|MadSci Network: Earth Sciences|
Greetings. The crater you discoverd with Google Earth is a part of the Pinacate volcanic field, in Pinacate National Park. Specifically, it is the Cerro Colorado tuff cone. This tuff cone is the biggest volcano crater in the park and was created largely by wet pyroclastic surges. It is suggested that several centers of eruption and collapse are responsible for the structure which today has a crater of about 1000 meters in diameter.
I hope this has helped.
James R Holliday
Try the links in the MadSci Library for more information on Earth Sciences.