globalchange  > 气候变化与战略
DOI: 10.1016/j.epsl.2021.116890
论文题名:
Gigantic eruption of a Carpathian volcano marks the largest Miocene transgression of Eastern Paratethys
作者: Danišík M.; Ponomareva V.; Portnyagin M.; Popov S.; Zastrozhnov A.; Kirkland C.L.; Evans N.J.; Konstantinov E.; Hauff F.; Garbe-Schönberg D.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2021
卷: 563
语种: 英语
中文关键词: (U-Th)/He ; Eastern Paratethys ; Gorelka tephra ; tephrochronology ; U-Pb ; zircon double-dating
英文关键词: Binary alloys ; Geochemistry ; Geochronology ; Lead alloys ; Stratigraphy ; Uranium alloys ; Zircon ; (U-th)/he ; Eastern paratethys ; Gorelkum tephrum ; Miocene ; Paratethys ; Tephras ; Tephrochronology ; U-pb ; Volcanic ash ; Zircon double-dating ; Volcanoes ; geological record ; Miocene ; paleoclimate ; paleoenvironment ; paleogeography ; Paratethys ; stratigraphic correlation ; tephra ; tephrochronology ; transgression ; uranium-lead dating ; volcanic ash ; volcanic eruption ; Carpathians
英文摘要: Volcanic ash layers (tephras) dispersed over large areas may offer important time markers in the geological record provided their age and geochemical fingerprint can be established. Accurately dated and geochemically characterized tephras are essential in correlation of temporally and spatially discontinuous geological records, which is key for paleoenvironmental, paleoclimatic, and paleogeographic reconstructions. Here we report geochronological and geochemical data for the Gorelka tephra (southwestern Russia) – a prominent tephra of uncertain age and origin that provides a key time marker for the largest marine transgression of the Eastern Paratethys Sea in the Miocene. Coupled U-Pb and (U-Th)/He dating of zircon crystals constrains the eruption age of the Gorelka tephra, and hence the age of the highest stand of Eastern Paratethys in the Miocene, to 11.5±0.5 Ma. Geochemical characteristics in combination with the new eruption age and tephra volume estimates suggest a magnitude ∼7.4 eruption from a volcanic source in the Transcarpathian region. The Gorelka tephra was transported ∼1,500 km ENE from its source by westerly winds, which were typical for the atmospheric circulation regime within the Ferrel cell in Central Europe during Sarmatian times. Based on the results presented here, the Gorelka tephra provides a reliable tie-point for paleoenvironmental and stratigraphic correlations across southeastern Europe. © 2021 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/165442
Appears in Collections:气候变化与战略

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作者单位: John de Laeter Centre, School of Earth and Planetary Sciences, Curtin University, Perth, WA 6845, Australia; Institute of Volcanology and Seismology, Piip Boulevard 9, Petropavlovsk-Kamchatsky, 683006, Russian Federation; GEOMAR Helmholtz Centre for Ocean Research Kiel, Wischhofstrasse 1-3, Kiel, 24148, Germany; V.I. Vernadsky Institute of Geochemistry and Analytical Chemistry, Kosygin St. 19, Moscow, 119991, Russian Federation; Borissiak Paleontological Institute, Profsoyuznaya Str., 123, Moscow, 117647, Russian Federation; Karpinsky Russian Geological Research Institute (VSEGEI), 74 Sredny Prospect, St. Petersburg, 199106, Russian Federation; Institute of Geography, Staromonetniy Lane. 29, Moscow, 119017, Russian Federation; Institute of Geosciences, Kiel University, Ludewig-Meyn-Strasse 10, Kiel, 24118, Germany

Recommended Citation:
Danišík M.,Ponomareva V.,Portnyagin M.,et al. Gigantic eruption of a Carpathian volcano marks the largest Miocene transgression of Eastern Paratethys[J]. Earth and Planetary Science Letters,2021-01-01,563
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