Nevado de Toluca

Stratovolcano 4680+ m / 15,354 ft
Central Mexico, 19.11°N / -99.76°W
Aktueller Status: normal / ruhend (1 von 5)

Nevado de Toluca volcano is México's fourth highest peak. In the Nahuatl Indian name it is called Xinantécatl. Nevado de Toluca is a broad central stratovolcano rising above the Toluca basin about 80 km west of Mexico City, and located 23 km southwest from the city of Toluca, capital of the State of Mexico.
The last eruption was about 3300 years ago, and the volcano is considered still active.

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Typische Tätigkeit: Explosiv
Ausbrüche: 1530 BC(?) (radiocarbon dating), ca. 10,500 years ago (Upper Toluca Pumice), 12.100 BP (White Pumice Flow), 14 ka BP, 24 ka BP (Lower Toluca Pumice), 26 ka, 28 ka, 32 ka, 36-37 ka (Ochre Pumice Fall)
Letzte Erdbeben in der Nähe: Keine jüngeren Beben

Beschreibung

Nevado de Toluca Volcano is a complex andesitic-dacitic stratovolcano and has a 1.5-km-wide summit crater that is open to the east. A large dacitic lava dome in this crater separates two lakes, known as the lakes of the Sun and Moon.
At least 3 major edifice collapses during the Pleistocene produced large debris-avalanche and lahar deposits that affected broad areas below the volcano.
2 violent Pelean eruptions during the late Pleistocene produced widespread ashfall and pyroclastic-flow deposits. The last of these, radiocarbon dated at about 10,500 years before present, produced the Upper Toluca Pumice.
More recent work has revealed evidence for at least one Holocene eruption, about 3300 years ago, that produced pyroclastic flows and surges.
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Sources:
- GVP, Smithsonian Institution
- García-Palomo et al (2002) "Geology of Nevado de Toluca Volcano and
surrounding areas, central Mexico", Geol. S. Am. Map and Chart Series MCH089


Siehe auch: Sentinel hub | Landsat 8 | NASA FIRMS
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