Journal of Quaternary Science最新文献

筛选
英文 中文
Late Wolstonian and Ipswichian (MIS 6/5e) sediment fill in a limestone sinkhole, Askham Fell, northern England 英格兰北部阿斯卡姆丘陵石灰岩天坑中的沃尔斯顿晚期和伊普斯维奇期(MIS 6/5e)沉积物填充物
IF 2.3 3区 地球科学
Journal of Quaternary Science Pub Date : 2023-12-19 DOI: 10.1002/jqs.3589
Paul A. Carling, David J. A. Evans, Mahmoud Abbas, Xianjiao Ou, Zhongping Lai
{"title":"Late Wolstonian and Ipswichian (MIS 6/5e) sediment fill in a limestone sinkhole, Askham Fell, northern England","authors":"Paul A. Carling,&nbsp;David J. A. Evans,&nbsp;Mahmoud Abbas,&nbsp;Xianjiao Ou,&nbsp;Zhongping Lai","doi":"10.1002/jqs.3589","DOIUrl":"10.1002/jqs.3589","url":null,"abstract":"<div>\u0000 \u0000 <p>In 2019 a sinkhole (doline) occurred in Late Devensian till above fissured limestone in northern England. Most sediment plugging the fissure was evacuated down into a karstic drainage system. The residual sedimentary fill comprises three main lithofacies, dated using optically stimulated luminescence to between 170.7 ± 40.0 and 56.1 ± 13.5 ka. The earliest date demonstrates fissures were present in the limestone pavement at the time of Marine Isotope Stage (MIS) 6, or shortly thereafter. The fissure filled with fine sand and silt due to surface runoff and aeolian processes probably at the MIS 6 to MIS 5e transition after Wolstonian glacial ice had retreated. The deposits then collapsed into the karst system. Further fine sand and silt deposition occurred during MIS 3; this deposit filled the central cavity surrounded by residual MIS 6/5e deposits. The sequence was capped by till as Late Devensian (MIS 2) ice transgressed the area. Solution fissures in the karst surfaces of northern England may pre-date the Late Devensian glaciation. Moreover, fissures are repositories of pre-Devensian sediment deposits which survived the Late Devensian glaciation and the Ipswichian interglacial. Such sites should provide information on the nature and timing of pre-Devensian glacial–interglacial events and shed light on basal ice conditions and glaciokarst drainage behaviour.</p>\u0000 </div>","PeriodicalId":16929,"journal":{"name":"Journal of Quaternary Science","volume":"39 2","pages":"224-233"},"PeriodicalIF":2.3,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138825091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluating the impact of the Storegga tsunami on Mesolithic communities in Northumberland 评估斯托雷加海啸对诺森伯兰中石器时代社区的影响
IF 2.3 3区 地球科学
Journal of Quaternary Science Pub Date : 2023-12-19 DOI: 10.1002/jqs.3586
Patrick D Sharrocks, Jon Hill
{"title":"Evaluating the impact of the Storegga tsunami on Mesolithic communities in Northumberland","authors":"Patrick D Sharrocks,&nbsp;Jon Hill","doi":"10.1002/jqs.3586","DOIUrl":"10.1002/jqs.3586","url":null,"abstract":"<p>The Holocene Storegga tsunami, 8120–8175 cal a <span>bp</span>, resulted in run-up heights of up to 3–6 m around mainland UK and coincided with a suggested large population decline in the coastally focused Mesolithic population in Northern Britain. At Howick, Northumberland, the site of a Mesolithic settlement, a nearby sediment deposit may be of tsunamigenic origin, but this is uncertain. Here, a numerical model was used to simulate the Storegga tsunami in Northumberland. Two scenarios of relative sea-level change, and a third incorporating high tide, were simulated with mortality estimated within the intertidal zone for the Mesolithic sites in the region. The results showed that only with the addition of high tide could the sediment deposit site have been inundated by the tsunami. At Howick, mortality estimates varied but were up to 100% within the resource-rich intertidal zone. The tsunami inundated a large area and would have led to the loss of key resources such as hazelnuts prior to the winter months. These combined effects would have probably been replicated throughout coastal settlements in Northern Britain, possibly leading to the contemporary population decline estimated to have occurred at this time.