Articles | Volume 68, issue 2
https://doi.org/10.5194/egqsj-68-119-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/egqsj-68-119-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
24 Jul 2019
Research article |
| 24 Jul 2019
| 24 Jul 2019
Coastal lowland and floodplain evolution along the lower reaches of the Supsa River (western Georgia)
Hannes Laermanns
CORRESPONDING AUTHOR
Institute of Geography, University of Cologne, Albertus-Magnus-Platz,
50923 Cologne, Germany
Simon Matthias May
Institute of Geography, University of Cologne, Albertus-Magnus-Platz,
50923 Cologne, Germany
Daniel Kelterbaum
Institute of Geography, University of Cologne, Albertus-Magnus-Platz,
50923 Cologne, Germany
Giorgi Kirkitadze
Ilia State University, K. Cholokashvili Ave 3/5, Tbilisi 0162, Georgia
Stephan Opitz
Institute of Geography, University of Cologne, Albertus-Magnus-Platz,
50923 Cologne, Germany
Levan Navrozashvili
Ilia State University, K. Cholokashvili Ave 3/5, Tbilisi 0162, Georgia
Mikheil Elashvili
Ilia State University, K. Cholokashvili Ave 3/5, Tbilisi 0162, Georgia
Helmut Brückner
CORRESPONDING AUTHOR
Institute of Geography, University of Cologne, Albertus-Magnus-Platz,
50923 Cologne, Germany
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Linda Andrea Elisabeth Maßon, Svenja Riedesel, Stephan Opitz, Anja Zander, Anthony Bell, Hanna Cieszynski, and Tony Reimann
EGUsphere, https://doi.org/10.5194/egusphere-2025-806, https://doi.org/10.5194/egusphere-2025-806, 2025
This preprint is open for discussion and under review for Geochronology (GChron).
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We evaluate different methods for the potassium (K) concentration determination in feldspars and the impact of the K-concentrations on dose rate calculations for feldspar luminescence dating. Our results show discrepancies between published and our measured K-concentrations. Therefore, we emphasise to measure K-concentrations via bulk measurements and single-grain techniques to obtain more accurate results.
Levan Losaberidze, Giorgi Kirkitadze, Mate Akhalaia, Mikheil Lobjanidze, Michael Zimmerman, and Mikheil Elashvili
E&G Quaternary Sci. J., 73, 145–158, https://doi.org/10.5194/egqsj-73-145-2024, https://doi.org/10.5194/egqsj-73-145-2024, 2024
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The study of past environmental changes and their effects on cultures provides key information to reconstruct human–environmental interactions and model how climate change affects cultures and possible avenues of future adaptation. The Shiraki Plain is an uninhabited plain largely devoid of water resources. However, traces of extensive Bronze Age civilization with complex social organization were revealed, featuring the typology of settlements, their ages, and spatial planning.
Katharina Seeger, Philip S. J. Minderhoud, Andreas Peffeköver, Anissa Vogel, Helmut Brückner, Frauke Kraas, Nay Win Oo, and Dominik Brill
Hydrol. Earth Syst. Sci., 27, 2257–2281, https://doi.org/10.5194/hess-27-2257-2023, https://doi.org/10.5194/hess-27-2257-2023, 2023
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Accurate elevation data is essential for flood risk assessment. We assess land elevation to local mean sea level of the Ayeyarwady Delta with a new, local DEM based on geodetic data and evaluate the performance of 10 global DEMs in an SLR impact assessment. Our study reveals major differences in performance between global DEMs and consequentially introduced uncertainty in SLR impact assessments, indicating potential similar uncertainties for other data-poor coastal lowlands around the world.
Dominik Brill, Simon Matthias May, Nadia Mhammdi, Georgina King, Benjamin Lehmann, Christoph Burow, Dennis Wolf, Anja Zander, and Helmut Brückner
Earth Surf. Dynam., 9, 205–234, https://doi.org/10.5194/esurf-9-205-2021, https://doi.org/10.5194/esurf-9-205-2021, 2021
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Wave-transported boulders are important records for storm and tsunami impact over geological timescales. Their use for hazard assessment requires chronological information. We investigated the potential of a new dating technique, luminescence rock surface exposure dating, for estimating transport ages of wave-emplaced boulders. Our results indicate that the new approach may provide chronological information on decadal to millennial timescales for boulders not datable by any other method so far.
