中国东部雄伟的大兴安岭山脉呈北北东向展布,长达1200公里,面积近50万平方公里,海拔500—2000米。虽然自新中国成立以来,相继以不同规模多次进行了开拓工作,可是由于植被厚、交通不便,至今的地质研究程度远不如毗邻的河北、辽宁、吉林等省区。 然而,自中生代以来的构造岩浆作用及其有关多金属、稀有金属成矿作用的意义,随着研究环太平洋构造岩浆作用的不断深入而愈加明显。据此, 笔者认为探讨中生代以来的大兴安岭构造岩浆作用是必要的。 The majestic Daxing’an Mountains in eastern China show a north-north eastward extension with an area of ​​1,200 kilometers and an area of ​​nearly 500,000 square kilometers and an elevation of 500-2,000 meters. Although since the founding of New China, it has successively carried out pioneering work on different scales one after another. However, due to the thick vegetation and inconvenient traffic, the extent of geology research so far is far less than the adjacent provinces of Hebei, Liaoning and Jilin. However, the significance of tectonic magmatism and its implications for metallogenesis of polymetallic and rare metals since the Mesozoic are more pronounced with the deepening of studies on the tectonic magmatism in the Pacific Rim. Accordingly, I believe that it is necessary to study the magmatism of Daxinganling since the Mesozoic.