Phone: +4938344204526 Address: University of Greifswald Institute for Geography and Geology Physical Geography Friedrich-Ludwig-Jahn-Straße 16 D-17487 Greifswald Germany
Die 35. Hauptversammlung der Deutschen Quartärvereinigung DEUQUA fand in der Zeit vom 13.–17. Sep... more Die 35. Hauptversammlung der Deutschen Quartärvereinigung DEUQUA fand in der Zeit vom 13.–17. September mit mehr als 180 Teilnehmern aus 16 Ländern in Greifswald statt.
ABSTRACT The focus of this study is on the geochronological and paleoclimatic characterization of... more ABSTRACT The focus of this study is on the geochronological and paleoclimatic characterization of Pleistocene glaciation in central (Khangai Mountains) and western (Turgen Mountains, Mongolian Altai) Mongolia. These two mountain ranges form a 700 km long SE-NW transect through Mongolia and allow assumptions of the temporal and causal dynamics of regional glaciation and their correlation to other mountain glacier records from Central and High Asia. In order to evaluate the Pleistocene glaciations in Mongolia we undertook geomorphological mapping and cosmogenic radionuclide (CRN) surface exposure dating (10Be) in four valley systems located in the Khangai Mountains and Turgen Mountains. In total 46 glacial boulders and roche moutonnées were sampled, prepared and AMS measured to determine their 10Be surface exposure ages. Of these, 26 samples were obtained from the Khangai Mountains (three separate moraine sequences) and 20 samples were taken from the Turgen Mountains (one moraine sequence). Our results give evidence of major ice advances during early MIS-4 (74−71 ka) and MIS-2 (25−20 and 18− 17 ka) in both mountain ranges. However, in the Khangai Mountains of central Mongolia very significant ice advances also occurred during MIS-3 (37−32 ka), which exceeded the ice limits set during the MIS-2 glaciation. These results show that climatic conditions during phases of insolation minima characterized by extremely cold and dry conditions (MIS-4 and MIS-2) produced a favorable setting for major ice expansion in Mongolia. Yet, glacial accumulation in the Khangai Mountains also increased substantially in response to the cool-wet conditions of MIS-3, associated with a possibly greater-than-today input from winter precipitation. These records indicate that in addition to the thermally induced glaciations of MIS-4 and MIS-2, variations in atmospheric moisture supply are also capable of triggering large ice advances as observed during MIS-3. Taken together, this suggests that the role of atmospheric circulation and its significance for controlling regional precipitation results in a more differentiated pattern of late Pleistocene glaciation in Mongolia than previously recognized. Compared to other glacial records from High Asia, the observed patterns of past glaciations in Mongolia show similar results (i.e. ice maxima during interstadial wet phases) compared to monsoon influenced regions in southern Central Asia and NE-Tibet, while major expansion during insolation minima (MIS-4 and MIS-2) are more in tune with glacier responses known from western Central Asia and Siberia.
The Tollense valley in northeast Germany is well known for its substantial evidence indicating a ... more The Tollense valley in northeast Germany is well known for its substantial evidence indicating a violent conflict dated to the early 13th century BC (Period III of the Nordic Bronze Age). This article presents a significant new find from a later Bronze Age context, found in the river at a known Bronze Age valley crossing (site Weltzin 13) by Ronald Borgwardt in 2020. The small bronze figurine (14.7 cm tall) has an egg-shaped head with a prominent nose, looped arms, a neckring, two knobs signifying breasts, a belt, an indication of a female sex and two slightly differently shaped legs. In the 19th century a similar female statuette was found near the village of Klein Zastrow, just a few kilometres from the valley crossing, but mostly these figurines are known from Zealand and Scania. Belts are only present on the statuettes from Zealand and northern Germany, and their presence suggests a close connection between the figures from these areas. Typological evidence places the figure fro...
Im Rahmen der Forschungen zum bronzezeitlichen Schlachtfeld im Tollensetal (Mecklenburg-Vorpommer... more Im Rahmen der Forschungen zum bronzezeitlichen Schlachtfeld im Tollensetal (Mecklenburg-Vorpommern, 13. Jh. v.u.Z.) wurden bislang Uberreste von mehr als 130 jungen Mannern entdeckt, die perimortale wie auch verheilte Verletzungen zeigen. Dazu kommen Waffenfunde der selben Zeitphase, hauptsachlich Pfeilspitzen aus Flint und Bronze sowie holzerne Keulen. Das Fundmaterial stammt von diversen Fundplatzen entlang eines mehr als 2,5 km langen Flussabschnitts. Die Fundplatze Weltzin 13 und Kessin 12 markieren den Beginn dieser Ausdehnung am westlichen bzw. ostlichen Flussufer mit dem Auftreten erster menschlicher Skelettreste des Schlachtfeldhorizonts, teils auch mit Verletzungen, sowie Waffenfunden. Zugleich stellt dieser Talabschnitt aufgrund seiner topographischen Situation eine gunstige Moglichkeit zur Querung des Flusstales dar. Fundmaterial vom Neolithikum bis zum Mittelalter aus diesem Bereich unterstreicht die Bedeutung dieses wohl uber Jahrtausende zur Querung genutzten Flusstala...
