东坡矿田构造层次与内生成矿作用及其隐伏矿床预测

在矿床地质研究程度极高的郴县东坡矿田,近几年相继发现了野鸡尾石英斑岩型锡矿床和红旗岭锡矿床等,这表明该矿田仍有找矿潜力。根据我们对东坡矿田构造层次与成矿关系等的研究发现,东坡矿田的内生多金属矿床均产出在构造层次发生梯变地带(段),从而提出从构造层次的角度预测隐伏内生矿床的四条基本原则,并在东坡矿田提出了东坡山、横山岭、龙头岭三个隐伏矿床预测区。因此矿田构造层次的研究是矿田控岩控矿构造研究的一个新领域,对成矿预测具有重要意义。

THE STRUCTURAL LEVELS AND ENDOGENIC METALLIZATION IN DONGPO OREFIELD AND PREDICTING OF CONCEALED DEPOSITS

The recent discovery of Yiejiwei quartz porphyry tin deposit and Hongqiling tin deposit in succession in the well-studied Dongpo orefield in Chen county indicates that this orefield is still of ore-finding potential. The studies on the relationship between structural level and metallization in Dongpo orefield lead us to conclude that the endogenic polymetallic ore deposits in Dongpo orefield occur all along the structural level gradient zones, and then four cardinal principles for predicting concealed endogenic deposits are put forword from the point of view of structural level, and three prospects for concealed ore deposit(Dongposhan, Hongshanling, and Longtouling)are proposed in Dongpo orefield according to the principles. It is not difficult to be seen from above that the structural level studies of orefield is a new field of study on ore-and rock-controlling structures, and is of great significance in the prognosis of metallization.