油页岩灰渣中稀土元素和微量元素富集度均高于油页岩。
The contents of both REE and trace elements in the oil shale residue are higher than those in oil shale.
银河中心的恒星都比较古老，富集金属元素，重元素的丰度很高。
"Stars in the center of the Milky Way are old and 'metal-rich' with a high abundance of heavy elements," Bobrowsky said.
该蛇绿岩有高的稀土和微量元素丰度，表明其来源于富集地幔。
This ophiolite has higher REE and trace element abundances, suggesting it was derived from the enriched mantle.
对于大多数金属成矿元素 ，地壳特别是上地壳是大多数矿石和矿胎的储库 ，地壳丰度是元素富集成矿的物质基础。
For most ore metals, the continental crust, especially, the upper continental crust, is the repository of all ores and protores.
对于大多数金属成矿元素 ，地壳特别是上地壳是大多数矿石和矿胎的储库 ，地壳丰度是元素富集成矿的物质基础。
For most ore metals, the continental crust, especially, the upper continental crust, is the repository of all ores and protores.
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