Distribution characteristics of elemental grade and mineralization grade of Jiama copper deposit

Distribution characteristics of elemental grade and mineralization grade of Jiama copper deposit
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甲玛铜矿床元素品位及矿化品位分布特征

DOI:
10.1088/1755-1315/768/1/012034
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发表时间:
2021
期刊:
IOP Conference Series: Earth and Environmental Science
影响因子:
--
通讯作者:
Xiangjian Zeng
Xiangjian Zeng
中科院分区:
其他
文献类型:
--
作者:
Hui Liu;Li Wan;Xiangjian Zeng

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抽象的。钻孔中成矿元素品位的变化具有很强的随机性和非线性。成矿元素品位分布的定量分析是揭示成矿富集程度的重要途径之一。以佳马斑岩铜矿床为例,利用孔隙度方法分析了32线和36线铜品位系列的分布结构,探讨了孔隙度指数与成矿强度的关系。结果表明,不同钻孔中铜元素的空隙指数和参数存在差异,矿化强度越高,空位指数越小,曲线越光滑,表明高品位的铜元素更富集、更均匀。裂隙指数的大小和裂隙曲线的变化趋势对矿化品位有一定的指示作用。
Abstract. The change of metallogenic element grade in borehole has strong randomness and nonlinearity. Quantitative analysis of metallogenic element grade distribution is one of the important ways to reveal the degree of mineralization enrichment. Taking Jiama porphyry copper deposit as an example, the distribution structure of Cu grade series in exploration lines 32 and 36 is analyzed by lacunarity method, and this paper discusses the relationship between lacunarity index and mineralization intensity. It is found that both the lacunarity index and parameters of Cu element in different boreholes exist distinction, the higher the mineralization intensity, the smaller the lacunarity index and the smoother the curve, pointing that the high-grade Cu element is more enriched and uniform. The size of lacunarity index and the variation trend of lacunarity curve have a certain indicative effect on mineralization grade.
DOI: 10.1086/629654
发表时间: 1994
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