Max Engel, Stefanie Rückmann, Philipp Drechsler, Dominik Brill, Stephan Opitz, Jörg W. Fassbinder, Anna Pint, Kim Peis, Dennis Wolf, Christoph Gerber, Kristina Pfeiffer, Ricardo Eichmann, and Helmut Brückner
E&G Quaternary Sci. J., 68, 215–236, https://doi.org/10.5194/egqsj-68-215-2020, https://doi.org/10.5194/egqsj-68-215-2020, 2020
Dominik Brill, Simon Matthias May, Max Engel, Michelle Reyes, Anna Pint, Stephan Opitz, Manuel Dierick, Lia Anne Gonzalo, Sascha Esser, and Helmut Brückner
Nat. Hazards Earth Syst. Sci., 16, 2799–2822, https://doi.org/10.5194/nhess-16-2799-2016, https://doi.org/10.5194/nhess-16-2799-2016, 2016
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Sediments and landforms related to Typhoon Haiyan were documented for coastal settings on the Philippines. Sand sheets are restricted to coasts with strong inundation, while washover fans due to overtopping waves were more abundant. Wave-generated coral ridges are reported from an intertidal reef platform. As generated by an exceptional storm, documented signatures like the limited landward extent of sand sheets may potentially help to distinguish storm and tsunami in the geological record.
S. M. May, M. Engel, D. Brill, C. Cuadra, A. M. F. Lagmay, J. Santiago, J. K. Suarez, M. Reyes, and H. Brückner
Earth Surf. Dynam., 3, 543–558, https://doi.org/10.5194/esurf-3-543-2015, https://doi.org/10.5194/esurf-3-543-2015, 2015
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Block and boulder fields record catastrophic coastal flooding events and play a pivotal role in coastal hazard assessment. After Supertyphoon Haiyan on 8 Nov 2013 the transport of extremely large blocks of up to 180 t in E Samar (Philippines) was documented, indicating that hydrodynamic conditions induced by tropical cyclones, including infragravity waves, and resulting coarse-clast transport patterns may be comparable to tsunamis.
Related subject area
Paleo-environments
Holocene vegetation dynamics and sedimentation processes in a small depression on a Pleistocene plain – a multi-proxy approach for the palaeoenvironmental reconstruction of a Neolithic settlement area near Leipzig, Saxony
Diverse phenotypes of Late Glacial–Early Holocene downy birch (Betula pubescens Erh.) and the morphology of early Preboreal tree stands in southern Schleswig-Holstein
Reconstructing the Eemian to Middle Pleniglacial pedosedimentary evolution of the Baix loess–palaeosol sequence (Rhône Rift Valley, southern France) – basic chronostratigraphic framework and palaeosol characterisation
A 1100-year multi-proxy palaeoenvironmental record from Lake Höglwörth, Bavaria, Germany
Palaeoenvironmental research at Hawelti–Melazo (Tigray, northern Ethiopia) – insights from sedimentological and geomorphological analyses
Multi-method study of the Middle Pleistocene loess–palaeosol sequence of Köndringen, SW Germany
Fluvial activity of the late-glacial to Holocene “Bergstraßenneckar” in the Upper Rhine Graben near Heidelberg, Germany – first results
Investigating the loess–palaeosol sequence of Bahlingen-Schönenberg (Kaiserstuhl), southwestern Germany, using a multi-methodological approach
Holocene vegetation reconstruction in the forest–steppe of Mongolia based on leaf waxes and macro-charcoals in soils
Evaluation of geochemical proxies and radiocarbon data from a loess record of the Upper Palaeolithic site Kammern-Grubgraben, Lower Austria
The Quaternary palaeobotany of Madeira and Azores volcanic archipelagos (Portugal): insights into the past diversity, ecology, biogeography and evolution
Local mineral dust transported by varying wind intensities forms the main substrate for loess in Kashmir
Palaeoenvironmental reconstruction on the basis of Quaternary palaeo dune sequences on Fuerteventura
Reconstruction of palaeoenvironmental variability based on an inter-comparison of four lacustrine archives on the Peloponnese (Greece) for the last 5000 years