</p>","PeriodicalId":16929,"journal":{"name":"Journal of Quaternary Science","volume":"39 3","pages":"473-487"},"PeriodicalIF":2.3,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jqs.3586","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138824980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Coastal Lagoonal Evolution within the Early Holocene Humber Estuary, eastern England 英格兰东部全新世早期亨伯河口的沿海泻湖演变
IF 2.3 3区 地球科学
Journal of Quaternary Science Pub Date : 2023-12-18 DOI: 10.1002/jqs.3585
M. J. Grant, T. Hill, S. Evans, M. Law
{"title":"Coastal Lagoonal Evolution within the Early Holocene Humber Estuary, eastern England","authors":"M. J. Grant,&nbsp;T. Hill,&nbsp;S. Evans,&nbsp;M. Law","doi":"10.1002/jqs.3585","DOIUrl":"10.1002/jqs.3585","url":null,"abstract":"<p>Rapid sea-level rise during the Early Holocene around the North Sea coastal lowlands provided conditions under which estuarine and coastal features, with no modern equivalents, could be created. Investigation of nearshore sediments within the Outer Humber Estuary, UK, has identified a tidal lagoonal system, created between c. 9000 and 7800 cal a <span>bp</span>. These sequences show the initial flooding of a carr woodland, prior to the establishment of more saline conditions as the tidal lagoonal system developed. Inter-core comparisons, based on diatom and pollen analyses, suggest variations in the structure of a tidal lagoon setting, which probably lasted for only a brief period before being submerged by rising sea levels. The absence of an erosive contact in several of the sequences studied has permitted the creation of the oldest sea-level index points for the Outer Humber Estuary, providing validation for the current glacial isostatic adjustment models for the region.</p>","PeriodicalId":16929,"journal":{"name":"Journal of Quaternary Science","volume":"39 2","pages":"234-247"},"PeriodicalIF":2.3,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jqs.3585","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138715199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Equids (Equus sp.) in southern Spain from the Palaeolithic to the Bronze Age 旧石器时代至青铜时代西班牙南部的马科动物(Equus sp.)
IF 2.3 3区 地球科学
Journal of Quaternary Science Pub Date : 2023-12-18 DOI: 10.1002/jqs.3580
Eloísa Bernáldez-Sánchez, Esteban García-Viñas, Fernando Sanguino, David Villalón, Jennifer A. Leonard
{"title":"Equids (Equus sp.) in southern Spain from the Palaeolithic to the Bronze Age","authors":"Eloísa Bernáldez-Sánchez,&nbsp;Esteban García-Viñas,&nbsp;Fernando Sanguino,&nbsp;David Villalón,&nbsp;Jennifer A. Leonard","doi":"10.1002/jqs.3580","DOIUrl":"10.1002/jqs.3580","url":null,"abstract":"<p>The genus <i>Equus</i> was represented on the Iberian Peninsula by four species during the late Quaternary: the wild, now extinct, <i>E. ferus</i> (wild horse) and <i>E. hydruntinus</i> (European wild ass) and the extant, domestic <i>E. caballus</i> (horse) and <i>E. asinus</i> (donkey). The distribution and timing of the extinctions of the wild species and arrival of the domestic species is important to understand the changing environment and cultures through this dynamic period in one of the three southern Pleistocene glacial refugia in Europe. Here we collected data from all zooarchaeological studies that meet basic completeness criteria from the Palaeolithic to the Bronze Age (45–3.2 ka <span>bp</span>) and analysed the equine data in light of other large mammals at the same sites in order to document the species turnover and distributions through this culturally and ecologically dynamic period. The vast majority of Palaeolithic <i>Equus</i> were confidently identified as <i>E. ferus</i>, and