在岩浆岩的许多结构类型中,矿物交生结构一般认为最为复杂,人们对它的成因则更是见仁见智,议论纷纷。远自十九世纪70年代,即显微镜初被应用于岩石学研究不久,一些著名学者,如米歇尔里微、福克以及后米的爱尔文、贝克等人就注意到在某些岩浆中有石英蠕虫(quartz vermicule),两种矿物紧密交生等现象,并都曾尝试从成因上予以解释。塞德荷姆在他的早期著作中也不时提出类似的岩石结构。后来在1916年,他更写出了 Among the many structural types of magmatic rocks, the structure of mineral exchange is generally considered to be the most complicated, and people are even more divided on its causes. Far from the early 1870s, when microscopy was first applied to petrology research, some notable scholars, such as Michelle Michel, Fokker, and later Melvin, Baker and others, noticed that in some magmas Quartz worms (quartz vermicule), the phenomenon of close contact between the two minerals and other phenomena, and have tried to explain from the genesis. Sedhim made similar rock structures from time to time in his early writings. Later in 1916, he wrote more