placer

1.placer gold deposits.

砂积金。

2.he was a shrewd placer of the ball.

他是个高明的传球手。

3.Regional volcanic strata are the source of placer gold and laterization process is the main stage of formation of placer gold.

区域火山岩地层是砂金的，地表赤红壤化可能是砂金形成的主要阶段。

4.last year's fifth placer had a good run.

去年的五名跑得不错。

5.The native minerals originating from Tertiary basanite of Yaoshan formation,the placer is in water systems around Fangshan.

原生产纪的尧山组玄武质碧玄岩中，砂则分布方山周围的水系中。

6.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个金刚石砂床，供给金刚石砂的含金刚石岩体具多期多特点。

7.The types of deposits basically are differential metasomatism in the later magma, pneumatolytic hydrothermal process, pegmatite process, residual deposits and placer deposits.

床类型以岩浆晚期分异交代型、气成热液型、伟晶岩型、风化壳型和砂型为主。

8.Quartz, zircon, magnetite, gold are major constituents of littoral placers in Shandong province, while shell, ballstone, ilmenite, rutile being secondary.

山东省滨海砂以石英、锆英石、磁铁、砂金等为主,其次为贝壳、球石、钛铁、金红石等。