收稿日期: 1995-07-07
修回日期: 1995-12-26
网络出版日期: 1996-07-01
基金资助
国家自然科学基金和中国科学院专项基金资助项目.
LASER MICROPROBE: A NEW METHOD FOR STABLE ISOTOPE ANALYSIS
Received date: 1995-07-07
Revised date: 1995-12-26
Online published: 1996-07-01
李一良，支霞臣，郑永飞 . 激光探针——新的稳定同位素分析方法[J]. 地球科学进展, 1996 , 11(4) : 409 -413 . DOI: 10.11867/j.issn.1001-8166.1996.04.0409
The conventional bromine trifloride method and bromine pentaflour ide method are recapitulated.Both methods cant react completely with some high temperature minerals such as high Mg olivine, garnet,kyanite etc.The laser microprobe method is introduced here.It is demonstrated that the laser micro probe method has the short analysis cycle and high precision in contrast to the conventional method. The fractional effects associated with the oxygen yields and oxygen carbondioxide conversion stage are discussed too.Data given by laser microprobe method lately terminated the controversy on the O isotope system of peridotite, the results show that the peridotite minerals may have gotten fractional equilibrium.Meanwhile the laser microprobe is a powerful tool in study sulfur isotope zonation and heterogeneity of minerals.
[1]Beartschi P, Silverman S R. The determination of the relative abundance of the oxygen isotope in silicate rocks.Ceochimica et Cosmochimica Acta, 1951, 1:317-328.
[2]Baudoin C, Taylor B E. High precision and spatial resolution sulfur isotope analysis using MILES laser microprobe.Ceochimica et Cosmochimica Acta, 1994, 58(22):5055-5063.
[3]Borthwiclk J, Harmon R S. A note regarding ClF3 as an alternative to BrF5 for oxygen isotope analysis. Ceochimica et Cosmochimica Acta, 1982, 46: 1665-1668.
[4]Clayton R N，M ayeda K M .The use of bromine pentafluoride in the extraction of oxygen from oxides and silicates for isotope analysis. Ceochimica et Cosmochimica Acta, 1963, 54: 43-52.
[5]Crowe D E, Valley J W，Baler K L. Microanalysis of sulfur isotope ratios and zonation by laser microprobe.Ceochimica et Cosmochimica Acta, 1990, 54: 2075-2092.
[6]Eldridge C S, CompstonW, Williams I S, et al. Sulfur isotope variability in sediment-hosted massive sulfide deposits as determined using the ion microprobe SHRIMP: 1.An example from the Rammelsberg orebody. Econ Ceol, 1988,83: 443-449.
[7]Elsenheimer D, Valley J W.In situ Oxygen isotope analysis of fieldspar and quartz by Nd: YAC laser microprobe. Chemical Ceology(Isotope Ceoscience Section), 1992, 101:21-42.
[8]Feeley T C, Sharp Z D. 18O/ 16O isotope geochemistry of silicate lava flows erupted from Vulcan Ollague, Andean Central Volcanic Zone. Earth and Planet Science Letter, 1995, 133: 239-254.
[9]Cegory R T, Taylor H P. Non-equilibrian 18O/ 16O effects in mantle nodules, an alternative to the Kyser-O'Neil-Carmichael 18O/ 16O geothermometer. Contrib Minerals Petrol, 1986, 93: 114-119.
[10]Kempton P D, Harmon R S, Stosch H-G, et al. Open system O-isotope behavior and trace element in the Eifel mantle. Earth and Planet Science Letter, 1988, 89: 223-287.
[11]Ionov D A, Harmon K S, France-lanord C, et al. Oxygen isotope composition of garnet and spinel peridotites in the continental mantle，evidence from the vitim xenolith suite southern Siberia. Ceochimica et Cosmochimica Acta,1994, 58: 1463-1470.
[12]Kelley S P, Fallick A E. High precision spatially analysis of δ34S in sulfides using a laser extraction technique.Ceochimica et Cosmochimica Acta, 1990, 54: 883-888.
[13]Kyser T K, O' Neil J R, Carmichaell S E. Reply to "Possible non-equilibrium oxygen isotope effect in mantle nodides, an alternative to the Kyser-O'N-Carmichael 18O/ 16O geothermometer”.Contrib Mineral Petrol, 1986, 93:120- 123.
[14]Mattey D, Lowry D, Macpherson C. Oxygen isotope composition of mantle peridotite. Earth and Planet Science Letter, 1994, 128: 231-241.
[15]Mattey D, M acpherson C.High presicion oxygen isotope microanalysis of ferromagnesian minerals by laser-fluorination. Chemical Ceology(Isotope Ceoscience Section)，1993, 105: 305-318.
[16]Mcguire A V, Dyar M D, Nielson J E·Metasomatic oxidation of upper mantle peridotite. Mineral Petrol, 1991,109: 252-264.
[17]Sharp Z D. In situ laser microprobe technique for stable isotope analysis. Chemical Geology(Isotope Ceoscience Seotion)，1992, 101:3-19.
[18]Rosenbaum J M, Wallier D, Kyser T K. Oxygen isotope fractionation in the mantle. Ceochimica et Cosmochimica Acta, 1994, 58(21):4767-4777.
[19]Venneman T W，Smith H S. The rate and temperature of reaction of ClF3 with silicate minerals and their relevance to oxygen isotope analysis. Chemical Ceology(Isotope Ceosience Section)，1990, 86: 83-88.
[20]Zheng Y F. Calculation of Oxygen isotope fractionation in anhydrous silicate minerals. Ceochimica et Cosmochimica Acta, 1993, 57: 1079-1091.
/
| 〈 |
|
〉 |
甘公网安备62010202000687
