P004
Beyond the Catastrophe: The Biological and Astrobiological significance of impact cratering in the Solar System

Session ID#: 82641

Session Description:
Meteorite impact events are unique, ubiquitous, and significant geological processes on every rocky and icy body in the Solar System. Impact events on the early Earth undoubtedly had profound effects on early life, if not the origin of life. The effects of shock metamorphism combined with the generation of post-impact hydrothermal systems in the presence of adequate water make impact environments attractive astrobiology targets. This session will discuss the beneficial biological consequences and astrobiological implications of meteorite impact events and impact craters: including habitat modification, generation of subsurface habitability, biosignature preservation, microbial metabolic implications, planetary exploration targets,
Index Terms:

0448 Geomicrobiology [BIOGEOSCIENCES]
5215 Origin of life [PLANETARY SCIENCES: ASTROBIOLOGY]
5220 Hydrothermal systems and weathering on other planets [PLANETARY SCIENCES: ASTROBIOLOGY]
5420 Impact phenomena, cratering [PLANETARY SCIENCES: SOLID SURFACE PLANETS]

Primary Convener:  Haley M Sapers, California Institute of Technology, Pasadena, CA, United States
Conveners:  Alexandra Pontefract, Massachusetts Institute of Technology, Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United States, Gordon Osinski, University of Western Ontario, Earth Sciences, London, ON, Canada and Charles S Cockell, University of Edinburgh, UK Centre for Astrobiology, School of Physics and Astronomy, Edinburgh, United Kingdom
Primary Liaison:  Haley M Sapers, University of Western Ontario, Centre for Planetary Science and Exploration, London, ON, Canada
 
Constraining the Crystallization and Early Cooling History of Large Impact Melt Sheets Through High-Precision Geochronology – Implications for the Thermal Evolution of Early Planetary Crusts and Associated Habitability (492116)
Gavin Kenny1, James L Crowley2, Mark David Schmitz2, Marco A. G. Andreoli3 and Roger Gibson4, (1)Swedish Museum of Natural History, Stockholm, Sweden, (2)Boise State University, Boise, ID, United States, (3)University of the Witwatersrand, Johannesburg, South Africa, (4)University of the Witwatersrand, School of Geosciences, Johannesburg, South Africa
 
The Simulation of 3D Oblique Cometary Impacts (532396)
Taiki Suzuki, Tokyo, Mitaka, Japan; Astrobiology Center, Tokyo, Japan, Takashi Shibata, Core Concept Technologies Inc, Tokyo, Japan and Natsuki Hosono, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan
 
Impact-Induced Deposit Overlying the Paraburdoo Spherule Layer, Hamersley Basin, Western Australia (546884)
Katrina Skube Korman, Temple University, Philadelphia, PA, United States and Alexandra E Davatzes, Temple University, Earth and Environmental Science, Philadelphia, PA, United States
 
Hypervelocity Impacts and Exposed Lithospheric Mantle: A Way to Recognize Large Terrestrial Impact Basins (Continued)? An Ophiolite Obduction Mechanism? (554565)
Eric Peter Olds, College of Alameda, Alameda, CA, United States
 
Synthesis of Cyanide Ions (CN-) via Hypervelocity Impacts (HVIs) (563925)
Ziqin Ni1, Benjamin Jacob Farcy1, Ricardo Arevalo Jr2 and William B Brinckerhoff3, (1)University of Maryland College Park, College Park, MD, United States, (2)NASA GSFC, Greenbelt, MD, United States, (3)NASA, Greenbelt, MD, United States
 
Fate of Amino Acids and Nucleobases under Impact Induced Shock – Discovery of Complex Macroscale Structures and Implications to the Origins of life (582457)
Surendra Vikram Singh1, V Jayarm2, S Karthik1, S Vijayan1, V Chandrasekaran3, R Thombre4, T Vijay5, B N Raja Sekhar6, Anil Bhardwaj1, G Jadadeesh2, K P J Reddy2, N J Mason7 and B Sivaraman1, (1)Physical Research Laboratory, Ahmedabad, India, (2)Indian Institute of Science, Bangalore, India, (3)Vellore Institute of Technology, Vellore, India, (4)Modern College of Art and Science, Pune, India, (5)Indian Institute of Technology Gandhinagar, Gandhinagar, India, (6)BARC at RRCAT, Indore, India, (7)University of Kent, Canterbury, United Kingdom
 
Zircon U/Pb and (U-Th)/He double dating to constrain the thermal evolution of Chicxulub impact crater (592614)
Cornelia Rasmussen1, Daniel F Stockli1, Rudra N Chatterjee1, Annemarie Pickersgill2, Sean P S Gulick3, Martin Schmieder4, David A Kring5, Axel Wittmann6, Catherine Ross7, Gail Lynn Christeson8, Sonia Tikoo9, Long Xiao10, Joanna V Morgan11 and and the IODP-ICDP Exp. 364 Science party , (1)University of Texas at Austin, Austin, TX, United States, (2)University of Glasgow, Glasgow, United Kingdom, (3)The University of Texas at Austin, Department of Geological Sciences, Austin, TX, United States, (4)Lunar and Planetary Institute, Houston, United States, (5)Lunar and Planetary Institute, Houston, TX, United States, (6)Arizona State University, Eyring Materials Center, Tempe, AZ, United States, (7)University of Texas at Austin, Austin, United States, (8)UTIG, Austin, TX, United States, (9)Stanford University, Department of Geophysics, Stanford, CA, United States, (10)China University of Geosciences, Wuhan, China, (11)Imperial College London, Department of Earth Science and Engineering, London, United Kingdom
 
A Comparison of Spherule Diameter Measurement Techniques. (622989)
Sophie Silver1, Katrina Skube Korman1 and Alexandra E Davatzes2, (1)Temple University, Philadelphia, PA, United States, (2)Temple University, Earth and Environmental Science, Philadelphia, PA, United States
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