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在Mibladen地区含镁的里阿斯统中期滨海相岩系中赋存有层状及斜切层理的铅-钡矿床,它们在时间及空间上均与多期溶解作用有关,其溶解过程受到阿特拉斯裂谷、边缘褶皱动力演化的控制.第一阶段,同生成岩期岩溶型富集作用发生于潮上叠层面间,金属富集受到唯一的北东70°-80°方向的张性断裂的控制.几乎在同期,走向为北东45°的另一组张性断裂使先期形成的富矿体发生崩塌.另一组北东165°-170°走向的断裂与上述构造活动无直接联系,该断裂沿岩溶最大坡度方向排泄,造成局部地段金属组分布在溶解-压实成因的似层状角砾岩体中重新分布.在晚期,岩溶角砾岩及含矿晶洞的形成均与走向为30°和140°的一组共轭构造有关,并由此引起金属发生部分活化迁移,并较晚些时候形成金属共生组合.这种现象与阿特拉斯地区多次挤压、变形作用有关.从宏观上看,矿床仅仅分布于一种倾斜地段(北东70°)与一种张裂方向(X轴的方向大致为125°)相交的地区而沿着上木卢亚地垒呈35°-45°方向展布,这相当于大西洋张裂在克拉通内部“地区性”的相似构造.
The stratiform and bevelled lead-barium deposits exist in the mid-Mias-rias lithostratigraphic lithofacies in the Mibladen region, and they are both spatially and temporally related to multi-stage dissolution and are subject to dissolution processes Atlasian rift and marginal fold dynamic evolution control.In the first stage, the karstification enrichment occurred in the synsedimentary layer in the synsenetic stage, and the metal enrichment was affected by the only direction of 70 ° -80 ° northeast In the same period, another set of tensile faults that headed for 45 ° N NE collapsed the pre-formed ore-rich orebodies, and the other group of 165 ° -170 ° NW faults ruptured with the above tectonic activity There is no direct contact between the fault and the fault and the fault is expelled along the direction of the maximum karst slope, resulting in the redistribution of the metal component in the local section in the stratiform breccia body of dissolution-compaction. In late stage, the karst breccia and the ore- Formation is related to a set of conjugate structures that are oriented at 30 ° and 140 ° and cause a partial activation and migration of the metal and later formation of a symbiotic combination of metals This phenomenon is associated with multiple squeeze in the Atlas region Pressure, deformation related to the macroscopic point of view, the deposit only points Spread in the direction of 35 ° -45 ° along the Upper Mukilhai base in a region where the sloped (NE 70 °) intersects with a fracturing direction (X-axis approximately 125 °) Equivalent to the similar structure of the Atlantic Ocean in the Cratin “regional ”.