Chance discoveries of weapons, horse bones and human skeletal remains along the banks of the Rive... more Chance discoveries of weapons, horse bones and human skeletal remains along the banks of the River Tollense led to a campaign of research which has identified them as the debris from a Bronze Age battle. The resources of war included horses, arrowheads and wooden clubs, and the dead had suffered blows indicating face-to-face combat. This surprisingly modern and decidedly vicious struggle took place over the swampy braided streams of the river in an area of settled, possibly coveted, territory. Washed along by the current, the bodies and weapons came to rest on a single alluvial surface.
Zusammenfassung: Das Tollensetal in Nordostdeutschland ist bekannt für die Zeugnisse eines Gewalt... more Zusammenfassung: Das Tollensetal in Nordostdeutschland ist bekannt für die Zeugnisse eines Gewaltkonfliktes aus dem frühen 13 Jh. v. Chr. (Nordische Bronzezeit, Periode III). In diesem Aufsatz wird ein Neufund aus der jüngeren Bronzezeit vorgestellt, den Ronald Borgwardt im Sommer 2020 im Fluss an einer bereits bekannten bronzezeitlichen Talquerung (Fpl. Weltzin 13) entdeckt hat. Die Bronzefigur (Länge 14,7 cm) zeigt u. a. einen eiförmigen Kopf mit prominent geformter Nase, geschwungene Arme, einen Halsring, zwei Knubben für die Brüste, einen Gürtel, eine Markierung des weiblichen Geschlechts und zwei leicht unterschiedlich geformte Beine. Im 19. Jh. wurde eine ähnliche weibliche Statuette einige Kilometer entfernt bei Klein Zastrow entdeckt, aber die meisten Figuren dieser Art sind von Seeland und aus Schonen bekannt. Nur Statuetten der Insel Seeland und aus Vorpommern haben einen Gürtel und dies spricht für eine enge Verbindung der Figuren aus diesen Gebieten. Typologische Argumente datieren die Statuette aus der Tollense in die späte Bronzezeit (Periode V-VI). Vor einigen Jahren wurden die Figuren als mögliche Gewichte diskutiert, aber ihre
ABSTRACT The Wda River valley in northern Poland is a polygenetic valley located in a former subg... more ABSTRACT The Wda River valley in northern Poland is a polygenetic valley located in a former subglacial meltwater channel that after ice sheet retreat hosted separate and then interconnected lake basins, subsequently replaced by a river. In one part of the river system an abandoned Lateglacial valley is found. This dry valley is a unique feature in the area located within the limit of the Scandinavian Ice Sheet during the Last Glaciation in the Central European Lowland. We investigated lacustrine and fluvial sediments and landforms in the valley and applied palynological analysis combined with radiocarbon dating to reconstruct the valley evolution from the early period of river inception in the Lateglacial through the formation of lakes during the Pleistocene/Holocene transition up to the establishment of a modern river system in the early Holocene. Three coeval processes were identified: (1) formation of lake basins in the subglacial channel connected by a river, (2) erosion of the river bed between the lakes, and (3) sediment deposition at the mouths of the channels in the lake basins first generating delta fans and eventually filling the lakes entirely. The valley formation was associated with diachronous melting of dead ice blocks buried in the subglacial channel controlled by the capacity of the hydrological system to evacuate the meltwater. Most of the lake basins in the study area were formed during the Bølling–Allerød period, but one section of the subglacial channel not affected by thermokarst processes survived protected by dead ice blocks throughout the entire Lateglacial. Accelerated dead-ice decay at the beginning of the Holocene triggered widespread lowering of the base level, which caused lake disappearance and the formation of the modern river system. The processes reconstructed in the central section of the Wda River indicate a highly dynamic and diachronous river valley development during the Lateglacial and early Holocene whereby the valley formation was interwoven with the formation of lake basins within the valley triggered by melting of dead ice blocks in the substratum.
Mit 113, 5 km2 Wasserfläche und einem Einzugsgebiet von 1230 km2 ist die Müritz (62 m HN) der zw... more Mit 113, 5 km2 Wasserfläche und einem Einzugsgebiet von 1230 km2 ist die Müritz (62 m HN) der zweitgrösste See des nordmitteleuropäischen Tieflandes (Knapp et al. 1999). Sie war in den vergangenen Jahrzehnten bereits mehrfach das Ziel paläohydrologischer und ...
