【摘要】 分形理论的引入极大地促进了现代定量地学的发展。在成矿预测的科研和实践中,人们曾先后建立了多种分形预测模型,并取得较好的效果。作者另辟蹊径,通过引入新的分形变量幂律度(power-law),建立地质-分形联合预测模型,在理论上进行了初步探索;并以云南省宁蒗—永胜地区铜矿成矿预测为例,圈定A级找矿靶区1处、C级找矿靶区2处,已知矿点的误判率较单一地质预测模型明显降低,体现了幂律度这一分形变量在成矿预测中的优越性。更多还原

【Abstract】 Fractal theory has greatly promoted the development of modern quantitative geosciences. In the field of theory and practice of metallogenic prognosis, researchers have established fractal prognosis models and achieve successful outcomes. This paper discusses this model by another way. The authors introduce a new fractal parameter powerlaw, set a geofractal prognosis model and then, illustrate some advantages of the new parameter with copper deposits in the NinglangYongsheng region in southwestern China. In this paper, one place in Grade A mineral prospecting target area and two places in Grade C mineral prospecting target areas are delineated. The predicting errors of known deposit points using geofractal prognosis model are much less than using geological prognosis model. Powerlaw will be a useful parameter in metallogenic prediction. This research is of theoretic and practical significance.更多还原