-
Younger Dryas and Early Holocene ice‐margin dynamics in northwest Russia Boreas (IF 2.2) Pub Date : 2024-03-04 Benjamin M. Boyes, Danni M. Pearce, Lorna D. Linch, David J. Nash
-
Patterns of glacio‐isostatic adjustment in mainland Scotland: new data from western central Scotland, proximal to the zone of maximum rebound Boreas (IF 2.2) Pub Date : 2024-02-24 David E. Smith, Callum R. Firth, James Rose
-
Multi-proxy palaeoenvironmental reconstruction of the Skagerrak from the Lateglacial to Middle Holocene Boreas (IF 2.2) Pub Date : 2024-02-13 Emma Ownsworth, Matthias Moros, Jeremy Lloyd, Ole Bennike, Jørn Bo Jensen, Thomas Blanz, David Selby
-
Re-investigation of the Bispingen palaeolake sediment succession (northern Germany) reveals that the Last Interglacial (Eemian) in northern-central Europe lasted at least ~15 000 years Boreas (IF 2.2) Pub Date : 2024-02-12 Stefan Lauterbach, Frank H. Neumann, Rik Tjallingii, Achim Brauer
-
Recent hummock establishment in the margin of a subarctic fen, Finnish Lapland Boreas (IF 2.2) Pub Date : 2024-02-02 Olivia Kuuri-Riutta, Elmiina Pilkama, Susanna Salminen-Paatero, Camille Vögeli, Edward A. D. Mitchell, Annalea Lohila, Eeva-Stiina Tuittila, Minna Väliranta
-
Exploring the potential of rock surface luminescence from glacial sediments: dating and transport history Boreas (IF 2.2) Pub Date : 2024-01-31 Eike F. Rades, Reza Sohbati, Helena Alexanderson, Mayank Jain, Andrew S. Murray
-
An integrated geological characterization of the Mid-Pleistocene to Holocene geology of the Sørlige Nordsjø II offshore wind site, southern North Sea Boreas (IF 2.2) Pub Date : 2024-01-19 Hannah E. Petrie, Christian H. Eide, Haflidi Haflidason, Jo Brendryen, Timothy Watton
-
The relationship between the loess stratigraphy in the Vojvodina region of northern Serbia and the Saalian and Rissian Stage glaciations – a review Boreas (IF 2.2) Pub Date : 2024-01-19 Slobodan B. Marković, Philip D. Hughes, Randall Schaetzl, Philip L. Gibbard, Qingzhen Hao, Milica G. Radaković, Jef Vandenberghe, Igor Obreht, György Sipos, Christian Laag, Milivoj B. Gavrilov, Aleksandar Antić, Rastko S. Marković, Petar Krsmanović, Kaja Fenn, Tin Lukić, Zoran M. Perić
-
Deglaciation of the highest mountains in Scandinavia at the Younger Dryas–Holocene transition: evidence from surface exposure-age dating of ice-marginal moraines Boreas (IF 2.2) Pub Date : 2023-12-27 John A. Matthews, Henriette Linge, Atle Nesje, Peter Wilson, Richard W. Mourne, Stefan Winkler, Geraint Owen, Jennifer L. Hill, Stefan Haselberger, Jesper Olsen
-
Stratigraphy of Late Mid-Pleistocene in Lithuania: the current status and issues Boreas (IF 2.2) Pub Date : 2023-12-29 Vaida Šeirienė, Albertas Bitinas
-
Giant saltwater inflow in AD 1951 triggered Baltic Sea hypoxia Boreas (IF 2.2) Pub Date : 2023-12-29 Matthias Moros, Aarno Tapio Kotilainen, Ian Snowball, Thomas Neumann, Kerstin Perner, H. E. Markus Meier, Svenja Papenmeier, Henriette Kolling, Thomas Leipe, Jaap S. Sinninghe Damsté, Ralph Schneider
-
Middle and Late Holocene relative sea level changes and coastal development at Rugård, Denmark Boreas (IF 2.2) Pub Date : 2023-11-29 Marie Holst Riis, Lasse Sander, Lars Nielsen, Jan-Pieter Buylaert, Amélie Juliette Marie Challier, Nicolaj Krog Larsen
-
Modern pollen assemblages from the hinterland of the Tibetan Plateau and their significance for reconstructions of past vegetation Boreas (IF 2.2) Pub Date : 2023-11-20 Linyuan Ma, Zhiguang Li, Qinghai Xu, Hongmei Li, Kailong Zhang, Yuecong Li, Ruchun Zhang, Xianyong Cao, Shengrui Zhang
-
