Based on the characters of water erosion and rock clasts, the Zhangxia Loess is possibly a product of aeolian-talus-pluvial process.

• 张夏黄土下部呈现明显的水流侵蚀痕迹，中间夹有围岩碎屑，应属于风成、坡积、洪积成因的黄土状土。