| Back | World Map | North America | South America | Europe | Asia & Russia | Africa | Australia |

Earth Impact Database Sorted by : | Name | Diameter | Age |

 

Tswaing

Crater Name
Location
Latitude
Longitude
Diameter (km)
Age (Ma)*
Exposed
Drilled
Target Rock**
Bolide Type***
Tswaing (formerly Pretoria Saltpan)
South Africa
S 25° 24'
E 28° 5'
1.13
0.220 ± 0.052
Y
Y
C
Chondrite

 

View from the rim - Photo submitted by Greg Boyce

View from crater bottom - Photo submitted by Greg Boyce

Topographic map, 20 m contour interval

Landsat image. Crater near top left (Pretoria at bottom).
Photo submitted by Greg Boyce

Photograph

Photograph

Photograph

DEM image Provided by Dr. Carlos Roberto de Souza Filho

Image Provided by Dr. Carlos Roberto de Souza Filho

Image Provided by Dr. Carlos Roberto de Souza Filho

References
Brandt, D., Durrheim, R.J. and Reimold,W.U., Geophysical signature of the Pretoria Saltpan impact structure and a possible satellite crater (abstract). Lunar and Planetary Science XXIV, pp. 181-182. 1993.
Brandt, D., Reimold, W. U., A structural and petrographic investigation of the Pretoria Saltpan impact structure (abstract). Lunar and Planetary Science XXIV, pp. 179-180. 1993.
Brandt, D., Reimold, W. U., The geology of the Pretoria Saltpan impact structure and the surrounding area. S. Afr. J. Geol., v. 98, pp. 287-303. 1995.
Brandt, D., Reimold, W. U., The petrology of the igneous rocks occurring in the Pretoria Saltpan impact crater and surrounding area. S. Afr. J. Geol., v. 98, pp. 304-318. 1995.
Brandt, D., Reimold, W.U. and Durrheim,R.J., Geophysical signature of the Pretoria Saltpan impact structure and a possible satellite crater. Meteoritics, v. 29, pp. 379-384. 1994.
Brandt, D., Reimold, W.U. and Smith,C.B., New Rb-Sr ages for igneous rocks from the area of the Pretoria Saltpan impact crater. S. Afr. J. Geol., v. 99, pp. 293-297. 1996.
Brandt, D., Reimold, W.U. and Smith,C.B., New Rb-Sr ages for igneous rocks from the area of the Pretoria Saltpan impact crater. S. Afr. J. Geol., v. 99, pp. 293-297. 1996.
Brandt, D., Reimold, W.U. and Smith,C.B., Rb-Sr dating of alkaline and mafic intrusives from the Pretoria Saltpan impact crater and environs (abstract). Lunar and Planetary Science XXV, pp. 161-162. 1994.
Brandt, D., The Tswaing Crater: One of the World's Best Preserved and Museums Plans for the Site, Meteoritics; vol. 34, No. 4, Supp. p. A17. 1999.
Cockell, C. S., Lee, P., The Biology of Impact Craters - a review. Biol. Rev., 77, P. 279 - 310. 2002.
de Jong R.C., Reimold, W. U., The Tswaing crater museum: Developing the Pretoria Saltpan impact crater into an enviromuseum (abstract). Meteoritics & Planetary Science, v. 31, pp. A35-A36. 1996.
de Jong, R. C., Developing the Pretoria Saltpan Impact Crater into the Tswaing Crater Museum, Meteoritics; vol. 34, No. 4, Supp. p. A32. 1999.
Fudali, R. F., Gold, D.P. and Gurney,J.J., The Pretoria Salt Pan: Astrobleme or cryptovolcano? Journal of Geology, v. 81, pp. 495-507. 1973.
Grieve, R. A. F., Pretoria Saltpan: From volcanic to impact in 200,000 years. Meteoritics, From the Editors, v. 29, pp. 297-298. 1994.
Jourdan, F., Renne, P.R. and Reimold, W.U., Considerations in dating impact craters using the 40Ar/39Ar method: The problem of inherited 40Ar, Goldschmidt Conference Abstracts 2007., pp. A452, 2007.
Jourdan, F., Renne, P.R. and Reimold, W.U., The problem of inherited 40Ar in dating impact glass by the 40Ar/39Ar method: Evidence from the Tswaing impact crater (South Africa), Geochimica et Cosmochimica Acta, v. 71, pp. 1214-1231. 2007.
