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Hallasan

Halla

Volcán en escudo · South Korea · 1919 m

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. · Foto: Photo by Norm Banks, 1980 (U.S. Geological Survey). · Wikimedia Commons
Tipo
Volcán en escudo
País
South Korea
Región
Eastern Asia Volcanic Regions / Central East Asia Volcanic Province
Altitud
1919 m
Coordenadas
33.361, 126.530
Última erupción
1007
Contexto tectónico
Intraplate / Continental crust (> 25 km)
Forma volcánica
Shield
Roca principal
Basalt / Picro-Basalt
Resumen geológico

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.

Resumen de Wikipedia

Hallasan es un volcán en escudo en la Isla de Jeju en el país asiático de Corea del Sur. Hallasan es la montaña más alta de Corea del Sur. El área alrededor de la montaña fue declarada parque nacional, con la denominación de "Parque Nacional Hallasan". Hallasan es comúnmente considerado como una de las tres principales montañas de Corea del Sur, siendo Jirisan y Seoraksan las otras dos. Hallasan es un volcán en escudo masivo que forma la mayor parte de la isla de Jeju y es considerado a menudo como si representara la propia isla. Hay un dicho local, que afirma que "la isla de Jeju es Hallasan, y es Hallasan de Jeju".

Wikipedia · CC BY-SA · Leer artículo completo →

Historial de erupciones

Resumen (VEI en el tiempo)
Haga clic en una barra para ver erupciones individuales
2830 BCE~2638 BCE · 1 erupciones · VEI máx. ?2063 BCE~1871 BCE · 1 erupciones · VEI máx. ?815~1007 · 2 erupciones · VEI máx. ?2830 BCE1871 BCE911 BCE144 BCE815

Línea de tiempo detallada

  1. 1007VEI ?Observado
    1007 – En curso
  2. 1002VEI ?Observado
    1002 – En curso
  3. 2050 a. C. (±200 años)VEI ?Estimación geológica
    BCE 2050 – En curso
    SW flank (Songaksan tuff ring)
  4. 2830 a. C. (±50 años)VEI ?Estimación geológica
    BCE 2830 – En curso
    NE flank (Ilchulbong tuff cone)

Enlaces externos

⚠ Solo como referencia. No apto para respuesta ante emergencias.