The farmers found the alluvial deposits at the mouth of the river very fertile.
农民发现这条河口底下沉积物很肥沃。
Mainly developed are fan - delta, deep lake turbidite and calcirudite deposit, and also alluvial fan deposit in early period.
形成砂岩和粒屑灰岩集体,为油气集提供了有场所。
Four alluvial deposits distributing along Yuanjiang river and the diamondiferous rocks that supply diamonds to these placer deposits have striking properties of varied sources and multi-phases.
沅水流域分布4个金刚石砂矿床,供给金刚石砂矿含金刚石岩体具多多源特点。
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And the top layers of softer alluvial deposits he named Tertiary and Quaternary.
他将顶较软的 命名为第三纪和第四纪。
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