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Mono Lake Volcanic Field

Medan gunung api · United States · 2121 m

Negit (right-center) and Paoha (far right) islands in Mono Lake are seen from Black Point, a basaltic cone on the NW shore of the lake. The most recent eruptive activity from the Mono Lakes volcanic field took place 100-230 years ago, when lake-bottom sediments forming much of Paoha Island were uplifted by intrusion of a rhyolitic cryptodome. Black Point is an initially sublacustral cone that formed about 13,300 years ago when the lake was higher. The White Mountains form the far right horizon.
Negit (right-center) and Paoha (far right) islands in Mono Lake are seen from Black Point, a basaltic cone on the NW shore of the lake. The most recent eruptive activity from the Mono Lakes volcanic field took place 100-230 years ago, when lake-bottom sediments forming much of Paoha Island were uplifted by intrusion of a rhyolitic cryptodome. Black Point is an initially sublacustral cone that formed about 13,300 years ago when the lake was higher. The White Mountains form the far right horizon. · Foto: Photo by Lee Siebert, 1997 (Smithsonian Institution). · Wikimedia Commons
Tipe
Medan gunung api
Negara
United States
Wilayah
North America Volcanic Regions / Basin and Range Volcanic Province
Ketinggian
2121 m
Koordinat
38.000, -119.030
Letusan terakhir
1790
Kondisi tektonik
Rift zone / Continental crust (> 25 km)
Bentuk lahan
Cluster
Batuan utama
Dacite
Ringkasan geologi

The Mono Lake volcanic field east of Yosemite National Park and north of the Mono Craters consists of vents within Mono Lake and on its north shore. The most topographically prominent feature, Black Point, is an initially sublacustral basaltic cone that rises above the NW shore and was formed about 13,300 years ago when Mono Lake was higher. Holocene rhyodacitic lava domes and flows form Negit and parts of Paoha islands off the northern shore and center of the lake, respectively. The most recent eruptive activity in the Long Valley to Mono Lake region took place 100-230 years ago, when lake-bottom sediments forming much of Paoha Island were uplifted by intrusion of a rhyolitic cryptodome (Stine, in Bailey et al., 1989). Spectacular tufa towers line the shores of Mono Lake.

Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu
350~504 · 1 letusan · VEI maks. ?1120~1274 · 1 letusan · VEI maks. ?1428~1582 · 1 letusan · VEI maks. ?1736~1890 · 2 letusan · VEI maks. ?350658112014281736

Garis waktu rinci

  1. 1890VEI ?Perkiraan geologi
    1890-08-23 – 1890-08-23
  2. 1790 (±75 tahun)VEI ?Perkiraan geologi
    1790 – Berlangsung
    Paoha Island
  3. 1550 (±300 tahun)VEI ?Perkiraan geologi
    1550 – Berlangsung
    Negit Island
  4. 1150 (±200 tahun)VEI ?Perkiraan geologi
    1150 – Berlangsung
    Paoha Island
  5. 350 (±100 tahun)VEI ?Perkiraan geologi
    350 – Berlangsung

Tautan eksternal

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