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一、勘探工程位置矿層質量厚度比較及採样平面圖:这一种圖紙是利用勘探工程分佈圖(1:2000,不繪地形等高綫,並將矿層露头部分表示在圖上)为底圖而編制的。其作法是在每一鑽孔位置画一小圓,圓內分为若干扇形,代表这一工程內曾經採取的不同性質的試样。如为槽探或井探則用方塊內划分小菱形表示,並將各槽探、坑探及鑽探工程中試样偏号、矿層厚度、品位分別制成小柱狀圖繪于其旁(如圖1)。从这張圖上可以反映出:①每个工程位置的矿層厚度、品级;②全区矿層質量的变化情况;③各品級矿
First, the location of exploration engineering Comparison of the thickness of the seam quality and sampling plans: This kind of drawing is the use of exploration project distribution (1: 2000, not terrain contour, and the outcrop part of the mine is shown in the figure) for the end Figure compiled. The practice is to draw a small circle at each drilling location. The circle is divided into a number of sectors to represent the different types of specimens that have been taken in this project. For example, for tank exploration or well exploration, the small diamonds are used to divide the blocks into small diamonds, and the sample histograms, pit thickness and grade of each trench exploration, pit exploration and drilling project are respectively made into small bar charts, Figure 1). From this map can reflect: ① the thickness of each project site, grade; ② the quality of the entire area of the ore changes; ③ the grade of ore