Are diamictites impact ejecta? - No supporting evidence from South African dwyka group diamictite

Journal of Geology

Volumn 105, Issue 5, 1997, Pages 517-530

  Reimold, Wolf Uwe ^a   Von Brunn, Victor ^a,b   Koeberl, Christian ^a,c  

^a UNIVERSITY OF THE WITWATERSRAND   (South Africa)

^b UNIVERSITY OF KWAZULU NATAL   (South Africa)

^c UNIVERSITY OF VIENNA   (Austria)

Author keywords

[No Author keywords available]

Indexed keywords

COMET; DIAMICTITES; IMPACT EJECTA; METEORITE;

SOUTH AFRICA;

EID: 0031399718     PISSN: 00221376     EISSN: None     Source Type: Journal    
DOI: 10.1086/515952     Document Type: Article

References (65)

1. Alexopoulos, J. S.; Grieve, R. A. F.; and Robertson, P. B., 1988, Microscopic lamellar characteristics of shockgenerated varieties: Geology, v. 16, p. 796-799.
2. Bates, R. L., and Jackson, J. A., eds., 1987, Glossary of Geology: Alexandria, Va., Am. Geol. Inst., 788 p.
3. Boggs, S., Jr., 1987, Principles of Sedimentology and Stratigraphy: Columbus, Merrill Pub., 784 p.
4. Buchanan, P. C., and Reimold, W. U., 1996, Analysis of deformation lamellae in quartz grains from the Rooiberg Felsite, Bushveld Complex, South Africa, and associated rocks: Lunar Planet. Sci., v. 27, p. 175-176.
5. Byerly, G. R., and Lowe, D. R., 1994, Spinel from Archean impact spherules: Geochim. Cosmochim. Acta, v. 58, p. 3469-3486.
6. Claeys, P., and Casier, J.-G., 1994, Microtektite-like impact glass associated with the Frasnian-Famennian boundary mass extinction: Earth Planet. Sci. Lett., v. 122, p. 303-315.
7. _; Casier, J.-G.; and Margolis, S. V., 1992, Microtektite and mass extinctions: Evidence for a Late Devonian asteroid impact: Science, v. 257, p. 1102-1104.
8. Clymer, A. K.; Bice, D. M.; and Montanari, A., 1996, Shocked quartz from the late Eocene: Impact evidence from Massignano, Italy: Geology, v. 24, p. 483-486.
9. Dressier, B. O.; Grieve, R. A. F.; and Sharpton, V. L., eds., 1994, Large meteorite impacts and planetary evolution: Geol. Soc. America Spec. Paper, 293, 348 p.
10. Engelhardt, W. v., 1990, Distribution, petrography and shock metamorphism of the ejecta of the Ries crater in Germany - a review: Tectonophysics, v. 171, p. 259-273.
11. _; Arndt, J.; Fecker, B.; and Pankau, H. G., 1995, Suevite breccia from the Ries crater, Germany: Origin, cooling history, and devitrification of impact glasses: Meteoritics, v. 30, p. 279-293.
12. Eyles, C. H., and Eyles, N., 1983, Glaciomarine model for upper Precambrian diamictites of the Port Askaig Formation, Scotland: Geology, v. 11, p. 692-694.
13. Flint, R. F.; Sanders, J. E.; and Rodgers, J., 1960, Diamictite, a substitute term for symmictite: Geol. Soc. America Bull., v. 71, p. 1809.
14. French, B. M., 1990, Absence of shock-metamorphic effects in the Bushveld Complex, South Africa: Results of an intensive search: Tectonophysics, v. 171, p. 287-301.
15. Glikson, A. Y., 1993, Asteroids and early Precambrian crustal evolution: Earth-Sci. Rev., v. 35, p. 285-319.
16. Gostin, V. A.; Haines, P. W.; Jenkins, R. J. F.; Compston, W.; and Williams, I. S., 1986, Impact ejecta horizon within late Precambrian shales, Adelaide Geosyncline, south Australia: Science, v. 233, p. 198-200.
17. Gravenor, C. P., and von Brunn, V., 1987, Aspects of Late Paleozoic glacial sedimentation in parts of the Parana Basin, Brazil, and the Karoo Basin, South Africa, with special reference to the origin of massive diamictite, in McKenzie, G. D., ed., Gondwana Six: Stratigraphy, Sedimentology and Paleontology: Washington, Am. Geophys. Union Geophys. Mon. 41, p. 103-111.
18. Grieve, R. A. F.; Langenhorst, F.; and Stöffler, D., 1996, Shock metamorphism of quartz in nature and experiment: II. Significance in geoscience: Meteoritics Planet. Sci., v. 31, p. 6-35.
19. _; Rupert, T.; Smith, J.; and Therriault, A. M., 1995, The record of terrestrial impact cratering: GSA Today, v. 5, p. 193-196.
20. Halbich, I. W., 1983, Tectonogenesis of the Cape Fold Belt (CFB), in Söhnge, A. P. G., and Halbich, I. W., eds., Geodynamics of the Cape Fold Belt: Geol. Soc. South Africa Spec. Pub. 12, p. 165-175.
