Bulk Oxygen Isotopic Composition of Antarctic Micrometeorites: Effect of Atmospheric Entry

• Main Authors: Engrand, C., Dobrică, E.
• Other Authors: CSNSM AS, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
• Format: Conference Object
• Language: English
• Published: HAL CCSD 2012
• Subjects: [PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP]; [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP]; Antarctic; Antarc*
• Online Access: https://hal.in2p3.fr/in2p3-00673489

International audience The bulk O isotopic compositions of Antarctic micrometeorites are broadly compatible with that of carbonaceous chondrites, but systematic heavy O isotopic enrichments due to atmospheric entry were observed in partially melted particles.