康滇古陆东缘磷块岩型铀矿找矿前景分析

摘要：“康滇古陆东缘”北起四川峨眉，南至云南玉溪，面积近30000km2。在大地构造上属杨子陆块西南缘康滇地块东侧。20世纪50年代至20世纪末，在该地轴震旦系上统与寒武下统层位中发现了磷块岩型铀矿（化）点7个，放射性异常（点）带100多个。这类矿化是川滇地区轴资源重要找矿信息，根据该区内磷块岩型铀矿化的成矿地质条件、矿化特征和控矿因素，分析认为磷块岩型铀矿化找矿前景良好，四川会东大黑山地区和云南昆明鸣矣河地区，是下一步铀矿勘查的首选靶区。

Prospecting Potential for Phosphorite-Type Uranium Deposit on the Eastern Margin of the Kangdian Old Continent

Shale gas reservoir is characterized by low porosity and low permeability, long mine life, long production cycle, large changes in recovery and lower recovery ratio than conventional natural gas. Advanced mining technology makes shale gas hope of future energy. Shale gas development in the United States has achieved great success, setting off a worldwide wave of shale gas development. China has also opened its own shale gas exploration. From the theoretical research, resource assessment, shale gas standard, fracturing drilling and completion technology, public policy, environmental protection, natural gas prices and the analysis of other several aspects of the current status of development of shale gas it is concluded that large-scale exploitation of shale gas is not suitable at present in China.