.How does the viscosity of magmas relate to the physical appearance of volcanoes. (3.5 marks)
5.Explain the differences between pahoehoe and aa lavas. (2 marks)
6.Discuss in detail on prograde metamorphism of pelitic rocks with illustrations.
.How does the viscosity of magmas relate to the physical appearance of volcanoes. (3.5 marks)
5.Explain the differences between pahoehoe and aa lavas. (2 marks)
6.Discuss in detail on prograde metamorphism of pelitic rocks with illustrations.