摘要
除了超基性岩和纯石英岩外,其他所有的岩石在某种条件下均可成为三水型铝土矿床的成矿母岩.我国这类矿床主要形成于纬度不大于北纬26℃的温湿交替的亚热带地区,年平均气温高于20℃、年降雨量不小于1000mm的低缓山丘最有利于成矿,成矿时间不得短于第四纪.
Apart from the ultrabasicrock and pure quartzite, the other rocks probably form the minerogenetic protolith of gibbsite-type bauxite drposit under a certain enviroment. In China, this kind of deposit is mainly formed in the alternatingly warm - and - wet subtropical region, whose geographical latitude is not higher than North Lalitude 26°. The low and gentle - sloped hill in which the average annual temperature is above 20℃ , and the annual rainfall is not less than 1000mm is the most beneficial place for the formation of this kind of deposit, The minerogenetic time must be longer than the Quaternary Period(Q).