by the Bronze age as <i>E. caballus</i>, with much uncertainty in between. Over time the larger equids (horses) were much more common than the smaller equids (asses). Equids were not common, but they were distributed across the southern Iberian peninsula through the Chalcolithic, and then appear to have become restricted to the drier eastern region in the Bronze Age. These analyses indicate that both <i>E. ferus</i> and <i>E. hydruntinus</i> went extinct by the end of the Pleistocene/Palaeolithic in Andalucia. Not all communities maintained equal numbers of equids, and their distribution changed with the changing climate through time, most notably between the Chalcolithic and the Bronze Age when confidence in species identification and local density of horses increase, but the distribution is restricted to the drier eastern region.</p>","PeriodicalId":16929,"journal":{"name":"Journal of Quaternary Science","volume":"39 2","pages":"261-276"},"PeriodicalIF":2.3,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jqs.3580","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138715129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A tale of two islands: tectonic and orbital controls on marine terrace reoccupation, Channel Islands National Park, California, USA 两个岛屿的故事:美国加利福尼亚州海峡群岛国家公园海洋阶地再占据的构造和轨道控制
IF 2.3 3区 地球科学
Journal of Quaternary Science Pub Date : 2023-12-15 DOI: 10.1002/jqs.3581
Daniel R. Muhs, Lindsey T. Groves, Kathleen R. Simmons, R. Randall Schumann, Stephen B. DeVogel
{"title":"A tale of two islands: tectonic and orbital controls on marine terrace reoccupation, Channel Islands National Park, California, USA","authors":"Daniel R. Muhs,&nbsp;Lindsey T. Groves,&nbsp;Kathleen R. Simmons,&nbsp;R. Randall Schumann,&nbsp;Stephen B. DeVogel","doi":"10.1002/jqs.3581","DOIUrl":"10.1002/jqs.3581","url":null,"abstract":"<p>In areas of low uplift rate on the Pacific Coast of North America, reoccupation of emergent marine terraces by later high sea-stands has been hypothesised to explain the existence of thermally anomalous fauna (mixtures of warm and cool species) of last interglacial age. If uplift rates have been low for much of the Quaternary, it follows that higher (older) terraces should also show evidence of reoccupation. Strontium isotope analyses of fossils from a high-elevation marine terrace on Anacapa Island, California, yield ages ranging from ~2.4–2.3 Ma to ~1.4–1.5 Ma. These results indicate that terrace reoccupation and fossil mixing on Anacapa Island could have taken place over several interglacial periods in the early Pleistocene. Terrace reoccupation over this time period is likely a function of both a low uplift rate and the timing of orbital forcing of glacial–interglacial cycles. Climate change in the early Pleistocene was modulated by the 41 ka obliquity cycle, and glacial–interglacial cycles were much shorter than later in the Pleistocene. Nearby San Miguel Island also has evidence of terrace reoccupation, with Sr isotope ages of shells from several high-elevation terraces ranging from ~1.21–1.25 Ma to ~0.43–0.50 Ma. However, the frequency of terrace reoccupation was lower than on Anacapa Island. The uplift rate of San Miguel Island is higher than that of Anacapa Island and terraces formed when glacial–interglacial cycles were longer. The frequency of marine terrace reoccupation is controlled by the rate of tectonic uplift and the timing of orbital forcing of sea level change during glacial–interglacial cycles.</p>","PeriodicalId":16929,"journal":{"name":"Journal of Quaternary Science","volume":"39 2","pages":"173-207"},"PeriodicalIF":2.3,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138683120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The importance of terrestrial carbon sequestration during Termination 1 终止 1 期间陆地固碳的重要性
IF 2.3 3区 地球科学
