The effect of fluid mobilization on the budget and distribution of rare earth elements in Antarctic H chondrites

Ryoga Maeda, Steven Goderis, Thibaut Van Acker, Frank Vanhaecke, Akira Yamaguchi, Vinciane Debaille, Philippe Claeys

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Abstract

Six-teen H chondrites with various degrees of weathering were investigated using several types of in-situ measurement to reveal the mechanism of Antarctic alteration in this study. As a result, a depleted REE pattern with a positive Ce anomaly and a deposition of unbonded REEs with a negative Ce anomaly were observed in cracks. In conclusions, the remarkable observations are explained by terrestrial alteration following chemical leaching among cracks, but this alteration occurs locally only.
Original languageEnglish
Title of host publicationThe 12th Symposium on Polar Science
PublisherNational Institute of Polar Research
Pages17-18
Number of pages2
Publication statusPublished - 9 Nov 2021
EventThe 12th Symposium on Polar Science: The 44th Symposium on Antarctic Meteorites - Online hosted by the National Institute of Polar Research, Tokyo, Japan
Duration: 15 Nov 202118 Nov 2021
https://www.nipr.ac.jp/symposium2021/index.html

Conference

ConferenceThe 12th Symposium on Polar Science
CountryJapan
CityTokyo
Period15/11/2118/11/21
Internet address

Keywords

  • H chondrite
  • NIPR
  • Rare Earth Elements
  • Weathering
  • LA-ICP-TOF-MS

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