气候变化领域集成服务门户(CCPortal): Multiproxy reconstruction of the middle Miocene Požega palaeolake in the Southern Pannonian Basin (NE Croatia) prior to the Badenian transgression of the Central Paratethys Sea

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DOI	10.1016/j.palaeo.2018.12.003
	Multiproxy reconstruction of the middle Miocene Požega palaeolake in the Southern Pannonian Basin (NE Croatia) prior to the Badenian transgression of the Central Paratethys Sea
	Mandic O.; Hajek-Tadesse V.; Bakrač K.; Reichenbacher B.; Grizelj A.; Miknić M.
发表日期	2019
ISSN	0031-0182
起始页码	203
结束页码	219
卷号	516
英文摘要	The Pannonian Basin of Croatia is the largest back-arc extensional basin on the European continent, located between the Alps, Carpathians and Dinarides. Syn-rift subsidence started at ~18 Ma and predated the onset of the Miocene Climate Optimum (MCO; 17–14.7 Ma). In this paper, we investigate the evolution of the fluvial-lacustrine palaeoenvironment just prior to the transgression of the Central Paratethys Sea. Studies are based on a 17-m-thick section of the Požega palaeolake in the Southern Pannonian Basin using palaeobiological (mollusks, ostracods, palynomorphs, fish otoliths), mineralogical and sedimentological data. Our results reveal fluctuating freshwater and brackish conditions and a pulsating water budget, which we relate to phases in which the basin was, alternatively, hydrologically open and closed. We infer that the alternating environmental conditions can be best-explained by dry and wet periods, respectively. Droughts produced stagnant conditions, algae overproduction and increased salinity levels, supporting the survival of sporadically invading brackish water species. The wet periods, on the other hand, led to lake highstand episodes, expansion of lake area, and to the widespread development of profundal facies. The lake basin eventually became overfilled and connected through outflowing rivers with the Central Paratethys sea. However, the absence of brackish-marine assemblages in the Požega palaeolake nevertheless indicates that there was no marine water inflow from the Central Paratethys at that time. © 2018 Elsevier B.V.
英文关键词	Burdigalian-Langhian; Central Paratethys; Miocene Climate Optimum; Palaeoecology; Palaeogeography; Palaeolimnology
语种	英语
scopus关键词	backarc basin; Badenian; extensional tectonics; Miocene; paleoecology; paleoenvironment; paleogeography; paleolimnology; Paratethys; proxy climate record; reconstruction; subsidence; transgression; Alps; Alps; Carpathians; Croatia; Dinaric Alps; Eastern Alps; Pannonian Basin; Pozega Valley; algae; Ega; Mollusca; Ostracoda
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151098
作者单位	Geological-Palaeontological Department, Natural History Museum Vienna, Burgring 7, Wien, 1010, Austria; Croatian Geological Survey, Sachsova 2, Zagreb, 10 000, Croatia; Department of Earth and Environmental Sciences, Ludwig-Maximilian-University, Richard-Wagner Str. 10, Munich, 80333, Germany
推荐引用方式 GB/T 7714	Mandic O.,Hajek-Tadesse V.,Bakrač K.,et al. Multiproxy reconstruction of the middle Miocene Požega palaeolake in the Southern Pannonian Basin (NE Croatia) prior to the Badenian transgression of the Central Paratethys Sea[J],2019,516.
APA	Mandic O.,Hajek-Tadesse V.,Bakrač K.,Reichenbacher B.,Grizelj A.,&Miknić M..(2019).Multiproxy reconstruction of the middle Miocene Požega palaeolake in the Southern Pannonian Basin (NE Croatia) prior to the Badenian transgression of the Central Paratethys Sea.Palaeogeography, Palaeoclimatology, Palaeoecology,516.
MLA	Mandic O.,et al."Multiproxy reconstruction of the middle Miocene Požega palaeolake in the Southern Pannonian Basin (NE Croatia) prior to the Badenian transgression of the Central Paratethys Sea".Palaeogeography, Palaeoclimatology, Palaeoecology 516(2019).