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Country: | México | |
| Subregion Name: | México | ||
| Volcano Number: | 1401-092 | ||
| Volcano Type: | Tuff cones | ||
| Volcano Status: | Holocene | ||
| Last Known Eruption: | Unknown | ||
| Summit Elevation: | 3485 m | 11,434 feet | |
| Latitude: | 19.27°N * | 19°16'0"N | |
| Longitude: | 97.47°W | 97°28'0"W | |
| The Serdán-Oriental is a broad closed basin at the eastern end of the Mexican Altiplano dotted with rhyolitic lava domes, tuff cones, tuff rings, lava flows, and scoria cones of late-Pleistocene to Holocene age. The basin, filled by extensive large lakes during the Pleistocene, is bounded by the Cofre de Perote-Orizaba range on the east and Los Humeros caldera to the north. The most prominent features of the Serdán-Oriental volcanic field are the twin Las Derrumbadas lava domes, surrounded by an apron of debris-avalanche deposits, and the sharp-peaked Cerro Pizarro lava dome at the northern end of the basin. Several of the tuff rings, such as Laguna Atexcac and Laguna Alchichica, are filled with scenic lakes. A major explosive eruption from a vent inferred to be buried within the basin produced the Quetzalapa plinian pumice-fall deposit roughly 20,000 years ago. | |||
