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近年来 ,在大兴安岭北部发现近 10处岩金矿床 (点 )。大兴安岭北部金矿形成于中生代 ,且其成因与中生代岩浆活动关系密切。对本区金矿的成因类型二重限定性分类方案的原则是以Au所赋存的岩石类型 (热液岩或蚀变岩 )为第一依据 ,成矿温度作为第二依据。大兴安岭地区金矿在不同构造单元成因类型具有较大差别 ;在额尔古纳地块和上黑龙江盆地形成多种中温蚀变岩型金矿 ,在其南侧的增生带中形成了低温热液石英岩型金矿。
In recent years, nearly 10 gold and gold deposits have been discovered in the northern Daxinganling (point). The gold deposits in northern Da Hinggan Mountains formed during the Mesozoic, and its genesis is closely related to Mesozoic magmatic activity. The principle of the dual restrictive classification scheme for the genetic types of gold deposits in this area is based on the type of rocks (hydrothermal or altered rocks) hosted by Au and the second basis of metallogenic temperature. The gold deposits in the Daxinganling area have great differences in genetic types of different tectonic units. A large number of mid-temperature altered rock type gold deposits are formed in the Erguna block and the upper Heilongjiang basin, and low-temperature hydrothermal fluids are formed in the south- Quartzite type gold mine.