Journal of Quaternary Science Pub Date : 2023-12-13 DOI: 10.1002/jqs.3579
GEORGE L. Jacobson, STEPHEN A. Norton, KIRK A. Maasch
{"title":"The importance of terrestrial carbon sequestration during Termination 1","authors":"GEORGE L. Jacobson,&nbsp;STEPHEN A. Norton,&nbsp;KIRK A. Maasch","doi":"10.1002/jqs.3579","DOIUrl":"10.1002/jqs.3579","url":null,"abstract":"<div>\u0000 \u0000 <p>During the transition from the Last Glacial Maximum (LGM) to the Holocene, terrestrial carbon sequestration occurred primarily in boreal forests and forest soils largely on landscapes that had been covered by ice sheets. Major processes operating during this period included radiative warming from rising concentrations of atmospheric CO<sub>2</sub> (degassing oceans and oxidation of permafrost); increased seasonal warming associated with axial precession; melting of alpine glaciers and ice sheets; exposure of new land surfaces; and sequestration of carbon in expanding terrestrial vegetation and soils. We examine mechanisms of warming that melted glacial ice; temporal and spatial availability of newly exposed landscapes; rates at which plant colonization and soil development occurred; estimates of terrestrial carbon sequestration; and how those processes interacted with one another. Data from the West Antarctic Ice Sheet Divide ice core show that from 18 to 11 cal ka <span>bp</span> the concentration of atmospheric CO<sub>2</sub> rose by ≈80 ppmv (≈170 Gt C); published estimates of net terrestrial carbon sequestration (following photosynthesis) are considerably higher (450–1250 Gt C). Thus, accumulation of carbon in terrestrial vegetation and soils played an important role in modulating atmospheric CO<sub>2</sub> and, indirectly, Earth's climate during Termination 1, and possibly during earlier Quaternary ice ages.</p>\u0000 </div>","PeriodicalId":16929,"journal":{"name":"Journal of Quaternary Science","volume":"39 2","pages":"163-172"},"PeriodicalIF":2.3,"publicationDate":"2023-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138692876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The recent evolution of the salt marsh ‘Pantano Grande’ (NE Sicily, Italy): interplay between natural and human activity over the last 3700 years 大潘塔诺盐沼(意大利西西里岛东北部)的近期演变:过去 3700 年间自然与人类活动的相互作用
IF 2.3 3区 地球科学
Journal of Quaternary Science Pub Date : 2023-12-11 DOI: 10.1002/jqs.3583
Jordan Palli, Lorenzo Monaco, Monica Bini, Emanuela Cosma, Biagio Giaccio, Adam Izdebski, Alessia Masi, Scott Mensing, Gianluca Piovesan, Veronica Rossi, Laura Sadori, Bernd Wagner, Giovanni Zanchetta
{"title":"The recent evolution of the salt marsh ‘Pantano Grande’ (NE Sicily, Italy): interplay between natural and human activity over the last 3700 years","authors":"Jordan Palli,&nbsp;Lorenzo Monaco,&nbsp;Monica Bini,&nbsp;Emanuela Cosma,&nbsp;Biagio Giaccio,&nbsp;Adam Izdebski,&nbsp;Alessia Masi,&nbsp;Scott Mensing,&nbsp;Gianluca Piovesan,&nbsp;Veronica Rossi,&nbsp;Laura Sadori,&nbsp;Bernd Wagner,&nbsp;Giovanni Zanchetta","doi":"10.1002/jqs.3583","DOIUrl":"10.1002/jqs.3583","url":null,"abstract":"<p>Combined natural processes and human activities shaped the late Holocene landscape history in many Mediterranean regions. This is especially true with areas subjected to specific human interest, such as coastal areas morphologically suitable to the establishment of harbours. Here, we test the hypothesis on the location of the Roman harbour <i>Portus Trajectus</i> in Peloro Cape (NE Sicily, Italy) and describe the evolution of the area over the last 3700 years through lithostratigraphic, geochemical, meiofauna and microfossil analyses performed on a new sediment core recovered from the coastal salt marsh <i>Pantano Grande</i> (aka <i>Lago di Ganzirri</i>). The age–depth model was developed on radiocarbon dates and geochemical fingerprinting of two tephra layers. Results indicate that the area underwent dramatic changes <i>ca</i>. 