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  • 1.
    Apel, Jan
    et al.
    Lund Univ LUX, Dept Archaeol & Ancient Hist, Box 192, Lund, Sweden.;Stockholm Univ, Dept Archaeol & Class Studies, Osteoarchaeol Res Lab, Stockholm, Sweden..
    Wallin, Paul
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Historisk-filosofiska fakulteten, Institutionen för arkeologi och antik historia, Arkeologi.
    Stora, Jan
    Stockholm Univ, Dept Archaeol & Class Studies, Osteoarchaeol Res Lab, Stockholm, Sweden..
    Possnert, Göran
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, För teknisk-naturvetenskapliga fakulteten gemensamma enheter, Tandemlaboratoriet.
    Early Holocene human population events on the island of Gotland in the Baltic Sea (9200-3800 cal. BP)2018Inngår i: Quaternary International, ISSN 1040-6182, E-ISSN 1873-4553, Vol. 465, s. 276-286Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The summed probability distribution of 162 radiocarbon dates from Gotland was analysed with reference to archaeological and environmental data in order to evaluate possible variations in settlement intensity on the island. The data indicated variations in demographic development on the island, with probably several different colonization events and external influences; the pioneer settlement reached the island around 9200 cal. BP. After the initial colonization, the radiocarbon dates were rather evenly distributed until around 7700-7600 cal. BP, then there was a drop in the number of dates between 8300 and 8000 cal. BP that may be associated with the 8200 cold event. A marked decline in the number of dates between 7600 and 6000 cal. BP may be associated initially with the Littorina I transgression, but this transgression cannot explain why the Late Mesolithic period is not well represented on Gotland: the climatic development was favourable but did not result in increased human activity. The number of radiocarbon dates indicated that the population size remained low until around 6000 cal. BP, after which there was a gradual increase that reached a first 'threshold' after 5600 cal. BP and a second 'threshold' after 4500 cal. BP. The first apparent population increase was associated with the appearance of the Funnel Beaker Culture (FBC) and the second with Pitted Ware Culture (PWC) complexes. A decline in the number of dates occurred after 4300 cal. BP, i.e. towards the Late Neolithic. There was an association between the frequency distributions of the radiocarbon dates and the number of stray finds from different time periods but any correlation was not straightforward. (C) 2017 Elsevier Ltd and INQUA. All rights reserved.

  • 2.
    Bate, Stephen
    et al.
    Royal Holloway Univ London, Quaternary Res Ctr, Dept Geog, Egham TW20 0EX, Surrey, England..
    Stevens, Thomas
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Geovetenskapliga sektionen, Institutionen för geovetenskaper, Luft-, vatten- och landskapslära. Royal Holloway Univ London, Quaternary Res Ctr, Dept Geog, Egham TW20 0EX, Surrey, England.; Univ Novi Sad, Fac Sci, Lab Paleoenvironmental Reconstruct, Trg D Obradov 2, Novi Sad 21000, Serbia..
    Buylaert, Jan-Pieter
    Univ Aarhus, Dept Earth Sci, Nord Lab Luminescence Dating, Riso DTU, DK-4000 Roskilde, Denmark.; Ctr Nucl Technol, Riso DTU, DK-4000 Roskilde, Denmark..
    Markovic, Slobodan
    Univ Novi Sad, Fac Sci, Lab Paleoenvironmental Reconstruct, Trg D Obradov 2, Novi Sad 21000, Serbia..
    Roos, Per
    Ctr Nucl Technol, Riso DTU, DK-4000 Roskilde, Denmark..
    Tasic, Nenad
    Univ Belgrade, Fac Philosophy, Dept Archaeol, Belgrade, Serbia..
    Pottery versus sediment: Optically stimulated luminescence dating of the Neolithic Vinca culture, Serbia2017Inngår i: Quaternary International, ISSN 1040-6182, E-ISSN 1873-4553, Vol. 429, s. 45-53Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Optically stimulated luminescence (OSL) dating was applied to the Neolithic Vinca culture's type-site, Vinca Belo-Brdo, to establish best protocols for routine luminescence dating of similar Holocene sites, critical in understanding Neolithic to Chalcolithic cultural development. Equivalent dose (De) values were investigated for sediment samples using 63-90 mm grains on large and small aliquots, and single-grain laser luminescence (SGLL), and for pottery samples using large aliquots of 4-11 mm grains. The effects of changing water content and the different techniques available to establish radionuclide concentration were explored for their impacts on dose rate (Dr) estimates. Ages for two pottery samples of 6.74 +/- 0.37 ka and 7.04 +/- 0.47 ka are in line with the existing AMS radiocarbon chronology for the site and are regarded as the best dates available. Sediment samples at Vinca show poor signal strength, and the uncertainty over past water content, in addition to the possibility of mixing and/or partial bleaching of the quartz, means that we do not recommend the use of sediment-derived ages at complex archaeological sites such as Vinca. OSL dating of fired pottery however, presents a powerful tool for generating independent chronologies at archaeological sites as well as providing additional constraints for Bayesian age models.