Anthropogenic and climate signals in late-Holocene peat layers of an ombrotrophic bog in the Styrian Enns valley (Austrian Alps)
The genesis of Yedoma Ice Complex permafrost – grain-size endmember modeling analysis from Siberia and Alaska
Long-term human impact and environmental change in mid-western Ireland, with particular reference to Céide Fields – an overview
Chemotaxonomic patterns of vegetation and soils along altitudinal transects of the Bale Mountains, Ethiopia, and implications for paleovegetation reconstructions – Part 1: stable isotopes and sugar biomarkers
Chemotaxonomic patterns of vegetation and soils along altitudinal transects of the Bale Mountains, Ethiopia, and implications for paleovegetation reconstructions – Part II: lignin-derived phenols and leaf-wax-derived n-alkanes
Grain-size distribution unmixing using the R package EMMAgeo
6200 years of human activities and environmental change in the northern central Alps
Christian Tinapp, Maren Gumnior, Susann Heinrich, Christoph Herbig, Saskia Kretschmer, Birgit Schneider, Harald Stäuble, and Astrid Stobbe
E&G Quaternary Sci. J., 74, 79–99, https://doi.org/10.5194/egqsj-74-79-2025, https://doi.org/10.5194/egqsj-74-79-2025, 2025
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An important multicultural Neolithic site was discovered in a lignite mine area near Leipzig in the vicinity of a former pond with organic-rich sediments. Various geoarchaeological investigations were carried out. It was possible to reconstruct the vegetation and land use history of a central German Altsiedellandschaft using a near-site pollen profile for the first time. The widespread pine forests had already diversified to mixed-oak forests due to anthropogenic use in the Atlantic period.
Sascha Krüger
E&G Quaternary Sci. J., 73, 23–40, https://doi.org/10.5194/egqsj-73-23-2024, https://doi.org/10.5194/egqsj-73-23-2024, 2024
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In reconstructing the living conditions of the late ice age and the early warm periods, archaeologists rely on palaeobotany. Since the 1940s, there has been the common image of a treeless tundra, which changes to a light birch forest within only a few years at the transition between the periods. By using environmental data, it is demonstrated that this image must be refined, and examples are given for a better understanding of palaeobotanical data and their use in archaeological reconstructions.
Nora Pfaffner, Annette Kadereit, Volker Karius, Thomas Kolb, Sebastian Kreutzer, and Daniela Sauer
E&G Quaternary Sci. J., 73, 1–22, https://doi.org/10.5194/egqsj-73-1-2024, https://doi.org/10.5194/egqsj-73-1-2024, 2024
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We present results of the Baix loess–palaeosol sequence, SE France. Reconstructed intense soil formation under warm, moist conditions before and into the last ice age and less intense soil formations in warm (temporarily moist) phases during the generally cold, dry ice age were validated with laboratory and dating techniques. This is particularly relevant as Baix is located in the temperate–Mediterranean climate transition zone, a sensitive zone that is susceptible to future climate changes.
Sudip Acharya, Maximilian Prochnow, Thomas Kasper, Linda Langhans, Peter Frenzel, Paul Strobel, Marcel Bliedtner, Gerhard Daut, Christopher Berndt, Sönke Szidat, Gary Salazar, Antje Schwalb, and Roland Zech
E&G Quaternary Sci. J., 72, 219–234, https://doi.org/10.5194/egqsj-72-219-2023, https://doi.org/10.5194/egqsj-72-219-2023, 2023
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This study presents a palaeoenvironmental record from Lake Höglwörth, Bavaria, Germany. Before 870 CE peat deposits existed. Erosion increased from 1240 to 1380 CE, followed by aquatic productivity and anoxia from 1310 to 1470 CE. Increased allochthonous input and a substantial shift in the aquatic community in 1701 were caused by construction of a mill. Recent anoxia has been observed since the 1960s.
