首页 | 本学科首页   官方微博 | 高级检索  
     检索      

原生硅酸盐矿物风化产物的研究进展——以云母和长石为例
引用本文:李福春,李莎,杨用钊,程良娟.原生硅酸盐矿物风化产物的研究进展——以云母和长石为例[J].岩石矿物学杂志,2006,25(5):440-448.
作者姓名:李福春  李莎  杨用钊  程良娟
作者单位:南京农业大学,资源与环境科学学院,江苏,南京,210095
摘    要:研究云母和长石等原生硅酸盐矿物的风化速率和风化产物对于深入理解土壤发生过程、营养元素循环以及全球气候变化具有重要的理论意义。本文从自然风化、人工化学风化和生物风化3方面总结了原生硅酸盐矿物风化作用及其产物的特点,重点阐述了微生物参与下的生物风化作用和生物矿化作用及其意义。野外观察和室内实验研究结果表明,微生物可以加速矿物的分解,而且其细胞表面及其产生的胞外多聚糖可以作为次生矿物成核的模板。

关 键 词:原生硅酸盐矿物  风化作用  生物矿化作用  微生物  云母  长石
文章编号:1000-6524(2006)05-0440-09
收稿时间:2006-01-24
修稿时间:2006-01-242006-04-19

Advances in the study of weathering products of primary silicate minerals, exemplified by mica and feldspar
LI Fu-chun,LI Sh,YANG Yong-zhao and CHENG Liang-juan.Advances in the study of weathering products of primary silicate minerals, exemplified by mica and feldspar[J].Acta Petrologica Et Mineralogica,2006,25(5):440-448.
Authors:LI Fu-chun  LI Sh  YANG Yong-zhao and CHENG Liang-juan
Institution:College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
Abstract:Researches on the weathering rate and products of primary silicate minerals are of great importance in the explanation of soil-forming process, cycling process of nutrient elements and global climate change. This paper has summed up the weathering of primary silicates through three different ways, i.e., natural, artificial and biochemical weathering processes, and dealt with the products formed. Biological weathering and biological mineralization as well as their significance are emphatically discussed. Field observations and laboratory experiments indicate that microbes can accelerate the weathering reactions of aluminosilicate minerals. Moreover, microbial cell surfaces and extracellular polymers serve as templates for the nucleation and precipitation of secondary mineral phases.
Keywords:primary silicate minerals  weathering process  biomineralization  microorganism  mica  feldspar
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《岩石矿物学杂志》浏览原始摘要信息
点击此处可从《岩石矿物学杂志》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号