| Инд. авторы: | Alekseev D.V., Travin A.V. |
| Заглавие: | Measurement and approximation of the age spectra of rocks and minerals during Ar-40/Ar-39 dating |
| Библ. ссылка: | Alekseev D.V., Travin A.V. Measurement and approximation of the age spectra of rocks and minerals during Ar-40/Ar-39 dating // Russian Geology and Geophysics. - 2017. - Vol.58. - Iss. 10. - P.1232-1239. - ISSN 1068-7971. - EISSN 1878-030X. |
| Идентиф-ры: | DOI: 10.1016/j.rgg.2016.09.035; РИНЦ: 32873883; WoS: 000413626200008; |
| Реферат: | eng: During Ar-40/Ar-39 dating, the age spectrum of the sample can be seriously distorted due to averaging of its Ar isotope composition over the fraction of gas released during the measurements. New methods of age spectrum approximation with suppression of distortions have been developed. The efficiency of these methods is experimentally demonstrated. A new high-resolution method for measuring age spectra from the fraction of gas released is proposed. This method is based on experimental data and permits refining the age spectrum or its fragments. The applicability and efficiency of this method are also shown experimentally. The proposed measurement method can be used not only to measure age spectra during Ar-40/Ar-39 dating but also to measure other isotope characteristics of rock and mineral samples during stepwise separation of analytes. (C) 2017, V.S. Sobolev IGM, Siberian Branch of the RAS. Published by Elsevier B.V. All rights reserved.
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| Ключевые слова: | Fredholm integral equation; inverse problem; HISTORY; Ar-40/Ar-39 dating; age spectrum; CONSTRAINTS; |
| Издано: | 2017 |
| Физ. хар-ка: | с.1232-1239 |