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Effect of Target Properties on the Impact Cratering Process

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Effect of Target Properties on the Impact Cratering Process WORKSHOP PROGRAM AND ABSTRACTS LPI Contribution No. 1360 BRIDGING THE GAP II: EFFECT OF TARGET PROPERTIES ON THE IMPACT CRATERING PROCESS September 22–26, 2007 Saint-Hubert, Canada SPONSORS Canadian Space Agency Lunar and Planetary Institute Barringer Crater Company NASA Planetary Geology and Geophysics Program CONVENERS Robert Herrick, University of Alaska Fairbanks Gordon Osinski, Canadian Space Agency Elisabetta Pierazzo, Planetary Science Institute SCIENTIFIC ORGANIZING COMMITTEE Mark Burchell, University of Kent Gareth Collins, Imperial College London Michael Dence, Canadian Academy of Science Kevin Housen, Boeing Corporation Jay Melosh, University of Arizona John Spray, University of New Brunswick Lunar and Planetary Institute 3600 Bay Area Boulevard Houston TX 77058-1113 LPI Contribution No. 1360 Compiled in 2007 by LUNAR AND PLANETARY INSTITUTE The Institute is operated by the Universities Space Research Association under Agreement No. NCC5-679 issued through the Solar System Exploration Division of the National Aeronautics and Space Administration. Any opinions, findings, and conclusions or recommendations expressed in this volume are those of the author(s) and do not necessarily reflect the views of the National Aeronautics and Space Administration. Material in this volume may be copied without restraint for library, abstract service, education, or personal research purposes; however, republication of any paper or portion thereof requires the written permission of the authors as well as the appropriate acknowledgment of this publication. Abstracts in this volume may be cited as Author A. B. (2007) Title of abstract. In Bridging the Gap II: Effect of Target Properties on the Impact Cratering Process, p. XX. LPI Contribution No. 1360, Lunar and Planetary Institute, Houston. This volume is distributed by ORDER DEPARTMENT Lunar and Planetary Institute 3600 Bay Area Boulevard Houston TX 77058-1113, USA Phone: 281-486-2172 Fax: 281-486-2186 E-mail: [email protected] Mail orders requestors will be invoiced for the cost of shipping and handling. ISSN No. 0161-5297 Preface This volume contains abstracts that have been accepted for presentation at the Bridging the Gap II: Effect of Target Properties on the Impact Cratering Process, September 22–26, 2007, Saint-Hubert, Canada. Administration and publications support for this meeting were provided by the staff of the Publications and Program Services Department at the Lunar and Planetary Institute. Bridging the Gap II: Effect of Target Properties on the Impact Cratering Process v Contents Program .........................................................................................................................................................................1 Experimental Studies of Ejecta Dynamics: Implications for Scaling and Models J. L. B. Anderson .............................................................................................................................................9 Impact Plume Numerical Modeling N. Artemieva..................................................................................................................................................11 Shock Wave Propagation and Damage to the Target in Oceanic Impact Events E. C. Baldwin, D. J. Milner, M. J. Burchell, and I. A. Crawford ..................................................................13 Effects of Target Properties on the Formation of Laboratory Scale Impact Craters O. S. Barnouin-Jha, M. J. Cintala, D. A. Crawford, J. L. B. Anderson, S. Yamamoto, and S. Sugita..........................................................................................................................15 Depth and Diameter Relationships of Martian and Terrestrial Planet Complex Impact Craters J. M. Boyce....................................................................................................................................................17 The Effect of Target Properties on Impact Crater Morphology — Comparison of Craters on Icy and Silicate Bodies V. J. Bray, G. S. Collins, J. V. Morgan, and P. M. Schenk............................................................................19 Bright-Haloed Craters in Chryse Planitia and Implications for Target Properties D. L. Buczkowski, O. S. Barnouin-Jha, and A. Weaver.................................................................................21 Stardust Craters and Tracks: In Space and in the Laboratory M. J. Burchell, A. T. Kearsley, and F. Hörz..................................................................................................23 The SMART 1 Impact Event: From the Laboratory to the Moon M. J. Burchell, R. Robin-Williams, and