Projects per year
Abstract
Micrometeorites (MMs) are extraterrestrial dust particles ranging in size between 10 μm and 2 mm [1], which form the main part of the extraterrestrial flux to Earth ~40000 tons/year) [2]. Traditionally, MMs have been recovered from a variety of environments including deep-seas, deserts, lakes and by melting large of Antarctic ice or snow [3-5]. Over the last decade, large and fresh accumulations of MMs have been discovered in sediment traps on top of glacially eroded granitic summits in the Transantarctic Mountains [6]. Similar deposits have also been found during the 2012-2013 Belgian-Japanese MICROMETA expedition in the Sør Rondane Mountains (East Antarctica), and are currently under investigation. Due to differential production and transportation mechanisms, these microscopic particles of the near-Earth dust complex sample parent bodies different from those of meteorites [7-9]. Oxygen ratios are one of the most powerful diagnostic tools to determine the origin of extraterrestrial material, because the combined mass-dependent and mass-independent effects on the three isotopes (16O,17O, and 18O) are well known [10]. Mass-dependent and mass-independent effects during the atmospheric entry of micrometeoroids predominantly reflect fractionation (i.e. from a single source) or mixing of two or more sources (e.g., between nebular reservoirs or with terrestrial oxygen), respectively. Here we present an overview of the available oxygen isotopic data from literature and briefly discuss how the application of SHRIMP-SI (Sensitive High-Resolution Ion Microprobe – Stable Isotope) may facilitate the identification of MM parent bodies.
Original language | English |
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Title of host publication | 2016 SHRIMP Workshop Granada |
Pages | 62-64 |
Number of pages | 3 |
Publication status | Published - 2016 |
Event | VIII International SHRIMP Workshop, Granada, Spain - University of Granada, Granada, Spain Duration: 6 Sep 2016 → 10 Sep 2016 |
Conference
Conference | VIII International SHRIMP Workshop, Granada, Spain |
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Abbreviated title | VIII SHRIMP |
Country/Territory | Spain |
City | Granada |
Period | 6/09/16 → 10/09/16 |
Bibliographical note
Invited Keynote talk at VIII International SHRIMP workshopFingerprint
Dive into the research topics of 'A SYNTHESIS OF TRIPLE-OXYGEN ISOTOPE ANALYSES ON ANTARCTIC MICROMETEORITES'. Together they form a unique fingerprint.-
OZR2725: ULB-VUB Joint Research Group: Brussels Institute for Geochemical Techniques in Earth Sciences - BIGE
Claeys, P. & Mattielli, N.
5/12/14 → 2/10/28
Project: Fundamental
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FWOTM752: Metamorphism and melting in protoplanets during the first 10 million years of Solar System evolution: Connecting metamorphic rocks with mantle residues
Mckibbin, S. & Claeys, P.
1/10/14 → 1/07/17
Project: Fundamental
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SRP2: Strategic Research Programme: Tracing and Modelling of Past & Present Global Changes
Claeys, P., Elskens, M., Huybrechts, P., Gao, Y., Kervyn De Meerendre, M., Claeys, P., Baeyens, W. & Dehairs, F.
1/11/12 → 31/10/24
Project: Fundamental