Luminescence of uranium and rare-earth elements in apatite of fossil fish teeth

Michael Gaft; Shlomo Shoval; Gerard Panczer; Yaacov Nathan; Bernard Champagnon; Claudine Garapon

doi:10.1016/S0031-0182(96)00079-X

Luminescence of uranium and rare-earth elements in apatite of fossil fish teeth

Michael Gaft
, Shlomo Shoval
, Gerard Panczer
, Yaacov Nathan
, Bernard Champagnon
, Claudine Garapon

Earth Sciences

Research output: Contribution to journal › Article › peer-review

Abstract

Time-delayed laser-induced luminescence of uranium and rare-earth elements (REE) in apatite of fossil fish teeth from the phosphorites of the Senonian Mishash Formation, Israel, were investigated before and after thermal treatment. The unheated samples show luminescence of UO₂/²⁺. Luminescence of REE³⁺ (Sm, Eu, Pr) is observed only after heating the samples at 1100 K in air. The spectral properties indicate that UO₂/²⁺ in the unheated samples is located in two different positions, as aqua- complexes of uranyl-ions and associated with organic matter. The REE in the unheated samples are accommodated in non-luminescent form. After heating the REE³⁺ (Sm, Eu, Pr) are located in the Ca²⁺ II site presumably due to thermal diffusion.

Original language	English
Pages (from-to)	187-193
Number of pages	7
Journal	Palaeogeography, Palaeoclimatology, Palaeoecology
Volume	126
Issue number	1-2
DOIs	https://doi.org/10.1016/S0031-0182(96)00079-X
State	Published - Nov 1996

Keywords

carbonate-apatite
luminescence
rare earth elements
teeth
uranium

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10.1016/S0031-0182(96)00079-X

Cite this

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title = "Luminescence of uranium and rare-earth elements in apatite of fossil fish teeth",

abstract = "Time-delayed laser-induced luminescence of uranium and rare-earth elements (REE) in apatite of fossil fish teeth from the phosphorites of the Senonian Mishash Formation, Israel, were investigated before and after thermal treatment. The unheated samples show luminescence of UO2/2+. Luminescence of REE3+ (Sm, Eu, Pr) is observed only after heating the samples at 1100 K in air. The spectral properties indicate that UO2/2+ in the unheated samples is located in two different positions, as aqua- complexes of uranyl-ions and associated with organic matter. The REE in the unheated samples are accommodated in non-luminescent form. After heating the REE3+ (Sm, Eu, Pr) are located in the Ca2+ II site presumably due to thermal diffusion.",

keywords = "carbonate-apatite, luminescence, rare earth elements, teeth, uranium",

author = "Michael Gaft and Shlomo Shoval and Gerard Panczer and Yaacov Nathan and Bernard Champagnon and Claudine Garapon",

year = "1996",

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doi = "10.1016/S0031-0182(96)00079-X",

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T1 - Luminescence of uranium and rare-earth elements in apatite of fossil fish teeth

AU - Gaft, Michael

AU - Shoval, Shlomo

AU - Panczer, Gerard

AU - Nathan, Yaacov

AU - Champagnon, Bernard

AU - Garapon, Claudine

PY - 1996/11

Y1 - 1996/11

N2 - Time-delayed laser-induced luminescence of uranium and rare-earth elements (REE) in apatite of fossil fish teeth from the phosphorites of the Senonian Mishash Formation, Israel, were investigated before and after thermal treatment. The unheated samples show luminescence of UO2/2+. Luminescence of REE3+ (Sm, Eu, Pr) is observed only after heating the samples at 1100 K in air. The spectral properties indicate that UO2/2+ in the unheated samples is located in two different positions, as aqua- complexes of uranyl-ions and associated with organic matter. The REE in the unheated samples are accommodated in non-luminescent form. After heating the REE3+ (Sm, Eu, Pr) are located in the Ca2+ II site presumably due to thermal diffusion.

AB - Time-delayed laser-induced luminescence of uranium and rare-earth elements (REE) in apatite of fossil fish teeth from the phosphorites of the Senonian Mishash Formation, Israel, were investigated before and after thermal treatment. The unheated samples show luminescence of UO2/2+. Luminescence of REE3+ (Sm, Eu, Pr) is observed only after heating the samples at 1100 K in air. The spectral properties indicate that UO2/2+ in the unheated samples is located in two different positions, as aqua- complexes of uranyl-ions and associated with organic matter. The REE in the unheated samples are accommodated in non-luminescent form. After heating the REE3+ (Sm, Eu, Pr) are located in the Ca2+ II site presumably due to thermal diffusion.

KW - carbonate-apatite

KW - luminescence

KW - rare earth elements

KW - teeth

KW - uranium

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ER -

Luminescence of uranium and rare-earth elements in apatite of fossil fish teeth

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Keywords

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