1. In near surface envioronments, rocks of granitic composition begin to melt at about 800C 2. The average geothermal gradient in the upper crust of the Earth is about 1C per kilometer 3. Volcanoes of...
1. How can you distinguish a sill from a buried lava flow? 2. how are batholiths emplaced? 3. What criteria are used to classify plutons? 4. why are volcanoes associated with highly viscous magmas...