Jólnir
| Jólnir | |
| ö/ögrupp | |
 Jólnirs läge strax utanför Surtsey. | |
| Land |  Island |
|---|---|
| Koordinater | 63°17′40.92″N 20°37′58.08″V / 63.2947000°N 20.6328000°V |
| Högsta punkt | 64 (som högst), nu under vattenytan. |
| Tidszon | GMT (UTC+0) |
| Geonames | 7671168 |
| Numera borteroderad. | |
Jólnir var tidigare en vulkanisk ö söder om Island. Den reste sig ur havet i juli 1966 där den vulkaniska konen på Jólnir nådde 70 meter över havet
Det var uppkallad efter Jólnir, en fornnordisk gud (mer känd som Oden).
Bildandet av Jolnirs är nära knuten till den närliggande vulkaniska ön Surtsey, som uppstod 1963. Efter det att vulkanutbrottet som bildade Jólnir upphört den 8 augusti 1966 vittrade ön snabbt bort. Under oktober 1966 försvann ön under Atlantens yta.
Media som används på denna webbplats
Topographic map of Surtsey-sv.svg
Författare/Upphovsman:
Författare/Upphovsman:
- Topographic_map_of_Surtsey-fr.svg: Pinpin
- derivative work: Inteloutside2 (talk)
Jolnir Island in 1966 aerial photo.jpg
Two water-filled vents cap Jolnir Island on August 22, 1966, less than two weeks after it ceased erupting. Jolnir was formed during repeated submarine eruptions that began in October 1965 immediately SW of the new island of Surtsey (upper right). Jolnir Island was repeatedly built above sea level and then destroyed by erosion before it ceased activity on August 10. No lava flows were produced at Jolnir, and a month after this photo was taken the loosely consolidated ash deposits disappeared beneath the sea for the final time.
Two water-filled vents cap Jolnir Island on August 22, 1966, less than two weeks after it ceased erupting. Jolnir was formed during repeated submarine eruptions that began in October 1965 immediately SW of the new island of Surtsey (upper right). Jolnir Island was repeatedly built above sea level and then destroyed by erosion before it ceased activity on August 10. No lava flows were produced at Jolnir, and a month after this photo was taken the loosely consolidated ash deposits disappeared beneath the sea for the final time.