Quaternary Science Reviews最新文献

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Mechanisms driving the global tropical response to a weakened AMOC during Heinrich Stadial 1 Heinrich Stadial 1期间全球热带对AMOC减弱的响应机制
IF 3.3 1区 地球科学
Quaternary Science Reviews Pub Date : 2025-08-27 DOI: 10.1016/j.quascirev.2025.109567
A.E. Lawman , C. Sun , X. Wu , T. Sun , N. Piatrunia , K. Gomez , M. Kageyama , U. Merkel , M. Prange , B. Otto-Bliesner , X. Zhang , P. DiNezio , T. Shanahan
{"title":"Mechanisms driving the global tropical response to a weakened AMOC during Heinrich Stadial 1","authors":"A.E. Lawman ,&nbsp;C. Sun ,&nbsp;X. Wu ,&nbsp;T. Sun ,&nbsp;N. Piatrunia ,&nbsp;K. Gomez ,&nbsp;M. Kageyama ,&nbsp;U. Merkel ,&nbsp;M. Prange ,&nbsp;B. Otto-Bliesner ,&nbsp;X. Zhang ,&nbsp;P. DiNezio ,&nbsp;T. Shanahan","doi":"10.1016/j.quascirev.2025.109567","DOIUrl":"10.1016/j.quascirev.2025.109567","url":null,"abstract":"<div><div>Heinrich Stadial 1 (HS1; <span><math><mo>∼</mo></math></span>17.5-15 thousand years before present) was characterized by a weakening of the Atlantic Meridional Overturning Circulation (AMOC) that resulted in large hydroclimate changes across the global tropics. Here we investigate the mechanisms driving tropical rainfall changes by comparing an ensemble of numerical simulations against paleoclimate proxy records spanning the global tropics. Our multi-model ensemble and synthesis of 154 hydroclimate records both show drier conditions north of the equator and wetter conditions south of the equator - a pattern broadly consistent with a meridional mean shift in tropical rain belts. However, changes in rainfall outside of the Atlantic and in monsoonal regions require more complex mechanisms to explain the proxy-inferred patterns. Cooling of the tropical North Atlantic emerges as the key link connecting AMOC weakening and the tropical hydroclimate response. Mechanisms involving tropical North Atlantic cooling are essential for propagating the North Atlantic climate signals to remote regions such as West Africa, the Indian Ocean, and the Andes. Simulations and the proxy synthesis show globally consistent response patterns except for the Maritime Continent. Reconciling these differences will require the separation of different proxy types and improved proxy system modeling for this region.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"369 ","pages":"Article 109567"},"PeriodicalIF":3.3,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144904023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Ancient migration routes: on the road to the Canadian and Greenlandic Arctic 古代迁徙路线:在通往加拿大和格陵兰岛北极的路上
IF 3.3 1区 地球科学
Quaternary Science Reviews Pub Date : 2025-08-26 DOI: 10.1016/j.quascirev.2025.109565
Quentin Verriez , Margot Martinet , Anna Tomasinelli , Claire Houmard
{"title":"Ancient migration routes: on the road to the Canadian and Greenlandic Arctic","authors":"Quentin Verriez ,&nbsp;Margot Martinet ,&nbsp;Anna Tomasinelli ,&nbsp;Claire Houmard","doi":"10.1016/j.quascirev.2025.109565","DOIUrl":"10.1016/j.quascirev.2025.109565","url":null,"abstract":"<div><div>The question of human movements has always been complex and increasingly difficult to understand as we delve further into the past. The situation might seem somewhat easier to grasp in the Arctic, particularly in Canada and Greenland, due to the relatively limited cultural diversity with only four main cultural groups across the entire chronology. However, chronological challenges and the vast expanse of the territory make it difficult to reconstruct migratory trajectories and the motivations behind these large-scale human movements over considerable distances in relatively short timeframes. This article presents the dates, populations involved, and driving forces proposed to explain the two major migratory movements that took place around 2500 cal. BCE and the 13th century CE, respectively.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"369 ","pages":"Article 109565"},"PeriodicalIF":3.3,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144904026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
A tropical Pacific role for the Mid-Pleistocene Transition 中更新世过渡期的热带太平洋角色
IF 3.3 1区 地球科学