  • 3.
    Chen, Yongqin David
    et al.
    Department of Geography and Resource Management, The Chinese University of Hong Kong, Hong Kong, China.
    Zhang, Qiang
    Department of Water Resources and Environment, Sun Yat-sen University, China.
    Xu, Chong-Yu
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Geovetenskapliga sektionen, Institutionen för geovetenskaper, Luft-, vatten- och landskapslära.
    Lu, Xixi
    Department of Geography, National University of Singapore .
    Zhang, Shurong
    Department of Geography, National University of Singapore .
    Multiscale streamflow variations of the Pearl River basin and possible implications for the water resource management within the Pearl River Delta, China2010Inngår i: Quaternary International, ISSN 1040-6182, E-ISSN 1873-4553, Vol. 226, nr 1-2, s. 44-53Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Long monthly streamflow series of three control hydrological stations of the Pearl River basin were analyzed by using the scanning t-test and the scanning F-test. Possible implications of the changing properties of streamflow variations for the water resource management of the Pearl River Delta are also discussed. The results indicated that: 1) more complicated changes were observed in terms of the second center moment when compared to the first original moment More significant abrupt changes of the second center moment imply more sensitive response of streamflow stability to climate changes and human activities; 2) abrupt behaviors of the first (second) center moment of the streamflow variations tend to be more sensitive to climate changes and/or human activities in the larger river basin when compared to those in the smaller river basin. These phenomena are attributed to buffering functions of more storage space of longer river channel, and more complicated and longer runoff yield and concentration processes in the river basin of larger drainage area; 3) annual minimum streamflow of the Pearl River basin tends to be increasing. This will be helpful for better human mitigation of the salinity intrusion in dry seasons across the Pearl River Delta. Annual maximum streamflow, when compared to annual minimum streamflow, shows larger-magnitude variability reflected by larger standard deviation, implying unfavorable conditions for flood mitigation in the Pearl River Delta. The results of this paper are of scientific and practical merits for water resource management and sound human mitigation to water hazards across the Pearl River Delta, and also are a good case study for similar researches in other river deltas in the world under the changing environment. (C) 2009 Elsevier Ltd and INQUA. All rights reserved.

  • 4.
    Dibble, Flint
    et al.
    Dartmouth Coll, Dept Class, HB 6086,Reed Hall,15 Coll St,Room 207, Hanover, NH 03755 USA.;Amer Sch Class Studies Athens, Malcolm H Wiener Lab Archaeol Sci, 54 Souidias St, Athens GR-10676, Greece..
    Finné, Martin
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Historisk-filosofiska fakulteten, Institutionen för arkeologi och antik historia, Antikens kultur och samhällsliv.
    Socioenvironmental change as a process: Changing foodways as adaptation to climate change in South Greece from the Late Bronze Age to the Early Iron Age2021Inngår i: Quaternary International, ISSN 1040-6182, E-ISSN 1873-4553, Vol. 597, s. 50-62Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Recent interest in modern climate change has stimulated extensive scientific study into past societal responses to climate variability. However, examining climate change and society as a historical narrative drawing upon politics, economics, and settlement patterns does not provide a direct link between climate and society. Given that most inhabitants of the premodern world engaged in agriculture and/or pastoralism, examining chronological correlations between climate and foodways, not as a historical narrative but as a longterm socioenvironmental process, has the potential to identify direct societal adaptations to a changing environment. From South Greece there is evidence for drier conditions at the end of the Late Bronze Age. Is the disappearance of writing, art, and many known settlements at the end of the Bronze Age an example of collapse in the face of inability to adapt to climate change? This is a difficult question to answer given the coarse resolution of many of our archaeological and climatic datasets. Settlement faunal records suggest that food production systems became increasingly homogenous in Late Bronze Age Greece, potentially due to an elite control over various production systems that promoted intensification of certain products. However, in the first millennium B.C.E., animal husbandry, specifically, and food production systems, more broadly, became more heterogenous, and a proportional increase in goats in areas with less rainfall was likely an adaptive response to the drier climate. This paper examines the adaptive relationship between foodways and climate and argues for a process driven approach when explaining social responses to ancient climate change.

  • 5.
    Hambrecht, George
    et al.
    Univ Maryland, Dept Anthropol, 0111 Woods Hall,4302 Chapel Lane, College Pk, MD 20742 USA..
    Anderung, Cecilia
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Biologiska sektionen, Institutionen för ekologi och genetik, Evolutionsbiologi.
