山东枣庄薛城地区稀土矿成矿规律研究及找矿预测

Study on Metallogenic Regularity and Prospecting Prediction of Rare Earth Deposit in Xuecheng Region of Zaozhuang City in Shandong Province

鲁南微山县郗山稀土矿为我国北方三大富轻稀土矿之一,也是山东省最重要的轻稀土矿产地,其周边地区是山东省重要的稀土矿远景找矿预测区。通过综合找矿方法在山东省枣庄市薛城地区开展矿产调查工作,发现了重要的稀土矿找矿线索,其成矿类型、成矿时期及成矿模式等与郗山稀土矿具有内在的时空、成因联系。该文以利用综合找矿方法在枣庄薛城地区稀土矿调查评价中的应用为实例,通过与郗山稀土矿的对比探讨,分析了该区稀土矿的成矿规律及成矿模式,并结合区域成矿背景进行了成矿预测,对鲁南地区今后稀土矿的调查评价工作具有指导作用。

Xishan rare earth deposit in Weishan county of Luxi area is one of the three largest rare earth deposit innorthern China. It is also the most important light rare earth ore field. Its surrounding area is important prospectiveprospecting area of rare earth in Shandong province. In recent years, mineral surveying in Xuecheng region ofZaozhuang city in Shandong province has been carried out by Shandong Geophysical and Geochemical ExplorationInstitute. Some important rare earth ore prospecting clues have been found through comprehensive prospecting methods in this region. It is found that metallogenic types, ore-forming period and the metallogenic model has intrinsicspatio-temporal and genetic relationships with Xishan deposit. Regarding the application of comprehensive prospec？ting methods in rare earth ore survey and assessment in Xuecheng region of Zaozhuang city as an example, metallogenic regularity and metallogenic model of rare earth deposit in this region have been studied and analyzed by contrast with Xishan rare earth deposit. Combining with regional metallogenic background, valuable ore-forming prediction has been carried out. It will guide the investigation and evaluation of rare earth mines in the south of Shandong province.