alluvial deposit

同根派生

This saphire deposit is occurred in the Holocene alluvium.
鑛牀賦存於全新統(tǒng)沖積層。
Reportedly, the site is mainly underlain by alluvial deposits of Quaternary Age comprising sand and clay.
據(jù)報道，站點由主要強調(diào)包括沙子和黏土的四個一組的年齡沖積層。
The Green River Formation of Colorado, Wyoming, and Utah contains alluvial fan deposits and playa evaporites created in a huge lake whose level fluctuated for millions of years.
科羅拉多，懷俄明州和猶他州的綠色河形成含有扇形沖積物和在一個長達數(shù)百萬年水麪漲落的巨大湖中産生的沙漠盆地蒸發(fā)鹽。