Construction of geological block model

Using Datamine software to build a block model of geological bodies includes two steps: first, establishing a prototype data table of the block model, and then generating block models of various geological bodies.

Three-dimensional block modeling of various geological bodies in Dingjiashan lead-zinc deposit is carried out. In this study, a unified prototype data table-the overall three-dimensional space of Dingjiashan lead-zinc deposit is used to define the model space. See Table 4. 18 for specific parameter values. In this way, the block unit data of all geological bodies have a unified coordinate system in the whole three-dimensional space (that is, the same coordinate origin, block unit center coordinates and unit size).

Table 4. 18 Three-dimensional space parameter values of Dingjiashan lead-zinc deposit

Based on the generated prototype table data and three-dimensional wireframe model data of various geological bodies, three-dimensional block models of various geological bodies can be generated by using Datamine software, and block models of six strata of Dingjiashan lead-zinc deposit can be directly established according to the unit blocks of10m×10m respectively. After some data processing, the ore body is also based on 10m× 65438. Figure 4.23 describes the whole ore body block model of Dingjiashan lead-zinc deposit, and Figures 4.24 and 4.25 describe the ore body block models of Dingjiashan and Guandou mining areas respectively.

Fig. 4.23 Effect diagram of ore body block model of Dingjiashan lead-zinc deposit (whole)

Figure 4.24 Effect diagram of ore body block model in Dingjiashan mining area (partial)

Figure 4.25 Effect diagram of ore body block model in Guandou mining area (partial)