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Random pictures

Tahalra Volcanic Field volcano

Pyroclastic cones 1467 m / 4,813 ft
Algeria, 22.67°N / 5°E
Current status: normal or dormant (1 out of 5) | Reports
Tahalra Volcanic Field volcano books
Last update: 4 Jun 2016 (2 km deep volcanic earthquake on 14 february)
Typical eruption style: unspecified
Tahalra Volcanic Field volcano eruptions: unknown, no recent eruptions No recent earthquakes
TimeMag. / DepthDistanceLocation

Background:

The elongated, E-W-trending Tahalra volcanic field covers an area of about 1800 sq km in the Hoggar Province of southern Algeria. The large volcanic field lies WSW of the town of Tamanrasset and was active from the Miocene to the Holocene, producing alkaline strombolian cones and lava flows. The high point of the volcanic field, which was constructed over a basement of Precambrian metamorphic and plutonic rocks of the Tuareg shield, lies near its eastern end. A dozen trachytic-to-rhyolitic lava domes and spines formed during the Pliocene, and Pliocene-to Pleistocene activity formed about 100 small strombolian basaltic (mostly basanitic) cones. The most recent activity during the Pleistocene and Holocene produced about 20 maars and cones along the northern margin of the volcanic field.
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Smithsonian / GVP volcano information


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