Koeberl, C., African meteorite impact craters: Characteristics and geological importance. Journal of African Sciences, v. 18, pp. 263-295. 1994.
Koeberl, C., An Impact Crater for the People: The Tswaing (Saltpan) Crater, South Africa, Meteoritics; vol. 34, p. 827-8. 1999.
Koeberl, C., Milkereit, B., Continental Drilling and the Study of Impact Craters and Processes - an ICDP Perspective, In: Continental Scientific Drilling (eds. Harms, U., Koeberl, C., and Zoback, M.D.), Springer, Heidelberg, p. 95-161. 2007.
Koeberl, C., Reimold, W.U. and Shirley,S.B., Saltpan impact crater, South Africa: Geochemistry of target rocks, breccias, and impact glasses, and osmium isotope systematics. Geochimica et Cosmochimica Acta, v. 58, pp. 2893-2910. 1994.
Koeberl, C., Storzer, D. and Rieimold,W.U., The age of the Saltpan impact crater, South Africa. Meteoritics, v. 29, pp. 374-379. 1994.
Levin, G., Our Feature: The Pretoria Saltpan - The Historical Aspects. Geobulletin, v. 34, pp. 13-16. 1991.
McCaffery L.P., Harris, C., Hydrological impact of the Pretoria Saltpan crater, South Africa. Journal of African Earth Sciences, v. 23, pp. 205-212. 1996.
Milton, D. J., Naeser, C. W., Evidence for an impact origin of the Pretoria Salt Pan, South Africa. Nature Physical Science, v. 229, pp. 211-212. 1971.
Partridge, T. C., Reimold, W.U., Kerr, S.J. and Stanistreet,I.G., Our Feature: The Pretoria Saltpan - the Scientific Aspects. Geobulletin, v. 34, pp. 16-22. 1991.
Partridge, T., Reimold, W.U. and Walraven,F., The Pretoria Zoutpan crater: First results from the 1988 drilling project (abstract). Meteoritics, v. 25, p. 396. 1990.
Reimold, W. U., Impact cratering - a review, with special reference to the economic importance of impacat structures and the southern African impact crater record. Earth, Moon and Planets, v. 70, pp. 21-45. 1995.
Reimold, W. U., Koeberl, C., Kerr, S.J. and Partridge,T.C., The Pretoria Saltpan - The first firm evidence for an origin by impact (abstract). Lunar and Planetary Science XXII, pp. 1117-1118. 1991.
Reimold, W. U., Koeberl, C., Partridge, T.C. and Kerr,S.J., Pretoria Saltpan crater: Impact origin confirmed. Geology, v. 20, pp. 1079-1082. 1992.
Reimold, W. U., Koeberl, C., Pretoria Saltpan impact crater: Impact glasses and sulphide spherules (abstract). Lunar and Planetary Science XXIII, pp. 1139-1140. 1992.
Storzer, D., Koeberl, C. and Reimold,W.U., The age of the Pretoria Saltpan impact crater, South Africa (abstract). Lunar and Planetary Science XXIV, pp. 1365-1366. 1993.

 

* pre-1977 K-Ar, Ar-Ar and Rb-Sr ages recalculated using the decay constants of Steiger and Jager (1977) Ages in millions of years (Ma) before present.

** Abbreviations: C - Crystalline Target; C-Ms - Metasedimentary Target; M - Mixed Target (i.e.sedimentary strata overlying crystalline basement); S - sedimentary target (i.e. no crystalline rocks affected by the impact event). From Osinski. G. R., Spray J. G., and Grieve R. A. F. 2007. Impact melting in sedimentary target rocks: A synthesis. In The Sedimentary Record of Meteorite Impacts, Geological Society of America Special Paper. Editors: Evans K. Horton W., King D., Morrow J., and Warme J. Geological Society of America: Boulder, in press.

***
From Koeberl,C. Identification of meteoritic components in impactites. 1998, Koeberl, C. The Geochemistry and Cosmochemistry of Impacts. 2007 and PASSC Files. (IAB, IIIAB, IIIB, IIID - Iron Meteorite)

 

 

PASSC Director: John Spray
Data Manager: Data Manager

Site developed and maintained by the
Planetary and Space Science Centre
University of New Brunswick
Fredericton, New Brunswick, Canada
Contact PASSC