There are many active volcanoes in Arizona
A volcano is an opening in Earth’s surface through which magma, ash, and gas can escape. Volcanoes form when magma rises up from deep within the Earth and collects in magma chambers near the surface. When pressure in the magma chamber becomes too great, the magma is forced out through the opening at the top of the volcano.
The main parts of a volcano are:
There are several different types of volcanoes, including:
3. Composite volcanoes: These are also known as stratovolcanoes. They have a conical shape and are composed of alternating layers of lava flows and pyroclastic material. They are formed by both explosive eruptions and effusive lava flows.
5. Submarine volcanoes: These are volcanoes that form under the ocean. They can be any of the above types, but are most commonly shield volcanoes.
6. Cryovolcanoes: These are volcanoes that erupt with volatiles like water, ammonia, or methane rather than magma. They are found on planets and moons with volatile-rich surfaces, such as Saturn’s moon Enceladus.
Map of the Volcanoes on Pinal County
There are a lot of volcanoes in Arizona, including:
2. San Francisco Peaks: These are a group of peaks located in the San Francisco Volcanic Field near Flagstaff. The range is the remnant of San Francisco Mountain The highest peak, Humphreys Peak, is the highest point in Arizona at 12,633 feet (3,851 meters). The whole San Francisco field includes around 600 volcanoes.
4. Mojave Mountain: This is a stratovolcano located in the Hualapai Mountains, Mohave County in western Arizona. It last erupted about 2 million years ago.
5. Cerbat Mountains: These are a group of stratovolcanoes located in Mohave County, northwest Arizona. They last erupted about 25 million years ago.
Volcano Parts Coloring Sheet