Econ. Environ. Geol. 2005; 38(2): 129-134

Published online April 30, 2005

© THE KOREAN SOCIETY OF ECONOMIC AND ENVIRONMENTAL GEOLOGY

Sr and Pb Isotopic Properties in Limnetic Gastropod (Semisulcospira libertina) Shell in the Jinan, Jeonbuk Area.

Seo-Ryeong Jeon* and Jae-il Chung

Department of Earth and Environmental Sciences, Chonbuk National University, Jeonju 561-781, Korea

Correspondence to :

Seo-Ryeong Jeon

srjeon@hanmail.net

Received: December 23, 2004; Accepted: March 8, 2005

Abstract

The 87Sr/86Sr ratios between water and biogenic material are similar in marine and lacustrine environment. Pb isotope ratios are, however, reported not to have been corresponding between the biological tissues and ambient water in aquatic system, contrary to the Sr isotope ratios. In order to explore the potential application of two isotopes as environmental tracers, we report here the isotopic compositions of strontium and lead of gastropod shell in fresh water in Jinan area. The 87Sr/86Sr ratios of carbonate shells of gastropod living in fresh stream water, are similar as that of ambient water but are different by sites. The different 87Sr/86Sr ratios of stream water between the sites is likely caused by the difference of the isotopic composition of Sr derived form rocks in the basin. In contrast,
there is a distinct difference of the lead isotopic values between the water and the gastropod shell, suggesting that shell-fish available lead in aquatic system is different from dissolved lead in water. It is assumed that the majority of Pb in stream water is derived from atmospheric Pb accumulated on soil materials over years rather than from rock.

Keywords Sr isotopes, Pb isotopes, gastropod shell, stream water, bedrock

Article

Econ. Environ. Geol. 2005; 38(2): 129-134

Published online April 30, 2005

Copyright © THE KOREAN SOCIETY OF ECONOMIC AND ENVIRONMENTAL GEOLOGY.

Sr and Pb Isotopic Properties in Limnetic Gastropod (Semisulcospira libertina) Shell in the Jinan, Jeonbuk Area.

Seo-Ryeong Jeon* and Jae-il Chung

Department of Earth and Environmental Sciences, Chonbuk National University, Jeonju 561-781, Korea

Correspondence to:

Seo-Ryeong Jeon

srjeon@hanmail.net

Received: December 23, 2004; Accepted: March 8, 2005

Abstract

The 87Sr/86Sr ratios between water and biogenic material are similar in marine and lacustrine environment. Pb isotope ratios are, however, reported not to have been corresponding between the biological tissues and ambient water in aquatic system, contrary to the Sr isotope ratios. In order to explore the potential application of two isotopes as environmental tracers, we report here the isotopic compositions of strontium and lead of gastropod shell in fresh water in Jinan area. The 87Sr/86Sr ratios of carbonate shells of gastropod living in fresh stream water, are similar as that of ambient water but are different by sites. The different 87Sr/86Sr ratios of stream water between the sites is likely caused by the difference of the isotopic composition of Sr derived form rocks in the basin. In contrast,
there is a distinct difference of the lead isotopic values between the water and the gastropod shell, suggesting that shell-fish available lead in aquatic system is different from dissolved lead in water. It is assumed that the majority of Pb in stream water is derived from atmospheric Pb accumulated on soil materials over years rather than from rock.

Keywords Sr isotopes, Pb isotopes, gastropod shell, stream water, bedrock

    KSEEG
    Jun 30, 2024 Vol.57 No.3, pp. 281~352

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