Within the crater are peculiarly layered buttes, known as yardangs
The ridges, called yardangs
, extend as long as 150 kilometers (100 miles) with heights of 75 meters (250 feet).
Huge fields of yardangs
that can be seen from space look like corduroy.
The team studied gigantic keel-shaped ridges of rock called yardangs
in the Qaidam Basin in Central Asia.
and some large-scale deflation hollows are exceptions (BOBEK, 1969; MAINGUET, 1970; BREED et al.
Much of the formation's terrain is covered with wind-sculpted hills called yardangs
, a sign that the exposed material erodes easily, says Watters.
Last but not least, the profile of the huyang, with its massive trunk, which is said to take a thousand years to grow, a thousand to die and yet another thousand to decompose once it has fallen, stamps its characteristic mark on the land both when it is alive--for example those incredible watery landscapes visible on the Tarim's middle reaches, recalling Louisiana bayous in the middle of the desert--and when it is dead and its tortured forms, like an army of skeletons, rise up among the dunes or yardangs
, where the shifting riverbed has given way to desert.
In addition, the winds sculpt the yardangs
(streamlined wind-rocks) of Lob Nor and the Qinghai Nanshan.
The findings suggest that the linear dunes are most likely of erosional origin similar to yardangs
with orientations controlled by strikes of joints.
New HiRISE images reveal surface texture and fine-scale features that are giving scientists insight on how yardangs
The geoscientists figured out wind's rock-sculpting abilities by studying gigantic wind-formed ridges of rock called yardangs