Jacob Hardt, Nadav Nir, Christopher Lüthgens, Thomas M. Menn, and Brigitta Schütt
E&G Quaternary Sci. J., 72, 37–55, https://doi.org/10.5194/egqsj-72-37-2023, https://doi.org/10.5194/egqsj-72-37-2023, 2023
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We investigated the geomorphological and geological characteristics of the archaeological sites Hawelti–Melazo and the surroundings. We performed sedimentological analyses, as well as direct (luminescence) and indirect (radiocarbon) sediment dating, to reconstruct the palaeoenvironmental conditions, which we integrated into the wider context of Tigray.
Lea Schwahn, Tabea Schulze, Alexander Fülling, Christian Zeeden, Frank Preusser, and Tobias Sprafke
E&G Quaternary Sci. J., 72, 1–21, https://doi.org/10.5194/egqsj-72-1-2023, https://doi.org/10.5194/egqsj-72-1-2023, 2023
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The loess sequence of Köndringen, Upper Rhine Graben, comprises several glacial–interglacial cycles. It has been investigated using a multi-method approach including the measurement of colour, grain size, organic matter, and carbonate content. The analyses reveal that the sequence comprises several fossil soils and layers of reworked soil material. According to luminescence dating, it reaches back more than 500 000 years.
Max Engel, Felix Henselowsky, Fabian Roth, Annette Kadereit, Manuel Herzog, Stefan Hecht, Susanne Lindauer, Olaf Bubenzer, and Gerd Schukraft
E&G Quaternary Sci. J., 71, 213–226, https://doi.org/10.5194/egqsj-71-213-2022, https://doi.org/10.5194/egqsj-71-213-2022, 2022
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The late-glacial Bergstraßenneckar is a former course of the Neckar River in the Upper Rhine Graben of southwest Germany at a time when the confluence with the Rhine river was 50 km further to the north. The former river bends are still visible in topographic maps and satellite imagery. Sediment cores and geophysical measurements from the former river channels let us reconstruct the shift from a running river to silting-up meanders and permit us to date this to ca. 11 000 to 10 500 years ago.
Tabea Schulze, Lea Schwahn, Alexander Fülling, Christian Zeeden, Frank Preusser, and Tobias Sprafke
E&G Quaternary Sci. J., 71, 145–162, https://doi.org/10.5194/egqsj-71-145-2022, https://doi.org/10.5194/egqsj-71-145-2022, 2022
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A loess sequence in SW Germany was investigated using a high-resolution multi-method approach. It dates to 34–27 ka and comprises layers of initial soil formation. Drier conditions and a different atmospheric circulation pattern during the time of deposition are expected as the soil layers are less strongly developed compared to similar horizons further north. Dust accumulation predates the last advance of Alpine glaciers, and no loess deposition is recorded for the time of maximum ice extent.
Marcel Lerch, Julia Unkelbach, Florian Schneider, Michael Zech, and Michael Klinge
E&G Quaternary Sci. J., 71, 91–110, https://doi.org/10.5194/egqsj-71-91-2022, https://doi.org/10.5194/egqsj-71-91-2022, 2022
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Charcoals and leaf waxes from vegetation accumulate in the soil and provide information about past vegetation because they are mostly resistant against physical and biological degradation. Analyzing and comparing ratios of both element types helped us to improve the evidence for vegetation reconstruction. We found that the accumulation processes and preservation of these elements depend on different environmental conditions at forest- and steppe-dominated sites in the Mongolian forest–steppe.
Lilian Reiss, Christian Stüwe, Thomas Einwögerer, Marc Händel, Andreas Maier, Stefan Meng, Kerstin Pasda, Ulrich Simon, Bernd Zolitschka, and Christoph Mayr
E&G Quaternary Sci. J., 71, 23–43, https://doi.org/10.5194/egqsj-71-23-2022, https://doi.org/10.5194/egqsj-71-23-2022, 2022
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We aim at testing and evaluating geochemical proxies and material for radiocarbon dating for their reliability and consistency at the Palaeolithic site Kammern-Grubgraben (Lower Austria). While carbonate and organic carbon contents are interpreted in terms of palaeoclimate variability, pedogenic carbonates turned out to be of Holocene age. As a consequence, the proxy data assessed here are differentially suitable for environmental reconstructions.
