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Table of Contents - Special Paper 465

Large Meteorite Impacts and Planetary Evolution IV

Edited by Roger L. Gibson and Wolf Uwe Reimold

Introduction: Impact cratering and planetary studies — A fifty-year perspective
Roger L. Gibson and Wolf Uwe Reimold		 vii

Solar System Impact Cratering and Numerical Modelling
1. Elliptical craters and basins on the terrestrial planets
Jeffrey C. Andrews-Hanna and Maria T. Zuber		 1
2. Central pit craters: Observations from Mars and Ganymede and implications for formation models
Nadine G. Barlow 		15
3. Basin-forming impacts: Reconnaissance modeling
B.A. Ivanov, H.J. Melosh, and E. Pierazzo 		29
4. Polygonal impact craters in the solar system: Observations and implications
T. Öhman, M. Aittola, J. Korteniemi, V.-P. Kostama, and J. Raitala 		51
5. The effects of crater degradation and target differences on the morphologies of Martian complex craters
J. Whitehead, R.A.F. Grieve, J.B. Garvin, and J.G. Spray 		67
6. Water resurge at marine-target impact craters analyzed with a combination of low-velocity impact experiments and numerical simulations
Jens Ormö, Alain Lepinette, Erik Sturkell, Maurits Lindström, Kevin R. Housen, and Keith A. Holsapple 		81

Geophysics and Remote Sensing Investigations
7. Seismic images of Chicxulub impact melt sheet and comparison with the Sudbury structure
P.J. Barton, R.A.F. Grieve, J.V. Morgan, A.T. Surendra, P.M. Vermeesch, G.L. Christeson, S.P.S. Gulick, and M.R. Warner 		103
8. Fracturing, thermal evolution and geophysical signature of the crater floor of a large impact structure: The case of the Sudbury Structure, Canada
B. Milkereit, N. Artemieva, and H. Ugalde 		115
9. Architecture of the northeastern rim of the Kârdla impact crater, Estonia, based on ground-penetrating radar studies
Argo Jõeleht and Jüri Plado 		133
10. Ries crater, Germany: The Enkingen magnetic anomaly and associated drill core SUBO 18
Jean Pohl, Klaus Poschlod, W. Uwe Reimold, Cornelia Meyer, and Juliane Jacob 		141
11. Coarse-grained magnetites in biotite as a possible stable remanence-carrying phase in Vredefort granites
Norihiro Nakamura, Kensaku Okuno, Minoru Uehara, Tetsuya Ozawa, Lisa Tatsumi-Petrocholis, and Michael Fuller 		165
12. Cerro do Jarau, Rio Grande do Sul: A possible new impact structure in southern Brazil
Alvaro P. Crósta, Fernanda Silva Lourenço, and Gustavo Heinzelmann Priebe 		173
13. A possible new impact structure in the Okavango Delta, Botswana
G.R.J. Cooper, S.J. Webb, R.L. Gibson, and I. Martinez 		191
14. Geophysical characteristics of four possible impact structures in the Parnaíba Basin, Brazil: Comparison and implications
Marcos Alberto R. Vasconcelos, Alvaro P. Crósta, and Eder C. Molina		 201

Impact Ejecta and Post-Impact Deposits
15. Accretionary and melt impactoclasts from the Tookoonooka impact event, Australia
Katherine A. (Treena) Bron 		219
16. Debrisites from the Sudbury impact event in Ontario, north of Lake Superior, and a new age constraint: Are they base-surge deposits or tsunami deposits?
William D. Addison, Gregory R. Brumpton, Don W. Davis, Philip W. Fralick, and Stephen A. Kissin 		245
17. Tracing the Manson impact event across the Western Interior Cretaceous Seaway
David J. Varricchio, Christian Koeberl, Russell F. Raven, Wendy S. Wolbach, William C. Elsik, and Daniel P. Miggins 		269
18. Mechanisms of late synimpact to early postimpact crater sedimentation in marine-target impact structures
H. Dypvik and E. Kalleson 		301

Drilling of Impact Structures
19. Inside the crater, outside the crater: Stratigraphic details of the margin of the Chesapeake Bay impact structure, Virginia, USA
Lucy E. Edwards, David S. Powars, J. Wright Horton Jr., Gregory S. Gohn, Jean M. Self-Trail, and Ronald J. Litwin 		319
20. Siderophile elements from the Eyreville drill cores of the Chesapeake Bay impact structure do not constrain the nature of the projectile
S. Goderis, J. Hertogen, F. Vanhaecke, and Ph. Claeys 		395
21. Melt particle characteristics of the within- and out-of-crater suevites from the Bosumtwi impact structure, Ghana: Implications for crater formation
Louise Coney, Wolf Uwe Reimold, Roger L. Gibson, Christian Koeberl, and Paula Ogilvie 		411
22. Geochemistry of basement rocks and impact breccias from the central uplift of the Bosumtwi crater, Ghana—Comparison of proximal and distal impactites
Ludovic Ferrière, Christian Koeberl, Franz Brandstätter, and Dieter Mader 		443

Field Investigations
23. The complex impact crater Jebel Waqf as Suwwan in Jordan: Effects of target heterogeneity and impact obliquity on central uplift formation
T. Kenkmann, W.U. Reimold, M. Khirfan, E. Salameh, H. Khoury, and K. Konsul 		471
24. Roter Kamm impact crater of Namibia: New data on rim structure, target rock geochemistry, ejecta, and meteorite trajectory
Roy McG. Miller 		489
25. Target and impact deposits at Rochechouart impact structure, France
P. Lambert 		509
26. The Carswell impact event, Saskatchewan, Canada: Evidence for a pre-Athabasca multiring basin?
Serge Genest, Francine Robert, and Isabelle Duhamel 		543
27. First SHRIMP U-Pb and 40Ar/39Ar chronological results from impact melt breccia from the Paleoproterozoic Dhala impact structure, India
Jayanta Kumar Pati, Fred Jourdan, Richard Austin Armstrong, Wolf Uwe Reimold, and Kuldeep Prakash 		571

Shock Deformation Phenomena and Experimental Studies
28. Relative shock effects in mixed powders of calcite, gypsum, and quartz: A calibration scheme from shock experiments
Mary Sue Bell 		593
29. Ballen quartz and cristobalite in impactites: New investigations
Ludovic Ferrière, Christian Koeberl, Eugen Libowitzky, W. Uwe Reimold, Ansgar Greshake, and Franz Brandstätter 		593
30. Microchemical investigation of small-scale pseudotachylitic breccias from the Archean gneiss of the Vredefort Dome, South Africa
Tanja Mohr-Westheide and Wolf Uwe Reimold 		619
31. Iron oxidation state and local structure in North American tektites
Gabriele Giuli, Sigrid Griet Eeckhout, Maria Rita Cicconi, Christian Koeberl, Giovanni Pratesi, and Eleonora Paris 		645
32. Iron reduction in silicate glass produced during the 1945 nuclear test at the Trinity site (Alamogordo, New Mexico, USA)
Gabriele Giuli, Giovanni Pratesi, Sigrid Griet Eeckhout, Christian Koeberl, and Eleonora Paris 		653