Инд. авторы: | Izokh O.P., Izokh N.G., Saraev S.V., Dokukina G.A. |
Заглавие: | C isotopic variations in the lower-middle Frasnian (lower Upper Devonian) of the Rudny Altai |
Библ. ссылка: | Izokh O.P., Izokh N.G., Saraev S.V., Dokukina G.A. C isotopic variations in the lower-middle Frasnian (lower Upper Devonian) of the Rudny Altai // Geological Magazine. - 2015. - Vol.152. - Iss. 3. - P.565-571. - ISSN 0016-7568. - EISSN 1469-5081. |
Внешние системы: | DOI: 10.1017/S0016756814000703; РИНЦ: 24023075; SCOPUS: 2-s2.0-84927690673; WoS: 000356054000012; |
Реферат: | eng: We conducted isotope-geochemical studies of the Upper Devonian of the Rudny Altai. Whole-rock carbon isotope analyses of the studied section represented by carbonate fore-reef facies reveal a negative excursion at the base of punctata Zone. When compared to conodont biofacies turnovers and the Upper Devonian events chart, the new data have demonstrated a synchronism between the negative excursion and the coeval decline in conodont biodiversity corresponding to the Middlesex anoxic event of the Frasnian Stage of the Upper Devonian.
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Ключевые слова: | STRATIGRAPHY; PERTURBATION; CHEMOSTRATIGRAPHY; carbon isotopes; TRANSITION; POLISH CARBONATE SHELF; Middlesex; Upper Devonian; biofacies; EVENT; conodonts; |
Издано: | 2015 |
Физ. характеристика: | с.565-571 |