The Roman to medieval landscape transformation at Aardenburg (southern The Netherlands) based on palynology and diatom analysis Boreas (IF 2.2) Pub Date : 2023-11-14 Coralie André, Dante de Ruijsscher, Wim De Clercq, Frieda Bogemans, Bart Van de Vijver, Annelies Storme, Stephen Louwye
-
Boreas Reviewers, volume 52 Boreas (IF 2.2) Pub Date : 2023-10-18
We, the editors, are grateful to all reviewers for their help in processing volume 52 of Boreas. Jan A. Piotrowski Nicolaj Krog Larsen
-
Central Mediterranean tephrochronology for the time interval 250–315 ka derived from the Fucino sediment succession Boreas (IF 2.2) Pub Date : 2023-10-17 Niklas Leicher, Lorenzo Monaco, Biagio Giaccio, Sebastien Nomade, Alison Pereira, Giorgio Mannella, Sabine Wulf, Gianluca Sottili, Danilo M. Palladino, Giovanni Zanchetta, Bernd Wagner
-
Footprint of the Baltic Ice Stream: geomorphic evidence for shifting ice stream pathways Boreas (IF 2.2) Pub Date : 2023-10-13 Sarah L. Greenwood, Rachael S. Avery, Richard Gyllencreutz, Carl Regnéll, Karol Tylmann
-
The Anthropocene is best understood as an ongoing, intensifying, diachronous event Boreas (IF 2.2) Pub Date : 2023-10-08 Michael J. C. Walker, Andrew M. Bauer, Matthew Edgeworth, Erle C. Ellis, Stanley C. Finney, Philip L. Gibbard, Mark Maslin
Current debate on the status and character of the Anthropocene is focussed on whether this interval of geological time should be designated as a formal unit of epoch/series rank in the International Chronostratigraphic Chart/Geological Time Scale, or whether it is more appropriate for it to be considered as an informal ‘event’ comparable in significance with other major transformative events in deeper
-
Sedimentary evidence of the Late Holocene tsunami in the Shetland Islands (UK) at Loch Flugarth, northern Mainland Boreas (IF 2.2) Pub Date : 2023-10-06 Max Engel, Katharina Hess, Sue Dawson, Tasnim Patel, Andreas Koutsodendris, Polina Vakhrameeva, Eckehard Klemt, Philipp Kempf, Isa Schön, Vanessa M. A. Heyvaert
-
Geomorphological record of the glacial to periglacial transition from the Bølling–Allerød to the Holocene in the Central Pyrenees: the Lòcampo cirque in the regional context Boreas (IF 2.2) Pub Date : 2023-09-04 Marcelo Fernandes, Marc Oliva, José María Fernández-Fernández, Gonçalo Vieira, David Palacios, Julia Garcia-Oteyza, Josep Ventura, Irene Schimmelpfennig
-
A resilient ice cover over the southernmost Mendeleev Ridge during the late Quaternary Boreas (IF 2.2) Pub Date : 2023-08-22 Tengfei Song, Claude Hillaire-Marcel, Anne de Vernal, Yanguang Liu
-
British–Irish Ice Sheet and polar front history of the Goban Spur, offshore southwest Ireland over the last 250 000 years Boreas (IF 2.2) Pub Date : 2023-08-10 Stanislaus G. Fabian, Stephen J. Gallagher, David De Vleeschouwer
-
From land to sea: provenance, composition, and preservation of organic matter in a marine sediment record from the North-East Greenland shelf spanning the Younger Dryas–Holocene Boreas (IF 2.2) Pub Date : 2023-08-07 Nanna Andreasen, Rebecca Jackson, Arka Rudra, Henrik Nøhr-Hansen, Hamed Sanei, Jørgen Bojesen-Koefoed, Marit-Solveig Seidenkrantz, Christof Pearce, Nicolas Thibault, Sofia Ribeiro
The organic matter content of marine sediments is often used to infer past changes in ocean conditions. However, the organic carbon pool preserved in coastal sediments is a complex mixture derived from different sources and may not reflect in situ processes. In this study, we combine taxonomic identification of reworked palynomorphs with pyrolysis organic geochemistry and reflected-light organic petrographic
-
