Dune surface wind velocity distribution differences can lead to wind erosion and aeolian sand in different part of the dune.

沙丘表面风速分布的差异性是导致沙丘不同部位发生风蚀与风积的主要原因。

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Nabkha dune is a kind of typical aeolian landform. The wind power, sand source and plant are the mainly influencing factors of the development of nabkha.

灌丛沙堆是一种重要的风积地貌类型，风力、沙源、植物是影响灌丛沙堆发育的主要因素。

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The low numerical value distribution of these two types trace elements in the Aeolian sand facies represents erosion and accumulation under wind force during the cold-dry climate.

这两种类型元素在风成沙中呈现的含量低值揭示了其时干旱寒冷气候作用下 风力的侵蚀 搬运与堆积作用；

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At first glance, it might seem obvious that it was through the action of flowing water (fluvial), but the Curiosity team needs to rule out the possibility that these rocks were deposited by the wind (aeolian) or by some kind of surge, such as the fast-moving clouds of gas and rock that will often plummet down the sides of particular types of volcano (a pyroclastic surge).

BBC: Curiosity Mars rover to investigate classic rock type