Advances in the luminescence dating: the optically stimulated luminescence based procedures and their physical background/Progress luminestsentsdateerimise vallas: optiliselt stimuleeritud luminestsentsi protseduurid ja nende fuusikalised alused/[TEXT NOT REPRODUCIBLE IN ASCII]
A review of the achievements made during the last decade in the study of the energy accumulation and transformation processes in quartz and alkali feldspars, used as natural palaeodosimeters, is given. It is shown how the obtained results have contributed to the application of optical dating through...
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| Published in | Proceedings of the Estonian Academy of Sciences. Geology Vol. 50; no. 4; p. 214 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
Estonian Academy Publishers
01.12.2001
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| Online Access | Get full text |
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| Summary: | A review of the achievements made during the last decade in the study of the energy accumulation and transformation processes in quartz and alkali feldspars, used as natural palaeodosimeters, is given. It is shown how the obtained results have contributed to the application of optical dating through the use of alkali feldspars, finding more effective spectral regions of stimulation, and choice of optimal powers and duration of the stimulating impulses. The strong and weak points of the measuring procedures used in optical dating are analysed and the corresponding new high-sensitivity apparatus is introduced. It appears that, in the case of a reasonable choice of the parameters of stimulating impulses, the presently used multiple-aliquots method is in every way competitive with the new methods. Key words: natural palaeodosimeters, optically stimulated luminescence, dating procedure. On antud ulevaade looduslike paleodosimeetritena tuntud kvartsis ja leelispaevakivides toimuvate energiasalvestus- ja transformatsiooniprotsesside uurimisel viimase kumne aasta jooksul saavutatust ning naidatud, kuidas saadud tulemused aitasid laiendada optilise dateerimise rakendusvoimalusi: on leitud efektiivsemaid stimulatsiooni spektraalpiirkondi ning valitud optimaalseid stimuleerivate impulsside kestusi ja voimsusi. On analuusitud uute optilise dateerimise mootmisprotseduuride (protokollide) tugevaid ja norku kulgi, pidades silmas esmajoones uksikkatsendi ja uksiktera protseduure. On tutvustatud vastavat uut, suure tundlikkusega aparatuuri. Esitatust nahtub, et stimuleerivate impulsside parameetrite moistlikul valikul on seni laialt kasutatav mitme katsendi meetod taiesti konkurentsivoimeline uusimate meetoditega vorreldes. |
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| ISSN: | 1406-0132 |