Geometric morphometric assessment of the fossil bears of Namur, Belgium: Allometry and ecomorphology Boreas (IF 2.2) Pub Date : 2023-07-27 Anneke H. van Heteren, Mietje Germonpré
-
Holocene relative shore-level changes and development of the Ģipka lagoon in the western Gulf of Riga Boreas (IF 2.2) Pub Date : 2023-07-13 Alar Rosentau, Ieva Grudzinska, Edyta Kalińska, Helena Alexanderson, Valdis Bērziņš, Aija Ceriņa, Laimdota Kalniņa, Jānis Karušs, Kristaps Lamsters, Merle Muru, Māris Nartišs, Līga Paparde, Tiit Hang
Holocene relative shore-level changes and development of the Ģipka palaeolagoon in the western Gulf of Riga are reconstructed using multiproxy analyses by combining litho-, biostratigraphical and chronological data with remote sensing and geophysical data. The results show the development of the Ģipka basin from the Ancylus Lake/Initial Litorina Sea coastal zone (before c. 9.1 cal. ka BP) to coastal
-
Variations in Holocene fire activity and its controls in the Ningshao Plain, eastern China Boreas (IF 2.2) Pub Date : 2023-07-12 Konglan Shao, Jianping Zhang, Hongbo Zheng, Zhaoyan Gu, Bing Xu, Qing Yang, Keyang He, Huayu Lu
-
The deglaciation of Upernavik trough, West Greenland, and its Holocene sediment infill: processes and provenance Boreas (IF 2.2) Pub Date : 2023-06-16 Jens Weiser, Jürgen Titschack, Dierk Hebbeln
Under glacial climates, continental ice sheets such as, e.g., the Greenland Ice Sheet, extended onto the continental shelves and often carved out deep cross-shelf troughs. The sedimentary infill of such troughs commonly is a product of the complex interactions between the ice sheets, largely driving sediment input into the ocean, and the surrounding water masses. Off West Greenland, research has focused
-
Spatial interpretation of high-resolution environmental proxy data of the Middle Pleistocene Palaeolithic faunal kill site Schöningen 13 II-4, Germany Boreas (IF 2.2) Pub Date : 2023-06-07 Brigitte Urban, Kim J. Krahn, Thomas Kasper, Alejandro García-Moreno, Jarod M. Hutson, Aritza Villaluenga, Elaine Turner, Sabine Gaudzinski-Windheuser, Dalia Farghaly, Mario Tucci, Antje Schwalb
To spatially characterize the palaeolakeshore environment at the archaeological kill site Schöningen 13 II-4 of the Middle Pleistocene Reinsdorf sequence, in-depth palynological, geochemical, aquatic microfossil and archaeological analyses were undertaken on sediment sections with an average thickness of about 15 cm, concordantly overlain by faunal remains, dominated by horse, from the unique ‘Spear
-
Obliquity-driven mountain permafrost-related fluvial magnetic susceptibility cycles in the Quaternary mid-latitude long-term (2.5 Ma) fluvial Maros Fan in the Pannonian Basin Boreas (IF 2.2) Pub Date : 2023-05-24 Zoltán Püspöki, Philip L. Gibbard, László Ferenc Kiss, Richard W. McIntosh, Edit Thamó-Bozsó, Zita Krassay, Bálint Szappanos, Vera Maigut, Péter Kovács, Dominik Karácsony, Ferenc Stercel, Ferenc Visnovitz, Krisztina Demény, László Bereczki, Teodóra Szőcs, Ágnes Rotár-Szalkai, Tamás Fancsik
-
Depositional history of peatland pines (Pinus sylvestris L.) in NW Enontekiö, Finnish Lapland: implications for Middle Holocene drought and temperature fluctuations Boreas (IF 2.2) Pub Date : 2023-05-12 Samuli Helama, Hannu Herva, Joonas Uusitalo, Andy Moir, Kari Mielikäinen, Pekka Nöjd, Markku Oinonen, Raimo Sutinen
-
Timing and maximum flood level of the Early Holocene glacial lake Nedre Glomsjø outburst flood, Norway Boreas (IF 2.2) Pub Date : 2023-02-26 Fredrik Høgaas, Louise Hansen, Ivar Berthling, Martin Klug, Oddvar Longva, Helle Daling Nannestad, Lars Olsen, Anders Romundset
