Search results for "palaeoshoreline"

showing 3 items of 3 documents

Can vegetation provide indications of ancient lake shorelines after more than one hundred years? A case study of Iskander-kul Lake, Tajikistan

2017

Abstract Bioindication is a common approach to assess and evaluate environmental changes over both short or long periods of time. Here we attempt to highlight that vegetation can provide indications of the palaeoshoreline of Lake Iskander-kul, even after at least 150 years. It is an example of a dammed lake that was created by a huge mass rockfall as a result of a strong earthquake during the late Pleistocene. Applying the two way indicator species analysis (TWINSPAN) we found that the shrubby vegetation is the particular one that can still effectively thrive along the palaeoshoreline despite the lake downlift. Using the phi coefficient as a fidelity measure for certain vegetation type, we …

0106 biological sciencesSteppeGeneral Decision Sciences010603 evolutionary biology01 natural sciencesVegetation typeScreeFestuca valesiacaEcology Evolution Behavior and Systematicspalaeoshorelinegeographygeography.geographical_feature_categoryEcologybiologyAncient lakeEcologyphytoindicationPlant communityenvironmental changeVegetationbiology.organism_classificationhydrological changesplant communitiesTwo-way indicator species analysis010606 plant biology & botanyEcological Indicators
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Palaeogeographical evolution of the Egadi Islands (western Sicily, Italy). Implications for late Pleistocene and early Holocene sea crossings by huma…

2019

Abstract The continental shelf morphology offshore of western Sicily suggests that during the Last Glacial Maximum (LGM, 20 ka cal BP), two of the Egadi Islands, Favignana and Levanzo, were connected to Sicily by a wide emerged plain, while Marettimo was only separated from the other islands by a narrow channel. We studied the relative sea-level variation from the LGM until today, focussing on two important time slices: the Mesolithic (9.5–13 ka cal BP) and the Neolithic (6.5–7.5 ka cal BP). In this research, we discuss a sea-level rise model by means of geomorphological, archaeological and geophysical observations and new radiocarbon dating of marine and terrestrial fossil fauna. The resul…

Mediterranean climatePalaeoshorelineDwarf elephantsSettore GEO/02 - Geologia Stratigrafica E Sedimentologica010504 meteorology & atmospheric sciencesPleistoceneSettore GEO/03 - Geologia StrutturaleFaunaDwarf elephants; Egadi archipelago; Food remains; Mammals; Marine geological data; Mediterranean voyaging; Palaeogeographical reconstruction; Palaeoshorelines; Vertical tectonic movements010502 geochemistry & geophysics01 natural sciencesMammallaw.inventionPaleontologylawVertical tectonic movementMediterranean voyagingRadiocarbon datingPalaeoshorelinesMesolithicHolocene0105 earth and related environmental sciencesMammalsgeographygeography.geographical_feature_categoryContinental shelfLast Glacial MaximumFood remainDwarf elephantPalaeogeographical reconstructionGeneral Earth and Planetary SciencesFood remainsMarine geological dataEgadi archipelagoEarth and Planetary Sciences (all)Vertical tectonic movementsEarth-Science Reviews
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Human settlements in the Mediterranean and the sea level changes from 12 ka to the present

2012

Understanding past sea-level change plays an important role in determining the underlying causes, and also allows the extrapolation of past sea levels to locations and epochs for which there are no instrumental data. A compilation of global sea-level estimates based on deep-sea oxygen isotope ratios at millennial-scale resolution or higher was published since ‘70. These global sea level curves do not take in account isostasy and tectonics. Observed sea level change can be reconstructed from dated fossils, coral reef terraces, speleothems, emerged and forming terraces on coastal areas, archaeological and other markers well connected with sea level. Because of the lack of coral reefs in the M…

Mediterranean climatePalaeoshorelinesea level rise; palaeoshorelines; late pleistocene; palaeoshorelines.; holoceneHoloceneSettore GEO/04 - Geografia Fisica E GeomorfologiaHolocene Late Pleistocene Sea level rise PalaeoshorelinesHolocene; Late pleistocene; Palaeoshorelines; Sea level rise; GeologyGeologyLate pleistoceneSea level riseOceanographyGeographySea level riseLate PleistoceneHuman settlementPalaeoshorelinesHoloceneSea levelPalaeoshorelines.
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