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Trace Elements of Ostracod Shell Used as an Indicator for Palaeoenvironmentary Reconstruction

  • Yuhong Zhao
Part of the Palaeontologia Cathayana book series (PALAEONTOLOGIA, volume 5)

Abstract

Trace elements of forty-four ostracod shells have been accurately measured by using electron probe in conjunction with SEM. The specimens comprise four groups: living marine, living non-marine, fossil marine and fossil non-marine ostracods. The result reveals that these ostracod shells contain the following chemical elements: Calcium (Ca), Silica (Si), Aluminium (Al), Iron (Fe), Magnesium (Mg), Potassium (K), Chlorine (Cl), Sulphur (S), Sodium (Na) and Barium (Ba) (in their order of abundance). Ca is most abundant and accounts for 31–36%, and the total amount of other trace elements is less than 10%. There is obvious difference in trace elements between the marine ostracod shell and the freshwater one. This paper shows how they can be used to deduce the palaeoenvironment in which fossil ostracods once lived.

These analytical results of the chemical content of ostracod shells help to throw light on the cause of different colours in fossilised shells and the process of their formation.

Keywords

Magnesium Carbonate Marine Facies East Lake Palaeoenvironmental Reconstruction Shell Composition 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1990

Authors and Affiliations

  • Yuhong Zhao
    • 1
  1. 1.Nanjing Institute of Geology and PalaeontologyAcademia SinicaChina

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