650 <span>bce.</span> The anthropogenic impact of Greek colonies may have contributed to modifying the coastal environment of Peloro Cape due to their widespread impact on natural resources. This happened at many localities in the Mediterranean, indicating the magnitude of impact of the Greek colonies over the landscape. According to our results, it is unlikely that the current <i>Pantano Grande</i> basin was used as a harbour in Roman times, although the presence of a harbour in the nearby <i>Pantano Piccolo</i> marsh cannot be excluded. <i>Pantano Grande</i> had been isolated from the sea for more than 2000 years. Human intervention in the 19<sup>th</sup> century halted that isolation and provided the background for the ecological, economic and social functions the salt marsh performs today.</p>","PeriodicalId":16929,"journal":{"name":"Journal of Quaternary Science","volume":"39 2","pages":"327-339"},"PeriodicalIF":2.3,"publicationDate":"2023-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jqs.3583","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138572281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Radiocarbon dates from the Netherlands and Doggerland as a proxy for vegetation and faunal biomass between 55 and 5 ka cal bp 荷兰和多格尔兰的放射性碳年代,作为 55 ka cal bp 至 5 ka cal bp 之间植被和动物生物量的代用指标
IF 2.3 3区 地球科学
Journal of Quaternary Science Pub Date : 2023-12-06 DOI: 10.1002/jqs.3582
B. Van Geel, J. Van Der Plicht, C. Kasse, D. Mol
{"title":"Radiocarbon dates from the Netherlands and Doggerland as a proxy for vegetation and faunal biomass between 55 and 5 ka cal bp","authors":"B. Van Geel,&nbsp;J. Van Der Plicht,&nbsp;C. Kasse,&nbsp;D. Mol","doi":"10.1002/jqs.3582","DOIUrl":"10.1002/jqs.3582","url":null,"abstract":"<p>Three hundred forty-one radiocarbon dates from the Groningen radiocarbon database are compiled in this study. They show for the first time that organic sediment samples from the eastern Netherlands and mammal bones from Doggerland reflect shifts in the presence and the density of vegetation (food for herbivores) and mammal biomass during the last ice age (Weichselian Stage, ~119–14.7 ka cal <span>bp</span>). Comparison with oxygen isotope curves of Greenland ice cores and geomorphological data shows that cold climate, in particular during the younger part of the Weichselian Middle Pleniglacial and during the Late Pleniglacial, and related scarcity or even absence of vegetation, were limiting factors for the carrying capacity of the landscape and thus for the population density of large herbivores during the period covered by <sup>14</sup>C dating (last ca. 55 000 years). A ‘fossil gap’ during the Late Pleniglacial lasted ca. 13 000 years from ca. 28 to 15 ka cal \u0000<span>bp</span>. Previous research from the nearby Eifel region in Germany shows that environmental conditions were less extreme (‘refugium conditions’) than in the Netherlands, taking into account the continuous presence of spores of coprophilous fungi in the Eifel, indicating uninterrupted food supply for herbivores.</p>","PeriodicalId":16929,"journal":{"name":"Journal of Quaternary Science","volume":"39 2","pages":"248-260"},"PeriodicalIF":2.3,"publicationDate":"2023-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jqs.3582","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138579413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Rapid terrace incision and Quaternary landscape evolution in central Patagonia 巴塔哥尼亚中部阶地快速切割与第四纪景观演化
IF 2.3 3区 地球科学
Journal of Quaternary Science Pub Date : 2023-11-28 DOI: 10.1002/jqs.3578
Varyl Robert Thorndycraft
