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Fort Portal

Fort Portal Volcanic Field

Campo vulcanico · Uganda · 1615 m

These grass-covered tuff cones are among the many of the Fort Portal volcanic field in Uganda. The carbonatite lavas and tuffs were erupted from about 50 cones and maars, some of which now contain crater lakes.
These grass-covered tuff cones are among the many of the Fort Portal volcanic field in Uganda. The carbonatite lavas and tuffs were erupted from about 50 cones and maars, some of which now contain crater lakes. · Foto: Photo by Nelson Eby (University of Massachusetts).
Tipo
Campo vulcanico
Paese
Uganda
Regione
Eastern Africa Volcanic Regions / Albertine Rift Volcanic Province
Altitudine
1615 m
Coordinate
0.700, 30.250
Ultima eruzione
-2120
Contesto tettonico
Rift zone / Continental crust (> 25 km)
Forma vulcanica
Cluster
Roccia principale
Foidite
Sintesi geologica

The carbonatite lavas and tuffs of the Fort Portal Volcanic Field in Uganda, NE of Mount Ruwenzori between Lake Albert and Lake Edward, consists of a group of tuff cones and maars covering an area of about 145 km2. About 50 volcanic vents, some of which now contain crater lakes, were erupted through Precambrian gneiss in an WSW-ENE-trending area north of the town of Fort Portal. Several additional vents are located in the Kasekere (Rusekere) area to the NE. Radiocarbon dates of about 4,700-4,000 years ago were obtained from ash deposits in the volcanic field. Holmes (1950) noted that Kasensankaranga Crater in the Fort Portal area means "spewer of roasted material," implying observed activity.

Storia delle eruzioni

Riepilogo (VEI nel tempo)
Fai clic su una barra per vedere le singole eruzioni
2750 BCE~2687 BCE · 1 eruzioni · VEI max. ?2183 BCE~2120 BCE · 1 eruzioni · VEI max. ?2750 BCE2624 BCE2435 BCE2309 BCE2183 BCE

Cronologia dettagliata

  1. 2120 a.C. (±100 anni)VEI ?Stima geologica
    BCE 2120 – In corso
  2. 2750 a.C. (±75 anni)VEI ?Stima geologica
    BCE 2750 – In corso

Link esterni

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