A couple of weeks ago, Kat and I began our big geology project. We learned a lot about the geological history of Arizona and even took our lessons to the field! While examining the outcrops around us, we talked a lot about the layers of the Earth and plate tectonics. We talked about how layers of the crust may have been thrust upwards as plates moved into each other (uplift) and how some layers would sink under others as they moved lower to the mantle (subduction). However, as I was explaining these concepts to my daughter, I realized that she would have a much easierRead More →

“Rocks are records of events that took place at the time they formed. They are books. They have a different vocabulary, a different alphabet, but you learn how to read them.” -John McPhee A few weeks ago, Kat and I decided that we would take on a new project and learn about the geology of Arizona. We would learn about how the land was formed, the various changes it has gone through over the billions of years since its formation, and then visit various sites in the valley to look for geological evidence in the rocks. As we began planning the first part of ourRead More →