    Brewington, Seth
    CUNY Hunter Coll, Dept Anthropol, New York, NY 10065 USA..
    Dugmore, Andrew
    Univ Edinburgh, Inst Geog & Lived Environm, Edinburgh EH8 9XP, Midlothian, Scotland..
    Edvardsson, Ragnar
    Univ Iceland, Res Ctr Westfjords, IS-400 Isafjorur, Iceland..
    Feeley, Francis
    CUNY Hunter Coll, Dept Anthropol, New York, NY 10065 USA..
    Gibbons, Kevin
    Univ Maryland, Dept Anthropol, 0111 Woods Hall,4302 Chapel Lane, College Pk, MD 20742 USA..
    Harrison, Ramona
    Univ Bergen, Dept Archaeol Hist Cultural Studies & Relig, N-5020 Bergen, Norway..
    Hicks, Megan
    CUNY Hunter Coll, Dept Anthropol, New York, NY 10065 USA..
    Jackson, Rowan
    Univ Edinburgh, Inst Geog & Lived Environm, Edinburgh EH8 9XP, Midlothian, Scotland..
    Olafsdottir, Gudbjorg Asta
    Univ Iceland, Res Ctr Westfjords, IS-400 Isafjorur, Iceland..
    Rockman, Marcy
    Natl Pk Serv, Washington, DC 20372 USA..
    Smiarowski, Konrad
    CUNY Hunter Coll, Dept Anthropol, New York, NY 10065 USA..
    Streeter, Richard
    Univ St Andrews, Dept Geog & Sustainable Dev, St Andrews KY16 9AL, Fife, Scotland..
    Szabo, Vicki
    Western Carolina Univ, Dept Hist, Cullowhee, NC 28723 USA..
    McGovern, Thomas
    CUNY Hunter Coll, Dept Anthropol, New York, NY 10065 USA..
    Archaeological sites as Distributed Long-term Observing Networks of the Past (DONOP)2020Inngår i: Quaternary International, ISSN 1040-6182, E-ISSN 1873-4553, Vol. 549, s. 218-226Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Archaeological records provide a unique source of direct data on long-term human-environment interactions and samples of ecosystems affected by differing degrees of human impact. Distributed long-term datasets from archaeological sites provide a significant contribution to establish local, regional, and continental-scale environmental baselines and can be used to understand the implications of human decision-making and its impacts on the environment and the resources it provides for human use. Deeper temporal environmental baselines are essential for resource and environmental managers to restore biodiversity and build resilience in depleted ecosystems. Human actions are likely to have impacts that reorganize ecosystem structures by reducing diversity through processes such as niche construction. This makes data from archaeological sites key assets for the management of contemporary and future climate change scenarios because they combine information about human behavior, environmental baselines, and biological systems. Sites of this kind collectively form Distributed Long-term Observing Networks of the Past (DONOP), allowing human behavior and environmental impacts to be assessed over space and time. Behavioral perspectives are gained from direct evidence of human actions in response to environmental opportunities and change. Baseline perspectives are gained from data on species, landforms, and ecology over timescales that long predate our typically recent datasets that only record systems already disturbed by people. Biological perspectives can also provide essential data for modern managers wanting to understand and utilize past diversity (i.e., trophic and/or genetic) as a way of revealing, and potentially correcting, weaknesses in our contemporary wild and domestic animal populations.

  • 6.
    Hellqvist, Magnus
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Geovetenskapliga sektionen, Institutionen för geovetenskaper.
    Analysis of Coleopterans from Late Holocene natural spring deposits in south-central Sweden2014Inngår i: Quaternary International, ISSN 1040-6182, E-ISSN 1873-4553, Vol. 341, s. 184-194Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The usage history of a natural spring deposit in associated glacial till was investigated via analysis ofcoleopteran remains found in peat. This material was recovered during archaeological excavations in aspring outflow in south central Sweden. The geographical region of southern Sweden has been heavilyaffected by uplift following the terminal glaciation (Weichselian) in Scandinavia, with the study area forthis project having risen above sea level about 1200 BC. The spring was found in connection to thenorthern part of a large settlement and religious area, dating from the Younger Bronze Age and PreRoman Iron Age (1100e300 BC). However, the area has been used for agricultural land up until thepresent day. Sampling was conducted for interpretation of the usage history of the site, with the insectfragments showing exceptional preservation as a result of unusual conditions in the sediments. 14Cdatingfrom the lower to upper part of the spring yielded a stratigraphic range of 670e870 to 660e810AD respectively. A half-circle boulder construction provides clear evidence that the spring was used earlyin prehistory, probably during the Bronze Age, and potentially excavated at irregular periods. Thecoleopteran assemblage was dominated by beetles indicative of open landscapes, grazing land, andforested environments. This closely resembles the vegetation setting of today, in which the spring issituated on the border between arable land and mixed deciduous and coniferous forest. A high frequencyof carabid beetles suggests that the spring may have functioned as a pitfall trap, and correlated well withthe relative inorganic to organic compound composition of the ground conditions. The spring wasprobably abandoned in the late Iron Age (600e800 AD). Identification of two red-listed threatenedspecies that are not present in the current fauna implies that radical change in the agricultural landscapeover the last 1200 years could be negatively affecting diversity dynamics within the local fauna.

  • 7. Jin, Xiaoli
    et al.
    Xu, Chong-yu
    Zhang, Qi
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Geovetenskapliga sektionen, Institutionen för geovetenskaper, Luft-, vatten- och landskapslära.
    Chen, David
    Zhonggen, Wang
    Regionalization study of a conceptual hydrological model in Dongjiang basin, south China2009Inngår i: Quaternary International, ISSN 1040-6182, E-ISSN 1873-4553, Vol. 208, nr 1-2, s. 129-137Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The seasonal variability and spatial distribution of precipitation are the main cause of flood and drought events. The study of spatial distribution and temporal trend of precipitation in river basins has been paid more and more attention. However, in China, the precipitation data are measured by weather stations (WS) of China Meteorological Administration and hydrological rain gauges (RG) of national and local hydrology bureau. The WS data usually have long record with fewer stations, while the RG data usually have short record with more stations. The consistency and correlation of these two data sets have not been well understood. In this paper, the precipitation data from 30 weather stations for 1958-2007 and 248 rain gauges for 1995-2004 in the Haihe River basin are examined and compared using linear regression, 5-year moving average, Mann-Kendall trend analysis, Kolmogorov-Smirnov test, Z test and F test methods. The results show that the annual precipitation from both WS and RG records are normally distributed with minor difference in the mean value and variance. It is statistically feasible to extend the precipitation of RG by WS data sets. Using the extended precipitation data, the detailed spatial distribution of the annual and seasonal precipitation amounts as well as their temporal trends are calculated and mapped. The various distribution maps produced in the study show that for the whole basin the precipitation of 1958-2007 has been decreasing except for spring season. The decline trend is significant in summer, and this trend is stronger after the 1980s. The annual and seasonal precipitation amounts and changing trends are different in different regions and seasons. The precipitation is decreasing from south to north, from coastal zone to inland area.

  • 8.
    Knutsson, Helena
    et al.
    Stoneslab.
    Knutsson, Kjel
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Historisk-filosofiska fakulteten, Institutionen för arkeologi och antik historia, Arkeologi.
    Molin, Fredrik
    Statens historiska museum.
    Zetterlund, Peter
    Statens historiska museum.
    From flint to quartz: Organization of lithic technology in relation to raw material availability during the pioneer process of Scandinavia2016Inngår i: Quaternary International, ISSN 1040-6182, E-ISSN 1873-4553, Vol. 424, s. 32-57Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Formal technologies and intensified reduction are often seen as responces to increased mobility and low abundance of lithic raw material of good flakeability and controllability. In this paper we discuss an alternative explanation to this hypothesis using the change in tool raw material experienced by flint using pioneers as they had to go from a formal blade technology to a simple flake technology as they settled in Scandinavia. The region is dominated by quartz and we used use-wear data as a means to evaluate the role of this type of raw material compared to the use profile of flint assemblages in the home territories of the pioneers. Although the technology changed through simplification and loss of formal production rules due to the low workability of quartz, we conclude that changes in the foraging range into areas of bad quality tool raw materials, does not need formalization of the technology. The quartz in our sample was used for a wide variety of activities in every aspect comparable to the range of uses identified in the contemporaneous blade assemblages based on flint. Instead of formalization of the lithic technology to cope with bad quality raw materials, it was diversified and simplified but without interfering with the organisational dimensions and design criteria of the bone technology.

     

  • 9.
    Kurbanov, Redzhep
    et al.
    Lomonosov Moscow State Univ, Fac Geog, GSP-1, Moscow, Russia.;RAS, Inst Geog, Staromonenty Per 29, Moscow, Russia..
    Lu, Huayu
    Nanjing Univ, Sch Geog & Ocean Sci, Nanjing 210023, Jiangsu, Peoples R China..
    Stevens, Thomas
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Geovetenskapliga sektionen, Institutionen för geovetenskaper, Luft-, vatten- och landskapslära.
    Markovic, Slobodan B.
    Univ Novi Sad, Fac Sci, Phys Geog, Trg Dositeja Obradovica 3, Novi Sad 21000, Serbia.;Serbian Acad Arts & Sci, Knez Mihajlova 35, Belgrade 11000, Serbia..
