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从在洋底一发现锰铁结核之时起,就对其化学成分发生兴趣,但只是在最近二、三十年才进行详细的地球化学研究。本文打算阐明该问题的三个方面:化学成分、年龄和成因。为此,我们综合了过去十年内出版的资料,以及我们自己的资料,包括结核中20种化学元素(铂族元素、银、金、铋等)含量的最新结果。 1 锰铁结核的化学成分已对锰铁结核中76种化学元素含量进行测定(表1)。
Since the discovery of ferromanganese nodules on the ocean floor, interest has been observed in its chemical composition, but only detailed geochemical studies have been carried out in the last two or three decades. This article intends to clarify three aspects of the problem: chemical composition, age and cause. To this end, we have incorporated the information published over the past decade and our own information, including the latest results of the content of 20 chemical elements (platinum group elements, silver, gold, bismuth, etc.) in tuberculosis. 1 Chemical composition of ferromanganese nodules The content of 76 chemical elements in ferromanganese nodules has been determined (Table 1).