Abstract Understanding the spatial controls on mineral deposits is crucial in mineral exploration targeting. This paper uses a combination of spatial data analysis techniques, such as the distance distribution method, Fry, nearest neighbor index, Ripley’s K-function multi-distance, fractal, and kernel density analysis, to better define controls on the distribution of gold deposits in the Swayze greenstone belt, Ontario, Canada. According to results obtained with the distance distribution method, D2 structures were critical in controlling the spatial distribution of the gold mineralization, with 97% of the gold deposits occurring within 7 km of these structures (and 65% within 4 km). Fry analysis confirmed this spatial relationship with a close agreement between the orientations of the D2 structures and gold deposit alignment. The outcome of Ripley’s K-function cluster analysis suggests that gold deposits occur within 4 km distances of other gold deposits. These findings are consistent with the results from the fractal analysis, showing that gold deposit distribution is bifractal and that different geological features occurred at local ( 8 km) scales. We conclude that higher-order D2 structures and lower-order faults connected to the D2 structures acted as pathways to focus gold-bearing hydrothermal fluids, thus leading to the observed concentration and distribution of gold deposits at the regional to local scales.

中文翻译：

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使用多尺度空间数据分析方法检查对加拿大安大略省 Swayze 绿岩带金矿分布的控制

摘要 了解矿床的空间控制对于矿产勘探目标至关重要。本文结合空间数据分析技术，如距离分布法、Fry、最近邻指数、Ripley's K-function 多距离、分形和核密度分析，更好地定义对金矿床分布的控制。加拿大安大略省 Swayze 绿岩带。根据距离分布法得到的结果，D2构造对于控制金矿化的空间分布至关重要，97%的金矿床发生在这些构造的7km以内（4km以内为65%）。Fry 分析证实了这种空间关系，D2 结构的方向与金矿床排列之间具有密切的一致性。Ripley 的 K 函数聚类分析的结果表明，金矿床距其他金矿床 4 公里以内。这些发现与分形分析的结果一致，表明金矿床呈双分形分布，并且在局部（8 公里）尺度上出现了不同的地质特征。我们得出的结论是，高阶 D2 结构和与 D2 结构相连的低阶断层作为聚集含金热液流体的通道，从而导致在区域到局部尺度上观察到的金矿床集中和分布。表明金矿床分布是双分形的，并且在局部（8 公里）尺度上出现了不同的地质特征。我们得出的结论是，高阶 D2 结构和与 D2 结构相连的低阶断层作为聚集含金热液流体的通道，从而导致在区域到局部尺度上观察到的金矿床集中和分布。表明金矿床分布是双分形的，并且在局部（8 公里）尺度上出现了不同的地质特征。我们得出的结论是，高阶 D2 结构和与 D2 结构相连的低阶断层作为聚集含金热液流体的通道，从而导致在区域到局部尺度上观察到的金矿床集中和分布。