B. H. Foing.....................................................................................25 Effects of Global Target Shape on Impact Cratering C. J. Byrne.....................................................................................................................................................27 Development of a Small Rayed Crater Database for Mars: Initial Results F. J. Calef, R. Herrick, and V. L. Sharpton ...................................................................................................29 Automatic Search for New Impact Structures in Fennoscandia A. F. Chicarro, H. Dypvik, L. J. Pesonen, A. P. Rossi, S. O. Krøgli, and H. Zumspregel.............................31 The Effect of Target Strength Variations on Complex Crater Formation: Insight from Numerical Modelling G. S. Collins ..................................................................................................................................................33 The Effect of Porosity and Friction on Ejection Processes: Insight from Numerical Modeling G. S. Collins and K Wünnemann...................................................................................................................35 Evidence for Transhemispheric Dispersion of an Ejecta Debris-Jet by a High-Velocity Tangential Impact Along the Austral-Indian Ocean at Ca. 4 Kyr BP M. A. Courty, B. Deniaux, G. Cortese, A. Crisci, X. Crosta, M. Fedoroff, F. Guichard, K. Grice, P. Greenwood, F. Lavigne, M. Mermoux, D. C. Smith, B. Peucker-Ehrenbrink, F. Poitrasson, R. Poreda, G. Ravizza, M. H. Thiemens, U. Schärer, A. Shukolyukov, M. Walls, and P. Wassmer...............................................................................37 vi LPI Contribution No. 1360 Investigating the Effect of Water Depth on Marine Impact Crater Morphology T. Davison and G. Collins.............................................................................................................................39 An Inconvenient View: Interpreting How Shock-induced Fractures Influence Impact Crater Development M. R. Dence...................................................................................................................................................41 Impact Metamorphism: On the Width of the Gap Between Observation and Modeling — The Geologist’s View vs. the Modelers Assessment II A. Deutsch and K. Wünnemann.....................................................................................................................43 Structural Signatures of Oblique Impacts — Insights from Numerical Modeling D. Elbeshausen, M. Poelchau, K. Wünnemann, and T. Kenkmann...............................................................45 Cratering Mechanisms of Oblique Impacts in Targets of Different Strength — Insights from Numerical Modeling D. Elbeshausen, K. Wünnemann, and G. S. Collins ......................................................................................47 Distribution of Shocked Quartz Grains Along the LB-08A Core Through the Central Uplift of the Bosumtwi Impact Structure, Ghana — Implications for Numerical Models L. Ferrière, C. Koeberl, and W. U. Reimold .................................................................................................49 Modeling Distal Impact Ejecta Sedimentation: The K/T Boundary Double Layer T. J. Goldin and H. J. Melosh .......................................................................................................................51 Pseudo-Liquid (Hugoniot) and Particle-in-Matrix Modeling in Geologic Materials R. A. Graham.................................................................................................................................................53 “Antisymmetric” Shock Wave Distribution at Ries Impact Crater, Germany?: A Micro-Raman Spectroscopical Study of Shocked Zircon A. Gucsik .......................................................................................................................................................55 The Fate of Water in Melts Produced During Natural and Experimental Impacts into Wet, Fine-grained Sedimentary Targets R. S. Harris, P. H. Schultz, and P. L. King....................................................................................................57 From Map to Model — 3D Visualization of the Vredefort Central Uplift, South Africa A. Jahn, U. Riller, and W. U. Reimold ..........................................................................................................59 Hypervelocity Collisions of Projectiles and Targets: Shock Wave Propagation in Heterogeneous Rocks Inferred from Microstructures T. Kenkmann .................................................................................................................................................60 Impact Triggering of the Snowball Earth Deglaciation? C. Koeberl, B. A. Ivanov,
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