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  4. 中国科学院地球与行星物理重点实验室
Iron, magnesium, and titanium isotopic fractionations between garnet, ilmenite, fayalite, biotite, and tourmaline: Results from NRIXS, ab initio, and study of mineral separates from the Moosilauke metapelite

文献类型：期刊论文

作者Nie, Nicole X.1,12,13,14; Dauphas, Nicolas12,13,14; Alp, Esen E.11; Zeng, Hao12,13,14; Sio, Corliss K.10; Hu, Justin Y.12,13,14; Chen, Xi12,13,14; Aarons, Sarah M.9,12,13,14; Zhang, Zhe12,13,14; Tian, Heng-Ci5,7,8
刊名GEOCHIMICA ET COSMOCHIMICA ACTA
出版日期2021-06-01
卷号302页码:18-45
ISSN号0016-7037
关键词Iron isotopes Mg isotopes Ti isotopes Moosilauke Metapelite NRIXS Ab initio calculations
DOI10.1016/j.gca.2021.03.014
英文摘要Interpreting isotopic signatures documented in natural rocks requires knowledge of equilibrium isotopic fractionation factors. Here, we determine equilibrium Fe isotope fractionation factors between several common rock-forming minerals using a comparative approach involving three independent methods: (i) isotopic analyses of natural minerals from a metapelite from Mt. Moosilauke, New Hampshire, for which equilibration temperature and pressure are well constrained to be near the aluminosilicate triple point (T similar or equal to 500 degrees C, P similar or equal to 4 kbar), (ii) Nuclear Resonant Inelastic X-ray Scattering (NRIXS) measurements of Fe force constants of minerals, and (iii) Density Functional Theory (DFT) ab initio calculations of Fe force constants of minerals. The minerals studied for Fe isotopes include, in increasing order of their b-factors: garnet < ilmenite approximate to fayalite < biotite < tourmaline < muscovite approximate to plagioclase. Some of this ordering is affected by the presence of Fe3+ in the minerals, which tends to form stiffer bonds and be associated with heavy Fe isotope enrichments relative to Fe2+. We are, however, able to assess the magnitude of the effect of the ratio Fe3+/Sigma Fe on equilibrium fractionation factors, notably on the ilmenite-hematite solid solution. Equilibrium Fe isotopic fractionation factors between garnet, ilmenite, biotite, tourmaline and fayalite are determined. We also report Mg and Ti isotopic compositions of selected Moosilauke minerals that allow us to better constrain the equilibrium fractionation factors for garnet-biotite-tourmaline (Mg isotopes) and biotite-ilmenite (Ti isotopes). We show how the newly determined equilibrium fractionation factors can be used to address diverse problems in Earth and planetary sciences, notably ( i) Fe and Mg isotopic fractionation during anatexis, (ii) Fe isotopic fractionation in lunar ilmenite, and (iii) Ti isotopic fractionation during fluvial transport of minerals. (C) 2021 Elsevier Ltd. All rights reserved.
WOS关键词NONTRADITIONAL STABLE-ISOTOPES ; AL2SIO5 TRIPLE POINT ; X-RAY-SCATTERING ; CRYSTAL-STRUCTURE ; HIGH-TEMPERATURE ; EQUILIBRIUM FRACTIONATION ; STRUCTURE REFINEMENT ; STRUCTURAL CONTROLS ; ELECTRON-DENSITY ; FE-57 MOSSBAUER
资助项目NASA[NNX17AE86G] ; NASA[NNX17AE87G] ; NASA[80NSSC17K0744] ; NASA[80NSSC20K0821] ; NSF[EAR1502591] ; NSF[EAR144495] ; NSF[EAR-2001098] ; NASA Earth and Space Science Fellowship[NNX15AQ97H] ; Carnegie Postdoctoral Fellowship ; DOE Office of Science[DEAC0206CH11357]
WOS研究方向Geochemistry & Geophysics
语种英语
出版者PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号WOS:000645903700002
资助机构NASA ; NASA ; NSF ; NSF ; NASA Earth and Space Science Fellowship ; NASA Earth and Space Science Fellowship ; Carnegie Postdoctoral Fellowship ; Carnegie Postdoctoral Fellowship ; DOE Office of Science ; DOE Office of Science ; NASA ; NASA ; NSF ; NSF ; NASA Earth and Space Science Fellowship ; NASA Earth and Space Science Fellowship ; Carnegie Postdoctoral Fellowship ; Carnegie Postdoctoral Fellowship ; DOE Office of Science ; DOE Office of Science ; NASA ; NASA ; NSF ; NSF ; NASA Earth and Space Science Fellowship ; NASA Earth and Space Science Fellowship ; Carnegie Postdoctoral Fellowship ; Carnegie Postdoctoral Fellowship ; DOE Office of Science ; DOE Office of Science ; NASA ; NASA ; NSF ; NSF ; NASA Earth and Space Science Fellowship ; NASA Earth and Space Science Fellowship ; Carnegie Postdoctoral Fellowship ; Carnegie Postdoctoral Fellowship ; DOE Office of Science ; DOE Office of Science
源URL[http://ir.iggcas.ac.cn/handle/132A11/101181]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Nie, Nicole X.
作者单位1.Carnegie Inst Sci, Earth & Planets Lab, Washington, DC 20015 USA
2.Rensselaer Polytech Inst, Dept Earth & Environm Sci, 110 8th St, Troy, NY 12180 USA
3.Univ Paris 06, Sorbonne Univ, Museum Natl Hist Nat, IMPMC,CNRS UMR 7590, CP 52,57 Rue Cuvier, F-75231 Paris, France
4.Field Museum Nat Hist, Robert A Pritzker Ctr Meteorit & Polar Studies, Chicago, IL 60605 USA
5.Washington Univ, Dept Earth & Planetary Sci, 1 Brookings Dr, St Louis, MO 63123 USA
6.Washington Univ, McDonnell Ctr Space Sci, 1 Brookings Dr, St Louis, MO 63123 USA
7.Univ Washington, Dept Earth & Space Sci, Isotope Lab, Seattle, WA 98195 USA
8.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
9.Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA
10.Lawrence Livermore Natl Lab, 7000 East Ave L-231, Livermore, CA 94550 USA
推荐引用方式
GB/T 7714		 Nie, Nicole X.,Dauphas, Nicolas,Alp, Esen E.,et al. Iron, magnesium, and titanium isotopic fractionations between garnet, ilmenite, fayalite, biotite, and tourmaline: Results from NRIXS, ab initio, and study of mineral separates from the Moosilauke metapelite[J]. GEOCHIMICA ET COSMOCHIMICA ACTA,2021,302:18-45.
APA Nie, Nicole X..,Dauphas, Nicolas.,Alp, Esen E..,Zeng, Hao.,Sio, Corliss K..,...&Spear, Frank S..(2021).Iron, magnesium, and titanium isotopic fractionations between garnet, ilmenite, fayalite, biotite, and tourmaline: Results from NRIXS, ab initio, and study of mineral separates from the Moosilauke metapelite.GEOCHIMICA ET COSMOCHIMICA ACTA,302,18-45.
MLA Nie, Nicole X.,et al."Iron, magnesium, and titanium isotopic fractionations between garnet, ilmenite, fayalite, biotite, and tourmaline: Results from NRIXS, ab initio, and study of mineral separates from the Moosilauke metapelite".GEOCHIMICA ET COSMOCHIMICA ACTA 302(2021):18-45.

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来源：地质与地球物理研究所

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