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Table of Contents - Special Paper 339

Large Meteorite Impacts and Planetary Evolution II


Preface viii
INVESTIGATIONS OF TERRESTRIAL IMPACT STRUCTURES
1. Anatomy of the Popigai impact crater, Russia
V. L. Masaitis, M. V. Naumov, and M. S. Mashchak
1
2. Popigai impact structure (Arctic Siberia, Russia): Geology, petrology, geochemistry, and geochronology of glass-bearing impactites
Sergei Vishnevsky and Alessandro Montanari
19
3. Morokweng impact structure, South Africa: Geologic, petrographic, and isotopic results, and implications for the size of the structure
Wolf Uwe Reimold, Christian Koeberl, Franz Brandstätter, F. Johan Kruger, Richard A. Armstrong, and Cornelis Bootsman
61
4. Ni- and PGE-enriched quartz norite impact melt complex in the Late Jurassic Morokweng impact structure, South Africa
M. A. G. Andreoli, L. D. Ashwal, R. J. Hart, and J. M. Huizenga
91
5. Slate Islands, Lake Superior, Canada: A mid-size, complex impact structure
B. O. Dressler, V. L. Sharpton, and P. Copeland
109
6. Lycksele structure in northern Sweden: Result of an impact?
H. Thunehed, S.-Å. Elming, and L. J. Pesonen
125
7. Lake Karikkoselk" impact structure, central Finland: New geophysical and petrographic results
Lauri J. Pesonen, Seppo Elo, Martti Lehtinen, Tarmo Jokinen, Risto Puranen, and Liisa Kivekäs
131
8. Seismic expression of the Chesapeake Bay impact crater: Structural and morphologic refinements based on new seismic data
C. Wylie Poag, Deborah R. Hutchinson, Steven M. Colman, and Myung W. Lee
149
9. Gravity signature of the Teague Ring impact structure, Western Australia
Jeffrey B. Plescia
165
10. BP and Oasis impact structures, Libya, and their relation to Libyan Desert Glass
Begosew Abate, Christian Koeberl, F. Johan Kruger, and James R. Underwood, Jr.
177
11. Mjolnir Structure, Barents Sea: A marine impact crater laboratory
Filippos Tsikalas, Steinar Thor Gudlaugsson, Jan Inge Faleide, and Olav Eldholm
193
EFFECTS AND PRODUCTS OF IMPACT CRATERING
12. Shock-induced effects in natural calcite-rich targets as revealed by X-ray powder diffraction
Roman Skála and Petr Jakes
205
13. Carbon isotope study of impact diamonds in Chicxulub ejecta at Cretaceous-Tertiary boundary sites in Mexico and the Western Interior of the United States
R. M. Hough, I. Gilmour, and C. T. Pillinger
215
14. Formation of a flattened subsurface fracture zone around meteorite craters
Yevgeny Zenchenko and Vsevolod Tsvetkov
223
15. Effect of erosion on gravity and magnetic signatures of complex impact structures: Geophysical modeling and applications
J. Plado, L. J. Pesonen, and V. Puura
229
16. Impact crises, mass extinctions, and galactic dynamics: The case for a unified theory
Michael R. Rampino
241
17. Late Archean impact spherule layer in South Africa that may correlate with a Western Australian layer
Bruce M. Simonson, Scott W. Hassler, and Nicolas J. Beukes
249
THE CHICXULUB STRUCTURE-A THREE-DIMENSIONAL VIEW
18. Deep seismic reflection profiles across the Chicxulub crater
D. B. Snyder and R. W. Hobbs
263
19. Near-surface seismic expression of the Chicxulub impact crater
John Brittan, Joanna Morgan, Mike Warner, and Luis Marin
269
20. Morphology of the Chicxulub impact: Peak-ring crater or multi-ring basin?
Joanna Morgan and Mike Warner
281
21. Upper crustal structure of the Chicxulub impact crater from wide-angle ocean bottom seismograph data
G. L. Christeson, R. T. Buffler, and Y. Nakamura
291
NEW DEVELOPMENTS IN SUDBURY GEOLOGY
22. Sudbury Structure 1997: A persistent enigma
B. O. Dressler and V. L. Sharpton
299
23. Sudbury Breccia distribution and orientation in an embayment environment
John S. Fedorowich, Don H. Rousell, and Walter V. Peredery
305
24. Impact diamonds in the Suevitic Breccias of the Black Member of the Onaping Formation, Sudbury Structure, Ontario, Canada
V. L. Masaitis, G. I. Shafranovsky, R. A. F. Grieve, F. Langenhorst, W. V. Peredery, A. M. Therriault, E. L. Balmasov, and I. G. Fedorova
317
25. The Green Member of the Onaping Formation, the collapsed fireball layer of the Sudbury impact structure, Ontario, Canada
M. E. Avermann
323
26. Carbonaceous matter in the rocks of the Sudbury Basin, Ontario, Canada
Ted E. Bunch, Luann Becker, David Des Marais, Anne Tharpe, Peter H. Schultz, Wendy Wolbach, Daniel P. Glavin, Karen L. Brinton, and Jeffrey L. Bada
331
27. Origin of carbonaceous matter, fullerenes, and elemental sulfur in rocks of the Whitewater Group, Sudbury impact structure, Ontario, Canada
D. Heymann, B. O. Dressler, J. Knell, M. H. Thiemens, P. R. Buseck, R. B. Dunbar, and D. Mucciarone
345
28. Isotopic evidence for a single impact melting origin of the Sudbury Igneous Complex
A. P. Dickin, T. Nguyen, and J. H. Crocket
361
29. Sudbury Igneous Complex: Simulating phase equilibria and in situ differentiation for two proposed parental magmas
Alexey A. Ariskin, Alexander Deutsch, and Markus Ostermann
373
30. Sudbury impact event: Cratering mechanics and thermal history
B. A. Ivanov and A. Deutsch
389
31. Emplacement geometry of the Sudbury Igneous Complex: Structural examination of a proposed impact melt-sheet
E. J. Cowan, U. Riller, and W. M. Schwerdtner
399
32. Structural evolution of the Sudbury impact structure in the light of seismic reflection data
D. E. Boerner and B. Milkereit
419
33. Summary: Development of ideas on Sudbury geology, 1992-1998
A. J. Naldrett
431
Index 443