Block lava flows are common of andesitic lavas from stratovolcanoes. They behave in a similar fashion to ʻaʻā flows but their far more viscous character leads to the surface to be included in sleek-sided angular fragments (blocks) of solidified lava in place of clinkers. Your browser isn’t supported any more. https://edwinzhmqu.look4blog.com/52671565/the-basic-principles-of-lava