【摘要】 罗布泊湖心区近地表层微量元素分布特征为:同类元素的含量变化趋势基本一致,如较稳定元素Ti、Cr、Co、N i,在中部60-250cm层段含量高,但有所波动;活动性中等的Cu、Pb、As其变化则以198cm为界,上段含量少、变幅小;另外还有些元素在上段相应层位中缺失,如Nb在24-48cm和78-150cm段、Zr在36-42cm和78-144cm段缺失。微量元素含量的分段与岩性的变化基本一致。不同时段离子类型、含量以及微量元素的差异在一定程度上反映相应阶段的环境特征。更多还原

【Abstract】 The distribution of trace element in stratum near the earth’s surface at center area of Lop Nur lake is that:the Ti,Cr,Co and Ni are higher in central section of 60-250cm,but show some fluctuation.The depth of 198cm is the boundary for the change of Cu,Pb,As.In upper section the contents are less and the fluctuation range is small;In addition,some elements are lack in relevant stratum of upper section,such as Nb is lack in stratum of 24-48cm and 78-150cm,Zr is lack in stratum of 36-42cm and 78-144cm.Stage division of trace element content is similar to the lithological change on the whole.In different stage the difference of type and content of ions,as well as trace element could reflect environment characters of relevant stage to a certain degree.更多还原