EP11B:
Extraterrestrial Tracers and Materials in Sediments: Techniques, Approaches, and New Discoveries Posters

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Session ID#: 22928

Session Description:
Over all of its history, the Earth has accreted extraterrestrial materials, and stored them in a variety of sedimentary deposits. Initially, only bulk sediments were searched for tracers such as Ir, or isotopes of He, Cr, Fe and Os. These tracers have been used to, e.g., establish variations in the influx of extraterrestrial matter, locate ejecta beds from large impacts, and determine impactors types (iron, chondritic, etc.). The last decade has seen significant progress in the identification, recovery and characterization of actual extraterrestrial materials, allowing us to document changes in the interplanetary flux reaching Earth over time, to constrain the origins of meteorites, and study the consequences of extraterrestrial events (e.g., asteroid break-ups or near-by supernovae) for life on Earth. We invite contributions on techniques to identify, extract and study extraterrestrial materials from sediments, as well as new ideas, results and applications which will bring the field forward.
Primary Convener:  Matthias M. M. Meier, ETH Zurich, Zurich, Switzerland
Convener:  Birger Schmitz, Lund University, Department of Physics, Lund, Sweden
Chairs:  Matthias M. M. Meier, ETH Zurich, Zurich, Switzerland and Birger Schmitz, Lund University, Department of Physics, Lund, Sweden
OSPA Liaison:  Matthias M. M. Meier, ETH Zurich, Zurich, Switzerland
Co-Organized with:
Earth and Planetary Surface Processes, and Planetary Sciences

Cross-Listed:
  • P - Planetary Sciences
  • PP - Paleoceanography and Paleoclimatology
  • V - Volcanology, Geochemistry and Petrology
Index Terms:

1039 Alteration and weathering processes [GEOCHEMISTRY]
2129 Interplanetary dust [INTERPLANETARY PHYSICS]
6205 Asteroids [PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS]
6240 Meteorites and tektites [PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS]

Abstracts Submitted to this Session:

The Popigai impact ejecta layer in the Monte Vaccaro section, Piobbico, Italy (220052)
Samuele Boschi1, Birger Schmitz2 and Fredrik Terfelt1, (1)Lund University, Nuclear Physics, Lund, Sweden, (2)Lund University, Department of Physics, Lund, Sweden
The Record of Meteorite Infall During the Jurassic as Derived from Chrome-Spinel Grains (279765)
Caroline Caplan, California State University San Marcos, San Marcos, United States, Gary R Huss, University of Hawaii NASA Astrobiology Institute, Hawai’i Institute of Geophysics and Planetology, Honolulu, HI, United States, Birger Schmitz, Lund University, Department of Physics, Lund, Sweden and Kazu Nagashima, University of Hawaii at Manoa, HIGP, Honolulu, HI, United States
Evidences of melting of terrestrial sediments and paleoenvironment changes during the Younger Dryas in tectonic lacustrine basins of Transmexican Volcanic Belt, Mexico. (269096)
Isabel Israde-Alcantara, Universidad Michoacana de San Nicolás de Hidalgo, INSTITUTO DE INVESTIGACIONES EN CIENCIAS DE LA TIERRA, Morelia, Mexico and Gabriela Domínguez-Vazquez, James Bischoff, Allen West, Silvia Gonzalez, David Huddart
Silurian Micrometeorite Flux: The Demise of the Mid-Ordovician L-Chondrite Reign. (216948)
Ellinor Martin, Lund University, Nuclear Physics, Lund, Sweden and Birger Schmitz, Lund University, Department of Physics, Lund, Sweden
The Miocene Extraterrestrial Dust Deposition Event Tracked by Helium, Neon, Chromium and Extraterrestrial Insoluble Organic Matter at the Monte Dei Corvi Beach Section (269603)
Matthias M. M. Meier1, Robert C. J. Steele1, Birger Schmitz2, Laurette Piani3, Colin Maden4, Amy A. Plant1, Maria Schönbächler5 and Henner Busemann1, (1)ETH Zurich, Zurich, Switzerland, (2)Lund University, Department of Physics, Lund, Sweden, (3)CRPG Centre de Recherches Pétrographiques et Géochimiques, Vandoeuvre-Les-Nancy, France, (4)ETH Zurich, Institute of Geochemistry and Petrology, Zurich, Switzerland, (5)ETH Zurich, Department of Earth Sciences, Zurich, Switzerland
Ten Windows Into the Meteorite Flux to Earth During the Past 500 Million Years (290337)
Birger Schmitz, Lund University, Department of Physics, Lund, Sweden

See more of: Earth and Planetary Surface Processes