gtcrustГеодинамика и тектонофизикаGeodynamics & Tectonophysics2078-502XInstitute of the Earth's crust of the Russian Academy of Sciences, Siberian Branch10.5800/GT-2022-13-2s-0610gtcrust-1494Research ArticleПАЛЕОГЕОДИНАМИКАPALEOGEODYNAMICSПРИМЕСНЫЕ ЦЕНТРЫ СВЕЧЕНИЯ ВО ФТОРАПАТИТЕ ИЗ ХРУСТАЛЕНОСНОГО ПАРАГЕНЕЗИСА ПО ДАННЫМ ФОТО-, КАТОДО- И СИНХРОТРОННО-ИНДУЦИРОВАННОЙ ЛЮМИНЕСЦЕНЦИИIMPURITY LUMINESCENCE CENTERS IN FLUORAPATITE FROM QUARTZ-BEARING PARAGENESIS ACCORDING TO PHOTO-, CATHODE- AND SYNCHROTRON-INDUCED LUMINESCENCEЩаповаЮ. В.ShchapovaYu. V.

620016, Екатеринбург, ул. Академика Вонсовского, 15

15 Academician Vonsovsky St, Ekaterinburg 620016

ВотяковС. Л.VotyakovS. I.

620016, Екатеринбург, ул. Академика Вонсовского, 15

15 Academician Vonsovsky St, Ekaterinburg 620016

МихалевскийГ. Б.MikhalevskyG. B.

620016, Екатеринбург, ул. Академика Вонсовского, 15

15 Academician Vonsovsky St, Ekaterinburg 620016

ИвановВ. Ю.IvanovV. Yu.

620002, Екатеринбург, ул. Мира, 19

19 Mira St, Ekaterinburg, 620002

ПустоваровВ. А.PustovarovV. A.

620002, Екатеринбург, ул. Мира, 19

19 Mira St, Ekaterinburg, 620002

Институт геологии и геохимии им. А.Н. Заварицкого УрО РАНРоссияZavaritsky Institute of Geology and Geochemistry, Ural Branch of the Russian Academy of SciencesRussian FederationУральский федеральный университетРоссияUral Federal UniversityRussian Federation202214062022132610610Copyright © Щапова Ю.В., Вотяков С.Л., Михалевский Г.Б., Иванов В.Ю., Пустоваров В.А., 20222022Щапова Ю.В., Вотяков С.Л., Михалевский Г.Б., Иванов В.Ю., Пустоваров В.А.Shchapova Y.V., Votyakov S.I., Mikhalevsky G.B., Ivanov V.Y., Pustovarov V.A.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.gt-crust.ru/jour/article/view/1494

Для минерала апатита типично широкое разнообразие спектра и кинетических характеристик люминесценции; люминесцентные изображения зерен часто зональны. Разнообразие условий формирования минерала в разных типах ассоциаций и вмещающих пород способствует появлению в его структуре примесей различных ионов-люминогенов. Разнообразие люминесценции связано с примесями d-металлов, РЗЭ, разных типов анионов, а также с эффектами соактивации в различных комбинациях. В работе представлены результаты сравнительного исследования фото-, катодо- и синхротронной люминесценции фторапатита (на примере проб из хрусталеносных месторождений Неройского района, Приполярный Урал). С использованием СЭМ Jeol JSM6390LV, оборудованного приставкой Horiba H-CLUE iHR500, получены спектры катодолюминесценции фторапатита в диапазоне 200–800 нм. Впервые проанализированы спектры и кинетические характеристики люминесценции фторапатита при возбуждении синхротронным излучением вакуумного ультрафиолетового диапазона при 10 и 300 К; рассмотрена физическая природа полос возбуждения трех основных центров свечения Ce3+, Eu2+ и Mn2+; показано, что возбуждение люминесценции с передачей энергии может осуществляться в процессах, первоначально инициированных межзонными переходами или фотоионизацией. Полученные данные важны для расширения возможностей катодолюминесцентной спектроскопии зерен минерала с пространственным и спектральным разрешением и использования ее в решении прикладных минералого-геохимических задач.

Apatite is typically characterized by a wide variety of spectrum and kinetic characteristics of luminescence; luminescent images of grains are often zonal. A variety of conditions for the formation of the mineral in various types of associations and in many types of host rocks contributes to the occurrence of impurities of various luminogen ions in its structure. The variety of luminescence is associated with impurities of d-metals, REE, different types of anions, as well as with the effects of co-activation in various combinations. The paper presents the results of a comparative study of photo-, cathode- and synchrotron luminescence of apatite (by the example of samples from crystal-bearing deposits of the Neroi region, Subpolar Urals). Using a Jeol JSM6390LV SEM equipped with a Horiba H-CLUE iHR500 attachment, cathodoluminescence spectra of apatite were obtained in the 200–800 nm range. The spectra and kinetic characteristics of apatite luminescence upon excitation by synchrotron radiation at 10 and 300 K have been analyzed for the first time; the physical nature of the excitation bands of the three main luminescence centers Ce3+, Eu2+ and Mn2+ has been examined; it is shown that the luminescence excitation with the energy transfer can be carried out in processes initially initiated by interband transitions or photoionization. The data obtained are important for expanding the possibilities of mineral cathodoluminescence with spatial and spectral resolution and its use in applied problems.

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The authors declare that there are no conflicts of interest present.