Skjaldbreiður
Prestahnukur
열극 분화구 · Iceland · 1385m
- 화산 유형
- 열극 분화구
- 국가
- Iceland
- 지역
- Atlantic Ocean Volcanic Regions / Iceland Neovolcanic Rift Volcanic Province
- 해발
- 1385m
- 좌표
- 64.583, -20.666
- 마지막 분화
- -3350년
- 판구조 환경
- Rift zone / Oceanic crust (< 15 km)
- 화산 지형
- Cluster
- 주요 암석
- Basalt / Picro-Basalt
지질학적 요약
The Prestahnúkur volcanic system is located on the W side of the Langjökull icecap at the west margin of the Western Volcanic Zone, and overlaps with the Hengill volcanic system north of Lake Þingvallavatn. It is about 90 km long and 15 km wide, with a subglacially erupted rhyolite peak and associated rift zones to the N and SW that have erupted during the Holocene. A large part of the volcanic system is underlain by early to mid Pleistocene plateau basalts. Olivine tholeiite basalt lava shields have erupted during the Holocene.
Wikipedia 요약
영어 요약Skjaldbreiður is an Icelandic lava shield formed in a huge and quite protracted eruption series from about roughly 9,500 years ago. The extensive lava fields which were produced by this eruption, flowed southwards, and formed the basin of Þingvallavatn, Iceland's largest lake, and Þingvellir, the "Parliament Plains" where the Icelandic national assembly, the Alþing was founded in 930.
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분화 이력
상세 타임라인
- 기원전 3350년VEI 0지질학적 추정BCE 3350 ~ 진행 중Sköflungur
- 기원전 6950년VEI 0지질학적 추정BCE 6950 ~ 진행 중Geitlandshraun II
- 기원전 7550년 (±500년)VEI 0지질학적 추정BCE 7550 ~ 진행 중Skjaldbreidur
외부 링크
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