-
Sedimentary architecture and glacial hydrodynamic significance of the stratified Oak Ridges Moraine, southern Ontario, Canada Boreas (IF 2.2) Pub Date : 2023-02-22 David R. Sharpe, Hazen A. J. Russell
High-quality subsurface data provide new insights into the formation of Oak Ridges Moraine (ORM), an ~80 km3 sequence of stratified meltwater deposits resting >200 m above adjacent Lake Ontario. The ORM sedimentary succession comprises a three-part regional architecture: (i) ~north–south channel sand–gravel; (ii) channel-capping rhythmites; and (iii) east–west ridge sediments. The ORM depositional
-
The Langeland Fault System unravelled: Quaternary fault reactivation along an elevated basement block between the North German and Norwegian–Danish basins Boreas (IF 2.2) Pub Date : 2023-02-08 Niklas Ahlrichs, Christian Hübscher, Theis Raaschou Andersen, Jonas Preine, Laura Bogner, Wiebke Schäfer
-
Landsystem analysis of a tropical moraine-dammed supraglacial lake, Llaca Lake, Cordillera Blanca, Perú Boreas (IF 2.2) Pub Date : 2023-02-02 Rodrigo Alberto Narro Pérez, Carolyn H. Eyles, Rebecca E. Lee, Luzmila Dàvila Röller, John C. Maclachlan
Tropical glaciers of the Cordillera Blanca, Perú are rapidly thinning and retreating as a result of climate warming. The retreat of these glaciers along narrow linear bedrock valleys has increased the number and size of moraine-dammed glacial lakes formed in the valleys. This study aims to identify the geomorphological and sedimentological characteristics of an enlarging moraine-dammed supraglacial
-
Palaeoclimatic and regional implications of Older Dryas and Younger Dryas local glacier activity in the low-Arctic valley Finnkongdalen, Andøya, northern Norway Boreas (IF 2.2) Pub Date : 2023-01-27 Henrik Løseth Jansen, Svein Olaf Dahl, Henriette Linge, Jostein Bakke, Pål Ringkjøb Nielsen, Bjørn Christian Kvisvik
Continuous glacier margin and equilibrium-line altitude fluctuations of a former glacier on central Andøya, northern Norway, are reconstructed during the Lateglacial based on moraines and AMS 14C-dated sediments from the distal glacier-fed lake Ner-Finnkongdalsvatnet. The results indicate that a valley glacier occupied the entire valley during the Last Glacial Maximum (before 21 970±620 cal. a BP)
-
Central Mediterranean tephrochronology between 313 and 366 ka: New insights from the Fucino palaeolake sediment succession Boreas (IF 2.2) Pub Date : 2022-12-09 Niklas Leicher, Biagio Giaccio, Alison Pereira, Sebastien Nomade, Lorenzo Monaco, Giorgio Mannella, Paolo Galli, Edoardo Peronance, Danilo Mauro Palladino, Gianluca Sottili, Giovanni Zanchetta, Bernd Wagner
Thirty-two tephra layers were identified in the time-interval 313–366 ka (Marine Isotope Stages 9–10) of the Quaternary lacustrine succession of the Fucino Basin, central Italy. Twenty-seven of these tephra layers yielded suitable geochemical material to explore their volcanic origins. Investigations also included the acquisition of geochemical data of some relevant, chronologically compatible proximal
-
Revised marine reservoir offset (ΔR) values for molluscs and marine mammals from Arctic North America Boreas (IF 2.2) Pub Date : 2022-11-03 Anna J. Pieńkowski, Roy D. Coulthard, Mark F. A. Furze
-
Stratigraphy and age of a Neoglacial sedimentary succession of proglacial outwash and an alluvial fan in Langedalen, Veitastrond, western Norway Boreas (IF 2.2) Pub Date : 2022-11-01 Atle Nesje, Denise C. Rüther, Jacob C. Yde
-