21. Hassler, S. W., and Simonson, B. M., 1995, Depositional history of a resedimented impact layer in the Early Precambrian Hamersley Group, Western Australia, in Montanari, A., and Coccioni, R., eds., Abstracts, The Effects of Impacts on the Atmosphere and Biosphere with Regard to Short- and Long-Term Changes: 4th Int. Workshop ESF Sci. Network on Impact Cratering and Evolution of Planet Earth (Ancona, May 1995), p. 88-89.
22. Hörz, F.; Bunch, T. E.; and Oberbeck, V. R., 1994, Shocked material from the Dutch Peak diamictite, Utah: Lunar Planet. Sci., v. 25, p. 565-566.
23. Huffman, A. R., and Reimold, W. U., 1996, Experimental constraints on shock-induced microstructures in naturally deformed silicates: Tectonophysics, v. 256, p. 165-217.
24. Joreau, P.; Reimold, W. U.; Robb, L. J.; and Doukhan, J.-C., 1997, A TEM study of deformed quartz grains from volcaniclastic sediments associated with the Bushveld Complex, South Africa: Eur. Jour. Miner., no. 2/1997 (March 1997), in press.
25. Koeberl, C., 1996, Chicxulub-The K-T boundary impact crater: A review of the evidence, and an introduction to impact crater studies: Abh. Geol. Bundesanstalt, Wien, v. 53, p. 23-50.
26. _; Poag, C. W.; Reimold, W. U.; and Brandt, D., 1996a, Impact origin of Chesapeake Bay structure and the source of North American tektites: Science, v. 271, p. 1263-1266.
27. _, and Reimold, W. U., 1995a, Early Archean spherule beds in the Barberton Mountain Land, South Africa: No evidence for impact origin: Precamb. Res., v. 74, p. 1-33.
28. _, and _, 1995b, The Newporte impact structure, North Dakota: Geochim. Cosmochim. Acta, v. 59, p. 4747-4767.
29. _; _; and Boer, R. H., 1993, Geochemistry and mineralogy of Early Archean spherule beds, Barberton Mountain Land, South Africa: Evidence for origin by impact doubtful: Earth Planet. Sci. Lett., v. 119, p. 441-452.
30. _; _; and Brandt, D., 1996b, Red Wing Creek Structure, North Dakota: Petrological and geochemical studies, and confirmation of impact origin: Meteoritics Planet. Sci., v. 31, p. 335-342.
31. Kring, D. A., 1993, The Chicxulub impact event and possible causes of K/T boundary extinctions, in Boaz, D., and Dornan, M., eds., Proceedings of the First Annual Symposium of Fossils of Arizona: Mesa, AZ, Mesa Southwest Museum and Southwest Paleont. Soc., p. 63-79.
32. Langenhorst, F., 1996, Characteristics of shocked quartz in late Eocene impact ejecta from Massignano (Ancona, Italy): Clues to shock conditions and source crater: Geology, v. 24, p. 487-490.
33. Le Roux, J. P., 1994, Impacts, tillites, and the breakup of Gondwanaland: A second discussion: Jour. Geology, v. 102, p. 483-485.
34. Leroux, H.; Reimold, W. U.; and Doukhan, J.-C., 1994, A TEM investigation of shock metamorphism in quartz from the Vredefort Dome, South Africa: Tectonophysics, v. 230, p. 223-239.
35. Lowe, D. R., and Byerly, G. R., 1986, Early Archean silicate spherules of probable impact origin, South Africa and Western Australia: Geology, v. 14, p. 83-86.
36. Melosh, H. J., 1989, Impact Cratering, A Geologic Process: New York, Oxford Univ. Press, 245 p.
37. Oberbeck, V. R.; Marshall, J. R.; and Aggarwal, H., 1993a, Impacts, tillites, and the breakup of Gondwanaland: Jour. Geology, v. 101, p. 1-19.
38. _; _; and _, 1993b, Impacts, tillites, and the breakup of Gondwanaland: A Reply: Jour. Geology, v. 101, p. 679-683.
39. _; Hörz, F.; and Bunch, T. E., 1994, Impacts, tillites, and the breakup of Gondwanaland: A second reply: Jour. Geology, v. 102, p. 485-489.
40. Ocampo, A. C.; Pope, K. O.; and Fischer, A. G., 1996, Ejecta blanket deposits of the Chicxulub crater from Albion Island, Belize, in Ryder, G.; Fastovsky, D.; and Gartner, S., eds., The Cretaceous-Tertiary event and other catastrophes in Earth history: Boulder, Col., Geol. Soc. America Spec. Paper 307, p. 75-88.
41. Pesonen, L. J., 1996, The impact cratering record of Fennoscandia: Earth, Moon, and Planets, v. 72, p. 377-393.
42. Rampino, M. R., 1992, Ancient "glacial" deposits are ejecta of large impacts: The Ice Age paradox explained (Abs): EOS - Trans. Am. Geophys. Union, Suppl., p. 99.
