The study of the geochemistry for typical Meso Cenozoic volcanic rocks from northern Erlian basin shows that the main magmas are acidic to neutral.

• 对二连盆地北部地区中、新生代典型火山岩地球化学研究表明,该区中、新生代强烈的岩浆活动以酸性、中性火山岩为主。