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한라산

Halla

순상화산 · South Korea · 1919m

The massive Halla shield volcano, seen here from the south, forms much of the 40 x 80 km Cheju Island, which lies 90 km S of the Korean Peninsula. More than 360 late-Pleistocene and Holocene basaltic cones on the flanks of the low-angle volcano were erupted primarily along the long axis of the NE-SW-trending island. Most of these are scoria cones, but about 10 along the coast are Pleistocene tuff rings and tuff cones. Flank eruptions continued into historical time, with the final two taking place during the 11th century.
The massive Halla shield volcano, seen here from the south, forms much of the 40 x 80 km Cheju Island, which lies 90 km S of the Korean Peninsula. More than 360 late-Pleistocene and Holocene basaltic cones on the flanks of the low-angle volcano were erupted primarily along the long axis of the NE-SW-trending island. Most of these are scoria cones, but about 10 along the coast are Pleistocene tuff rings and tuff cones. Flank eruptions continued into historical time, with the final two taking place during the 11th century. · 사진: Photo by Norm Banks, 1980 (U.S. Geological Survey). · Wikimedia Commons
화산 유형
순상화산
국가
South Korea
지역
동아시아 / Central East Asia Volcanic Province
해발
1919m
좌표
33.361, 126.530
마지막 분화
1007년
판구조 환경
Intraplate / Continental crust (> 25 km)
화산 지형
Shield
주요 암석
Basalt / Picro-Basalt
지질학적 요약

The massive Halla shield volcano forms much of the 40 x 80 km Cheju (Jeju) Island, which lies 90 km S of the Korean Peninsula. Eruptions during the Pliocene and Pleistocene built a lava plateau above the roughly 100-m-deep continental shelf on which the basaltic-to-trachytic edifice was constructed. A 400-m-wide crater truncates the summit. About 360 late-Pleistocene and Holocene basaltic cones across the flanks were erupted primarily along the long axis of the ENE-WSW-trending island. Most of these are scoria cones, but about 20 along the coast or offshore are Pleistocene-to-Holocene tuff rings and tuff cones; lava domes also occur. The latest two eruptions took place during the 11th century.

Wikipedia 요약

영어 요약

Hallasan (Korean: 한라산) is a shield volcano comprising much of Jeju Island in South Korea. Its summit, at 1,947 m (6,388 ft), is the highest point in the country. The area around the mountain is a designated national park, named Hallasan National Park. Hallasan is commonly considered to be one of the three main mountains of South Korea, along with Jirisan and Seoraksan.

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분화 이력

요약 (VEI 시계열)
막대를 클릭하면 개별 분화가 표시됩니다
2830 BCE~2638 BCE · 1건 · 최고 VEI ?2063 BCE~1871 BCE · 1건 · 최고 VEI ?815~1007 · 2건 · 최고 VEI ?2830 BCE1871 BCE911 BCE144 BCE815

상세 타임라인

  1. 1007년VEI ?관측 기록
    1007 ~ 진행 중
  2. 1002년VEI ?관측 기록
    1002 ~ 진행 중
  3. 기원전 2050년 (±200년)VEI ?지질학적 추정
    BCE 2050 ~ 진행 중
    SW flank (Songaksan tuff ring)
  4. 기원전 2830년 (±50년)VEI ?지질학적 추정
    BCE 2830 ~ 진행 중
    NE flank (Ilchulbong tuff cone)

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