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Grímsnes

Grimsnes

Campo volcánico · Iceland · 200 m

A small pond about 60 x 100 m fills the bottom of the Kerid crater at the northern end of the Tjarnarhólar crater row in the Grímsnes volcanic system. The crater is elliptical in shape, 180 x 280 m. The Seyðishólar and Kerhóll cinder cones, visible in the background to the north, were active about 9,500 and 7,050 years ago respectively. Seyðishólar is the only Holocene eruption recognized to have had tephra dispersal outside of the volcanic field.
A small pond about 60 x 100 m fills the bottom of the Kerid crater at the northern end of the Tjarnarhólar crater row in the Grímsnes volcanic system. The crater is elliptical in shape, 180 x 280 m. The Seyðishólar and Kerhóll cinder cones, visible in the background to the north, were active about 9,500 and 7,050 years ago respectively. Seyðishólar is the only Holocene eruption recognized to have had tephra dispersal outside of the volcanic field. · Foto: Photo by Lee Siebert, 2008 (Smithsonian Institution). · Wikimedia Commons
Tipo
Campo volcánico
País
Iceland
Región
Atlantic Ocean Volcanic Regions / Iceland Neovolcanic Rift Volcanic Province
Altitud
200 m
Coordenadas
64.050, -20.883
Última erupción
-3500
Contexto tectónico
Rift zone / Oceanic crust (< 15 km)
Forma volcánica
Cluster
Roca principal
Basalt / Picro-Basalt
Resumen geológico

Grímsnes is a relatively small volcanic system located SE of Thingvallavatn lake. It is displaced about 15-20 km to the east of the other en-echelon group of volcanic fields of the Western Volcanic Zone extending across the Reykjanes Peninsula. Its lava flows cover 54 km2 and were erupted from a group of 11 fissures that produced a series of NE-SW-trending crater rows. The eruptions of its basaltic lavas were considered to have been restricted to a relatively short interval between about 6,500 and 5,500 years ago, but radiocarbon dating showed that some of the lava flows were emplaced between about 7,400 and 8,900 years ago.

Resumen de Wikipedia

El Grímsnes es un volcán fisural dormido de Islandia de unos 214 metros que alberga un lago. 64°2′N 20°52′O

Wikipedia · CC BY-SA · Leer artículo completo →

Historial de erupciones

Resumen (VEI en el tiempo)
Haga clic en una barra para ver erupciones individuales
7750 BCE~7557 BCE · 1 erupciones · VEI máx. 36398 BCE~6205 BCE · 1 erupciones · VEI máx. ?4659 BCE~4466 BCE · 1 erupciones · VEI máx. 04466 BCE~4273 BCE · 1 erupciones · VEI máx. 24273 BCE~4080 BCE · 1 erupciones · VEI máx. 34080 BCE~3886 BCE · 3 erupciones · VEI máx. 23886 BCE~3693 BCE · 1 erupciones · VEI máx. 03693 BCE~3500 BCE · 2 erupciones · VEI máx. 27750 BCE6784 BCE5625 BCE4659 BCE3693 BCE

Línea de tiempo detallada

  1. 3500 a. C.VEI 2Estimación geológica
    BCE 3500 – En curso
    Kalfsholar
  2. 3650 a. C.VEI 0Estimación geológica
    BCE 3650 – En curso
    Borgarholar
  3. 3750 a. C.VEI 0Estimación geológica
    BCE 3750 – En curso
    Raudholar
  4. 3900 a. C.VEI 0Estimación geológica
    BCE 3900 – En curso
    Kolgrafarholl
  5. 4000 a. C.VEI 2Estimación geológica
    BCE 4000 – En curso
    Alftarholl
  6. 4050 a. C.VEI 0Estimación geológica
    BCE 4050 – En curso
    Borgaholl
  7. 4270 a. C. (±150 años)VEI 3Estimación geológica
    BCE 4270 – En curso
    Kerholar
  8. 4450 a. C.VEI 2Estimación geológica
    BCE 4450 – En curso
    Selholl North
  9. 4500 a. C.VEI 0Estimación geológica
    BCE 4500 – En curso
    Selholl South
  10. 6250 a. C.VEI ?Estimación geológica
    BCE 6250 – En curso
  11. 7750 a. C.VEI 3Estimación geológica
    BCE 7750 – En curso
    Seydisholar

Enlaces externos

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