Quaternary Science Reviews Pub Date : 2025-08-26 DOI: 10.1016/j.quascirev.2025.109595
Paul S. Wilcox
{"title":"A tropical Pacific role for the Mid-Pleistocene Transition","authors":"Paul S. Wilcox","doi":"10.1016/j.quascirev.2025.109595","DOIUrl":"10.1016/j.quascirev.2025.109595","url":null,"abstract":"<div><div>The Mid-Pleistocene Transition (MPT), between ∼1.5 and 0.9 million years ago, represents one of the most perplexing climate transitions yet discovered in oceanic benthic δ<sup>18</sup>O records. It is characterized by the change in the frequency/amplitude of δ<sup>18</sup>O, from 41,000-year cycles to 100,000-year cycles. Although the cause of this transition is still largely unsolved, there is an exceptionally strong bias in proposed explanations from high-latitude regions, possibly limiting a complete explanation of this puzzling climate phenomena. Here, I provide an alternative explanation of the MPT, with forcings originating from the tropical Pacific.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"369 ","pages":"Article 109595"},"PeriodicalIF":3.3,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144904022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Influence of regional climate and local hydrological conditions on carbon accumulation process within the Jinchuan peatland (Northeast China) since the middle Holocene 全新世中期以来区域气候和局部水文条件对金川泥炭地碳积累过程的影响
IF 3.3 1区 地球科学
Quaternary Science Reviews Pub Date : 2025-08-21 DOI: 10.1016/j.quascirev.2025.109581
Yanmin Dong , Jing Li , Sizhu Li , Lu Yu , Zhiwei Xu , Shengzhong Wang
{"title":"Influence of regional climate and local hydrological conditions on carbon accumulation process within the Jinchuan peatland (Northeast China) since the middle Holocene","authors":"Yanmin Dong ,&nbsp;Jing Li ,&nbsp;Sizhu Li ,&nbsp;Lu Yu ,&nbsp;Zhiwei Xu ,&nbsp;Shengzhong Wang","doi":"10.1016/j.quascirev.2025.109581","DOIUrl":"10.1016/j.quascirev.2025.109581","url":null,"abstract":"<div><div>Peatlands represent a vital component of the terrestrial carbon pool owing to their high carbon sequestration efficiency. A comprehensive understanding of the carbon accumulation process and its driving factors is essential to assess future carbon reservoir functions. Within a single peatland, carbon accumulation may differ among sites because of local conditions. However, this spatial variability has received little attention. To address this gap, four peat cores from the Jinchuan (JC) peatland in the Changbai Mountains were analyzed to investigate the spatial heterogeneity and consistency of carbon accumulation since the middle Holocene. <sup>14</sup>C Accelerator Mass Spectrometry was used to establish the chronological framework of each core, and the organic carbon content and bulk density were measured to calculate the carbon accumulation rate (CAR). The moisture conditions at each sampling location were reconstructed using the carbon stable isotopes (δ<sup>13</sup>C) values of α-cellulose in <em>Carex</em> spp. residues. The influence of both regional climate and local hydrological conditions on CAR was analyzed. The results indicated that the CAR values for the four cores were 62.9, 53.4, 44.2, and 47.7 g C/m<sup>2</sup>/yr, respectively. The moisture conditions across the sampling sites generally declined over millennial timescales, which is consistent with the decreasing regional precipitation in the Changbai Mountains. Between 6.5 and 1.5 kyr BP, the spatial heterogeneity in CAR demonstrated that local factors, such as topography and moisture conditions, were the dominant controls. Over the last 1.5 kyr BP, the consistent CAR values across the JC peatland indicated that the regional climate became the primary driver. This study demonstrates that hydrological variation is the key factor driving spatial heterogeneity in CAR and highlights that the dominant controls on CAR may shift over time. These findings can improve our understanding of climate-driven carbon accumulation in peatlands by integrating local environmental influences.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"369 ","pages":"Article 109581"},"PeriodicalIF":3.3,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144879075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Land-snail eggs from Chinese L9 loess strata and seasonal cooling events during Marine Isotope Stages 24–22 中国L9黄土地层的蜗牛卵与海洋同位素阶段24-22的季节降温事件