43. _, 1994, Tillites, diamictites, and ballistic ejecta of large impacts: Jour. Geology, v. 102, p. 439-456.
44. Reimold, W. U., 1990, The controversial microdeformations in quartz from the Vredefort structure, South Africa: South Afr. Jour. Geol., v. 93, 645-663.
45. _, 1996, Impact cratering - A review, with special reference to the economic importance of impact structures and the Southern African impact crater record: Earth, Moon, and Planets, v. 70, p. 21-45.
46. _, and Gibson, R. L., 1996, Geology and evolution of the Vredefort impact structure, South Africa: Jour. Afr. Earth Sci., v. 23, p. 125-167.
47. _; Koeberl, C.; Partridge, T. C.; and Kerr, S. J., 1992, Pretoria Saltpan Crater: Impact origin confirmed: Geology, v. 20, p. 1079-1082.
48. SACS (The South African Committee for Stratigraphy), 1980, Stratigraphy of South Africa, Handbook 8. Part 1: Lithostratigraphy of the Republic of South Africa, South West Africa/Namibia and the Republics of Bophutatswana, Transkei and Venda: Pretoria, Gov. Printer, 690 p.
49. Schmitz, B.; Jeppson, L., and Ekvall, J., 1994, A search for shocked quartz grains and impact ejecta in early Silurian sediments on Gotland, Sweden: Geol. Mag., v. 131, 361-367.
50. Sharpton, V. L., and Ward, P. D., eds., 1990, Global catastrophes in Earth history: Geol. Soc. America Spec. Paper 247, 631 p.
51. Silver, L. T., and Schultz, P. H., eds., 1982, Geological implications of impacts of large asteroids and comets on the Earth: Geol. Soc. America Spec. Paper 190, 529 p.
52. Simonson, B. M., and Davies, D., 1996, PGEs and quartz grains in a resedimented late Archean impact horizon in the Hamersley Group of Western Australia: Lunar Planet. Sci., v. 27, p. 1203-1204.
53. Stöffler, D., 1972, Deformation and transformation of rock-forming minerals by natural and experimental shock processes. I. Behavior of minerals under shock compression: Fortschr. Miner., v. 49, p. 50-113.
54. _, and Grieve, R. A. F., 1996, IUGS Classification and nomenclature of impact metamorphic rocks: Towards a final proposal, in Drobne, K.; Gorican, S.; and Kotnik, B., eds., The Role of Impact Processes in the Geological and Biological Evolution of Planet Earth: Int. Workshop (Postojna, Slovenia), p. 89-90.
55. _, and Langenhorst, F., 1994, Shock metamorphism of quartz in nature and experiment: I. Basic observation and theory: Meteoritics, v. 29, p. 155-181.
56. Taylor, S. R., 1992, Solar System Evolution - A New Perspective: New York, Cambridge Univ. Press, 307 p.
57. Thomas, R. J.; von Veh, M. W.; and McCourt, S., 1993, The tectonic evolution of southern Africa: An overview: Jour. Afr. Earth Sci., v. 16, p. 5-24.
58. Van Niekerk, B. N., 1993, Klastemaaksel van die geplooide Dwykagroep, suid en wes van Laingsburg, Kaapprovinsie: Unpub. M.Sc. Thesis, Univ. of the Orange Free State, Bloemfontein, 88 p.
59. Visser, J. N. J., 1990, The age of the late Paleozoic glaciogene deposits in southern Africa: South Africa Jour. Geol, v. 93, p. 366-375.
60. _, 1994, The interpretation of massive rain-out and debris-flow diamictites from the glacial marine environment, in Deynoux, M.; Miller, J. M. G.; et al., eds., Earth's Glacial Record: Cambridge, Cambridge Univ. Press, p. 83-94.
61. _, von Brunn, V., and Johnson, M. R., 1990, Dwyka Group, in Catalog South Africa Lithostrat. Units, Vol. 2: Pretoria, Gov. Printer, p. 15-17.
62. von Brunn, V., 1994, Glaciogenic deposits of the Permo-Carboniferous Dwyka Group in the eastern region of the Karoo Basin, South Africa, in Deynoux, M.; Miller, J. M. G.; et al., eds., Earth's Glacial Record: Cambridge, Cambridge Univ. Press, p. 60-68.
63. _, and Talbot, C. J., 1986, Formation and deformation of subglacial intrusive clastic sheets in the Dwyka Formation of Northern Natal, South Africa: Jour. Sed. Petrol., v. 56, p. 35-44.
64. Williams, G. E., 1986, The Acraman impact structure: Source of ejecta in late Precambrian shales, South Australia: Science, v. 233, p. 200-203.
65. Young, G. M., 1993, Impacts, tillites, and the breakup of Gondwanaland: A Discussion: Jour. Geology, v. 101, p. 675-679.