    LoessFest 2018, Volgograd, Russia2022Inngår i: Quaternary International, ISSN 1040-6182, E-ISSN 1873-4553, Vol. 620, s. 1-3Artikkel i tidsskrift (Annet vitenskapelig)
  • 10.
    Li, Guoqiang
    et al.
    Lanzhou Univ, Coll Earth & Environm Sci, MOE Key Lab Western Chinas Environm Syst, Lanzhou 730000, Gansu, Peoples R China.
    Madsen, David B.
    Lanzhou Univ, Coll Earth & Environm Sci, MOE Key Lab Western Chinas Environm Syst, Lanzhou 730000, Gansu, Peoples R China.
    Jin, Ming
    Lanzhou Univ, Coll Earth & Environm Sci, MOE Key Lab Western Chinas Environm Syst, Lanzhou 730000, Gansu, Peoples R China.
    Stevens, Thomas
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Geovetenskapliga sektionen, Institutionen för geovetenskaper, Luft-, vatten- och landskapslära.
    Tao, Shuxian
    Lanzhou Univ, Coll Earth & Environm Sci, MOE Key Lab Western Chinas Environm Syst, Lanzhou 730000, Gansu, Peoples R China.
    She, Linlin
    Lanzhou Univ, Coll Earth & Environm Sci, MOE Key Lab Western Chinas Environm Syst, Lanzhou 730000, Gansu, Peoples R China.
    Yang, Liping
    Chang An Univ, Sch Earth Sci & Resources, Xian 710054, Shaanxi, Peoples R China.
    Li, Fangliang
    Lanzhou Univ, Coll Earth & Environm Sci, MOE Key Lab Western Chinas Environm Syst, Lanzhou 730000, Gansu, Peoples R China.
    Wei, Haitao
    Lanzhou Univ, Coll Earth & Environm Sci, MOE Key Lab Western Chinas Environm Syst, Lanzhou 730000, Gansu, Peoples R China.
    Duan, Yanwu
    Lanzhou Univ, Coll Earth & Environm Sci, MOE Key Lab Western Chinas Environm Syst, Lanzhou 730000, Gansu, Peoples R China.
    Chen, Fahu
    Lanzhou Univ, Coll Earth & Environm Sci, MOE Key Lab Western Chinas Environm Syst, Lanzhou 730000, Gansu, Peoples R China.
    Orbital scale lake evolution in the Ejina Basin, central Gobi Desert, China revealed by K-feldspar luminescence dating of paleolake shoreline features2018Inngår i: Quaternary International, ISSN 1040-6182, E-ISSN 1873-4553, Vol. 482, s. 109-121Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The Ejina Basin in the central Gobi Desert contains the terminal lakes of the Heihe River. Paleoenvironmental changes in the basin are important since its deposits are a significant source of Northern Hemisphere dust. In this study we employed a K-feldspar pIRIR dating technique to date shoreline features <= 940 m at multiple locations in the Ejina Basin similar to 45-50 m above the modern basin floor. Internal checks of luminescence characteristics were employed to test the reliability of the pIRIR dating. In combination with our previously reported stratigraphy and chronology of shorelines at <= 927 m in the Ejina Basin, these results imply that a paleolake was present in the basin prior to similar to 350 ka. Other high stands in the basin occurred at similar to 320-310 ka, 240-180 ka, 120-80 ka, and similar to 5 ka, corresponding to MIS 9, MIS 7, MIS 5 and the mid Holocene (MIS 1), respectively, indicating a strong link with glacial-interglacial cycles. Extensions of the East Asian Summer Monsoon (EASM) during interglacial periods, possibly interacting with the Westerlies, apparently caused higher precipitation and lake formation. The impact of orbital eccentricity on the EASM/Westerlies appears to be responsible for the formation of major lake/desert cycles on the northeastern margin of the Tibetan Plateau.

  • 11.
    Lu, Huayu
    et al.
    Nanjing Univ, Sch Geog & Ocean Sci, Nanjing 210023, Jiangsu, Peoples R China..
    Wang, Xiaoyong
    Nanjing Univ, Sch Geog & Ocean Sci, Nanjing 210023, Jiangsu, Peoples R China..
    Wang, Yao
    Nanjing Univ, Sch Geog & Ocean Sci, Nanjing 210023, Jiangsu, Peoples R China..
    Zhang, Xiaojian
    Nanjing Univ, Sch Geog & Ocean Sci, Nanjing 210023, Jiangsu, Peoples R China..
    Yi, Shuangwen
    Nanjing Univ, Sch Geog & Ocean Sci, Nanjing 210023, Jiangsu, Peoples R China..
    Wang, Xianyan
    Nanjing Univ, Sch Geog & Ocean Sci, Nanjing 210023, Jiangsu, Peoples R China..
