The process of alternating solid rock masses is called metamorphism.固体岩体变换的过程即所谓变质作用.Danba area has undergone multiperiod deformation, metamorphism and magmatism since Mesozoic time.丹巴地区自中生代以来经历了多期的变形 、 变质和岩浆作用.The metal...
On the condition of thermal contact metamorphism, clay minerals in coal are changed into andalusite.无烟煤中红柱石是煤中粘土质矿物经热接触变质作用形成的.The process of alternating solid rock masses is called metamorphism.固体岩体变换的过程即所谓变质作用.Dynamica...