Bulk Chemical Composition of the Ningqiang Carbonaceous Chondrite:An Issue of Classification
DOI:
Author:
Affiliation:

Clc Number:

P185.83

Fund Project:

  • Article
  • |
  • Figures
  • |
  • Metrics
  • |
  • Reference
  • |
  • Related
  • |
  • Cited by
  • |
  • Materials
  • |
  • Comments
    Abstract:

    The Ningqiang meteorite is a fall carbonaceous chondrite, containing various Ca-, Al-rich inclusions that usually escaped from secondary events such as high-temperature heating and low- temperature alteration. However, it has not yet been classified into any known chemical group. In order to address this issue, 41 elements of the bulk Ningqiang meteorite were analyzed using inductively coupled plasma mass spectrometry (ICP-MS) and inductively coupled plasma atom emission spectrometry (ICP-AES) in this study. The Allende (CV3) carbonaceous chondrite and the Jilin (H5) ordinary chondrite were also measured as references, and our analyses are consistent with the previous results. Rare earth and other refractory lithophile elements are depleted in Ningqiang relative to both Allende and mean CK chondrites. In addition, the REE pattern of Ningqiang is nearly flat, while that of Allende shows slight enrichment of LREE relative to HREE. Siderophile elements of Ningqiang are close to those of mean CK chondrites, but lower than those of Allende. Our new analyses indicate that Ningqiang cannot be classified into any known group of carbonaceous chondrites, consistent with previous reports.

    Reference
    Related
    Cited by
Get Citation

WANG Guiqin, LIN Yangting,* Key Laboratory of Isotope Geochronology, Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, Guangdong Graduate School, Chinese Academy of Sciences, Beijing State Key Laboratory of Lithosphere Tectonic Evolution, Institute of Geology, Geophysics, Chinese Academy of Sciences, Beijing .2007. Bulk Chemical Composition of the Ningqiang Carbonaceous Chondrite:An Issue of Classification[J]. Acta Geologica Sinica(),81(1):141-147

Copy
Share
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:February 09,2006
  • Revised:June 19,2006
  • Adopted:
  • Online:
  • Published: