List of impact structures in Africa explained

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Confirmed impact structures

This list of impact structures in Africa includes all 20 confirmed impact craters as listed in the Earth Impact Database. These features were caused by the collision of large meteorites or comets with the Earth. For eroded or buried craters, the stated diameter typically refers to an estimate of original rim diameter, and may not correspond to present surface features.

NameLocationdata-sort-type=number Diameter
(km)
data-sort-type=number Age (years)Coordinates
Agoudal[1] Morocco3?data-sort-value=105000 105 ka?31.9833°N -35°W
AmguidAlgeria0.45data-sort-value=100000 < 100,000
AoroungaChad12.6data-sort-value=345000000< 345 million
AouelloulMauritania0.39data-sort-value=3000003.0 ± 0.3 million
BP StructureLibya2data-sort-value=120000000< 120 million
BosumtwiGhana10.5data-sort-value=10700001.07 million
Gweni-FadaChad14data-sort-value=345000000< 345 million
KalkkopSouth Africa0.64data-sort-value=2500000.25 million
KamilEgypt0.045data-sort-value=2000< 2000
KgagodiBotswana3.5data-sort-value=180000000< 180 million
LuiziDRC17data-sort-value=575000000< 575 million
MorokwengSouth Africa70data-sort-value=145000000145.0 ± 0.8 million
OasisLibya18data-sort-value=120000000< 120 million
OuarkzizAlgeria3.5data-sort-value=70000000< 70 million
Roter KammNamibia2.5data-sort-value=3000003.7 ± 0.3 million
TalemzaneAlgeria1.75data-sort-value=3000000< 3 million
TenoumerMauritania1.9data-sort-value=15700001.57 ± 0.14 million
Tin BiderAlgeria6data-sort-value=70000000< 70 million
Tswaing
(previously Pretoria Saltpan)
South Africa1.13data-sort-value=2200000.220 ± 0.052 million
VredefortSouth Africa300data-sort-value=20230000002023 ± 4 million

Unconfirmed impact structures

See main article: article and List of possible impact structures on Earth.

The following craters are officially considered "unconfirmed" because they are not listed in the Earth Impact Database. Due to stringent requirements regarding evidence and peer-reviewed publication, newly discovered craters or those with difficulty collecting evidence generally are known for some time before becoming listed. However, entries on the unconfirmed list could still have an impact origin disproven.

NameLocationDiameterAgeCoordinates
KebiraGilf Kebir region, Egypt31 km100 million
Temimichat[2] Mauritania0.75 kmunknown
Wembo-Nyama ring structure[3] [4] DR Congo36–46 km (est.)60 million
Mahas[5] Northern, Sudan2.85 kmUnknown
Circular feature with clear ca. rim 300 m above ground level centred around the hamlet of BawBlue Nile State5 kmUnknown
Circular Feature [6] North-Central Niger10 kmUnknown21°21′14.56″N 9° 8′32.24″E
Vélingara circular structure[7] Kolda Region, Senegal48 kmUnknown

Notes

Mahas was anonymously added Jan 2015, but the coordinates do show a convincing impact-like structure.

It appears to me there is also an impact crater several miles in diameter, approximately 40-45 miles to the SE of Tete, Mozambique. But this only based from an aerial inspection from Google Earth and not from any ground inspection or geological verification.

See also

External links

Notes and References

  1. CHENNAOUI AOUDJEHANE, H., EL KERNI, H., REIMOLD, W., BARATOUX, D., KOEBERL, C., BOULEY, S., and AOUDJEHANE, M. (2016). "The Agoudal (High Atlas Mountains, Morocco) shatter cone conundrum: A recent meteorite fall onto the remnant of an impact site". Meteoritics & Planetary Science, pp.1-22, 2016.
  2. New Evidences of an Impact Origin for Temimichat Crater, Mauritania . Lunar and Planetary Institute . Lunar and Planetary Science . XXXIV . 1882 . 2003 . A. P. Rossi . A. Baliva . E. Piluso . amp . 2003LPI....34.1882R .
  3. The Ring Structure of Wembo-Nyama (Eastern Kasai, R.D. Congo): A Possible Impact Crater in Central Africa . Lunar and Planetary Institute . Lunar and Planetary Science . XLI . 1533 . 1601 . 2010 . G. Monegato . M. Massironi . E. Martellato . amp . 2010LPI....41.1601M .
  4. News: Ring may be giant 'impact crater' . BBC News . 2010-03-10 . 2010-05-08.
  5. https://www.technologyreview.com/s/420182/new-desert-crater-found-using-google-maps-and-free-software/ New Desert Crater Found Using Google Maps and Free Software
  6. Lobpries. Trey A.. Lapen. Thomas J.. October 2018. Remote sensing evidence for a possible 10 kilometer in diameter impact structure in north-central Niger. Journal of African Earth Sciences. 150. 673–684. 10.1016/j.jafrearsci.2018.09.020. 134091686 . 1464-343X.
  7. S. Wade, M. Barbieri, J. Lichtenegger (2001) The Velingara Circular Structure Esa Bulletin June 2001