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热水沉积成矿与正常沉积矿床在矿质来源和成矿机制上有很大的差异 ,反映在岩矿石结构构造上也有明显的差异性。虽然都有特征的沉积韵律条带、纹层构造 ,但由于热水沉积成矿矿质浓度大而形成了稠密而富集的组构 ,二者可区分。通过对西成铅锌矿化集中区两类热水沉积矿床的岩矿石组构进行论证 ,认为他们不但以上述特征区别于正常沉积矿床 ,而且各自也有差异 ,厂坝式矿床在组构上保留了原始沉积富而大的特点 ,虽有矿物粒度在变质作用中重结晶加粗的富集过程 ,但没有完全破坏原始的热水沉积构造。毕家山式矿床也具有原始沉积特点 ,但在改造过程中有热液叠加交代充填的现象 ,而原始沉积特点则又可区别于热液矿床 ,硅质岩的结构构造就是明显的证据。
The hydrothermal sedimentary mineralization and the normal sedimentary deposit are very different in mineral source and metallogenic mechanism, which is also reflected in the structural differences of rock ores. Although all have characteristic sedimentary rhythmic bands and striated structures, they are distinguishable due to the large concentration of hydrothermal sedimentary mineral and the formation of a dense and enriched structure. Through the demonstration of the rock ore structure of two types of hydrothermal sedimentary deposits in the Xicheng lead-zinc mineralization area, they are not only different from the normal sedimentary deposits but also have their own differences, The original sedimentary rich features, although the grain size in the metamorphism of recrystallization thick enrichment process, but did not completely destroy the original hot water sedimentary structures. The Bijiashan deposit is also characterized by primitive sedimentation. However, during the process of alteration, hydrothermal superposition and replacement are filled in. The original sedimentary features are distinguished from the hydrothermal deposits. The structural structure of the cherts is obvious evidence.