SYNCHROTRON INFRARED AND RAMAN SPECTROSCOPY OF MICRODIAMONDS FROM ERZGEBIRGE, GERMANY
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dc.contributor.author | Dobrzhinetskaya L.F. | |
dc.contributor.author | Zhang J. | |
dc.contributor.author | Liu Z. | |
dc.contributor.author | Hemley R.J. | |
dc.contributor.author | Cartigny P. | |
dc.contributor.author | Tchkhetia D. | |
dc.contributor.author | Green II H.W. | |
dc.date.accessioned | 2024-07-20T12:14:03Z | |
dc.date.available | 2024-07-20T12:14:03Z | |
dc.date.issued | 2006 | |
dc.identifier | https://elibrary.ru/item.asp?id=13528021 | |
dc.identifier.citation | Earth and Planetary Science Letters, 2006, 248, 1-2, 325-334 | |
dc.identifier.issn | 0012-821X | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/44502 | |
dc.description.abstract | Metamorphic diamonds from the Erzgebirge, Germany have been investigated using synchrotron infrared absorption, Raman scattering, and fluorescence spectroscopy. Infrared absorption features associated with C-C, C-H bonds, molecular H2O, OH- and CO32- radicals, and N-impurities were observed. The results suggest that a carbon-oxygen-hydrogen (COH) supercritical fluid is the most probable concept to explain the origin of diamonds from ultrahigh-pressure metamorphic terranes (UHPM). Investigation of the nitrogen impurities suggests that the Erzgebirge diamonds belong to the Type 1b-1aA, which is similar to metamorphic diamonds from the Kokchetav massif of Kazakhstan and the Western Gneiss Region of Norway, and differentiates them from other nitrogen-bearing diamonds from kimberlitic sources (Type 1aAB). The occurrence of nitrogen impurities as single atoms in the crystal lattice implies that the Erzgebirge diamonds had a short residence at high-pressure and high-temperature, which therefore suggests a possibility for very fast exhumation. Both infrared and previous studies of nanoinclusions using a transmission electron microscope support a concept of diamond crystallization from a COH rich supercritical fluid. © 2006 Elsevier B.V. All rights reserved. | |
dc.subject | INFRARED | |
dc.subject | MICRODIAMOND | |
dc.subject | RAMAN | |
dc.subject | SYNCHROTRON | |
dc.title | SYNCHROTRON INFRARED AND RAMAN SPECTROSCOPY OF MICRODIAMONDS FROM ERZGEBIRGE, GERMANY | |
dc.type | Статья | |
dc.identifier.doi | 10.1016/j.epsl.2006.05.037 |
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