Meidob Volcanic Field

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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 15.32°N
  • 26.47°E

  • 2000 m
    6560 ft

  • 225050
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Meidob Volcanic Field.

The Global Volcanism Program has no Weekly Reports available for Meidob Volcanic Field.

The Global Volcanism Program has no Bulletin Reports available for Meidob Volcanic Field.

The alkaline Meidob volcanic field in western Sudan, at the NE end of the Dafur volcanic province, covers an area of 5000 sq km with nearly 700 Pliocene-to-Holocene vents. The volcanic field was constructed over an uplifted Precambrian igneous and metamorphic basement and is elongated in an E-W direction. Basaltic scoria cones and associated lava flows dominate, but trachytic-phonolitic lava domes, tuff rings, and maars are among the youngest volcanic products. Basaltic scoria cones are scattered throughout the field; their lavas have produced a broad lava plateau. The central part of the field consists of younger phonolitic lava flows, trachytic pumice-fall deposits, ignimbrites, and maars. The youngest dated eruptions about 5000 years ago produced a tuff ring and a lava flow.

Summary of Holocene eruption dates and Volcanic Explosivity Indices (VEI).

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
2950 BCE ± 500 years Unknown Confirmed 0 Thermoluminescence Vent VF 214
3000 BCE (?) Unknown Confirmed 4 Tephrochronology Central Meidob volcanic field
3050 BCE (?) Unknown Confirmed 4 Tephrochronology SW crater of vent VF 57
4150 BCE ± 1450 years Unknown Confirmed 4 Tephrochronology Central Meidob volcanic field
5250 BCE ± 500 years Unknown Confirmed   Thermoluminescence Central Meidob volcanic field
6050 BCE ± 1600 years Unknown Confirmed 4 Thermoluminescence NE crater of vent VF 57

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.


Craters

Feature Name Feature Type Elevation Latitude Longitude
Katkatkono Crater 15° 21' 0" N 26° 29' 0" E
Malha Maar 15° 8' 0" N 26° 10' 0" E
The dark-colored area in the center of this Space Shuttle view is the alkaline Meidob volcanic field in western Sudan. This broad volcanic field covers an area of 5000 sq km with nearly 700 Pliocene-to-Holocene vents. The margins of the field are dominated by basaltic scoria cones and associated lava flows, but trachytic-phonolitic lava domes, tuff rings, and maars, concentrated along the central E-W-trending axis of the volcanic field, are among the youngest features. The latest dated eruptions took place about 5000 years ago.

NASA Space Shuttle image STS073-713-87, 1995 (http://eol.jsc.nasa.gov/).

The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title.

Almond D C, 1974. The composition of basaltic lavas from Bayuda, Sudan and their place in the Cainozoic volcanic history of north-east Africa. Bull Volc, 38: 345-360.

Franz G, Breitkreuz C, Coyle D A, Bushra El Hur, Heinrich W, Paulick H, Pudlo D, Smith R, Steiner G, 1997. The alkaline Meidob volcanic field (Late Cenozoic, northwest Sudan). J African Earth Sci, 25: 263-921.

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..

Paulick H, Franz G, 1997. The color of pumice: case study on a trachytic fall deposit, Meidob volcanic field, Sudan. Bull Volc, 59: 171-185.

Paulick H, Franz G, Urlacher G, Breitkreuz C, Smith R, Volker F, 1993. The alkaline Meidob volcanic field, Pliocene to Holocene, W Sudan. In:, Duggan M B, Knutson, J (eds) {IAVCEI abstracts; Ancient volcanism & modern}, Australia: Australian Geological Survey Organisation), p 84.

Volcano Types

Pyroclastic cone(s)
Lava dome(s)
Maar(s)

Tectonic Setting

Intraplate
Continental crust (> 25 km)

Rock Types

Major
Trachybasalt / Tephrite Basanite
Basalt / Picro-Basalt
Minor
Phonolite
Trachyte / Trachyandesite
Trachyandesite / Basaltic trachy-andesite

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
5,140
5,140
5,140
24,193

Affiliated Databases

Large Eruptions of Meidob Volcanic Field Information about large Quaternary eruptions (VEI >= 4) is cataloged in the Large Magnitude Explosive Volcanic Eruptions (LaMEVE) database of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).
WOVOdat WOVOdat is a database of volcanic unrest; instrumentally and visually recorded changes in seismicity, ground deformation, gas emission, and other parameters from their normal baselines. It is sponsored by the World Organization of Volcano Observatories (WOVO) and presently hosted at the Earth Observatory of Singapore.
EarthChem EarthChem develops and maintains databases, software, and services that support the preservation, discovery, access and analysis of geochemical data, and facilitate their integration with the broad array of other available earth science parameters. EarthChem is operated by a joint team of disciplinary scientists, data scientists, data managers and information technology developers who are part of the NSF-funded data facility Integrated Earth Data Applications (IEDA). IEDA is a collaborative effort of EarthChem and the Marine Geoscience Data System (MGDS).
Smithsonian Collections Search the Smithsonian's NMNH Department of Mineral Sciences collections database. Go to the "Search Rocks and Ores" tab and use the Volcano Name drop-down to find samples.