Basalt lava flows
•Pahoehoe – lower viscosity, hotter → smooth
•A’a – higher viscosity, cooler, → rough
•Flows can travel long distances as surface crust insulates lava below it


•Pahoehoe – lower viscosity, hotter → smooth
•A’a – higher viscosity, cooler, → rough
•Flows can travel long distances as surface crust insulates lava below it

