选取云南昭通大关悦乐矿区内一个具有代表性的剖面进行微量元素地球化学研究，揭示其在地史上奥陶-志留统这段时期的沉积地球化学特征及古环境变迁。从宏观上进行地层、岩性、构造、矿物组合等方面的研究；从微观上开展了赋矿地层微量元素地球化学特征的研究；最后对沉积环境进行分析。%In order to reveal the change of the ancient sedimentary geochemistry of the study area in this history period,we chose one representative sections of Yuele Ore in Daguan,Yunnan to research in two aspects of the macro and the micro. The macro aspects of systemic research on the production from stratum,lithology,structure and mineral composition,on this basis,the micro research of trace element geochemistry of ore bearing strata were both carried out,and the sedimentary environment was analyzed.
展开▼
