yardangn.

/ˈjɑːdaŋ/

Forms: Also jardang.

Etymology: < Turkish, ablative of yar steep bank, precipice.

Physical Geography.

A sharp, irregular ridge of sand or the like, lying in the direction of the prevailing wind in exposed desert regions and formed by erosion by the wind of adjacent less resistant material.

ΘΚΠ

the world > the earth > land > landscape > high land > ridge > [noun] > ridge of sand

full1749

wreath1772

wave1789

sand belt1865

yardang1904

1904 S. Hedin Sci. Results Journey in Central Asia I. xxvii. 439 At intervals furrows or trenches in the clay sub~soil, called jardangs, traced between long elevations or ridges, crop up amongst the dunes.

1934 Bull. Geol. Soc. Amer. 45 facing p. 160 (caption) Looking down one of the narrower wind-scoured troughs, with a sharp yardang (seven feet high) on the left and a higher one on the right.

1970 R. J. Small Study of Landforms ix. 301 Probably the only landforms of deserts that can be confidently ascribed to wind abrasion alone are the comparatively unimportant ‘yardangs’ and allied ‘ridge-and-furrow’ features.

1979 Nature 5 Apr. 535/1 In other regions [of Mars], the surface has been stripped, yardangs have formed, and in general the topography seems to have been largely configured by aeolian activity.

This entry has not yet been fully updated (first published 1986; most recently modified version published online December 2020).

单词	yardang
释义	yardangn. /ˈjɑːdaŋ/ Forms: Also jardang. Etymology: < Turkish, ablative of yar steep bank, precipice. Physical Geography. A sharp, irregular ridge of sand or the like, lying in the direction of the prevailing wind in exposed desert regions and formed by erosion by the wind of adjacent less resistant material. ΘΚΠ the world > the earth > land > landscape > high land > ridge > [noun] > ridge of sand full1749 wreath1772 wave1789 sand belt1865 yardang1904 1904 S. Hedin Sci. Results Journey in Central Asia I. xxvii. 439 At intervals furrows or trenches in the clay sub~soil, called jardangs, traced between long elevations or ridges, crop up amongst the dunes. 1934 Bull. Geol. Soc. Amer. 45 facing p. 160 (caption) Looking down one of the narrower wind-scoured troughs, with a sharp yardang (seven feet high) on the left and a higher one on the right. 1970 R. J. Small Study of Landforms ix. 301 Probably the only landforms of deserts that can be confidently ascribed to wind abrasion alone are the comparatively unimportant ‘yardangs’ and allied ‘ridge-and-furrow’ features. 1979 Nature 5 Apr. 535/1 In other regions [of Mars], the surface has been stripped, yardangs have formed, and in general the topography seems to have been largely configured by aeolian activity. This entry has not yet been fully updated (first published 1986; most recently modified version published online December 2020). < n.1904
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