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Fremri-Námur

Fremrinamar

Stratovulcano · Iceland · 970 m

Fremrinámar, NNE of Askja and SE of Mývatn lake, is a volcanic system that is constructed over the Ketildyngja shield volcano (center). Associated fissure systems, including the Sveinar fissure, extend 130 km to the N coast of Iceland. Mývatn lake formed as a result of the eruption of the 70-km-long older Laxarhraun lava flow from Ketildyngja shield volcano about 3,800 years ago. The latest eruption from Fremrinámar produced the Búrfellshraun lava flow about 2,500-3,000 years ago.
Fremrinámar, NNE of Askja and SE of Mývatn lake, is a volcanic system that is constructed over the Ketildyngja shield volcano (center). Associated fissure systems, including the Sveinar fissure, extend 130 km to the N coast of Iceland. Mývatn lake formed as a result of the eruption of the 70-km-long older Laxarhraun lava flow from Ketildyngja shield volcano about 3,800 years ago. The latest eruption from Fremrinámar produced the Búrfellshraun lava flow about 2,500-3,000 years ago. · Foto: Photo by Richie Williams, 1981 (U.S. Geological Survey). · Wikimedia Commons
Tipo
Stratovulcano
Paese
Iceland
Regione
Oceano Atlantico / Iceland Neovolcanic Rift Volcanic Province
Altitudine
970 m
Coordinate
65.416, -16.666
Ultima eruzione
-1200
Contesto tettonico
Rift zone / Oceanic crust (< 15 km)
Forma vulcanica
Composite
Roccia principale
Basalt / Picro-Basalt
Sintesi geologica

The Fremrinámar volcanic system, N of Askja and SE of Myvatn lake, includes the central Ketildyngja shield volcano and the Sveinar fissure swarm that extends 130 km to the north coast of Iceland. The Kerlingardyngja shield volcano to the south is early Holocene. The latest eruption produced the Burfellshraun lava flow about 3,200 years ago that covered 75 km2.

Sintesi da Wikipedia

Riassunto in inglese

Fremrinámur is a volcano with a volcanic system located on the basalt plateau in Iceland. It is at the junction of the Mid-Atlantic Ridge and the Greenland–Iceland–Faeroe Ridge. It is one of five volcanic systems found in the axial rift zone in north-east Iceland. Its height is about 939 m (3,081 ft).

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Storia delle eruzioni

Riepilogo (VEI nel tempo)
Fai clic su una barra per vedere le singole eruzioni
4050 BCE~3860 BCE · 2 eruzioni · VEI max. 02340 BCE~2150 BCE · 1 eruzioni · VEI max. 01390 BCE~1200 BCE · 1 eruzioni · VEI max. ?4050 BCE3290 BCE2720 BCE1960 BCE1390 BCE

Cronologia dettagliata

  1. 1200 a.C.VEI ?Stima geologica
    BCE 1200 – In corso
    Kraeduborgir (Burfellshraun)
  2. 2300 a.C.VEI 0Stima geologica
    BCE 2300 – In corso
    Ketildyngja
  3. 4000 a.C.VEI 0Stima geologica
    BCE 4000 – In corso
    Kerlingardyngja
  4. 4050 a.C. (±1050 anni)VEI ?Stima geologica
    BCE 4050 – In corso
    Sveinar (Rauduborgir) fissure

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