摘要
根据王世称教授综合信息矿产预测理论与方法,首次在陕南地区开展固体矿产1∶50万大型、超大型矿床定位、定量预测。以矿床密集区为模型单元,异常密集区为预测单元,在GIS平台上开展综合信息预测,采用数理化理论Ⅰ、Ⅲ、Ⅳ和特征分析方法,总结和建立了大型金铜矿床、铅锌银矿床、汞锑矿床综合信息找矿模型,其控矿因素具共生和伴生的特点,可作为同一成矿母体、地球化学金属省和矿产资源体。提出寻找大型、超大型矿床的技术路线和工作方法,及在前寒武纪出露基底和隐伏基底边缘、中酸性岩体、基性、超基性岩体边缘和顶部、双重结构控制的古生代盖层泥盆系、志留系、寒武系地层,重磁环线构造交汇处等寻找大型、超大型矿床的新思路,这对加速陕南矿产资源评价,具有十分重要的意义。
Guided by the method and theory of integrated information about mineral resources proposed by Prof. Wang Shicheng, orientation and quantitative prognostication of large- and super large scale solid mineral deposits at a scale of 1∶500,000 has been commenced in the southern Shaanxi province. Taking assembled areas of ore deposits as model units and clustered anomalies as prognostic units, a comprehensive confidential prognostication has commenced on the platform of GIS. By means of mathematics-physics-chemistry theory of I, III and IV, and the method of characteristic analysis, prospecting models of large-scale gold-copper deposits, lead-zinc-silver deposits and mercury-antimony deposits from comprehensive information have been concluded and established, showing that the ore-control factors have the features of a same original source, geochemical metallic province and same mineral resources bodies. In this paper, some recommendations have been offered at technical approaches and methods for prospecting large-and super large-scale deposits, suggesting a new approach for prospecting large and super large scale of mineral deposits in the cropped basement, periphery of buried basement, the margin and the top of intermediate-acidic rocks, basic rocks and ultrabasic rock bodies of the Precambrian, the structural conjunctions of gravity-magnetic circles in the Devonian, Silurian and Cambrian systems. It would be significant and speed up to assessment of the mineral resources in southern Shaanxi province.
出处
《陕西地质》
2005年第1期11-22,共12页
Geology of Shaanxi
基金
中国地质调查局 (中国西部固体矿产大型
超大型矿床综合信息预测 )
项目编号 2 0 0 0 10 2 0 2 2 10 0 3
关键词
固体矿产
大型、超大型矿床
综合信息预测
陕南地区
solid minerals
large and super large scale deposit
prognostication from comprehensive information
the southern Shaanxi province
