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金属和其他元素在各大洲?

我最初认为你只能找到某些诸如铁、铜和其他事情在世界上某些地方,矿山深但我看见几个YouTube视频,你能找到铁岩石就躺在地上。我寻找铜从哪里来,看来,尽管它来自智利,到处都可以找到在少量。这是真的吗?现在我可以走到树林里在世界任何地方找到铜和铁吗?

回答

问题是问题本身的一部分。标题,你问“在每个大洲”在文本,你暗示你谈论的是规模较小的地区。我们可以安全地假设前提之一是,大多数元素分布* *不均。这是一个比你更放松的问题,。例如,看看氢。你会发现更多的氢在一立方米海水比在相同数量的撒哈拉沙漠砂从尼罗河(但不是零——仍然是水在撒哈拉沙漠,甚至最干燥的地方和氢也可以发现其他一些化学物质)的一部分。但是有湖泊和瀑布一样的非洲撒哈拉沙漠,所以非洲大陆* *的包含更多的氢比撒哈拉沙漠。可以将类似的推理应用到大多数元素。如果你真正问大陆,答案可能是:“几乎每一个元素将发现* *的地方在每个大陆”。当你变得更细粒度的,它变得更加难以回答。 It is *theoretically* conceivable that there might be one cubic meter of earth surface that is missing some elements. In the spirit of your question, I don't think we should go more granular than that. And I'm also only looking at "stuff" near or above the surface of the earth, say, within range of mining or drilling. The next part of the question is, which elements are candidates for missing completely? If an element (or a compound containing it) is water-soluble, odds are that after 4 billion years, it has distributed through nearly all water (with the possible exception of rain water, which has been distilled and only picked up materials suspended in the atmosphere). And since water is pretty much everywhere on earth, anything that is water soluble probably found its way, in minute quantities, in every crevice. The best candidates for insolubility would probably be noble gases and certain metals. But even those are, to a small extent, soluble. I am not aware of any element that is absolutely insoluble in water in any form. So the answer to your question is likely: while it is theoretically possible that there are a few spots (of more than one cubic meter) that do not contain *any* of a particular non-radioactive element, it is exceedingly unlikely. Materials on earth just have been too thoroughly mixed.

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