    Stevens, Thomas
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Geovetenskapliga sektionen, Institutionen för geovetenskaper, Luft-, vatten- och landskapslära.
    Kurbanov, Redzhep
    Lomonosov Moscow State Univ, Inst Geog RAS, Fac Geog, Pleistocene Paleogeog Lab, Moscow, Russia..
    Markovic, Slobodan B.
    Univ Novi Sad, Fac Sci, Trg Dositeja Obradov 3, Novi Sad 21000, Serbia..
    Chinese loess and the Asian monsoon: What we know and what remains unknown2022Inngår i: Quaternary International, ISSN 1040-6182, E-ISSN 1873-4553, Vol. 620, s. 85-97Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The variability and dynamics of the Asian monsoon (AM, hereafter indicates both of the summer and winter monsoons.) at orbital and millennial timescales has attracted wide interest. Chinese loess deposits, covering an area of-500 x 10(3) km(2) and with a thickness of several tens to more than three hundred meters, is an ideal continental archive to reconstruct AM variations during the Quaternary epoch. Over the past thirty years, since the earliest paper published in an international journal that linked the Asian monsoon and Chinese loess deposits, many studies have been undertaken focusing on this research topic. These results have greatly deepened our understanding of the variations of the AM climate and their driving mechanisms during the past-2.6 Myr. In this paper, we emphasize recent progress on the AM variability and dynamics revealed by Chinese loess records; in particular, we discuss the reliability and precision of the timescale and the monsoon proxy indicators for the loess-paleosol sequences, which are two fundamental aspects for understanding AM behavior. We analyze what we know and discuss what we do not know about the AM. We refine the timescale for the typical loess-paleosol sequence in the central Chinese Loess Plateau (CLP), which can be used as a new timescale to study palaeoclimate and palaeoenvironmental changes in the monsoonal Asia. We conclude that low-latitude insolation changes induced by precession, and global ice volume, temperature at high-latitudes, as well as sea-level changes forced variations of the AM at orbital time scales. High-latitude cooling events and low-latitude hydroclimate process at millennial time scales, such as climate changes associated with Heinrich events and Dansgaard-Oeschger cycles in Northern Atlantic and Greenland, have also modulated AM variability. We suggest that high-latitude forcing of AM variations occurs through ocean and atmospheric circulation linkages, although the roles of atmospheric CO2, ocean and vegetation feedbacks need further investigation. In future study, high-resolution independent dating, novel proxy indices and transient numerical simulations are still basic tools to understand the loess deposition and AM variations that require considerably more work. Issues such as reliable spatial comparison and regional linkages of records (dependent on precise and accurate numerical chronologies), and quantitative reconstruction of the AM variations, should be given priority in the study the past climate change in Asia, and low-latitude hydroclimate process.

  • 12. Markovic, Slobodan B.
    et al.
    Korac, Miomir
    Mrdic, Nemanja
    Buylaert, Jan-Pieter
    Thiel, Christine
    McLaren, Sue J.
    Stevens, Thomas
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Geovetenskapliga sektionen, Institutionen för geovetenskaper, Luft-, vatten- och landskapslära.
    Tomic, Nemanja
    Petic, Nikola
    Jovanovic, Mladjen
    Vasiljevic, Djordjije A.
    Suemegi, Pal
    Gavrilov, Milivoj B.
    Obreht, Igor
    Palaeoenvironment and geoconservation of mammoths from the Nosak loess-palaeosol sequence (Drmno, northeastern Serbia): Initial results and perspectives2014Inngår i: Quaternary International, ISSN 1040-6182, E-ISSN 1873-4553, Vol. 334, s. 30-39Artikkel i tidsskrift (Fagfellevurdert)
  • 13. Markovic, Slobodan B.
    et al.
    Yang, Shiling
    Catto, Norm
    Stevens, Thomas
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Geovetenskapliga sektionen, Institutionen för geovetenskaper, Luft-, vatten- och landskapslära.
    Loess in China and Europe: A tribute to Edward Derbyshire2014Inngår i: Quaternary International, ISSN 1040-6182, E-ISSN 1873-4553, Vol. 334, s. 1-3Artikkel i tidsskrift (Fagfellevurdert)
  • 14.
    Moros, Matthias
    et al.
    Leibniz Inst Balt Sea Res Warnemunde, Seestr 15, D-18119 Rostock, Germany..
    Kotilainen, Aarno Tapio
    Geol Survey Finland, Environm Solut, PL 96 Vuorimiehentie 5,POB 96, Espoo, Finland..
    Snowball, Ian
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Geovetenskapliga sektionen, Institutionen för geovetenskaper, Naturresurser och hållbar utveckling.
    Neumann, Thomas
    Leibniz Inst Balt Sea Res Warnemunde, Seestr 15, D-18119 Rostock, Germany..
