Rampino thinks that certain tillites were produced by meteor impacts, not glaciers.
兰皮诺认为某些冰碛岩是由流星撞击而产生的，而不是冰川。
2
The problem with ascribing all tillites to glaciation, however, is that tillite deposits are widespread in Precambrian sediments.
然而，使所有的黑土形成冰川作用的问题是，在前寒武纪沉积物中广泛分布有黑土。
3
Three layers of tillites are developed in the Beiyixi formation, Teriaikan formation and Hangeerqiaoke formation of the Neoproterozoic in Quruqtagh region.