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- Many environmental processes can cause sulfur isotope fractionation.While microbial sulfate reduction plays a key role in sulfur isotope fractionation in surface environment. 许多环境过程可以引起硫同位素分馏,表生环境下微生物还原硫酸盐是最重要的硫同位素分馏过程。
- Mass-Independent Sulfur Isotope Fractionation Effect in Archean Stratiform Sulfides from Xintai Area, Shandong Province 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
- Sulfur isotope fractionation 硫同位素分馏
- Abstract The isotope fractionation effect is primary factor affecting accuracy of hydrogen isotope analysis. 摘要 同位素分馏效应是影响氢同位素准确分析的主要因素。
- The isotope fractionation effect is primary factor affecting accuracy of hydrogen isotope analysis. 同位素分馏效应是影响氢同位素准确分析的主要因素。
- The basic concept of isotope fractionation and the mechanism of Rayleigh fractionation model under equilibrium condition are discussed. 本文简要介绍了同位素分馏的基本概念,对平衡条件下瑞利分馏机制进行了分析。
- The Anqing copper deposit has a complicated sulfur isotope composition ,which can not be explained by the variations of a single sulfur source or the physico-chemical conditions. 安徽安庆铜矿床的硫同位素组成复杂,不能用单一硫源或物理化学条件的变化来解释。
- Up to date, most studies are focused on sample pretreatment methods for GC/IRMS analysis, isotope fractionation mechanics in physical-chemical processes and biodegradation. CSIA has been successfully used in environmental pollution assessment. 目前的研究,主要集中在GC IRMS样品前处理技术、物理化学过程所导致的同位素分馏、不同有机化合物在生物降解过程中的同位素分馏过程诸方面,并初步应用于一些受污染环境的评价中。
- The carbon isotope fractionation of kerogen during thermal maturatio n and wea thering is related to organic type, the better the type is, the greater the frac tionation difference is... 因此,长期以来干酪根碳同位素一直被视为有机质类型判识的最可靠指标之一...
- In order to investigate carbon isotope fractionation of coalbed methane,a canister desorption experiment of coal was carried out with the samples collected from Jincheng and Changji areas. 为了探讨煤层甲烷碳同位素分馏特征,采集晋城和昌吉地区样品进行了罐装解吸实验。
- The carbon isotope fractionation effect of samples from Jincheng is more apparent than that from Changji, which is mainly attribute to the different pore structure of coal samples. 晋城地区煤样解吸气体的同位素分馏效果比昌吉地区的明显,孔隙结构差异是一个主要影响因素。
- The research status of the stable isotopes in the field of environmental science and the isotope fractionation is revi. 空间信息统计学,又称为地质统计学,是研究多孔介质空间变异性的有效方法,在环境科学领域有很好的应用前景。
- SULFUR ISOTOPE OF THE TRIASSIC SEA 三叠纪海的硫同位素
- Keywords Deliquescent aerosol;SO 2;Sulfur isotope; 潮湿气溶胶;二氧化硫;硫同位素;
- Sulfur isotopes suggest that sulfur mainly came from magma, with the entry of materials from inclosing rocks. 银来源于五台群、高于庄组白云质灰岩及次火山岩体,锰主要来源于高于庄组二段含锰灰岩。
- This paper summarizes the research method of Cu and Zn isotopes,and the factor affecting isotope fractionation and its application in environment geochemistry. 本文对铜锌同位素的测试方法、分馏机理及其在环境地球化学研究领域的应用进行了较系统综述。
- The catalysis of enzymes causes much more complexity for the isotopic fractionation under microbial actions. 辅酶对反应的催化作用使微生物作用造成的同位素分馏更加复杂。
- mass-independent isotope fractionation 非质量同位素分馏
- Sea salt sulfate in the upper part of sediment column was dominantly reduced by AOM, and the remained sulfate involving reduction would probably cause positive sulfur isotopic excursion of pyrites. 海水源为主的硫酸盐参与了沉积物上部的AOM过程,黄铁矿硫稳定同位素正偏的原因可能与较强的AOM作用和较多的残余硫酸盐参与有关。
- The relative large lithium isotopic fractionation in natural samples has useful application in the fields of geochemistry, cosmo-chemistry and nuclear chemistry. 自然界锂同位素分馏强烈,这使得它在很多方面都得到了应用,如地球化学、天体化学和核工业等。
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