论文部分内容阅读
本文阐述了赣南纬向构造体系与新华夏构造体系应力场的主要特征,初步探讨了应力场强弱与稀土矿分布的关系,着重讨论了七○一花岗岩离子吸附型重稀土矿床的构造动力成矿作用。指出花岗岩单矿物型稀土矿主要分布于中部东西向构造带应力相对弱区,离子吸附型矿则分布于南部的应力强区;铈族轻稀土主要分布于东部新华夏系应力场强区,而钇族重稀土则分布于西部的应力场相对弱区;花岗岩的原生矿化作用,物质转化及矿化富集作用和表生阶段的次生富集等,均受构造动力的制约。
This paper describes the main features of the stress field in the latitudinal and southern China latitudinal tectonism and the Neo-Huaxia tectonic system, discusses the relationship between the stress field strength and the distribution of rare earth ores, and emphatically discusses the tectonic forces Mineralization. It is pointed out that the granite single-mineral rare earth ore mainly distributes in the stress-weak zone in the east-west tectonic belt of central China while the ion-adsorbed ore distributes in the southern strong stress zone. The cerium-bearing light rare earths are mainly distributed in the stress field in the eastern Xinhuaxia system, Yttrium heavy rare earths are distributed in the relatively weak stress field of western China. The primary mineralization, material conversion, mineralization and enrichment of granite and the secondary enrichment in superficial stage are controlled by tectonic forces.