前人基于Fe-Zn二元体系建立了闪锌矿成矿过程的反应-扩散、沉淀-结晶-成核等动力学过程。我们近年对其进行了更深入研究，原位测量了手标本切面307个点位23种与成矿有关的元素含量，经由构造的ALCa变换研究发现钙在闪锌矿成矿过程中起着分形反馈作用，这一发现与前期定量模拟的分形振荡及分岔现象相吻合，为建立闪锌矿成矿过程的Fe-Ca-Zn三元耦合系统提供了理论依据，经研究我们猜想H+耗尽时溶解的碳酸盐可能沉淀，系统达到临界状态，出现临界性。故而本项目拟采用复杂性科学研究方法，设计地球化学实验动态模拟闪锌矿的成矿过程，精细观测成矿元素的动态特征，在此基础上，建立由钙参加的闪锌矿成矿的地球化学过程、动力学过程、成核过程，由此构筑三元耦合体系，进而用CNN及DLA建模，验证以上科学猜想，确立三元系统的耦合机制，揭示碳酸钙的溶解和重结晶对容矿空间的限定作用。本研究具有较强的挑战性，可望取得原创性成果。

The dynamic equations of reaction-diffusion, precipitation -crystallization-nucleation processes for the forming process of sphalerite were built in former researches based on Fe-Zn two components system. In recent several years, we've been carrying forward this work. The contents of 23 elements related to the forming processes of sphalerite on each of 307 points in the intersection of a hand specimen were measured in situ. Through the transformation ALCa we constructed, we found that Ca plays a fractal-feedback role in the forming process of sphalerite. This discovery is in agreement with those phenomena, such as fractal oscillations and bifurcations which we got in former quantitative simulations, and it provides us with a theoretical support for the founding of the Fe-Ca-Zn three conponents coupling system for the forming processes of sphalerite. Through theoretical analysis we guess that the dissoluted calcium carbonate in the solution may deposite when H+ in the solution is exhausted. At this point, the system reaches critical, and criticality may appear. Therefore, in this project, we plan to take the advantage of complexity study method to explore the processses of the forming of sphalerite. Designing geochemical experiments to simulate the processes dynamically, to measure the changing of the contents of the components intensively, based on which we will built the Ca involved geochemical processes, dynamical processes and nucleation processes.So that, we'll realise the construction of the three conponents coupling system. Furthermore, by the modelling of CNN and DLA we are to justify our scientific suggestions, find the coupling role of the three components system. At Last, we will try to explore the limitation of the dissolution and recrystallization of calcium carbonate to the host space of the ore-forming processes. Although this project is of high challenging, we are sure to achieve original results throuth our hard work in this area.