Abstract
The 14-km-diameter Gweni-Fada structure was observed for the first time on Landsat images and aerial photography, and later visited on the ground by a French team, who reported that preliminary petrographic studies showed the presence of shock metamorphic effects in quartz grains from sandstones.
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Reference
Koeberl, C., Reimold, W. U., Vincent, P. M., & Brandt, D. (2005). Aorounga and Gweni Fada impact structures, Chad, Central Africa: Petrology and geochemistry of target. Meteoritics & Planetary Science, 40(9/10), 1455–1471.
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Di Martino, M., Coletta, A., Battagliere, M.L., Virelli, M. (2019). Gweni-Fada, Chad. In: Flamini, E., Di Martino, M., Coletta, A. (eds) Encyclopedic Atlas of Terrestrial Impact Craters. Springer, Cham. https://doi.org/10.1007/978-3-030-05451-9_12
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DOI: https://doi.org/10.1007/978-3-030-05451-9_12
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