Boot Heel volcanic field facts for kids

Quick facts for kids Boot Heel volcanic field
Volcanic vent at the head of the lava flow west of Animas, New Mexico at the base of the Peloncillo Mountains.
Highest point
Elevation	2,300 m (7,500 ft)
Geography
Location	Mexico–United States border
Geology
Age of rock	3.2 to 0.3 million years
Mountain type	volcanic field

The Boot Heel volcanic field is located in the Bootheel region of southwest New Mexico, adjacent areas of southeastern Arizona, and northwest Mexico. The field covers an area of more than 24,000 km². The field includes nine volcanic calderas ranging in age from 26.9 to 35.3 Ma. Extrusive products include rhyolitic ignimbrites along with basalt, andesite, and rhyolite lava flows. The major ash flow tuff sheets produced, range in volume from 35 to 650 km³.

The field includes the Geronimo-Animas volcanic field and the Palomas volcanic field.

Geronimo volcanic field

The Geronimo volcanic field (also known as the San Bernardino volcanic field) is a monogenetic volcanic field and a sub-section of the Boot Heel volcanic field in southeastern Arizona, US.

Calderas

The calderas of the Boot Heel field include:

• Pyramid Mountains
  • Muir caldera 35.3 Ma
• Peloncillo Mountains
  • Steins caldera 34.4 Ma
• Animas Mountains
  • Juniper caldera 33.5 Ma
  • Animas Peak caldera 33.5 Ma
  • Tullous caldera 35.1 Ma
• Chiricahua Mountains
  • Geronimo Trail caldera 32.7 Ma
  • Clanton Draw caldera 27.4 Ma
  • Portal caldera 27.6 Ma
  • Turkey Creek caldera 26.9 Ma