{"title":"Rapid terrace incision and Quaternary landscape evolution in central Patagonia","authors":"Varyl Robert Thorndycraft","doi":"10.1002/jqs.3578","DOIUrl":"10.1002/jqs.3578","url":null,"abstract":"<p>The debate over isostatic uplift versus discharge as drivers of Quaternary river incision is explored here through geospatial analysis of a ~250-m-relief terrace sequence from the Río Pinturas (Argentine Patagonia). The geomorphic setting of the Cañadon Caracoles reach allows evaluation of discharge as a driver of terrace incision because advancing ice during Pleistocene glaciations blocked Pacific drainage and routed meltwater from an expanded ~10<sup>4</sup>-km<sup>2</sup> catchment to the Atlantic through the dryland steppe of the study area. Twenty-two terrace levels, some assigned to previously dated ice margins [Marine Isotope Stage (MIS) 32–36, MIS 16, MIS 8 and MIS 2], were identified. Average net incision since 800 ka (~0.34 m ka<sup>−1</sup>) exceeded regional uplift rates. The MIS 2 terraces, with <i>ante quem</i> and <i>post quem</i> age constraint on the timing of terrace formation, show that terrace incision was episodic and faster still during a transitional warming climate. Glacier recession and proglacial lake formation at ~18 ka led to rapid incision of ~11.7 m ka<sup>−1</sup> over a few millennia. River capture and negligible flow from ~15.0 ka caused fan-dammed lake formation on the valley floor and vertical stability during MIS 1. The Pinturas terraces demonstrate rapid incision can be driven by discharge and sediment dynamics.</p>","PeriodicalId":16929,"journal":{"name":"Journal of Quaternary Science","volume":"39 2","pages":"208-223"},"PeriodicalIF":2.3,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jqs.3578","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138496829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Quaternary alluvial paleosols of the Atbara River, eastern Sudan: description and paleoenvironments 苏丹东部阿特巴拉河第四纪冲积古土壤:描述与古环境
IF 2.3 3区 地球科学
Journal of Quaternary Science Pub Date : 2023-11-22 DOI: 10.1002/jqs.3574
M. Mohammednoor, F. Bibi, A. Eisawi, S. Tsukamoto, R. Bussert
{"title":"Quaternary alluvial paleosols of the Atbara River, eastern Sudan: description and paleoenvironments","authors":"M. Mohammednoor,&nbsp;F. Bibi,&nbsp;A. Eisawi,&nbsp;S. Tsukamoto,&nbsp;R. Bussert","doi":"10.1002/jqs.3574","DOIUrl":"10.1002/jqs.3574","url":null,"abstract":"<p>Quaternary climatic changes in the Nile Basin and their effects on the evolution of African mammals and vegetation are poorly understood, particularly for the last 1 Ma. Pleistocene (~230 to &lt;17 ka) alluvial sediments exposed along the middle stretches of the Atbara River in eastern Sudan are rich in fossil vertebrates and are ideal for paleoenvironmental reconstruction during this time interval. We performed petrographic, mineralogical and geochemical analyses on the middle Atbara paleosols to reconstruct the paleoclimate and paleolandscape. We describe Aridisols/Calcisols characterized by calcretes and containing gypsum and halite, and Vertisols with pedogenic slickensides and a relatively large amount of smectite. The paleosols indicate that the study area transitioned from an arid to semi-arid climate during Marine Isotope Stage (MIS)7/6, to a more humid climate during MIS5, and then a return to more arid conditions during MIS2. The studied paleosols likely supported a range of grassland and wooded grassland savanna habitats. Our study confirms that the Atbara River Valley provided favorable living conditions for Pleistocene large mammal communities including <i>Homo</i>, potentially facilitating dispersals out of Africa through the Nile corridor.</p>","PeriodicalId":16929,"journal":{"name":"Journal of Quaternary Science","volume":"39 1","pages":"102-118"},"PeriodicalIF":2.3,"publicationDate":"2023-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jqs.3574","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138496828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信