变质基底 meaning in Chinese
metamorphosed basement
Examples
- The study of geological characteristics and geochemical conditions of mazhuangshan gold deposit shows that it is closely related with old metamorphic basement and volcano - magmatic activities as well as volcanics and volcaniclastics of mazhuangshan - mingshui superimposed volcanic basin , and controlled by structures derived from closure of late palaeozoic honghe basin
摘要对马庄山金矿地质特征及地球化学条件研究表明，马庄山金矿的形成与古老变质基底、火山岩浆活动及马庄山一明水上叠火山岩盆地的火山岩、火山碎屑岩紧密相关，并受到晚古生代红河盆地闭合而派生的构造控制。