岩浆混合虽然是一个适用于多种岩浆类型的老概念,但近年来岩石学研究对此理论又重新发生了兴趣,因为它能解释钙碱性岩浆和大洋中脊玄武岩的成因。至于这两种不同性质的岩浆怎么能够混合形成安山质成分的均一岩浆或产生如条带状英安岩中所见的那种构造,以前尚无实验研究。为此我们进行了实验。结果表明,通过强制对流,可以使玄武质岩浆很容易发生混合,在不到几小时的时间内就能形成条带状英安岩及均质安山岩。下面是这项实验的简要报道。将基拉韦厄火山喷出的一种橄榄拉斑玄武岩和日 Although magma mixing is an old concept that is applicable to many magmatic types, the petrological research has renewed interest in this theory in recent years because it explains the genesis of calc-alkaline magma and mid-oceanic basalts. There has been no experimental study of how these two magmas of different nature can be mixed to form homogeneous magmas of andesitic elements or to produce structures such as those found in banded dacite. To this end we conducted experiments. The results show that basaltic magmas are easily mixed by forced convection and banded dacite and homogeneous andesite can be formed in less than a few hours. The following is a brief report on this experiment. An olive tholei basalt that erupts Kilauea volcanoes and the sun