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本文对太平洋ＣＣ区（Ｃｌａｒｉｏｎ－ＣｈｐｐｅｔｏｎＺｏｎｅ）多金属结核富集区的结核丰度、品位（Ｍｎ、Ｃｕ、Ｃｏ、Ｎｉ）进行了详细的地质统计学分析、获得了较好的实验变差图。分析结果表明光滑型结核富集区的丰度变程为５０～６０ｋｍ，结核水平分布连续性好，丰度稳定而变化小，结核中Ｍｎ、Ｃｕ、Ｃｏ、Ｎｉ四种金属元素变程为８０～１００ｋｍ，各向异性和空穴效应现象不明显；粗糙型结核富集区丰度变程为４０～５０ｋｍ，结核中Ｃｏ、Ｎｉ、Ｍｎ变差图拟合较困难，它们的变程约１００ｋｍ，大多数变差图形表现出有漂移、穴穴效应和各向异性现象，结合其它实际调查资料分析，影响变差函数稳健性的主要因素是粗糙型结核贫富分布不均且变化大。克立格法和算术平均法两种方法计算得出的结核资源量误差一般为１％～２％。最大误差不超过７％，这与以往的分析结果基本一致。研究结果表明，结核丰度采样间距为２８ｋｍ×２８ｋｍ，结核资源估计误差：光滑型结核区为２９．４５％的资源估计误差下降到１４．５９％，粗糙型结核区为３６．０７％；采样间距缩小到１３ｋｍ×１３ｋｍ，光滑型结核区的资源估计误差下降到１４．５９％，而粗造型结核区资源估计误差仍有２３．０１％。
In this paper, the detailed geostatistical analysis of tuberculosis abundance, grade (Mn, Cu, Co, Ni) in the Clarion-ChppetonZone polymetallic nodule enrichment area was carried out and a good experimental variation map was obtained. The results show that the enrichment range of smooth nodule enrichment zone is 50 ~ 60km, the distribution of tuberculous level is good, the abundance is stable and the change is small, and the change of the four metal elements of Mn, Cu, Co and Ni in tuberculosis is 80 ~ 100km, the phenomenon of anisotropy and hole effect is not obvious. The abundance range of rough nodule enrichment zone is 40 ~ 50km, and the curves of variation of Co, Ni and Mn in tuberculosis are more difficult to fit. Their range of variation is about 100km , Most of the variograms show drift, acupressure and anisotropy. Combined with other actual survey data, the main factor that affects the robustness of the variogram is the uneven distribution of coarse-rich and coarse-grained tuberculosis. Kriging and arithmetic mean method of two methods to calculate the amount of tuberculosis error is generally 1% to 2%. The maximum error does not exceed 7%, which is consistent with the previous analysis. The results showed that the sampling interval of tuberculosis abundance was 28km × 28km. The estimation error of tuberculosis resources was as follows: the estimated error of the resource of smooth tuberculococus region was 29.45%, down to 14.59% and that of rough tuberculosis region was 36.07% The distance between the two regions narrowed to 13km × 13km, the estimated error of the resource of smooth nodule decreased to 14.59%, and the estimated error of resource of coarse nodule reached 23.01%.