Sediment is deposited on a small and steep alluvial fan .

峡谷沉积物在小而陡的冲积扇上沉积了下来。

Given that it cuts alluvial fan sediments , the fault must be relatively young .

如果断层带切割了冲积扇，那么断层带应该相当年轻。

One such project is dongtan , a planned eco-city on an alluvial island near shanghai .

东滩即为方案之一：上海之侧，冲积之岛，东滩生态城进入规划。

Installed heliostats in solar field one and adjacent section of undisturbed desert terrain of the site 's alluvial fan .

一号基地安装的日光反射装置和附近冲积扇地区未被打扰的沙漠地段。

Because the region around new orleans is composed of alluvial soil , there is no paving material close at hand .

由于新奥尔良周边地区都是沉积着冲积土，没有现成的材料可以用来铺路。