I am originally from Arizona and a few years ago my and family and I visited Sunset Crater which is located in Flagstaff, Arizona. Sunset Crater is a cinder cone volcano which last erupted over 1,000 years ago. This crater is a form of extrusive igneous rock and I can come up with that conclusion by how the rock was formed and shaped. The magma when it erupted cooled on the outside of the earth's crust and was exposed to cool temperatures. There was a lot of dark rock, which is basalt rock all around the national park, which is another sign of it being extrusive igneous rock.
Although I have not been to this national park in a few years I can still remember a lot about it. It is so amazing that a volcano this big is not extinct. The eruption must have been huge because the amount of igneous rock all around the mountain/crater is amazing. It would be cool to go back to this site when going back home after taking this class and seeing all the other geological features about this crater.
No comments:
Post a Comment