Wernerians thought strata were deposits from shrinking seas, but James Hutton proposed a self-maintaining infinite cycle, anticipating uniformitarianism.
The strata strike NE,and its rock association are consisted of pyroclastic sedimentary rock,micrite and pyroclastic rocks,and containts brachiopoda,coral,bryozoan.
The cells above the stratum basale were polygonal cells with central nucleus and cytoplasm filled with rough endoplasmic reticulum, ribosome, golgi apparatus and tonofibril.
Based on the geochemical data of the long regional profile in western Jiangxi and using quadratic arithmetic average and correlation analysis,orebearing features of strata are discussed in this paper.