...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal Of The South African Institute Of Mining & Metallurgy >A test of the appropriateness of the LUC technique in high-nugget Birimian-style gold deposits
【24h】

A test of the appropriateness of the LUC technique in high-nugget Birimian-style gold deposits

机译：高掘金二导人型黄金矿床中LUC技术的适当性试验

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The localized uniform conditioning (LUC) technique was proposed by Marat Abzalov in 2006. The technique converts conventional uniform conditioning (UC) grade-tonnage curves into single grade values attached to each smallest mining unit (SMU). This is achieved by ranking the SMUs within a panel in increasing order of their grade (based on the direct kriging of SMUs). This ranking is then used to localize the conventional UC grade-tonnage curves for each panel by dividing them into classes and computing their mean grades, which are assigned to the SMUs. The quality of this localization process will depend heavily on the validity of the grade patterns predicted by the direct kriging of the SMUs. Abzalov noted that where the distribution of data available for the direct kriging of the SMU is characterized by strong short-range variability, the advantages of using the LUC approach may be more limited. Consequently, a study was undertaken to determine how valid the predicted grade patterns of a typical Birimian-style gold deposit (with high nugget effect and strong short-range variability) might be expected to be. This was determined by comparing the direct SMU kriging ranking (based on sparse data) with the grade control model ranking (based on close-spaced data and the best available estimate of the deposit). The results showed a satisfactory correlation between these rankings and it was concluded that, although the grade patterns predicted by the direct kriging of the SMUs may be less meaningful for deposits exhibiting strong short-range continuity, there is nevertheless a convincing relationship with the actual (or best available) rankings. Therefore, the LUC technique is still considered to be useful for this style of deposit.
机译：局部均匀调节（LUC）由Marat Abzalov于2006年提出。该技术将常规均匀调理（UC）级吨位曲线转换为连接到每个最小采矿单元（SMU）的单级值。这是通过在升级阶段的阶数（基于SMUS的直接Kriging）的面板内进行排序来实现。然后，使用该排名来通过将它们划分为类并计算分配给SMUS的均值来定位每个面板的传统UC等级 - 吨位曲线。该本地化过程的质量将大量取决于SMUS直接克里格预测的等级模式的有效性。 Abzalov指出，在SMU的直接Kriging的可用数据的分布的情况下，通过强大的短范围可变性，使用LUC方法的优点可能会更有限。因此，采取了一项研究，以确定典型的双米型金矿床（具有高核实效应和强额度变异性）的预测等级模式有何有效。这是通过将直接SMU Kriging排名（基于稀疏数据）与等级控制模型排名进行比较来确定这一点（基于封闭式数据和押金的最佳可用估计）来确定。结果表明这些排名之间的令人满意的相关性，并且得出结论，尽管通过缺口的直接克里格预测的级别的等级模式对于表现出强烈的短程连续性的沉积物可能不太有意义，但是与实际的沉积物有一个令人信服的关系（或最佳可用）排名。因此，LUC技术仍被认为对这种押金风格有用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号