A fan-shaped deposit where a fast flowing stream flattens out.
1So he made a quick sketch of the landscape, the canyon mouth, the alluvial fan, and then drew the trench.
2Above Curiosity's landing site, orbiters have photographed an alluvial fan (below) -a fan-shapedarea where debris once spread out.
3The giant shale seemed to melt away into this alluvial fan of snow like a turbulent stream feeding into glassy, slow water.
4The enemy's position consisted of a line of sangars blocking the roads from the river up to the alluvial fan on which they were placed.
5And the alluvial fans are no good either-flashflooding.
6From alluvial fans and flood plains they are constantly being taken up and swept farther on downstream.
7Where rivers descend from a mountainous region upon the plain they may build alluvial fans of exceedingly gentle slope.
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Translations for alluvial fan