Carlos A. Góis-Marques
E&G Quaternary Sci. J., 70, 197–199, https://doi.org/10.5194/egqsj-70-197-2021, https://doi.org/10.5194/egqsj-70-197-2021, 2021
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Palaeobotanical research on oceanic islands has been largely ignored despite its importance for providing empirical proofs to disentangle insular plant diversity, evolution, ecology and biogeography. Here we explore the oceanic archipelagos of Madeira and the Azores to demonstrate the existence of well-preserved and palaeobiologically informative plant fossils.
Christian Zeeden, Jehangeer Ahmad Mir, Mathias Vinnepand, Christian Laag, Christian Rolf, and Reyaz Ahmad Dar
E&G Quaternary Sci. J., 70, 191–195, https://doi.org/10.5194/egqsj-70-191-2021, https://doi.org/10.5194/egqsj-70-191-2021, 2021
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We investigate two loess–palaeosol sequences in Kashmir. Magnetic enhancement of the loess was strong during stadial phases. Besides classical magnetic enhancement, wind vigour suggests partly strong winds. Grain sizes are dominantly in the silt range and comparable to data from central Asia, which do not suggest transport over high mountain ranges as required for non-local sources in Kashmir. Therefore, we suggest that the Kashmir loess is predominantly of local origin.
Christopher-Bastian Roettig
E&G Quaternary Sci. J., 69, 161–163, https://doi.org/10.5194/egqsj-69-161-2020, https://doi.org/10.5194/egqsj-69-161-2020, 2020
Joana Seguin, Pavlos Avramidis, Annette Haug, Torben Kessler, Arndt Schimmelmann, and Ingmar Unkel
E&G Quaternary Sci. J., 69, 165–186, https://doi.org/10.5194/egqsj-69-165-2020, https://doi.org/10.5194/egqsj-69-165-2020, 2020
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We present two new palaeolake archives of Pheneos and Kaisari, Peloponnese, and compare them with records from Stymphalia and Asea by applying the same set of analyses to all sites. We focus on different spatial scales to estimate the validity range of the proxy signals. Geochemical ratios depict hydrological variation and environmental changes over the last 5000 years. They indicate drier phases, but timing and duration vary, which may be explained by site-specific ecosystem responses.
Wolfgang Knierzinger, Ruth Drescher-Schneider, Klaus-Holger Knorr, Simon Drollinger, Andreas Limbeck, Lukas Brunnbauer, Felix Horak, Daniela Festi, and Michael Wagreich
E&G Quaternary Sci. J., 69, 121–137, https://doi.org/10.5194/egqsj-69-121-2020, https://doi.org/10.5194/egqsj-69-121-2020, 2020
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We present multi-proxy analyses of a 14C-dated peat core covering the past ⁓5000 years from the ombrotrophic Pürgschachen Moor. Pronounced increases in cultural indicators suggest significant human activity in the Bronze Age and in the period of the late La Tène culture. We found strong, climate-controlled interrelations between the pollen record, the humification degree and the ash content. Human activity is reflected in the pollen record and by heavy metals.
Lutz Schirrmeister, Elisabeth Dietze, Heidrun Matthes, Guido Grosse, Jens Strauss, Sebastian Laboor, Mathias Ulrich, Frank Kienast, and Sebastian Wetterich
E&G Quaternary Sci. J., 69, 33–53, https://doi.org/10.5194/egqsj-69-33-2020, https://doi.org/10.5194/egqsj-69-33-2020, 2020
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Late Pleistocene Yedoma deposits of Siberia and Alaska are prone to degradation with warming temperatures.
Multimodal grain-size distributions of >700 samples indicate varieties of sediment production, transport, and deposition.
These processes were disentangled using robust endmember modeling analysis.
Nine robust grain-size endmembers characterize these deposits.
The data set was finally classified using cluster analysis.
