Influence of chemical weathering on the composition of the continental crust: Insights from Li and Nd isotopes in bauxite profiles developed on Columbia River Basalts

Fresh Columbia River Basalts, bauxites (weathered basalts), eolian dust samples were analyzed for major and trace elements, mineralogy, lithium and Nd isotopes to investigate chemical weathering of basalts and its influence on the composition of the continental crust.

对哥伦比亚河基性岩、风化基性岩（即风化玄武岩）以及风尘样品进行了主要和微量元素、矿物学、锂和钕同位素的分析，以研究玄武岩的化学风化及其对大陆地壳组成的影响。