San Cristobal
Vulcano a scudo · Ecuador · 707 m
- Tipo
- Vulcano a scudo
- Paese
- Ecuador
- Regione
- Eastern Pacific Volcanic Regions / Galapagos Hotspot Volcano Group
- Altitudine
- 707 m
- Coordinate
- -0.829, -89.429
- Ultima eruzione
- Sconosciuto
- Contesto tettonico
- Rift zone / Oceanic crust (< 15 km)
- Forma vulcanica
- Shield
- Roccia principale
- Basalt / Picro-Basalt
Sintesi geologica
San Cristóbal Island consists of a densely vegetated western part and a lower, younger eastern part with many unvegetated lava flows. The morphology on the SW side of the resembles low-angle Hawaiian shields more than the steep-sided shields of Fernandina and Isabela Island. Most lava flows on the NE part of the island originated from SW-NE-trending fissures. Some of the flows have reached the sea, where littoral cones formed. The dates of the latest eruptions are unknown, but possibly less than 1,000 years old. Kicker Rock, two small islands about 5 km off the NW coast, is an eroded remnant of a tuff cone.
Sintesi da Wikipedia
Riassunto in ingleseSan Cristóbal Island, also known as Chatham Island, is the easternmost island in the Galápagos archipelago, as well as one of the oldest geologically. It is administratively part of San Cristóbal Canton, Ecuador.
Wikipedia · CC BY-SA · Leggi l'articolo completo →
Storia delle eruzioni
Cronologia dettagliata
Nessuna registrazione di eruzioni disponibile.
Link esterni
⚠ Solo a scopo informativo. Non adatto a situazioni di emergenza.