Abstract:

Cam Đường is one of the areas of Lào Cai province that has a large potential of apatite resources. Over the past several years, some of the mines have been exploiting apatite ore in the Cam Đường íormation for recovery of phosphorus in the production of phosphate, synthetic fertilizers or industrial Processing, etc. Hovvever, a study evaluating of general morphological and structural íeatures of apatite beds and their iníluence on the exploration and exploitation that has not been paying attention as it should be. The resulted research and synthetic documents show that the apatite Cóc mine has a complex structure, apatite ore quality is good and relatively stabie. The apatite beds vary greatly in thickness, from thin to very thick, and its changing degree of thickness are ranged from unsteady to very unstable, low eroded erosion to strong erosion, and relatively straight shaped seams. Bedded deposit and thickness of the apatite beds varies greatly, making it difficult to explore and exploit. The complexity mentioned above is the main cause of difficulties for the mining activities, increasing the loss of apatite ore during the mining process, reducing the economic value and ẻfficiency in mining.