Study On Ore-controlling Structures Analysis And Fractal Dynamics Of Xincheng Gold Deposit In Jiaodong

Jiaodong is an important gold producing of China, Xincheng gold deposit is well known for "Jiaojia type" broken with altered rock type of the Jiaojia gold ore field, Since been found in Xincheng Gold deposit, the predecessors had done a lot of research work, and on this basis, they continuously discovered new mineral reserves, then it brought considerable economic benefits for the deposit. In this paper, a large number of collecting and collating data on the basis of previous, relying on the national resources crisis mines in new technologies and new methods of resource exploration projects-Linglong gold deposit and Xincheng gold deposit deep Orefield structure prediction research and demonstration funding and technical guidance. On the Xincheng gold deposit conducted repeatedly field trips, by the middle of the new underground rock an ore samples tested for system analysis, count of the occurrence for the joints, use the relevant software and mathematical methods to deal with the mine existing data. Combine with the classic method of mineral deposit geology, the research method of metallogenic dynamics and the additional tectonically-induced pressure measurement of metallogenic depth. Get the data of diagenetic metallogenic depth and the regular pattern of mineralization structure dynamics. Received the following consequence:1.The structure system of Xincheng gold deposit controlling multiple levels of mineralization. In the unified regional stress field, it showed a different scale structures are characteristics, however, the different levels of structure, the different combination of structural styles.Through the observation of tunnel and field structure systematic, studied the kinematics of the fracture zones. Use of joint analysis and conjugate joints stress field.Take the joint an fractured ore bodies axis preferred orientations be clearly,and restorated of the tectonic stress field occurrence.Through the micro-structure study on combination of rock deformation and deformation temperature and pressure changes. Use the charges for rock group's platform of tools to construct of the tectonic component of stress and strain model. Using the microscopic dislocation density method and measured dynamic recrystalliztion grains method calculation of the stress value of ancient:86-106MP and 66-135MPa.2.Take on geochemistry and petrogeochemistry analysis of the rock samples. As well as composition of fluid inclusions, investigate the components of migration and the correlation between ore-firming elements on the ore-forming hydrothermal process. Discuss Xincheng gold deposit's late line of hydrothermal alteration of the time by the isotopic dating, the value is 85.7±0.84 Ma. Base on the ancient fluid inclusion measured ancient pressure and dislocation density measured ancient differential stress, use the research method which proposed by Lv Guxian research associate of metallogenic dynamics and the additional tectonically-induced pressure measurement of metallogenic depth method. The value of Xincheng gold deposit's metallogenic depth is-1781.29m;3.Through studying of the different scales fractal of ore-controlling structure at different levels and the value of the gold grade from the different middle sections and deep drillings, obtained the system which lead of ore, control of ore, deposit of ore by the structural and elements of the activation is a system which has a self-similar fractal structure, the structure mineralization system with nonlinear fractal dynamics features.