河南省钙红土风化壳型铝土矿沉积规律及找矿远景概论

Sedimentary environment of the red earth weathering crust type bauxite and the outlook for its exploration

河南省是我国第二产铝大省,采用目前已查明的75个大中型铝土矿床勘查资料和样品测试结果,通过铝土矿成矿物质来源;矿床沉积环境及形成方式;矿床成矿规律等三方面对河南省铝土矿沉积规律进行全面阐述。然后应用所得成果总结了河南省铝土矿的分布规律,运用六个影响铝土矿找矿的因素:①成矿时代找矿;②沉积环境找矿③古地理找矿;④古岛边缘的分布规律;⑤沉积盆地内的喀斯特地貌;⑥构造控矿条件。划出了进一步找矿中的三个大的重点找矿远景区。

Henan province is the second largest aluminum producing province in our country. The sedimentation regularity of Henan bauxite deposit has been discussed thoroughly, based on the deposit exploration data and sample testing result of the explored 75 large and middle type bauxite deposit and matter source of bauxite,metallogenic resource and the ore forming form and its sediment environment. The distribution regularity of Henan bauxite deposit was summarized with the applied results. The facts which will influence prospec- ting includes： 1. Metallogenic era; 2. sedimentary environment; 3. ancient geography; 4. Distribution regularity of ancient island; 5. Karst landscape of sedimentary basin; 6. structure construction ore controlling condition. And three large key prospecting promising areas has been outlined.