The geodynamic and limnological evolution of Balkan Lake Ohrid, possibly the oldest extant lake in Europe Boreas (IF 2.2) Pub Date : 2022-10-31 Bernd Wagner, Paul Tauber, Alexander Francke, Niklas Leicher, Steven A. Binnie, Aleksandra Cvetkoska, Elena Jovanovska, Janna Just, Jack H. Lacey, Zlatko Levkov, Katja Lindhorst, Katerina Kouli, Sebastian Krastel, Konstantinos Panagiotopoulos, Arne Ulfers, Dušica Zaova, Timme H. Donders, Andon Grazhdani, Andreas Koutsodendris, Melanie J. Leng, Laura Sadori, Mirko Scheinert, Hendrik Vogel, Thomas Wonik
Studies of the upper 447 m of the DEEP site sediment succession from central Lake Ohrid, Balkan Peninsula, North Macedonia and Albania provided important insights into the regional climate history and evolutionary dynamics since permanent lacustrine conditions established at 1.36 million years ago (Ma). This paper focuses on the entire 584-m-long DEEP sediment succession and a comparison to a 197-m-long
-
Holocene relative sea level changes in the Västervik-Gamlebyviken region on the southeast coast of Sweden, southern Baltic Sea Boreas (IF 2.2) Pub Date : 2022-10-05 Christos Katrantsiotis, Martin Dahl, Veronica Palm, Johan Rönnby, Thomas Andrén, Elinor Andrén
We reconstruct the Holocene shore displacement of the Västervik-Gamlebyviken area on the southeast coast of Sweden, characterised by a maritime cultural landscape and archaeological significance since the Mesolithic. Sediment cores were retrieved from four lake basins that have been raised above sea level due to the postglacial land uplift and eustatic sea level changes after the melting of the Fennoscandian
-
Millennial-scale oscillations and an environmental regime shift around the Middle to Late Holocene transition in the North Atlantic region based on a multiproxy record from Isfjorden, West Spitsbergen Boreas (IF 2.2) Pub Date : 2022-10-04 Camille Brice, Anne de Vernal, Pierre Francus, Matthias Forwick, Seung-Il Nam
Palynological and sedimentological analyses were performed on the sediment core HH16-1205-GC retrieved from the central Isfjorden, West Spitsbergen. The sequence, which spans the last 7000 years, revealed an overall cooling trend with an important climate shift between 4.4 and 3.8 cal. ka BP, in addition to millennial-scale oscillations. Sea-surface reconstruction from dinocyst assemblages indicates
-
Multi-proxy climate and environmental records from a Holocene eutrophic mire, southern taiga subzone, West Siberia Boreas (IF 2.2) Pub Date : 2022-10-04 Irina V. Kurina, Elena E. Veretennikova, Anna A. Il’ina, Marina L. Egorova, Lyudmila V. Salisch, Vladimir N. Dolgin, Albert V. Udaloi, Evgeniya A. Golovatskaya, Egor A. Dyukarev, Sergei V. Smirnov
-
Reconstruction of cropland change in European countries using integrated multisource data since AD 1800 Boreas (IF 2.2) Pub Date : 2022-09-25 Yu Ye, Jun Li, Xiuqi Fang, Diyang Zhang, Zhilong Zhao, Zhilei Wu, Yujie Lu, Beibei Li
Credible historical land use/cover data are very important for past global change research. This study generates a set of integrated reconstruction methods based on multisource data and produces a new set of improved historical cropland data sets in Europe over the past 200 years. For AD 2000, FAO data, existing research results and statistical data are integrated. For AD 1900, a method of integrating
-
Southern Hemisphere Westerly Winds have modulated the formation of laminations in sediments in Lago Fagnano (Tierra del Fuego, Argentina) over the past 6.3 ka Boreas (IF 2.2) Pub Date : 2022-09-18 Alexis Vizcaino, Francisco J. Jimenez-Espejo, Robert B. Dunbar, David Mucciarone, Antonio García-Alix, Ina Neugebauer, Daniel Ariztegui
