广西贵港红土风化壳的地球化学特征

来源期刊：中南大学学报(自然科学版)1994年第2期

论文作者：周芳 陈世益

文章页码：151 - 155

关键词：红土风化壳; 地球化学; 广西贵港

Key words：lateritic weathering crust; geochemistry; Guigang Guangxi

摘    要：广西中南、东南部碳酸盐岩红土风化壳发育完好.鉴于整个剖面中化学组分的渐变关系和剖面底部过渡层的存在,可以确认这是碳酸盐岩的风化产物.本文通过对贵港市覃塘红土风化壳各层化学组分的计算和分析研究,推断红土风化壳形成的地球化学过程,指出剖面各层位是与所处外部环境取得物理化学平衡的产物.这将有助于阐明红土型矿产的形成条件,指出找矿方向.

Abstract: The lateritic weathering crust in carbonate rocks is well developed in the central southand southeast of Guangxi.In view of the features that gradually change in chemical composi-tion in all sections and the transition bed at its bottom ,it can be confirmed that the lateriticweathering crust is the weathering product of carbonate rocks.The chemical composition ofeach bed of lateritic weathering crust in Qintang are calculated,analysed and studied here,which explains the geochemical process of formation of the lateritic weathering crust,andshows that each bed in all sections is the balanced product physicochemistry with the exter-nal environment.All mentioned above will be advantageous to the elaboration of formingcondition of lateritic mineral resources and their prospecting direction.