Answers

2016-07-17T11:29:30+08:00
For me, the reason presence of metallic deposits in trenches and volcano, for the volcano the much dissolved metal in the solutions leak from the surrounding rocks near from the volcanic areas. and other minerals can form from hot solutions that circulate through cracking rock and based on the other hand, the reason why the presence of mineral deposits is the most metallic deposits are result of plate tectonic activity.
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