    Perner, Kerstin
    Leibniz Inst Balt Sea Res Warnemunde, Seestr 15, D-18119 Rostock, Germany..
    Meier, H. E. Markus
    Leibniz Inst Balt Sea Res Warnemunde, Seestr 15, D-18119 Rostock, Germany.;Swedish Meteorol & Hydrol Inst, Folkborgsvagen 17, Norrköping, Sweden..
    Leipe, Thomas
    Leibniz Inst Balt Sea Res Warnemunde, Seestr 15, D-18119 Rostock, Germany..
    Zillen, Lovisa
    Geol Survey Sweden, Dept Marine Geol, Box 670, S-75128 Uppsala, Sweden..
    Damste, Jaap S. Sinninghe
    NIOZ Royal Netherlands Inst Sea Res, Dept Marine Microbiol & Biogeochem, NL-1790 AB Den Burg, Texel, Netherlands.;Univ Utrecht, NL-1790 AB Den Burg, Texel, Netherlands.;Univ Utrecht, Fac Geosci, Dept Earth Sci, POB 80-021, NL-3508 TA Utrecht, Netherlands..
    Schneider, Ralph
    Univ Kiel, Inst Geosci, Ludewig Meyn Str 10, D-24117 Kiel, Germany..
    Is 'deep-water formation' in the Baltic Sea a key to understanding seabed dynamics and ventilation changes over the past 7,000 years?2020Inngår i: Quaternary International, ISSN 1040-6182, E-ISSN 1873-4553, Vol. 550, s. 55-65Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Numerous hydro-acoustic studies of the seabed of the Baltic Sea have revealed the unusual occurrence of sediment contourite drifts and re-suspension at greater water depths. In addition, radiocarbon dating of bulk sediments indicates significant age reversals. We present new geophysical, sediment proxy data (including extensive radiocarbon dating) and hydrographic measurements, which are combined with results of numerous marine geological studies performed during the last decades. These data indicate that a deep-water formation process significantly affected the seabed dynamics during regional climatically cold phases during the last c. 7,000 years. We propose that, during the colder periods (e.g. the Little Ice Age), newly formed bottom waters likely caused widespread re-suspension of organic carbon-rich laminated sediments that were deposited during the preceding warm periods in shallower areas, and this material was transported to and re-deposited in the deeper parts of the Baltic Sea sub-basins. In our scenario, a topographic feature, known as the Baltic Sea Klint, acted as a hydrographic barrier for deep-water formed in the northern Baltic. Thus, during the cold periods increased lateral matter influx from the northern Baltic led to the accumulation of much thicker macroscopically homogenous clayey sediments in sub-basins north of the Klint. Moreover, deep-water formation produced bottom currents that led to the formation of sediment contourite drifts at water depths of> 200 m in the Bothnian Sea, the Aland Deep and northern central Baltic Sea sub-basins. Bottom water ventilation in the Baltic Sea is generally assumed to be determined solely by the inflow of oxygen-rich, saline water from the North Sea, but we challenge this assumption and postulate that deep-water formation is a key process that ventilates the bottom waters of the Baltic Sea during climatically cold periods with substantial implications for its sedimentary archive.

  • 15. Novothny, Agnes
    et al.
    Frechen, Manfred
    Horvath, Erzsebet
    Bradak, Balazs
    Oches, Eric A.
    McCoy, William D.
    Stevens, Thomas
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Geovetenskapliga sektionen, Institutionen för geovetenskaper, Luft-, vatten- och landskapslära.
    Luminescence and amino acid racemization chronology of the loess-paleosol sequence at Sutto, Hungary2009Inngår i: Quaternary International, ISSN 1040-6182, E-ISSN 1873-4553, Vol. 198, s. 62-76Artikkel i tidsskrift (Fagfellevurdert)
  • 16. Peric, Zoran
    et al.
    Lagerbäck Adolphi, Emma
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Geovetenskapliga sektionen, Institutionen för geovetenskaper.
    Stevens, Thomas
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Geovetenskapliga sektionen, Institutionen för geovetenskaper, Luft-, vatten- och landskapslära.
    Ujvari, Gabor
    Zeeden, Christian
    Buylaert, Jan-Pieter
    Markovic, Slobodan
    Hambach, Ulrich
    Fischer, Peter
    Schmidt, Christoph
    Shulte, Philipp
    Lu, Huayu
    Yi, Shuangwen
    Lehmkuhl, Frank
    Obreht, Igor
    Veres, Daniel
    Thiel, Christine
    Frechen, Manfred
    Jain, Mayank
    Vött, Andreas
    Zöller, Ludwig
    Gavrilov, Milivoj B.
