Iron valence in the hydration layer of obsidian: characterization by X-ray absorption spectroscopy

被引：2
|
作者：
Lytle, FW [1 ]
Pingitore, NE
机构：
[1] EXAFS Co, Pioche, NV 89043 USA
[2] Univ Texas, Dept Geol Sci, El Paso, TX 79968 USA
来源：
MICROCHEMICAL JOURNAL | 2002年 / 71卷 / 2-3期
基金：
美国国家卫生研究院; 美国国家科学基金会;
关键词：
obsidian; hydration; age dating; X-ray absorption spectroscopy; iron valence;
D O I：
10.1016/S0026-265X(02)00010-3
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
We used a combined fluorescent X-ray and electron yield measurement of the Fe K-edge X-ray absorption near edge structure (XANES) of Modena obsidian to determine the original valence, Fe2+, and change in valence to Fe3+ during atmospheric hydration. We believe this to be the first observation of the valence change of Fe during the hydration of obsidian. The combination of the spectra measured with the electron channel and the X-ray channel resulted in apparent sensitivity from hours to geologic time. The technique may prove useful in age dating archaeological and geological specimens of obsidian. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：185 / 191
页数：7
相关论文
共 50 条
  • [31] X-RAY ABSORPTION SPECTROSCOPY FOR THE CHEMICAL CHARACTERIZATION OF ATMOSPHERIC AEROSOLS
    JAKLEVIC, JM
    THOMPSON, AC
    [J]. TRANSACTIONS OF THE AMERICAN NUCLEAR SOCIETY, 1979, 33 (NOV): : 240 - 241
  • [32] Valence to Core X-ray Emission Spectroscopy
    Gallo, Erik
    Glatzel, Pieter
    [J]. ADVANCED MATERIALS, 2014, 26 (46) : 7730 - 7746
  • [33] X-RAY ABSORPTION-SPECTROSCOPY OF IRON-TYROSINATE PROTEINS
    QUE, L
    ROE, AL
    MAYER, R
    PYRZ, JW
    SCHNEIDER, DJ
    WIDOM, J
    [J]. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1983, 185 (MAR): : 40 - INOR
  • [34] X-RAY ABSORPTION-SPECTROSCOPY OF IRON-TYROSINATE PROTEINS
    ROE, AL
    SCHNEIDER, DJ
    MAYER, RJ
    PYRZ, JW
    WIDOM, J
    QUE, L
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1984, 106 (06) : 1676 - 1681
  • [35] X-ray photoemission and absorption spectroscopy of supported nanoscale iron clusters
    Edmonds, KW
    Baker, SH
    Thornton, SC
    Maher, MJ
    Keen, AM
    Binns, C
    [J]. JOURNAL OF APPLIED PHYSICS, 1999, 86 (05) : 2651 - 2654
  • [36] X-ray absorption spectroscopy of iron-doped conducting polymers
    Porto, AO
    Pernaut, JM
    Daniel, H
    Schilling, PJ
    Alves, MCM
    [J]. SYNTHETIC METALS, 1999, 104 (02) : 89 - 94
  • [37] Environmental Studies of Iron in Sediments by Means of X-ray Absorption Spectroscopy
    Banas, A.
    Banas, K.
    Yang, P.
    Moser, H. O.
    Breese, M. B. H.
    Kubica, B.
    Kwiatek, W. M.
    [J]. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH, 2014, 8 (02) : 263 - 272
  • [38] Melting of iron determined by X-ray absorption spectroscopy to 100 GPa
    Aquilanti, Giuliana
    Trapananti, Angela
    Karandikar, Amol
    Kantor, Innokenty
    Marini, Carlo
    Mathon, Olivier
    Pascarelli, Sakura
    Boehler, Reinhard
    [J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2015, 112 (39) : 12042 - 12045
  • [39] X-RAY ABSORPTION-SPECTROSCOPY OF MYOGLOBIN AND IRON PORPHYRIN DERIVATIVES
    ALBEN, JO
    FIAMINGO, FG
    CROTEAU, AA
    HEMANN, CF
    POWELL, KA
    MOLLERAN, VM
    PARK, S
    [J]. PHYSICA B, 1989, 158 (1-3): : 87 - 89
  • [40] Gallium- and Iron-Pyoverdine Coordination Compounds Investigated by X-ray Photoelectron Spectroscopy and X-ray Absorption Spectroscopy
    Nicolafrancesco, Chiara
    Porcaro, Francesco
    Pis, Igor
    Nappini, Silvia
    Simonelli, Laura
    Marini, Carlo
    Frangipani, Emanuela
    Visaggio, Daniela
    Visca, Paolo
    Mobilio, Settimio
    Meneghini, Carlo
    Fratoddi, Ilaria
    Iucci, Giovanna
    Battocchio, Chiara
    [J]. INORGANIC CHEMISTRY, 2019, 58 (08) : 4935 - 4944
12345