论文部分内容阅读
作者定义元素富集系数（Ｋ）为结核样品中元素的含量与太平洋多金属结核的平均值的比值，并按Ｋ值大小将元素的富集程度分成六级。本文研究表明：多金属结核壳层中元素的富集系数是波动的；Ｋ＿（Ｍｎ）与Ｋ＿（Ｆｅ）呈负相关性，而与Ｋ＿（Ｎｉ）、Ｋ＿（ｃｕ）呈正相关性；按Ｍｎ／Ｆｅ和生长速率，多金属结核ＣＣＡ３３、ＣＣＢ２９、ＣＣＣ５０、ＣＣＣ１４的壳层，分别划分为８、７、１４、２４个微层；微层中元素富集程度与成因相关，结核生长间断面中，锰呈弱亏损至极亏损，铁弱亏损至较富集，铜弱亏损至较亏损，镍较亏损至极亏损，而由强缺氧性成岩作用为主所形成的微层中，锰、镍呈较富集至极富集，铜极富集，而铁极亏损。
The authors define the element enrichment factor (K) as the ratio of the elemental content of tuberculosis samples to the average value of Pacific polymetallic nodules and divide the elemental enrichment into six levels by K values. The results show that the enrichment coefficients of elements in the polymetallic nodules are fluctuating; K_ (Mn) is negatively correlated with K_ (Fe), but positively correlated with K_ (Ni) and K_ / Fe and growth rate. The shell layers of polymetallic nodules CCA33, CCB29, CCC50 and CCC14 were divided into 8, 7, 14 and 24 microlayers respectively. The enrichment degree of microelements was related to the genesis, , Manganese showed weak losses to extremely loss, weak iron losses to enrichment, weak copper losses to losses, and nickel to losses more than losses. However, in the micro-layers formed mainly by strong anoxic diagenesis, manganese and nickel were It is richer and more concentrated than others.