，这使得高海拔积雪成为研究粉尘通量的绝佳介质。研究了天山高海拔地区积雪的磁性特征，确定了积雪的潜在源区。结果表明：1)天山高海拔地区雪尘磁性矿物学特征以磁铁矿为主，含少量赤铁矿。(2)天山地区高海拔积雪存在明显的污染贡献，伊犁盆地表层沉积物也有自然贡献。(3)综合指纹因子分析表明，人为污染对天山地区雪尘的相对贡献约为6 ~ 42%。研究结果还表明，伊犁盆地沉积环境的粉尘释放能力可划分为：荒漠；河流沉积物；黄土比;冲积扇。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Magnetic characteristics and source analysis of modern snow dust from the Tianshan Mountains

Dust deposited in high-altitude snow is often exceptionally well-preserved, making high-altitude snow deposits an excellent medium for studying dust fluxes. We investigated the magnetic characteristics of snow dust at high altitudes in the Tianshan Mountains and then determined its potential source areas. Our results indicated the following: 1) The magnetic mineralogy of snow dust at high altitudes in the Tianshan Mountains is mainly magnetite with a minor amount of hematite. 2) There is a significant pollution contribution to the high-altitude snow in the Tianshan Mountains, as well as a natural contribution from surface sediments in the Yili Basin. 3) Composite fingerprint factor analysis showed that the relative contribution of anthropogenic pollution to snow dust in the Tianshan Mountains is about 6–42 %. Our results also indicate that the dust release capacity of sedimentary environments in the Yili Basin can be ordered as: desert > fluvial sediments > loess > alluvial fan.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Aeolian Research GEOGRAPHY, PHYSICAL-

CiteScore

7.10

自引率

6.10%

发文量

审稿时长

>12 weeks

期刊介绍： The scope of Aeolian Research includes the following topics: • Fundamental Aeolian processes, including sand and dust entrainment, transport and deposition of sediment • Modeling and field studies of Aeolian processes • Instrumentation/measurement in the field and lab • Practical applications including environmental impacts and erosion control • Aeolian landforms, geomorphology and paleoenvironments • Dust-atmosphere/cloud interactions.