Þeistareykjabunga
| Þeistareykjabunga | ||
|---|---|---|
| height | 564 m | |
| location | Iceland | |
| Coordinates | 65 ° 52 '48 " N , 16 ° 50' 24" W | |
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| Type | Shield volcano | |
| rock | basalt | |
| Last eruption | 900 BC Chr. | |
The Þeistareykjabunga is a shield volcano in northeast Iceland . The mountain is made up of layers of lava and reaches a height of 564 m . This is the central volcano of its own active volcanic system. The last eruption took place in prehistoric times. The main crater of the mountain is called Stóra-Víti and lies in the middle of the extensive flat cone that the mountain forms.
To the north of this is a secondary crater that is 500–600 m long and 50–60 m wide. This 40 m deep crater is called Langa-Víti and it is here that the mountain reaches its highest height. From this crater, lava flows have flowed northwards and have reached inhabited areas near Lón and Lindarbrekka .
After the last ice age, the shield volcano was very active like many others in the country. For example, it blocked the Jökulsá á Fjöllum river in its lower reaches at Öxarfjörður with a significant lava eruption , pushing it further east into its current bed.
A high temperature area with hot springs belongs to the volcano ( Þeistareykir ).
See also
Web links
- Þeistareykjabunga in the Global Volcanism Program of the Smithsonian Institution (English)
- Sabrina Metzger, ea: Locking depth and slip-rate of the Húsavík Flatey fault, North Iceland, derived from continuous GPS data 2006–2010, Geophysical Journal International, Volume 187, Issue 2, pages 564–576, November 2011 (Wiley, Abstract , English)