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グリムスネース

Grimsnes

火山原 · Iceland · 200m

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. · 写真: Photo by Lee Siebert, 2008 (Smithsonian Institution). · Wikimedia Commons
タイプ
火山原
国
Iceland
地域
Atlantic Ocean Volcanic Regions / Iceland Neovolcanic Rift Volcanic Province
標高
200m
座標
64.050, -20.883
最終噴火
-3500年
テクトニクス環境
Rift zone / Oceanic crust (< 15 km)
火山地形
Cluster
主要岩石
Basalt / Picro-Basalt
地質学的概要

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.

Wikipedia の要約

英語版の要約

Grímsnes is a relatively small fissure or crater row volcanic system located in South Iceland, located south–east of Lake Thingvallavatn and east of the en echelon group of volcanic systems extending across the Reykjanes Peninsula, that erupted last in the Holocene.

Wikipedia · CC BY-SA · 記事全文を読む →

噴火履歴

概要 (VEI時系列)
バーをクリックすると個別の噴火が表示されます
7750 BCE~7557 BCE · 1件 · 最大 VEI 36398 BCE~6205 BCE · 1件 · 最大 VEI ?4659 BCE~4466 BCE · 1件 · 最大 VEI 04466 BCE~4273 BCE · 1件 · 最大 VEI 24273 BCE~4080 BCE · 1件 · 最大 VEI 34080 BCE~3886 BCE · 3件 · 最大 VEI 23886 BCE~3693 BCE · 1件 · 最大 VEI 03693 BCE~3500 BCE · 2件 · 最大 VEI 27750 BCE6784 BCE5625 BCE4659 BCE3693 BCE

詳細タイムライン

  1. 紀元前 3500年VEI 2地質学的推定
    BCE 3500 ~ 進行中
    Kalfsholar
  2. 紀元前 3650年VEI 0地質学的推定
    BCE 3650 ~ 進行中
    Borgarholar
  3. 紀元前 3750年VEI 0地質学的推定
    BCE 3750 ~ 進行中
    Raudholar
  4. 紀元前 3900年VEI 0地質学的推定
    BCE 3900 ~ 進行中
    Kolgrafarholl
  5. 紀元前 4000年VEI 2地質学的推定
    BCE 4000 ~ 進行中
    Alftarholl
  6. 紀元前 4050年VEI 0地質学的推定
    BCE 4050 ~ 進行中
    Borgaholl
  7. 紀元前 4270年 (±150年)VEI 3地質学的推定
    BCE 4270 ~ 進行中
    Kerholar
  8. 紀元前 4450年VEI 2地質学的推定
    BCE 4450 ~ 進行中
    Selholl North
  9. 紀元前 4500年VEI 0地質学的推定
    BCE 4500 ~ 進行中
    Selholl South
  10. 紀元前 6250年VEI ?地質学的推定
    BCE 6250 ~ 進行中
  11. 紀元前 7750年VEI 3地質学的推定
    BCE 7750 ~ 進行中
    Seydisholar

外部リンク

⚠ 参考情報です。緊急対応には使用しないでください。