Los Azufres
| Los Azufres | ||
|---|---|---|
| height | 3400 m | |
| location | Mexico | |
| Coordinates | 19 ° 51 ′ 0 ″ N , 100 ° 38 ′ 0 ″ W | |
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| Type | Caldera | |
| Last eruption | Pleistocene | |
The Caldera Los Azufres is one of several volcanic complexes with active geothermal systems north of the Mexican volcanic belt. The caldera with a diameter of 18 × 20 kilometers is located 200 kilometers northwest of Mexico City .
Two eruption cycles with a duration of 200,000 years each can be detected between 1.4 million and 800,000 years ago. The most recent dating of lava goes back to around 600,000 years ago when some lava domes were formed and basaltic to rhyolite eruption products were mined. The most recent ignimbrite deposits are estimated to be 38,000 to 26,000 years old. Hot springs and fumaroles are located on an east-west geothermally active axis.
Web links
- Los Azufres in the Global Volcanism Program of the Smithsonian Institution (English)