贵阳乌当石炭系底部古风化壳地球化学特征及古环境意义

张英帅, 毛家仁, 王启林, 肖宇, 王甘露

Geochemical characteristics and palaeoenvironmental significance of the paleo-weathered crust at the Carboniferous bottom in Wudang of Guiyang

ZHANG Yingshuai, MAO Jiaren, WANG Qilin, XIAO Yu, WANG Ganlu

A-CN-K三角模型图^{[ 16 , 18 ]} A=Al₂O₃; CN=CaO^*+Na₂O; K=K₂O Ⅰ、Ⅱ分别表示风化趋势的两个阶段