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  • Presentation | V32B: Petrology and Geochemistry of Meteorites and Returned Samples I Oral
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  • V32B-03: The Hydrothermal Alteration History of Asteroid Bennu Recorded by Phosphates (invited)
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  • Location Icon350-351
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Author(s):
Jessica Barnes, University of Arizona (First Author, Presenting Author)
Laura Seifert, NASA Johnson Space Center
Beverley Tkalcec, Goethe University
Guy Libourel, Université Côte d'Azur, OCA, CNRS, Lagrange
Kenneth Domanik, Univ Arizona
Timmons Erickson, Amentum-JETS II
Zoe Wilbur, National Museum of Natural History, Smithsonian Institution
Kana Ishimaru, University of Arizona
Iunn Ong, University of Arizona
Frank Brenker, Geothe University
Pierre Haenecour, University of Arizona
Elias Bloch, University of Arizona
Lindsay Keller, NASA Johnson Space Ctr
Dolores Hill, University of Arizona
Harold Connolly, Rowan University
Dante Lauretta, University of Arizona


Samples from asteroid Bennu reveal the complex history of aqueous alteration experienced by Bennu's parent body. We examined minerals in Bennu samples that precipitated from such ancient fluids. They reveal a complex history of growth and alteration and our results help fill important gaps in our understanding of the nature of fluids, secondary mineralization, and element mobilization on Bennu’s parent body.



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