    Quartz OSL dating of late quaternary Chinese and Serbian loess: A cross Eurasian comparison of dust mass accumulation rates2019Inngår i: Quaternary International, ISSN 1040-6182, E-ISSN 1873-4553, Vol. 502, nr Part A, s. 30-44Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Reconstructing dust Mass Accumulation Rate (MAR) from loess deposits is critical to understanding past atmospheric mineral dust activity and requires accurate independent age models from loess deposits across Europe and Asia. Previous correlations of loess in Europe and China have tended to focus on multi-millennial timescales, with no detailed examination of dust MAR at the two ends of the Eurasian loess belt on shorter, sub-orbital scales. Here we present a detailed quartz optically stimulated luminescence (OSL) chronology from the Serbian Titel Loess Plateau (Veliki Surduk loess core) and the Chinese Loess Plateau (Lingtai section). The luminescence ages pass internal tests and show consistent increases in age with depth, with no obvious major hiatuses. However, as reported before, it seems the quartz OSL technique is only capable of accurate age determination up to accrued doses of ca. 150 Gy (ca. 30–40 ka) due to approaching field saturation of the quartz OSL signal. Two age-depth models were used to reconstruct dust MARs, where one utilises OSL data solely and the other additionally makes assumptions about sedimentation rates. Although short-term fluctuations in MAR are model dependent, general MAR patterns between the two sites are very similar, with peak MAR occurring rather late in the last glacial (ca. 13–25 ka). This suggests that at least broad scale trends in dust activity within the last glacial period may be similar at a continental scale.

  • 17. Smith, Mike J.
    et al.
    Stevens, Thomas
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Geovetenskapliga sektionen, Institutionen för geovetenskaper, Luft-, vatten- och landskapslära.
    MacArthur, Alasdair
    Malthus, Tim J.
    Lu, Huayu
    Characterising Chinese loess stratigraphy and past monsoon variation using field spectroscopy2011Inngår i: Quaternary International, ISSN 1040-6182, E-ISSN 1873-4553, Vol. 234, s. 146-158Artikkel i tidsskrift (Fagfellevurdert)
  • 18. Svircev, Zorica
    et al.
    Markovic, Slobodan B.
    Stevens, Thomas
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Geovetenskapliga sektionen, Institutionen för geovetenskaper, Luft-, vatten- och landskapslära.
    Codd, Geoffrey A.
    Smalley, Ian
    Simeunovic, Jelica
    Obreht, Igor
    Dulic, Tamara
    Pantelic, Dijana
    Hambach, Ulrich
    Importance of biological loess crusts for loess formation in semi-arid environments2013Inngår i: Quaternary International, ISSN 1040-6182, E-ISSN 1873-4553, Vol. 296, s. 206-215Artikkel i tidsskrift (Fagfellevurdert)
  • 19. Tonkov, Spassimir
    et al.
    Bozilova, Elissaveta
    Possnert, Göran
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Jonfysik.
    Velcev, Angel
    A contribution to the postglacial vegetation history of the Rila Mountains, Bulgaria: The pollen record of Lake Trilistnika2008Inngår i: Quaternary International, ISSN 1040-6182, E-ISSN 1873-4553, Vol. 190, nr 1, s. 58-70Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Pollen analysis of sediments from the glacial Lake Trilistnika (2216 m) in the Northwestern Rila Mountains (Bulgaria), supplemented by 13 radiocarbon dates, allowed the reconstruction of the palaeoenvironment and vegetation history in postglacial time. The exact time of the cirque glacier retreat is still under discussion but the lake was free of ice before 15,000 cal. BP. when sedimentation of gray silt began. The lateglacial vegetation, composed of Artemisia, Chenopodiaceae and Poaceae, with isolated stands of Pinus and Juniperus-Ephedra shrubland, dominated during the stadials and partly retreated during the Bolling/Allerod interstadial complex. The afforestation in the early Holocene (11,500-7800 cal. BP) started with the distribution of pioneer Benda forests with groups of Pinus (P. mugo, P. sylvestris and P. peuce) at mid-high altitudes, and Quercus forests with Tilia, Ulmus, Fraxinus, Corylus below the birch zone. The change to more humid and cooler climate ca. 7800-7500 cal. BP favored the vertical migration of Abies, P. sylvestris and P. peuce. The establishment of Fagus sylvatica took place after 5200 cal. BP, when pure or mixed beech communities were formed. The last tree which invaded the coniferous belt between 4300 and 3400 cal. BP was Picea abies. The first expansion maximum of spruce was recorded after ca. 2700 cal. BP. The vegetation development in historical times was also influenced by human interference, indicated by the continuous presence of pollen anthropogenic indicators Such as Triticum, Secale, Hordeum, Plantago lanceolata, Rumex, Scleranthus, Juniperus.

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