Clay and iron oxide stick to unexposed rocks in these areas, producing their namesake "varnish."
The "Hamada" types of these areas are rockier than other types. One type of landform found in these areas contains a "slip face" and a trough between peaks known as the "slack." The Köppen classification breaks these types of areas down into BWh and BWk types. Clay and iron oxide stick to unexposed rocks in these areas, producing their namesake "varnish." Closely packed rock fragments up to cobble size can form Gibber plains in these regions, also known as their namesake "pavement." Large open areas in this climate system are called ergs. They typically form because of the "rain shadow" effect of a mountain range. For 10 points, name this type of climate characterized by dry conditions and occasionally sand dunes, typified by the Rub al Khali and Sahara.
The "Hamada" types of these areas are rockier than other types.
deserts