湖泊科学2012，Vol.24Issue(4)：615-622,8.
贵州省麦岗水库沉积物磁性特征及其与粒度的关系
Magnetic properties and their relationships with particle size of sediments from Maigang Resevoir, Guizhou Province, China
摘要
Abstract
Three sediment cores were extracted from Maigang Reservoir, located in the southwest of Guizhou Province, China. Fer-rimagnetic minerals are the main magnetic minerals of the sediments. There are also other magnetic minerals, for instance, antifer-romagnetic component. Super-paramagnetic grains were widely observed in the sediments. There is no significant relationship between mineral magnetic parameters, %\s. Xa . SOFT and textural parameters. Mineral magnetic parameters, Xakm ? SIRM, F^q is correlated with textural parameters but with low correlation coefficients; Given the significant correlations betweenXarm/xu'Xaum^ SIRM and textural parameters, χλarm/χif ? and χλRM/SIRM can be used as a proxy of particle size. Results presented here do indicate that mineral magnetic parameters can be used as a particle size proxy. These data and other studies on different environments demonstrate that the relationship between mineral magnetic parameters and textual properties can vary from different sedimentary environments even in the same overall sedimentary system, and in some circumstances, mineral magnetic parameters are not suitable to be particle size proxy. To employ magnetic characteristics as a particle size proxy, the mechanism behind the relationship between magnetic parameters and particle size should be explored fully for each sedimentary environment.关键词
磁性特征/粒度/沉积物/麦岗水库Key words
Magnetic properties/ particle size/ sediment/ Maigang Reservoir引用本文复制引用
李春梅,王红亚..贵州省麦岗水库沉积物磁性特征及其与粒度的关系[J].湖泊科学,2012,24(4):615-622,8.基金项目
国家重点基础研究发展计划“973”项目(2003CB415201)和科技部基础性工作专项课题项目(2007FY140800-1)联合 （2003CB415201）
