The rock varnish named for these regions consists of clay with manganese and iron oxides.
The rock varnish named for these regions consists of clay with manganese and iron oxides. Streamlined ridges known as yardangs and mountain remnants next to low-relief surfaces known as pediments are two of the erosional features associated with these environments. Layers of gravel comprise their namesake pavements, formed by deflation. They sometimes contain playas [PLIGH- uz], which can be important sources for evaporite minerals. Often found near the descending portions of the polar and Hadley cells, or near mountain ranges that produce rain shadows, FTP name these arid environments.
The rock varnish named for these regions consists of clay with manganese and iron oxides.
{deserts}