湘西磷块岩矿床特征及勘查开发建议

湘西地区磷矿资源较丰富，主要为赋存于震旦系上统陡山沱组中的磷块岩矿床。该类矿床在湘西部分县市含矿层位稳定，分布广，矿床(点)多，埋藏浅，但品位低，选矿难，利用成本高。针对这些特征，提出如下勘查和开发的建议：即在整个湘西含磷层位出露范围内进行地质调查，对湘西震旦系磷块岩矿床资源进行总体综合评价，加强开采、选矿和加工等方面的技术攻关：同时充分利用地方政策、水电能源、交通条件等优势对较低品位、中小规模磷块岩矿进行开发利用。

THE TRAITS OF PHOSPHOR BLOCK ROCK DEPOSITS AND PROPOSAL ON ITS SURVEY AND EXPLOITATION

Affluent P-ore resources in west Hunan occurred mainly in phosphor block rock deposit of Doushantuo Group Upper Sinian System. This sort of deposit with stabilized P-bearing layer distributed widely with lots of deposits, shallowly buried, low grade, difficult mill run, high cost of exploitation. By use of these traits, we proposed as follows: geology survey should be carried through in the area of P-bearing layer exposure in whole west Hunan, phosphor block rock deposit resources of Sinian System in west Hunan be synthesized estimated as a whole, the technologies of exploitation, mill run and process etc. be strengthened; at the same time, the local policy and advantages of water and electricity energy sources and convenient traffic be made the best to exploit and make use of low-content and middle or small scale phosphor block rock resources.