在火成岩、变质岩、混合岩中,“球状”岩石是不乏见的。“球状”岩石最早为伯奇(Buch)所描述,以后一直为岩石学家所注意。对“球状”岩石中球体的成因,有各种各样的解释莱维森(Leveson)。凯斯勒(Kesler)用电子探针研究了球状安山岩中球体和基质的化学成分特点,并据基思(Keith)假说,推测了球体形成温度为900—1000℃,球体生长速度为10~(-6)厘米/秒。 In igneous rocks, metamorphic rocks and mixed rocks, “spherical” rocks are not uncommon. The “spherical” rock was first described by Buch and has been the focus of petrologists ever since. There are various explanations of the causes of the spheres in “spherical” rocks, Leveson. Kesler studied the chemical composition of spherulites and matrices in spherical andesite using electron microprobe. According to the Keith hypothesis, the spheroid formation temperature was estimated at 900-1000 ℃ and the spheroid growth rate was 10 ~ ( -6) cm / second.