Die 35. Hauptversammlung der Deutschen Quartärvereinigung DEUQUA fand in der Zeit vom 13.–17. Sep... more Die 35. Hauptversammlung der Deutschen Quartärvereinigung DEUQUA fand in der Zeit vom 13.–17. September mit mehr als 180 Teilnehmern aus 16 Ländern in Greifswald statt.
ABSTRACT The focus of this study is on the geochronological and paleoclimatic characterization of... more ABSTRACT The focus of this study is on the geochronological and paleoclimatic characterization of Pleistocene glaciation in central (Khangai Mountains) and western (Turgen Mountains, Mongolian Altai) Mongolia. These two mountain ranges form a 700 km long SE-NW transect through Mongolia and allow assumptions of the temporal and causal dynamics of regional glaciation and their correlation to other mountain glacier records from Central and High Asia. In order to evaluate the Pleistocene glaciations in Mongolia we undertook geomorphological mapping and cosmogenic radionuclide (CRN) surface exposure dating (10Be) in four valley systems located in the Khangai Mountains and Turgen Mountains. In total 46 glacial boulders and roche moutonnées were sampled, prepared and AMS measured to determine their 10Be surface exposure ages. Of these, 26 samples were obtained from the Khangai Mountains (three separate moraine sequences) and 20 samples were taken from the Turgen Mountains (one moraine sequence). Our results give evidence of major ice advances during early MIS-4 (74−71 ka) and MIS-2 (25−20 and 18− 17 ka) in both mountain ranges. However, in the Khangai Mountains of central Mongolia very significant ice advances also occurred during MIS-3 (37−32 ka), which exceeded the ice limits set during the MIS-2 glaciation. These results show that climatic conditions during phases of insolation minima characterized by extremely cold and dry conditions (MIS-4 and MIS-2) produced a favorable setting for major ice expansion in Mongolia. Yet, glacial accumulation in the Khangai Mountains also increased substantially in response to the cool-wet conditions of MIS-3, associated with a possibly greater-than-today input from winter precipitation. These records indicate that in addition to the thermally induced glaciations of MIS-4 and MIS-2, variations in atmospheric moisture supply are also capable of triggering large ice advances as observed during MIS-3. Taken together, this suggests that the role of atmospheric circulation and its significance for controlling regional precipitation results in a more differentiated pattern of late Pleistocene glaciation in Mongolia than previously recognized. Compared to other glacial records from High Asia, the observed patterns of past glaciations in Mongolia show similar results (i.e. ice maxima during interstadial wet phases) compared to monsoon influenced regions in southern Central Asia and NE-Tibet, while major expansion during insolation minima (MIS-4 and MIS-2) are more in tune with glacier responses known from western Central Asia and Siberia.
The Tollense valley in northeast Germany is well known for its substantial evidence indicating a ... more The Tollense valley in northeast Germany is well known for its substantial evidence indicating a violent conflict dated to the early 13th century BC (Period III of the Nordic Bronze Age). This article presents a significant new find from a later Bronze Age context, found in the river at a known Bronze Age valley crossing (site Weltzin 13) by Ronald Borgwardt in 2020. The small bronze figurine (14.7 cm tall) has an egg-shaped head with a prominent nose, looped arms, a neckring, two knobs signifying breasts, a belt, an indication of a female sex and two slightly differently shaped legs. In the 19th century a similar female statuette was found near the village of Klein Zastrow, just a few kilometres from the valley crossing, but mostly these figurines are known from Zealand and Scania. Belts are only present on the statuettes from Zealand and northern Germany, and their presence suggests a close connection between the figures from these areas. Typological evidence places the figure fro...
Im Rahmen der Forschungen zum bronzezeitlichen Schlachtfeld im Tollensetal (Mecklenburg-Vorpommer... more Im Rahmen der Forschungen zum bronzezeitlichen Schlachtfeld im Tollensetal (Mecklenburg-Vorpommern, 13. Jh. v.u.Z.) wurden bislang Uberreste von mehr als 130 jungen Mannern entdeckt, die perimortale wie auch verheilte Verletzungen zeigen. Dazu kommen Waffenfunde der selben Zeitphase, hauptsachlich Pfeilspitzen aus Flint und Bronze sowie holzerne Keulen. Das Fundmaterial stammt von diversen Fundplatzen entlang eines mehr als 2,5 km langen Flussabschnitts. Die Fundplatze Weltzin 13 und Kessin 12 markieren den Beginn dieser Ausdehnung am westlichen bzw. ostlichen Flussufer mit dem Auftreten erster menschlicher Skelettreste des Schlachtfeldhorizonts, teils auch mit Verletzungen, sowie Waffenfunden. Zugleich stellt dieser Talabschnitt aufgrund seiner topographischen Situation eine gunstige Moglichkeit zur Querung des Flusstales dar. Fundmaterial vom Neolithikum bis zum Mittelalter aus diesem Bereich unterstreicht die Bedeutung dieses wohl uber Jahrtausende zur Querung genutzten Flusstala...
