What is the main difference between a zeuge and an yardang ?
The yardang is smaller than a zeuge.
Yardangs are formed on vertical strata while zeugen on horizontal strata.
Yardangs are formed by deflation while zeugen by abrasion.
There is no difference. The two names describes the same landform.
Yardangs are formed on vertical hard/soft layers of rock, while zeugen (this is its plural form) are formed on horizontal bands of hard/soft rocks giving it a more mushroom-like shape. The Great Sphinx of Giza has been sculpted in a yardang.