49 research outputs found
An early Little Ice Age brackish water invasion along the south coast of the Caspian Sea (sediment of Langarud wetland) and its wider impacts on environment and people
Get PDFCaspian Sea level has undergone significant changes through time with major impacts not only on the surrounding coasts, but also offshore. This study reports a brackish water invasion on the southern coast of the Caspian Sea constructed from a multi-proxy analysis of sediment retrieved from the Langarud wetland. The ground surface level of wetland is >6 m higher than the current Caspian Sea level (at -27.41 m in 2014) and located >11 km far from the coast. A sequence covering the last millennium was dated by three radiocarbon dates. The results from this new study suggest that Caspian Sea level rose up to at least -21.44 m (i.e. >6 m above the present water level) during the early Little Ice Age. Although previous studies in the southern coast of the Caspian Sea have detected a high-stand during the Little Ice Age period, this study presents the first evidence that this high-stand reached so far inland and at such a high altitude. Moreover, it confirms one of the very few earlier estimates of a high-stand at -21 m for the second half of the 14th century. The effects of this large-scale brackish water invasion on soil properties would have caused severe disruption to regional agriculture, thereby destabilizing local dynasties and facilitating a rapid Turko-Mongol expansion of Tamerlaneβs armies from the east.N Ghasemi (INIOAS), V Jahani (Gilan Province Cultural Heritage and Tourism Organisation) and A Naqinezhad (University of Mazandaran), INQUA QuickLakeH project (no. 1227) and to the European project Marie Curie, CLIMSEAS-PIRSES-GA-2009-24751
Solid-state active media of tunable organic- compound lasers pumped with a laser. II. A copper vapor laser
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Solid-state active media of tunable organic-compound lasers pumped with a laser. I. An XeCl laser
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Specific features of measuring seafloor topography with an interferometric side-looking sonar
No full textSolid-state active media of tunable organic- compound lasers pumped with a laser. II. A copper vapor laser
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(Table 8) Concentrations of particulate metals in waters of the River Kem' estuary during the ebb tide from 30 July till 05 August 2003
No full textActive media for tunable blue-green lasers based on aminocoumarins in polymethylmethacrylate
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Active media for tunable blue-green lasers based on aminocoumarins in polymethylmethacrylate
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