| 山东新泰太古代层状硫化物中的硫同位素非质量分馏效应 |
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| 引用本文：李延河,万德芳,乐国良.2005.山东新泰太古代层状硫化物中的硫同位素非质量分馏效应[J].地球学报,26(z1):3-5. |
| DOI：10.3975/cagsb.2005.s1.02 |
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| 基金项目:本文为国家自然科学基金项目（编号40273008）资助 |
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| 中文摘要:物理、化学和生物作用引起的热力学和巩俐学同位素分馏均为与质量有关的分馏。非质量同位素分馏效应应是由一些特殊的气相光化学反应引起的，它可以解释一些元素浓度，甚至单个同位素比值无法揭示的特殊的作用过程。笔者首次在山东新泰地区新太古代层状硫化物中观测到了明显的硫同位素非质量分馏效应。δ33S、δ34S呈线性排列，且与硫同位素质量分馏线平行，33S小于0。 |
| 中文关键词:山东新泰 太古代硫化物 硫同位素 非质量分馏 |
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| Mass-Independent Sulfur Isotope Fractionation Effect in Archean Stratiform Sulfides from Xintai Area, Shandong Province |
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| Abstract:Thermodynamics and kinetic fraction resulting from physical, inchemical and biological processes are both mass-dependent isotope fractionations.The mass-independent isotope frationation effects are probably derived from a few special gas-phase photochemical reactions. The mass-independent isotope effects can reveal processes that are unobservable by other techniques including single isotope ratio measurements. An obvious mass-independent sulfur isotope fractionation was first observed in Archean stratiform sulfides from Xintai area, Shandong Province. In the δ33S-δ34S plot, all data points are distributed along a lineal line parallel to EMDL (the mass dependent fractionation line), with δ33S lower than 0. |
| keywords:Xintai area Archena sulfides sulfur isotope mass-independent fractionaction |
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