Tierra del Fuego in Argentina is a unique location to examine past Holocene wind variability since it intersects the core of the Southern Hemisphere Westerly Winds (SHWW). The SHWW are the most powerful prevailing winds on Earth. Their variation plays a role in regulating atmospheric CO2 levels and rainfall amounts and distribution, both today and in the past. We obtained a piston core (LF06-PC8) from
-
‘Holocene history of the eastern side of Novaya Zemlya from glaciomarine sediment records in the Tsivol’ki Fjord’: Comments Boreas (IF 2.2) Pub Date : 2022-09-12 Ekaterina Taldenkova
Rusakov et al. (2022) present a multiproxy-based reconstruction of the Holocene history of Tsivol’ki Fjord located on the Kara Sea coast of the northern Novaya Zemlya. A considerable portion of the palaeoreconstructions is derived from the data on macro- and microfossils. As an author of these data (although not acknowledged in the paper), I point to several mistakes in the data presentation, argue
-
Growth and retreat of the last British–Irish Ice Sheet, 31 000 to 15 000 years ago: the BRITICE-CHRONO reconstruction Boreas (IF 2.2) Pub Date : 2022-09-07 Chris D. Clark, Jeremy C. Ely, Richard C. A. Hindmarsh, Sarah Bradley, Adam Ignéczi, Derek Fabel, Colm Ó Cofaigh, Richard C. Chiverrell, James Scourse, Sara Benetti, Tom Bradwell, David J. A. Evans, David H. Roberts, Matt Burke, S. Louise Callard, Alicia Medialdea, Margot Saher, David Small, Rachel K. Smedley, Edward Gasson, Lauren Gregoire, Niall Gandy, Anna L. C. Hughes, Colin Ballantyne, Mark D
The BRITICE-CHRONO consortium of researchers undertook a dating programme to constrain the timing of advance, maximum extent and retreat of the British–Irish Ice Sheet between 31 000 and 15 000 years before present. The dating campaign across Ireland and Britain and their continental shelves, and across the North Sea included 1500 days of field investigation yielding 18 000 km of marine geophysical
-
An Early Pleistocene interglacial deposit at Pingorsuit, North-West Greenland Boreas (IF 2.2) Pub Date : 2022-08-29 Ole Bennike, William Colgan, Lars Hedenäs, Oliver Heiri, Geoffrey Lemdahl, Peter Wiberg-Larsen, Sofia Ribeiro, Roberto Pronzato, Renata Manconi, Anders A. Bjørk
At the Pingorsuit Glacier in North-West Greenland, an organic-rich deposit that had recently emerged from the retreating ice cap was discovered at an elevation of 480 m above sea level. This paper reports on macrofossil analyses of a coarse detritus gyttja and peaty soil, which occurred beneath a thin cover of till and glacifluvial deposits. The sediments contained remains of vascular plants, mosses
-
Stratigraphic and geotechnical characterization of regionally extensive and highly competent shallow sand units in the southern North Sea Boreas (IF 2.2) Pub Date : 2022-08-29 Matthias Fleischer, Ayobami Abegunrin, Daniel A. Hepp, Stefan Kreiter, Mark Coughlan, Tobias Mörz
A detailed stratigraphic and geotechnical investigation of the uppermost 50 m below the sea floor was carried out for parts of the German North Sea sector using combined information from shallow seismic reflection surveys, 50-m-long sediment cores and cone penetration tests covering an area of ~150 km2. While most recent studies concentrate on unusual features such as buried tunnel- or river-valleys
-
Contributions of climate, vegetation and soil to the alpine sediment carbon accumulation rate in central China since the Middle Holocene Boreas (IF 2.2) Pub Date : 2022-08-19 Ying Cheng, Hongyan Liu, Hongya Wang, Qian Hao, Keqin Duan, Zhibao Dong
