CHAPTER 18 Key Terms
Match each of the terms on the left with its definition on the right. Click on the term first and then click on the matching definition. As you match them correctly, they will move to the bottom of the activity.
aeolian (or eolian) bajada barchan dune Basin- butte chimney deflation desert pavement erg inselberg lag deposit mesa pedestal rock petroglyph playa playa lake reg rock varnish saline lake sand dune slip face star dune transverse dune ventifact yardang | A hill or ridge formed by the accumulation of windblown sand. A wind- A long, narrow sand dune with the ridge crest perpendicular (or transverse) to the prevailing wind. A reg that results from the removal of smaller particles, such as clay and silt, by deflation. A large, weathered outcrop of bedrock surrounded by a flat alluvium- The leeward side of a sand dune, where sand settles at its angle of repose. A desert landscape dominated by actively moving sand dunes. The removal of sediments and lowering of the land surface by wind erosion. A thin, weathered, and darkened surface on exposed rock surfaces formed by the activities of bacteria and the accumulation of windblown clay particles. (pronounced bar- An elongated ridge formed by deflation and sand abrasion in a desert; generally, two to three times longer than it is wide. A flat stony plain. A slender spire of rock with a flat top. A permanent body of salty water occupying a playa. (pronounced ba- A star- A medium- A flat, dry lake bed in a desert valley in an internal drainage basin. A flat- A prehistoric rock carving often made by scratching away rock varnish from a rock’s surface. (or eolian) Of or relating to wind. A remnant of a layer of erosion- A landscape located in the southwestern United States where the crust is being stretched apart through rifting, forming a large internal drainage basin with a series of tilted fault blocks. A reg composed of tightly interlocked rocks that resembles a cobblestone street. A shallow temporary lake that forms in an internal drainage basin. |