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Riverine source-bordering sand dunes, as a result of active fluvial–aeolian interactions, are a pronounced feature on the semiarid Xiliaohe Plain, Northeast China. By means of satellite imagery analysis, and both field survey and observation, this paper presents a new type of riverine source-bordering sand dunes — deflated rims, on the downwind margins of the Xiangshui River. They largely result from...
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