Large amounts of carbon in alpine sediments have been expected to be sensitive to climate change, but how carbon accumulation responds to climate change remains unclear. Thus, we explored the impact of different factors on the carbon accumulation rate (CAR) of alpine sediments by combining a variety of climatic variables, vegetation data and erosion indicators based on two alpine sediment successions
-
Northeast Greenland: ice-free shelf edge at 79.4°N around the Last Glacial Maximum 25.5–17.5 ka Boreas (IF 2.2) Pub Date : 2022-08-16 Tine L. Rasmussen, Christof Pearce, Katrine Juul Andresen, Tove Nielsen, Marit-Solveig Seidenkrantz
The size of the last glacial ice sheet on the Northeast (NE) Greenland shelf and its interaction with ocean circulation have been the subject of debate. Here we provide insights into the extent of the ice sheet around the Last Glacial Maximum (LGM) and investigate timing and strength of changes in the flow of Atlantic Water. The study is based on a multiproxy investigation of a marine sediment core
-
High-resolution environmental changes recorded in ostracod and mollusc fauna from the Holsteinian palaeolake at Ortel Królewski II, eastern Poland Boreas (IF 2.2) Pub Date : 2022-06-10 Monika Czajkowska
To better understand the environmental variability during the Holsteinian interglacial, fauna of the palaeolake deposits at Ortel Królewski II, eastern Poland was investigated. The analysis covered the uppermost part of the profile, representing the so-called pre-optimal part of the Holsteinian interglacial (MIS 11c), namely the Taxus and Pinus-Larix pollen zones. Variability within the structure and
-
Early taphonomy of benthic foraminifera in Storfjorden ‘sea-ice factory’: the agglutinated/calcareous ratio as a proxy for brine persistence Boreas (IF 2.2) Pub Date : 2022-05-16 Maria Pia Nardelli, Eleonora Fossile, Olivier Péron, Hélène Howa, Meryem Mojtahid
The recurrent latent-heat polynya characterizing Storfjorden (Svalbard, Norway) triggers seasonal formation of thin first-year sea ice. This leads to the production of dense, salty, and corrosive brines that cascade towards the sea floor and mix with shelf waters. The bottom topography of the fjord is responsible for the retention of these dense waters in two central deep basins throughout the year
-
Season-of-death and age-at-death of the easternmost European cave bears: Cementum and dentine increment analysis provides new insight into the cave bear ecology Boreas (IF 2.2) Pub Date : 2022-05-13 Natalya E. Prilepskaya, Olga P. Bachura, Gennady F. Baryshnikov
Cementum and dentine increment analysis was used for the first time to study the remains of cave bears from European Russia, the Urals and the Caucasus. This study analysed 12 canines belonging to 12 different individuals (five males and seven females) from genetically different lineages of cave bears. The increment analysis showed that all studied cave bears belong to the categories adults and old
-
A modern pollen data set for the forest–meadow–steppe ecotone from the Tibetan Plateau and its potential use in past vegetation reconstruction Boreas (IF 2.2) Pub Date : 2022-04-25 Nannan Wang, Lina Liu, Yanrong Zhang, Xianyong Cao
The relationship between modern pollen and vegetation provides the basis for the interpretation of stratigraphic pollen assemblages and the quantitative reconstruction of past vegetation. We selected 168 topsoil samples from four different vegetation types on the south-eastern Tibetan Plateau to explore the relationships between pollen assemblages, vegetation and climate. The results reveal that pollen
-
