trace element
trace element
1. An element that occurs in minute but detectable quantities in minerals and rocks, much less than 1 per cent. All elements except the most common rock-forming ones (O, Si, Al, Fe, Ca, Na, K, Mg, and Ti) generally occur as trace elements, except where they are locally concentrated in their ores.
2. See essential element.
1. An element that occurs in minute but detectable quantities in minerals and rocks, much less than 1 per cent. All elements except the most common rock-forming ones (O, Si, Al, Fe, Ca, Na, K, Mg, and Ti) generally occur as trace elements, except where they are locally concentrated in their ores.
2. See essential element.
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trace element