The polygenetic Yedoma origin is proved.
Michael O'Connell, Karen Molloy, and Eneda Jennings
E&G Quaternary Sci. J., 69, 1–32, https://doi.org/10.5194/egqsj-69-1-2020, https://doi.org/10.5194/egqsj-69-1-2020, 2020
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Long-term environmental change in Co. Mayo, on the mid-Atlantic seaboard of Ireland, is discussed. Pollen diagrams and bog pine, dated by 14C and dendrochronology, provide evidence for woodlands, farming and climate change. Intensive farming is dated to the early Neolithic (3800–3400 BC) prior to wide-scale spread of blanket bog. Construction of the peat-covered, stone-wall field system at Céide Fields occurred at this time which is unexpectedly early. Bronze and Iron Age activity is detailed.
Betelhem Mekonnen, Wolfgang Zech, Bruno Glaser, Bruk Lemma, Tobias Bromm, Sileshi Nemomissa, Tamrat Bekele, and Michael Zech
E&G Quaternary Sci. J., 68, 177–188, https://doi.org/10.5194/egqsj-68-177-2019, https://doi.org/10.5194/egqsj-68-177-2019, 2019
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The study evaluates the ability of stable isotopes (δ13C and δ15N) and sugar biomarkers to distinguish Erica from the dominant vegetation of the Bale Mountains in order to reconstruct the past extent of Erica on the Sanetti Plateau. No significant differences in stable isotopes are found between the dominant plant species. Although Erica is characterized by quite high (G+M)/(A+X) ratios, it cannot be unambiguously distinguished from other plants due to degradation and soil microbial effects.
Bruk Lemma, Betelhem Mekonnen, Bruno Glaser, Wolfgang Zech, Sileshi Nemomissa, Tamrat Bekele, Lucas Bittner, and Michael Zech
E&G Quaternary Sci. J., 68, 189–200, https://doi.org/10.5194/egqsj-68-189-2019, https://doi.org/10.5194/egqsj-68-189-2019, 2019
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Chemotaxonomic identification of keystone plant species in the Bale Mountains are possible using lignin phenols. However, Erica could not be differentiated chemotaxonomically from all other investigated plants using n-alkanes. Unambiguous characteristic patterns of lignin phenols reflected in the plant samples were not sustained in the organic layers and mineral topsoils. This is due to degradation and organic matter inputs by roots. Therefore, the past extent of Erica is still speculative.
Elisabeth Dietze and Michael Dietze
E&G Quaternary Sci. J., 68, 29–46, https://doi.org/10.5194/egqsj-68-29-2019, https://doi.org/10.5194/egqsj-68-29-2019, 2019
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Sedimentary deposits provide insights into past Earth surface dynamics via the size distribution of mineral grains documenting the erosion, transport and deposition history. This study introduces structured procedures to decipher the distinct grain-size distributions of sediment samples that were mixed during/after deposition, using the free statistical tool EMMAgeo. Compared with other algorithms, EMMAgeo is unique as it provides uncertainty estimates and allows expert knowledge to be included.
Clemens von Scheffer, Annika Lange, François De Vleeschouwer, Joachim Schrautzer, and Ingmar Unkel
E&G Quaternary Sci. J., 68, 13–28, https://doi.org/10.5194/egqsj-68-13-2019, https://doi.org/10.5194/egqsj-68-13-2019, 2019
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By using geochemical and pollen data, this study wanted to close knowledge gaps on the interconnection of climate, environment and human impact in the Kleinwalser Valley (Kleinwalsertal, northern central Alps) over the past 6200 years. For a long time, the Walser people were believed to be the first settlers, who cultivated the valley. However, humans have recurrently used and modified the landscape for at least 5500 years by burning or cutting down forests and practicing pasture management.
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Short summary
The landscape on the Black Sea coast of Georgia has changed significantly during the last few millennia. By using granulometric and geochemical analyses, we reconstructed significant sea level, coastline and palaeoenvironmental changes that have taken place in the surroundings of the Supsa fan since at least 4000 BCE.
The landscape on the Black Sea coast of Georgia has changed significantly during the last few...