Ground-penetrating radar (GPR) investigations of a large-scale buried ice-marginal landsystem, Skeiðarársandur, SE Iceland Boreas (IF 2.2) Pub Date : 2022-03-20 Devin Harrison, Neil Ross, Andrew J. Russell, Stuart J. Jones
The sedimentary record of Icelandic ice-contact environments provides critical insights into past glacier margin dynamics and position, relative sea level, and the geomorphic processes that drive the evolution of proglacial environments. This important archive has been little exploited, however, with most glacier and sea-level reconstructions based on limited sedimentary exposures, coring and surface
-
Spatial and temporal patterns of Holocene precipitation change in the Iberian Peninsula Boreas (IF 2.2) Pub Date : 2022-02-15 Liisa Ilvonen, José Antonio López-Sáez, Lasse Holmström, Francisca Alba-Sánchez, Sebastián Pérez-Díaz, José S. Carrión, María J. Ramos-Román, Jon Camuera, Gonzalo Jiménez-Moreno, Leena Ruha, Heikki Seppä
Precipitation is a key climate parameter of vegetation and ecosystems in the Iberian Peninsula. Here, we use a regional pollen–climate calibration model and fossil pollen data from eight sites from the Atlantic coast to southern Spain to provide quantitative reconstructions of annual precipitation trends and excursions and their regional patterns for the last 11 700 years. The Early Holocene (11 700
-
Holocene variability in sea-ice conditions in the eastern Baffin Bay-Labrador Sea – A north–south biomarker transect study Boreas (IF 2.2) Pub Date : 2022-02-10 Jeetendra Saini, Ruediger Stein, Kirsten Fahl, Jens Weiser, Dierk Hebbeln, Lina Madaj
-
An updated Weichselian chronostratigraphic framework of the Kongsfjorden Trough Mouth Fan and its implications for the glacial history of Svalbard Boreas (IF 2.2) Pub Date : 2022-02-02 Daniel Hesjedal Wiberg, Haflidi Haflidason, Jan Sverre Laberg
The Arctic is a climate-sensitive area, responding rapidly to present changes, but for the past changes, the record is still incomplete. For instance, the Weichselian glacial history of the Svalbard–Barents Sea Ice Sheet (SBIS) has largely been reconstructed based on studies of the fragmentary Spitsbergen terrestrial and shelf records. However, the sediments removed from the land and shelf areas during
-
The woolly rhinoceros (Coelodonta antiquitatis) from Ondorkhaan, eastern Mongolia Boreas (IF 2.2) Pub Date : 2022-01-31 Naoto Handa, Masami Izuho, Keiichi Takahashi, Fumie Iizuka, Batmunkh Tsogtbaatar, Byambaa Gunchinsuren, Davakhuu Odosuren, Lochin Ishitseren
The Mammoth Faunas, the famous cold-adapted mammal assemblages, were distributed widely across northern Eurasia and North America during the Late Pleistocene. The now extinct woolly rhinoceros, Coelodonta antiquitatis, was a major component. Abundant fossil remains of this species with radiocarbon dates have been reported through almost all of northern Eurasia, but the fossil rhinoceroses of Mongolia
-
Postglacial peatland vegetation succession in Store Mosse bog, south-central Sweden: An exploration of factors driving species change Boreas (IF 2.2) Pub Date : 2022-01-31 Eleonor E. Ryberg, Minna Väliranta, Antonio Martinez-Cortizas, Johan Ehrlén, Jenny K. Sjöström, Malin E. Kylander
Boreal peatlands are facing significant changes in response to a warming climate. Sphagnum mosses are key species in these ecosystems and contribute substantially to carbon sequestration. Understanding the factors driving vegetation changes on longer time scales is therefore of high importance, yet challenging since species changes are typically affected by a range of internal and external processes