In Ezzane Volcanic Field

Observations of Deformation

Volcano number:225003
Geodetic measurements?No
Measurement method(s):No measurements
Characteristics of deformation:

The In Ezzane volcanic province: Straddling the Algeria – Niger border, a 500-km2 plateau is made up of a stacking of 5 to 10 m-thick olivine basanite flood lavas overlying Ordovician Tassili sandstones. Strom- bolian cones fed the flood lavas. An uppermost lava flow yields a 2.01 ± 0.05 Ma (Gelasian) K-Ar age. The basal surface on which lavas have flowed is only slight- ly reddened, pointing to aerial eruptions in fairly dry environment (Bonin et al., 2011)

Reference(s):Bonin, B., et al. "Possible impact craters within the In Ezzane Quaternary volcanic province, Eastern Hoggar, Algeria." Abstract, 2nd Arab Impact Cratering and Astrogeology Conference (AICAC II), Hassan II Casablanca University, Casablanca, Morocco. 2011.
Yahiaoui, R., Dautria, J. M., Alard, O., Bosch, D., Azzouni-Sekkal, A., & Bodinier, J. L. (2014). A volcanic district between the Hoggar uplift and the Tenere Rifts: Volcanology, geochemistry and age of the In-Ezzane lavas (Algerian Sahara). Journal of African Earth Sciences, 92, 14-20.
Location:23, 10.83
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