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Application of the authigenic Be-10/Be-9 dating method to Late Miocene-Pliocene sequences in the northern Danube Basin (Pannonian Basin System): Confirmation of heterochronous evolution of sedimentary environments

机译:自成体系的Be-10 / Be-9测年方法在多瑙河北部北部中新世—上新世层序中的应用(潘诺尼亚盆地系统):沉积环境异时演化的确认

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摘要

Authigenic Be-10/Be-9 dating method was applied to lacustrine, deltaic and alluvial sequences of the northern Danube Basin (Pannonian Basin System), to bridge the insufficiency of geochronological data for the Late Miocene to Pliocene period. The measurements of 51 samples (both lacustrine and floodplain), ranging from 11.6 to 0.95 Ma are consistent with the existing magnetostratigraphic and biostratigraphic data standing mainly on the evolution degree of endemic mollusk fauna, mammals and dinocysts. This agreement confirms our assumption that the incoming beryllium fluxes remained constant over the studied time period and thus that the two initial Be-10/Be-9 ratios determined in actual Holocene/Late Pleistocene sediments (lacustrine and floodplain) are valid for these environments.
机译:对北多瑙河流域(潘诺尼亚盆地系统)的湖相,三角洲和冲积层序采用了自成一体的Be-10 / Be-9测年方法,以弥补中新世晚期至上新世时期的年代学资料不足。对51个样品(湖相和洪泛区)的测量范围为11.6至0.95 Ma,这与现有的磁地层学和生物地层学数据一致,主要集中在地方性软体动物,哺乳动物和恐龙囊的演化程度。该协议证实了我们的假设,即进入的铍通量在研究期间内保持恒定,因此,在实际全新世/晚更新世沉积物中(湖相和洪泛区)确定的两个初始Be-10 / Be-9比值对这些环境有效。

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