论文部分内容阅读
目前在数学地质中,趋势面分析已广泛应用。趋势面分析的实质,就是以一定的数学函数来拟合(或逼近)地质体某种特征的变化趋势,从而将地质特征的观察值,分离为趋势分量与剩余分量。趋势分量反映大范围因素控制的区域变化,而局部因素和随机因素控制的剩余分量,则反映局部范围的特征,(或大范围的残余特征)。这样就为分析地质构造运动过程提供了信息。本文拟通过岩层标高的趋势分析来探讨海南石碌铁矿的地质构造演化,并为研究铁矿体的分布提供资料。在934队和海南铁矿的支持下,我们从石碌矿区占孔资料中收集了石碌群第六层中较稳定的顶部白云岩分层的顶、底板(注:1.白天岩顶板就是第六层的顶板,也是第七层与第六层的接触面。2.下文简称顶、底板)标高样各56个,进行1-5阶趋势计算后用内插法作1-5阶趋势和剩余等值线图进行地质解释。取样位置见顶、底板等高线图(图一、图二)。
Currently in mathematical geology, trend surface analysis has been widely used. The essence of the trend surface analysis is to fit (or approximate) the trend of a certain feature of the geological body with a certain mathematical function so as to separate the observed value of the geological feature into the trend component and the residual component. The trend component reflects the regional change controlled by the large-scale factor, while the residual component controlled by the local factor and the random factor reflects the characteristics of the local range (or a large range of residual features). This provides information for analyzing the tectonic movement process. This paper intends to explore the geotectonic evolution of Shilu Iron Mine in Hainan through the trend analysis of rock level elevation and provide information for studying the distribution of iron ore bodies. With the support of the 934 team and the Hainan Iron Mine, we collected the top and bottom strata of the more stable top dolomite strata in the sixth floor of the Shilu Group from the account of the pores in Shilu Mine (Note: 1. The roof of the daytime rock is the sixth Layer roof, but also the seventh layer and the sixth layer of the contact surface .2 hereinafter referred to as the top, floor) the elevation of the 56, after the 1-5 order trend calculation using the interpolation method for 1-5 order trend and surplus Contour map for geological interpretation. See the top position sampling, floor contour map (Figure 1, Figure II).