Environmental geochemical characteristics of Xuanwei Formation coal and their controlling geological factors, with comments on the relationship with lung cancer incidence and distribution

IF 1 4区地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS

Geochemistry-Exploration Environment Analysis Pub Date : 2023-03-01 DOI:10.1144/geochem2022-034

Zailin Chen, Zeming Shi, S. Ni, J. Hu

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引用次数: 1

Abstract

This paper attempts to review the environmental geochemical characteristics (re.: enriched elements) in coals of the late Permian Xuanwei Formation of Northwest Yunnan, China, and gauge the possible existence of significant relationships with the incidence and distribution of lung cancer in the region. To achieve this goal, 27 samples were collected in this region; the mineralogical characteristics and major and trace elements were analyzed; the Pb isotopic composition was traced; the contribution of the source rock was calculated; and principal component analysis (PCA) was carried out. Our current findings are summarized as follows: (1) the minerals are mainly quartz (silica), chamosite, calcite, and kaolinite. (2) MnO, SiO 2 , V, Cr, Co, Ni, Cu, Cd, and W are enriched. (3) The LREYs (La, Ce, Pr, Nd, Pm, Sm, and Eu) and HREYs (Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y) have similar enrichment degrees, and the fractionation degree of HREYs is higher than LREYs. (4) The source distance restricts the Pb isotope composition. (5) MnO, V, Cr, Co, Ni, Cu, and Cd are controlled by the Emeishan basalt; the origin of SiO 2 (authigenic quartz) is unclear. (6) The lung cancer tissue characteristics, PCA, and toxicological characteristics of elements suggest that the main components of enriched elements probably come from V, Cr, Co, Ni, and Cd, not SiO 2 . In conclusion, the carcinogenic elements V, Cr, Co, Ni, and Cd may be related to lung cancer. Since our study is highly explorative, this result leaves many interesting aspects to be further studied. Thematic collection: This article is part of the Geochemical processes related to mined, milled, or natural metal deposits collection available at: https://www.lyellcollection.org/topic/collections/geochemical-processes-related-to-mined-milled-or-natural-metal-deposits Supplementary material: https://doi.org/10.6084/m9.figshare.c.6444476

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宣威组煤的环境地球化学特征及其控制地质因素——兼论与肺癌的发病分布关系

本文试图对滇西北晚二叠世宣威组煤的环境地球化学特征(即富集元素)进行综述，并推测其与该地区肺癌的发病和分布是否存在显著关系。为实现这一目标，在该地区采集了27份样本;分析了矿物学特征及主微量元素;测得铅同位素组成;计算了烃源岩的贡献;进行主成分分析(PCA)。研究结果表明:(1)矿物主要为石英(二氧化硅)、茶辉石、方解石和高岭石。(2) MnO、sio2、V、Cr、Co、Ni、Cu、Cd、W富集;(3) LREYs (La、Ce、Pr、Nd、Pm、Sm、Eu)和HREYs (Gd、Tb、Dy、Ho、Er、Tm、Yb、Lu、Y)富集程度相似，且HREYs的分馏程度高于LREYs。(4)震源距离限制了铅同位素组成。(5) MnO、V、Cr、Co、Ni、Cu、Cd受峨眉山玄武岩控制;sio2(自生石英)的来源尚不清楚。(6)肺癌组织特征、PCA和元素毒理学特征提示富集元素的主要成分可能来自V、Cr、Co、Ni和Cd，而非sio2。综上所述，致癌元素V、Cr、Co、Ni、Cd可能与肺癌有关。由于我们的研究具有很强的探索性，这个结果留下了许多有趣的方面有待进一步研究。专题收集:本文是与开采、研磨或天然金属矿床收集相关的地球化学过程的一部分，可在:https://www.lyellcollection.org/topic/collections/geochemical-processes-related-to-mined-milled-or-natural-metal-deposits补充材料:https://doi.org/10.6084/m9.figshare.c.6444476

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来源期刊

Geochemistry-Exploration Environment Analysis 地学-地球化学与地球物理

CiteScore

3.60

自引率

16.70%

发文量

审稿时长

1 months

期刊介绍： Geochemistry: Exploration, Environment, Analysis (GEEA) is a co-owned journal of the Geological Society of London and the Association of Applied Geochemists (AAG). GEEA focuses on mineral exploration using geochemistry; related fields also covered include geoanalysis, the development of methods and techniques used to analyse geochemical materials such as rocks, soils, sediments, waters and vegetation, and environmental issues associated with mining and source apportionment. GEEA is well-known for its thematic sets on hot topics and regularly publishes papers from the biennial International Applied Geochemistry Symposium (IAGS). Papers that seek to integrate geological, geochemical and geophysical methods of exploration are particularly welcome, as are those that concern geochemical mapping and those that comprise case histories. Given the many links between exploration and environmental geochemistry, the journal encourages the exchange of concepts and data; in particular, to differentiate various sources of elements. GEEA publishes research articles; discussion papers; book reviews; editorial content and thematic sets.