By ExploreNow Editor, on May 16th, 2012%
Volcano Type: Scoria cones
Volcano Status: Holocene
Last Known Eruption: Unknown
Summit Elevation: 2918 m 9,573 feet
Latitude: 23.33°N * 23°20’0″N
Longitude: 5.83°E 5°50’0″E
The massive Atakor volcanic field is the largest in the Hoggar (or Ahaggar) volcanic province of southern Algeria and covers an area of 2150 sq km. Basaltic (mostly basanitic) scoria cones and lava flows of Pleistocene-Holocene age lie near spectacular older trachytic and phonolitic lava domes and volcanic necks that form some of the most dramatic scenery of northern Africa. The latest stage of activity began around 1.95 million years and continued almost to the present.
Lava flows cover Holocene lake sediments dated at about 10,000 year Before Present (BP) and alluvial terraces in which Neolithic artifacts have been found. Historical pottery has been found within lava flows in the Tahifet area, and oral traditions of the Tuareg people also suggest that eruptions were witnessed. Sporadic fumaroles and persistent small-scale seismicity has been noted during historical time.
Originally posted 2010-11-11 03:21:50.
By ExploreNow Editor, on April 16th, 2012%
Volcano Type: Volcanic field
Volcano Status: Holocene
Last Known Eruption: Unknown
Summit Elevation: Unknown
Latitude: 23.00°N * 23°0’0″N
Longitude: 10.83°E 10°50’0″E
The In Ezzane volcanic field lies in SE Algeria, near the border with Niger. The alkaline In Ezzane volcanic field, part of which extends into Niger, covers about 500 sq km at the eastern end of Hoggar (Ahaggar) volcanic province and was assigned a Recent age (Liegeois et al., 2005). This poorly known and isolated volcanic field erupted through basement rocks at the western end of the Saharan meta-craton.
Originally posted 2010-11-12 04:42:05.
By ExploreNow Editor, on February 23rd, 2012%
Volcano Type: Pyroclastic cones
Volcano Status: Holocene
Last Known Eruption: Unknown
Summit Elevation: 1467 m 4,813 feet
Latitude: 22.67°N * 22°40’0″N
Longitude: 5.00°E 5°0’0″E
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.
Originally posted 2010-11-11 04:25:45.
By ExploreNow Editor, on January 30th, 2012%
Volcano Type: Scoria cones
Volcano Status: Holocene
Last Known Eruption: Unknown
Summit Elevation: 1672 m 5,485 feet
Latitude: 23.92°N * 23°55’0″N
Longitude: 5.83°E 5°50’0″E
The Manzaz volcanic field, north of the Atakor volcanic field in the Hoggar (Ahaggar) volcanic district of Algeria, consists of a large number of scoria cones and associated lava flows. The volcanic field covers an area of 1500 sq km, overlying Precambrian metamorphic and plutonic rocks of the Tuareg shield. Many cones are breached, and the dominantly basaltic and basanitic volcanic products are rich in peridotite and pyroxenite xenoliths and megacrysts. The youngest volcanoes rest on Neolithic terraces and are of Holocene age.
Originally posted 2010-11-10 04:25:45.
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