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| 1 | Large selenium isotopic variations and its implication in the Yutangba Se deposit, Hubei Province, China显示文摘The selenium isotopic ratios have been measured in the Yutangba Se deposit, Hubei Province, China. The results show that the δ 82/76SeNIST values vary from -12.77‰ to 4.93‰, which is the largest Se iso- topic variation found so far in natural terrestrial samples. The sample Ytb-5 of high-selenium carbona-ceous shale has the lightest Se isotopic composition with a δ 82/76SeNIST value of -12.77‰. On the basis of variations of Se isotope in the deposit along with other geological and geochemical evidence, the 'redox model' is suggested to favor the explanation of the occurrence of native Se in the deposit. The application to the Yutangba Se deposit with the discovery of large Se isotopic fractionation for natural samples indicates the potential of Se isotope as a new geochemical tracer. | WEN HanJie Jean CARIGNAN HU RuiZhong FAN HaiFeng CHANG Bin YANG GuangShu | 2007 | Chinese Science Bulletin2007，52，17： | 5 |
| 2 | 湖北渔塘坝硒矿床中最大硒同位素分馏的发现及其指示意义显示文摘对渔塘坝硒矿床中高硒的碳质硅质岩和碳质页岩样品进行了硒同位素测定.测定结果显示,其δ82/76SeNIST范围从-12.77‰~4.93‰,总变化为17.7‰.这是迄今所发现的自然界中最大的同位素分馏,同时样品Ytb-5(高硒碳质页岩)的δ82/76SeNIST为-12.77‰,也是目前所发现的自然界中最富硒轻同位素的样品.根据硒同位素的分布特征,结合其他地质证据和地球化学指标,认为'氧化-还原模式'是对矿床中自然硒大量出现的合理解释.同时,硒同位素在自然界中较大的分馏效应也证明其作为一种新的地球化学示踪剂有其独特的应用潜力. | 温汉捷 Jean Carignan 胡瑞忠 樊海峰 畅斌 杨光树 | 2007 | 科学通报2007，52，15： | 5 |
| 3 | 象牙海岸Issia地区铌钽砂矿的研究(英文)显示文摘在西非的象牙海岸Issia地区分布着许多铌钽矿床,包括原生矿和砂矿。原生矿产在分带很好的伟晶岩中。这个地区发育着许多花岗岩和花岗伟晶岩。伟晶岩可分为:(1)分异不好的伟晶岩,无矿化;(2)含Be伟晶岩,分带较好,见绿柱石;(3)含Be-Nb-Ta的伟晶岩,分带很好,是矿体;(4)Be-Nb-Ta-Li伟晶岩,分带很好,是矿体。除了10多个原生矿外,还有许多砂矿。砂矿有两种类型:一种近原生矿的坡积砂矿,另一种是经河流冲刷搬运后的冲积砂矿。我们选择了Etienne-Meguhe砂矿作为近原生矿的坡积砂矿的代表,Bemadi矿作为河流冲积型的砂矿的代表,对这两种类型的砂矿的风化、搬运、沉积机理进行了比较研究。研究发现不同的搬运距离和搬运模式对铌钽砂矿的主要矿物——铌钽铁矿的化学性质没有什么影响,而其物理形态则发生了变化。坡积型砂矿的铌钽铁矿常与石英、长石等矿物连生,其颗粒大小与原生的Nb-Ta伟晶岩中的铌钽铁矿一致;经河流冲积而形成的砂矿中,铌钽铁矿颗粒变小、轮廓变得圆滑,几乎无连生矿物,但矿体集中,常在河流的冲积扇中分布,易开采。 | Benjamin A ALLOU Huanzhang LU Jayanta GUHA Jacques CARIGNAN | 2008 | 大地构造与成矿学2008，32，2： | 3 |
| 4 | Nutrient dynamics in a littoral sediment colonized by the submersed macrophyte MyriophyUum spicatum 显示文摘 | Carignan R | 1985 | Canadian Journal of Fisheries and Aquatic Sciences1985，42，7： | 1 |
| 5 | Phosphorus sources for aquatic weeds:water or Sediments显示文摘 | CARIGNAN R KALFF J | 1980 | Science1980，207，： | 1 |
| 6 | Mercury isotope fractionation during liquid-vapor evaporation experiments 显示文摘 | Estrade N Carignan J Sonke J E | 2009 | Geochimica et Cosmochimica Acta2009，73，10： | 1 |
| 7 | Soil organic sulfur dynamics in a coniferous forest 显示文摘 | Houle D Carignan R Ouimet R | 2001 | Biogeochemistry2001，53，1： | 1 |
| 8 | Scaling NIST SRM 3149 for Se isotope analysis and isotopic variations of natural samples显示文摘 | Carignan J Wen H J | 2007 | Chemi- cal Geology2007，242，： | 1 |
| 9 | Contribution of elec- tive delivery to severe respiratory distress at term 显示文摘 | Wax JR Herson V Carignan E | 2010 | Am J Perinatol2010，19，2： | 1 |
| 10 | Geochemistry of trace metals associated with reduced sulfur in freshwater sediments显示文摘 | Huerta-Diaz M A Tessier A Carignan R | 1998 | Appl Geochem1998，13，： | 1 |
| 11 | Assay of oxytetracycline residues in salmon muscle by liquid chromagraphy with ultra vialet detection显示文摘 | CARIGNAN G CARRIER K SVED S | 1993 | Journal of AOAC International1993，76，2： | 1 |
| 12 | Intrathoracic lymphoproliferative disorders in the immunocompromised patient:CT findings显示文摘 | Carignan S Staples CA Muller NL | 1995 | Radiology1995，197，1： | 1 |
| 13 | Sediment porewater sampling for metal analysis: a comparison of techniques 显示文摘 | Carignan R Rapin F Tessier A | 1985 | Geochem Cosmochim Acta1985，49，： | 1 |
| 14 | Quantitation and confirmation of sulfamethazine residues in swine muscle and liver by LC and GC/MS显示文摘 | CARIGNAN G CARRIER K | 1991 | J Assoc Offic Anal Chem1991，74，： | 1 |
| 15 | Occurrence of mycosporinc- like amino acids in red tide dinoflagellate Alexandrium excavatum : UV - protective compounds 显示文摘 | Carreto J I Carignan M O Daleo G | 1990 | Planton Res1990，12，： | 1 |
| 16 | The reaction stabilization of on-orbit robots显示文摘 | Carignan C R Akin D L | 2000 | IEEE control systems magazine2000，20，6： | 1 |
| 17 | Selenium isotopes trace the source and redox processes in the black shale-hosted Se-rich deposits in China显示文摘 | Wen H J Carignan J | 2011 | Geochimica et Cosmochimica Acta2011，75，： | 1 |
| 18 | Chromatographic and spectroscopic characterization of sulphurbound dimetridazole and reonidazole derivatives 显示文摘 | GIRARD M CARIGNAN G MOUSSEAU N | 1991 | Journal of Pharmaceutical & Biomedical Analysis1991，9，： | 1 |
| 19 | Mercury isotope fractionation during liquid-vapor evaporation experiments显示文摘 | Estrade N Carignan J Sonke J E | 2009 | Geoehimica et Cosmochimica Acta2009，73，： | 1 |
| 20 | Tracing source pollution in soils using cadmium and lead isotopes显示文摘 | Cloquet C Carignan J Libourel G | 2006 | Environmental Science and Technology2006，40，8： | 1 |
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