Productive regions in the Crystalline Basement Aquifer System (CBAS) in Paraná state, Brazil, were identified qualitatively and quantitatively through spatial correlation of wells and geological conditions such as lineaments, hydrography, aeromagnetometry and lithology. Different methods applied in Precambrian metamorphic and igneous aquifers around the world and some Brazilian states were integrated and applied in CBAS with the aim of understanding the best scale and approach to productivity. The median productivity of the 224 wells analyzed is 0.29 m³/h/m. Under a multi-scale regional assessment, the results showed that the best condition is associated with the distance of 350 m from the lineaments (1:100,000), especially those with directions N40W, N10E and N70E. Considering the hydrolithological units, gneisses are the most productive, especially where lineaments coincide with regional structures such as shear zones, foliations and Cenozoic tectonic reactivations. Quartzites, granitoids, schists, phyllites, and rhyolites were also favorable when close to important rivers and not necessarily coinciding with regional lineaments, the high density of lineaments, or with vertical fractures. The areas of intersection of the lineaments and the weathering mantle did not serve as a discriminatory parameter. As the median depths of the water wells reach 90 m from the surface, the extraction of oriented magnetic gradients referred to magnetic sources down to 800 m depth, thus corroborating surface mapped lineaments and new nonoutcroppable structures. Considering the complexity of the environment and the global use of groundwater from fractured aquifers, this work contributed by discriminating geospatial parameters to decrease the exploratory risk in CBAS.

通过井的空间相关性和线性条件，线性，水文，航空磁法和岩性等地质条件，定性和定量地确定了巴西巴拉那州结晶地下含水层系统（CBAS）的生产区域。为了了解最佳的规模和生产率方法，将全球和巴西一些州的前寒武纪变质和火成岩含水层中使用的不同方法进行了整合并应用到CBAS中。分析的224口井的中位数生产率为0.29 m ³/小时/米 在多尺度区域评估中，结果表明，最佳条件与距直线350 m（1：100,000）的距离有关，尤其是方向为N40W，N10E和N70E的直线。考虑到水力岩性单元，片麻岩的生产力最高，尤其是在线型与诸如剪切带，页岩和新生代构造活化之类的区域结构相吻合的地方。当靠近重要河流且不一定与区域构造，高密度构造或垂直裂缝相吻合时，石英岩，花岗岩，片岩，片岩和流纹岩也是有利的。纹线与风化地幔的相交区域不作为判别参数。当水井的中位深度距离地面90 m时，定向磁梯度的提取指的是低至800 m深度的磁源，从而证实了表面映射的谱线和新的不可露构造。考虑到环境的复杂性和裂缝性含水层对地下水的全球使用，这项工作通过区分地理空间参数以降低CBAS的勘探风险做出了贡献。