河西走廊酒东沙地风沙沉积物理化特征及其环境意义

郭雪阳, 杨林海, 程良清, 胡光印, 胡菁菁

Physical and chemical characteristics of aeolian sands in Jiudong Sandy Land of Hexi Corridor and its environmental significance

Xueyang Guo, Linhai Yang, Liangqing Cheng, Guangyin Hu, Jingjing Hu

图7 酒东沙地表层风沙沉积物A-CN-K三角图（长虚线箭头表示早期大陆风化趋势；短虚线箭头表示中期大陆风化趋势；Ka=高岭石、Sm=蒙脱石、PI=斜长石、IL=伊利石、Mu=白云母、Bi=黑云母、Ks=钾长石）

Fig.7 A-CN-K triangle diagram of aeolian sand sediments on the surface of Jiudong Sandy Land （Long dashed arrows indicate early continental weathering trends； Short dashed arrows indicate the mediμm-term continental weathering trends； Ka= kaolinite，Sm=montmorillonite，PI=plagioclase，IL=Illite，Mu=muscovite，Bi=black mica，Ks=potassiμm feldspar）