Microbeam XAFS investigations on fluid inclusions
In this paper, we discuss the use of x-ray absorption fine structure (XAFS) techniques for the determination of structure of metal complexes in fluid inclusions heated to elevated temperatures. Analysis of Zn K-edge XAFS spectra measured from a single hypersaline fluid inclusion in quartz shows that the ZnCl42- complex is dominant at all temperatures up to and including 430 °C. The Zn-Cl bond length was found to decrease uniformly with temperature, up to nearly 2% at 430 °C in comparison to the value at 25 °C. The Zn-Cl mean-square relative displacement increased linearly with temperature, from a value of 0.0043 angstrom2 at 25 °C to 0.0089 angstrom2 at 430 °C.
Physics, Astronomy, and Materials Science
Mayanovic, Robert A., Alan J. Anderson, and Saša Bajt. "Microbeam XAFS investigations on fluid inclusions." MRS Online Proceedings Library Archive 437 (1996).
Materials Research Society Symposium Proceedings