我国稀土资源极其丰富,其产地已经自北向南推移;矿床类型已由原生矿、伴生矿和砂矿,发展到我国独有的,规模大、品位高、容易开采利用的花岗岩风化壳离子吸附型矿床;北方多以轻稀土为主,通常重稀土只占稀土总量的百分之几。南方则 China’s rare earth resources are extremely rich and its origin has shifted from north to south. The types of deposits have been developed from primary ore, associated ore and sand mine to the unique granite crust ion adsorption type of our country with large scale, high grade and easy exploitation and utilization In the north, mostly light rare earths are the main types, and heavy rare earths usually account for only a few percent of the total rare earths. South then