Chance discoveries of weapons, horse bones and human skeletal remains along the banks of the Rive... more Chance discoveries of weapons, horse bones and human skeletal remains along the banks of the River Tollense led to a campaign of research which has identified them as the debris from a Bronze Age battle. The resources of war included horses, arrowheads and wooden clubs, and the dead had suffered blows indicating face-to-face combat. This surprisingly modern and decidedly vicious struggle took place over the swampy braided streams of the river in an area of settled, possibly coveted, territory. Washed along by the current, the bodies and weapons came to rest on a single alluvial surface.
Zusammenfassung: Das Tollensetal in Nordostdeutschland ist bekannt für die Zeugnisse eines Gewalt... more Zusammenfassung: Das Tollensetal in Nordostdeutschland ist bekannt für die Zeugnisse eines Gewaltkonfliktes aus dem frühen 13 Jh. v. Chr. (Nordische Bronzezeit, Periode III). In diesem Aufsatz wird ein Neufund aus der jüngeren Bronzezeit vorgestellt, den Ronald Borgwardt im Sommer 2020 im Fluss an einer bereits bekannten bronzezeitlichen Talquerung (Fpl. Weltzin 13) entdeckt hat. Die Bronzefigur (Länge 14,7 cm) zeigt u. a. einen eiförmigen Kopf mit prominent geformter Nase, geschwungene Arme, einen Halsring, zwei Knubben für die Brüste, einen Gürtel, eine Markierung des weiblichen Geschlechts und zwei leicht unterschiedlich geformte Beine. Im 19. Jh. wurde eine ähnliche weibliche Statuette einige Kilometer entfernt bei Klein Zastrow entdeckt, aber die meisten Figuren dieser Art sind von Seeland und aus Schonen bekannt. Nur Statuetten der Insel Seeland und aus Vorpommern haben einen Gürtel und dies spricht für eine enge Verbindung der Figuren aus diesen Gebieten. Typologische Argumente datieren die Statuette aus der Tollense in die späte Bronzezeit (Periode V-VI). Vor einigen Jahren wurden die Figuren als mögliche Gewichte diskutiert, aber ihre
ABSTRACT The Wda River valley in northern Poland is a polygenetic valley located in a former subg... more ABSTRACT The Wda River valley in northern Poland is a polygenetic valley located in a former subglacial meltwater channel that after ice sheet retreat hosted separate and then interconnected lake basins, subsequently replaced by a river. In one part of the river system an abandoned Lateglacial valley is found. This dry valley is a unique feature in the area located within the limit of the Scandinavian Ice Sheet during the Last Glaciation in the Central European Lowland. We investigated lacustrine and fluvial sediments and landforms in the valley and applied palynological analysis combined with radiocarbon dating to reconstruct the valley evolution from the early period of river inception in the Lateglacial through the formation of lakes during the Pleistocene/Holocene transition up to the establishment of a modern river system in the early Holocene. Three coeval processes were identified: (1) formation of lake basins in the subglacial channel connected by a river, (2) erosion of the river bed between the lakes, and (3) sediment deposition at the mouths of the channels in the lake basins first generating delta fans and eventually filling the lakes entirely. The valley formation was associated with diachronous melting of dead ice blocks buried in the subglacial channel controlled by the capacity of the hydrological system to evacuate the meltwater. Most of the lake basins in the study area were formed during the Bølling–Allerød period, but one section of the subglacial channel not affected by thermokarst processes survived protected by dead ice blocks throughout the entire Lateglacial. Accelerated dead-ice decay at the beginning of the Holocene triggered widespread lowering of the base level, which caused lake disappearance and the formation of the modern river system. The processes reconstructed in the central section of the Wda River indicate a highly dynamic and diachronous river valley development during the Lateglacial and early Holocene whereby the valley formation was interwoven with the formation of lake basins within the valley triggered by melting of dead ice blocks in the substratum.
Mit 113, 5 km2 Wasserfläche und einem Einzugsgebiet von 1230 km2 ist die Müritz (62 m HN) der zw... more Mit 113, 5 km2 Wasserfläche und einem Einzugsgebiet von 1230 km2 ist die Müritz (62 m HN) der zweitgrösste See des nordmitteleuropäischen Tieflandes (Knapp et al. 1999). Sie war in den vergangenen Jahrzehnten bereits mehrfach das Ziel paläohydrologischer und ...
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