Eology i??Volcanoes&Earthquakei?0 discussion

Instructions:

Read Cooling the Lava, by John McPhee, posted in Weekly Readings in the folder for Week 5.
Go to the Discussion Board, then to the Forum entitled Cooling the Lava.
Post your response to this reading assignment. There are NO wrong answers, but this is a PASS-FAIL assignment and it will be noted if you fail to participate. Your post doesnt have to be long or detailed, just say something intelligent about what you read.