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Grímsnes

Grimsnes

화산대지 · 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. · 사진: Photo by Lee Siebert, 2008 (Smithsonian Institution). · Wikimedia Commons
화산 유형
화산대지
국가
Iceland
지역
Atlantic Ocean Volcanic Regions / Iceland Neovolcanic Rift Volcanic Province
해발
200m
좌표
64.050, -20.883
마지막 분화
-3500년
판구조 환경
Rift zone / Oceanic crust (< 15 km)
화산 지형
Cluster
주요 암석
Basalt / Picro-Basalt
지질학적 요약

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 요약

영어 요약

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 · 전체 기사 보기

분화 이력

요약 (VEI 시계열)
막대를 클릭하면 개별 분화가 표시됩니다
7750 BCE~7557 BCE · 1건 · 최고 VEI 36398 BCE~6205 BCE · 1건 · 최고 VEI ?4659 BCE~4466 BCE · 1건 · 최고 VEI 04466 BCE~4273 BCE · 1건 · 최고 VEI 24273 BCE~4080 BCE · 1건 · 최고 VEI 34080 BCE~3886 BCE · 3건 · 최고 VEI 23886 BCE~3693 BCE · 1건 · 최고 VEI 03693 BCE~3500 BCE · 2건 · 최고 VEI 27750 BCE6784 BCE5625 BCE4659 BCE3693 BCE

상세 타임라인

  1. 기원전 3500년VEI 2지질학적 추정
    BCE 3500 ~ 진행 중
    Kalfsholar
  2. 기원전 3650년VEI 0지질학적 추정
    BCE 3650 ~ 진행 중
    Borgarholar
  3. 기원전 3750년VEI 0지질학적 추정
    BCE 3750 ~ 진행 중
    Raudholar
  4. 기원전 3900년VEI 0지질학적 추정
    BCE 3900 ~ 진행 중
    Kolgrafarholl
  5. 기원전 4000년VEI 2지질학적 추정
    BCE 4000 ~ 진행 중
    Alftarholl
  6. 기원전 4050년VEI 0지질학적 추정
    BCE 4050 ~ 진행 중
    Borgaholl
  7. 기원전 4270년 (±150년)VEI 3지질학적 추정
    BCE 4270 ~ 진행 중
    Kerholar
  8. 기원전 4450년VEI 2지질학적 추정
    BCE 4450 ~ 진행 중
    Selholl North
  9. 기원전 4500년VEI 0지질학적 추정
    BCE 4500 ~ 진행 중
    Selholl South
  10. 기원전 6250년VEI ?지질학적 추정
    BCE 6250 ~ 진행 중
  11. 기원전 7750년VEI 3지질학적 추정
    BCE 7750 ~ 진행 중
    Seydisholar

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