Mount Taishaku

Omanago Group

Duomo di lava · Japan · 2341 m

The Omanago volcano group (upper left) consists of a series of five lava domes in Nikko National Park. The highest dome is Omanago, located at the SE end of the complex. Mitsudake is the NW-most dome. The higher northern peak of the Mitsudake complex is out of view to the left, and the lower southern dome forms the low ridge behind the hot spring resort of Yunoko lake in the center of the photo. The peak on the right horizon is Nantaisan. · Foto: Photo by Lee Siebert, 1964 (Smithsonian Institution). · Wikimedia Commons

Tipo: Duomo di lava
Paese: Japan
Regione: Northwestern Pacific Volcanic Regions / Northeast Japan Volcanic Arc
Altitudine: 2341 m
Coordinate: 36.807, 139.476
Ultima eruzione: -3050
Contesto tettonico: Subduction zone / Continental crust (> 25 km)
Forma vulcanica: Cluster
Roccia principale: Dacite

Sintesi geologica

The Omanago volcano group consists of a series of five closely spaced lava domes that were constructed north and NW of Nantai volcano in Nikko National Park. The highest of the dacitic domes is Omanago, which later erupted andesitic lavas. The Mitsudake dome, which overlooks the hot spring resort of Lake Yunoko, was radiocarbon dated at about 5,000 years ago. Mitsudake was constructed on a southerly dipping slope, so that the southern of its two flat-topped domes is lower, and is overlapped by sediments of the Senjogahara plain.

Storia delle eruzioni

Riepilogo (VEI nel tempo)

Fai clic su una barra per vedere le singole eruzioni

Cronologia dettagliata

3050 a.C.VEI ?Stima geologica
BCE 3050 – In corso
Mitsu-dake

Link esterni

Non ancora su Wikipedia (Italiano). Puoi contribuire su Wikidata.
🔗 Pagina originale Smithsonian GVP

⚠ Solo a scopo informativo. Non adatto a situazioni di emergenza.