Abstract:

Cam Đường is one of the areas of Lão Cai province that has a large potentiaỉ of apatite resources. Over the past severa!' years, some of the mines have been exploiting apatite ore in the Cam Đuò’ng ĩormation for recovery of phosphorus in the production of phosphate, synthetic fertilizers or industrial Processing, etc, Hovvever, a study evaluating the reliability of the apatite ore losses and the tactors affeci;ng on it that has not been paying attention as it should be, because of our attention are mainly ĩocused on exploration and exploitation of this ore type. Resulted research and synthetic documents show that in the Mỏ Cóc mine area, apatite formatíons are mainly observed in the middle part of Cam Đường tormation, this area is a!so dominated by foids and taults at various scales. The taults are the primạry development of the Northwest-Southeast pnd Northeast-Southvvest directions. The statistic results of apatite ore mining documents fronn 2011 to 2016 show that the ratio of apatite loss ranged from 8.25 % to 15.32 %, averaging 11.78 %. The cause of this loss is assessed mainly by the íactors of geological conditions and minìng system. The research results contribute to solutìons to mínimize losses, improve efficiency in apatite ore exploitation, contributing to maintaining stability and development of the companỵ in the short and long terms.