湘江長(zhǎng)潭株段河床沉積物重金屬污染源的鉛同位素地球化學(xué)示蹤
[Abstract]:The heavy metal content and lead isotopic composition of sediment in Changsha Xiangtan Zhuzhou reach of Xiangjiang River were systematically analyzed by plasma mass spectrometer (ICP-MS). The results show that the sediment of river bed is rich in many kinds of heavy metals, such as V _ (Cr) Cr _ (mn) Co ~ (2 +) Ni ~ (+) ~ (1) ~ (1) (Cu,Zn,Pb) and so on. Among them, the heavy metals such as Cu,Zn,Pb are highly enriched in the sediments of Zhuzhou section. The enrichment characteristics of heavy metals in sediments suggest that there are serious heavy metal pollution in sediments. The lead isotopic composition of sediments is characterized by relatively rich Th lead, with obvious anthropogenic and natural lead, with ~ (206) Pb/~ (207) Pb values ranging from 1.1723 to 1.1855 Pb/~ (208) Pb values ranging from 0.4760 to 0.4786. The natural lead is granite lead, while the artificial lead is lead-zinc ore lead and coal-fired lead. The lead isotopic composition of sediments is granite lead, lead-zinc ore lead, coal-fired lead, ternary mixed lead. The estimation of lead isotopic ratio shows that the average lead ratio of lead ore source in Changsha and Xiangtan sections is 23%, that of coal source is 470.23%, that of natural source lead is 30 ~ 4545%, that of Zhuzhou section is low, and that of natural source lead ratio of Zhuzhou section is lower. The average ratio of lead in ore and lead in coal combustion is 34% and 49% respectively, which is the same as Pb. The ratio of anthropogenic source of sediment in Changsha and Xiangtan is less than 67 and 70 in Zhuzhou. Therefore, heavy metal pollution in the sediment of Xiangjiang Changtan reach deserves high attention.
【作者單位】: 湖南師范大學(xué)資源與環(huán)境科學(xué)學(xué)院;湖南師范大學(xué)環(huán)境重金屬污染機(jī)理與生態(tài)修復(fù)重點(diǎn)實(shí)驗(yàn)室;中國科學(xué)院廣州地球化學(xué)研究所;
【基金】:湖南省高?萍紕(chuàng)新團(tuán)隊(duì)支持計(jì)劃項(xiàng)目(2104) 國家自然科學(xué)基金(41073095) 湖南省高校創(chuàng)新實(shí)驗(yàn)平臺(tái)項(xiàng)目(12K034)
【分類號(hào)】:P597;X142
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 馬振東,單光祥;長(zhǎng)江中下族及鄰區(qū)區(qū)域鉛同位素組成背景及其應(yīng)用[J];地質(zhì)學(xué)報(bào);1996年04期
2 李龍,鄭永飛,周建波;中國大陸地殼鉛同位素演化的動(dòng)力學(xué)模型[J];巖石學(xué)報(bào);2001年01期
3 常向陽;陳永亨;劉敬勇;陳南;吳穎娟;付善明;;粵西云浮含鉈硫化物礦產(chǎn)利用對(duì)環(huán)境的影響:元素—鉛同位素示蹤研究[J];地球?qū)W報(bào);2008年06期
4 張建芳;張剛陽;;鉛同位素在礦床研究和找礦勘探中的應(yīng)用綜述[J];地質(zhì)找礦論叢;2009年04期
5 汪海港;;鉛同位素考古的理論、方法與實(shí)踐[J];文物鑒定與鑒賞;2010年03期
6 _5翼翼;邱}一;毛存孝;洪阿實(shí);霍衛(wèi)國;;我國某些方鉛礦中的鉛同位素分析[J];地質(zhì)科學(xué);1964年02期
7 黃斌;一種用于鉛同位素分析的離子發(fā)射劑[J];地球化學(xué);1980年01期
8 愚根;鉛同位素成分隨時(shí)間變化的某些概念[J];地質(zhì)地球化學(xué);1981年08期
9 彭子成;鄧衍堯;劉長(zhǎng)福;;鉛同位素比值法在考古研究中的應(yīng)用[J];考古;1985年11期
10 蔣少涌;一種鉛同位素地質(zhì)找礦的新方法[J];地質(zhì)科技情報(bào);1988年03期
相關(guān)會(huì)議論文 前10條
1 劉裕慶;劉兆廉;;安徽銅陵地區(qū)石炭系層狀銅鐵硫礦床的鉛同位素研究[A];中國地質(zhì)科學(xué)院礦床地質(zhì)研究所文集(20)[C];1987年
2 王鐵夫;周燕;咸嘉泉;張延潔;;琿春河流域砂金中微量鉛同位素組成及其來源[A];同位素地質(zhì)新進(jìn)展:技術(shù)、方法、理論與應(yīng)用學(xué)術(shù)研討會(huì)論文(摘要)集[C];2003年
3 陳好壽;;我國層控(沉積-改造)礦床中鉛同位素演化的一個(gè)典型模式[A];中國地質(zhì)科學(xué)院宜昌地質(zhì)礦產(chǎn)研究所文集(9)[C];1985年
4 吳開興;胡瑞忠;畢獻(xiàn)武;張乾;彭建堂;;滇西上地幔鉛同位素演化模式探討以及對(duì)滇西富堿斑巖及其相關(guān)巖石鉛同位素組成的詮釋[A];同位素地質(zhì)新進(jìn)展:技術(shù)、方法、理論與應(yīng)用學(xué)術(shù)研討會(huì)論文(摘要)集[C];2003年
5 咸嘉泉;周燕;張延潔;王鐵夫;姚長(zhǎng)龍;;山門銀金礦鉛同位素地球化學(xué)研究[A];同位素地質(zhì)新進(jìn)展:技術(shù)、方法、理論與應(yīng)用學(xué)術(shù)研討會(huì)論文(摘要)集[C];2003年
6 李毅;徐文忻;劉悟輝;李蘅;戴塔根;;滇黔桂地區(qū)微細(xì)浸染型金礦硫鉛同位素地球化學(xué)研究[A];第八屆全國同位素地質(zhì)年代學(xué)和同位素地球化學(xué)學(xué)術(shù)討論會(huì)論文集[C];2005年
7 徐文p,
本文編號(hào):2213139
本文鏈接:http://sikaile.net/kejilunwen/diqiudizhi/2213139.html