论文部分内容阅读
在内蒙草原覆盖区迪彦钦阿木Mo-Ag矿床长度为106.5m黄土覆盖层垂直岩心上等间距顺序取样106个,用Niton XL3t X-荧光仪测得每个样本的33个元素的含量.在正态性检验的基础上,用Kendallτ相关系数分析了元素含量与深度的相关性,得出黄土覆盖层中Mo、S、W、Te、Fe、Cu、Ni、Mn、Sb、Rb、Cs、Sn、Zn、Ti、V、Pb、Th、As这18种元素含量与离开矿源的距离具有显著相关性;用HP滤波法分离出这18种元素含量空间序列的长期趋势,并用变量聚类分析法对长期趋势进行了分类;用因子分析法得到了迪彦钦阿木矿床Mo-W成矿因子和Pb-Zn成矿因子,并模拟得到Mo-W成矿因子的指数分布模式.本文的研究思路与结论可为覆盖区表层地球化学异常对矿产预测的指示作用研究提供借鉴.
A total of 106 samples were sampled at regular intervals along the vertical core of 106.5 m loess cover in the Qinanmu-Mo-Ag deposit, Inner Mongolia grassland. The content of 33 elements in each sample was measured with a Niton XL3t X-ray fluorescence spectrometer On the basis of the normality test, the correlation between element content and depth was analyzed by using the Kendallτ correlation coefficient, and the relationship between element content and depth was obtained. The results showed that Mo, S, W, Te, Fe, Cu, Ni, Mn, Sb, The 18 elements such as Sn, Zn, Ti, V, Pb, Th and As have a significant correlation with the distance from the mineral source. The long-term trend of these 18 elements was separated by HP filter, Method was used to classify the long-term trends. The Mo-W mineralization factor and Pb-Zn metallogenic factor of the Qinyanmumu deposit in Diyan were obtained by factor analysis and the exponential distribution model of Mo-W metallogenic factor was simulated. The ideas and conclusions can provide reference for the study on the indication of mineral prediction by the surface geochemical anomalies in the coverage area.