IF 3.3 1区 地球科学
Quaternary Science Reviews Pub Date : 2025-08-21 DOI: 10.1016/j.quascirev.2025.109584
Fengjiang Li , Naiqin Wu , Denis-Didier Rousseau , Linpei Huang , Bin Wu , Qingzhen Hao , Yajie Dong , Xiaoyun Chen
{"title":"Land-snail eggs from Chinese L9 loess strata and seasonal cooling events during Marine Isotope Stages 24–22","authors":"Fengjiang Li ,&nbsp;Naiqin Wu ,&nbsp;Denis-Didier Rousseau ,&nbsp;Linpei Huang ,&nbsp;Bin Wu ,&nbsp;Qingzhen Hao ,&nbsp;Yajie Dong ,&nbsp;Xiaoyun Chen","doi":"10.1016/j.quascirev.2025.109584","DOIUrl":"10.1016/j.quascirev.2025.109584","url":null,"abstract":"<div><div>Knowledge of the long-term evolution of seasonal cooling events contributes to our understanding of glacial-interglacial cycles. Recently, using land-snail eggs as a proxy, we have reconstructed the evolution of seasonal cooling events during glacial-interglacial cycles of the last 490 ka, corresponding to Marine Isotope Stages (MIS) 12–1. During this time interval, seasonal cooling events are strong during most climate cooling shifts. However, it is unclear how such events evolved under climate conditions significantly different from those during the last five climatic cycles. As the ending segment of the Mid-Pleistocene Transition (MPT), MIS 24–22 (∼940–870 ka) yields different climate conditions from those during the last five climatic cycles. Here we present two parallel land-snail egg records from the entire L9 loess and the upper part of the underlain S9 paleosol of the Chinese Loess Plateau (CLP), covering the time interval between 950 and 860 ka. Our results show that land-snail egg abundance documents four strong seasonal cooling events (SE-4 to SE-1). SE-4 and SE-2 occur during climate cooling transitions of MIS 25/24 and MIS 23/22, respectively; SE-3 and SE-1 occur near the glacial maxima of MIS 24 and MIS 22, respectively. This indicates that during the ending interval of the MPT, seasonal cooling events occurred during both climate cooling transitions and glacial maxima, but over the last five glacial-interglacial cycles, they mainly occurred during climate cooling transitions, as indicated by our previous results. The cooling-transition events, SE-4 and SE-2, are stronger than the glacial-maximum ones, SE-3 and SE-1. They do not seem to occur during deglacials and the warming maximum of MIS 23. These results lead us to infer that the occurrence of seasonal cooling events seems to be more closely related to ice-sheet growth at high northern latitudes. A certain amount of ice-sheet growth with low concentrations of ice-rafted debris at high northern latitudes could have strengthened seasonal cooling events over the CLP. However, during the last several glacial maxima, the Northern Hemisphere ice volumes could have been sufficiently large to diminish variability that does not favor the occurrences of seasonal cooling events in the CLP. Moreover, decreases in local spring insolation are also likely to have facilitated the occurrence of seasonal cooling events. Our study provides the first evidence to understand the evolution of seasonal cooling events during the ending segment of the MPT.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"369 ","pages":"Article 109584"},"PeriodicalIF":3.3,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144886467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Middle and early Upper Paleolithic settlement of the Georgian caucasus: A general perspective 旧石器时代中期和早期格鲁吉亚高加索地区的定居点:一般观点
IF 3.3 1区 地球科学
Quaternary Science Reviews Pub Date : 2025-08-20 DOI: 10.1016/j.quascirev.2025.109556
Nikoloz Tsikaridze , Ana Mgeladze , Tamar Aghapishvili , Levan Tielidze , Reed Coil , Rusudan Chagelishvili , Eliso Kvavadze , Nikoloz Tskvitinidze , Giorgi Kopaliani , Nikoloz Vanishvili , Guram Dvali , Archil Khachapuridze , Sandrine Prat , Stéphane Péan , Simon Puaud , Stéphanie Bonilauri , Stéphane Jaillet , Erwan Messager , Marie-Hélène Moncel , Marylène Patou-Mathis , Giorgi Nioradze
{"title":"Middle and early Upper Paleolithic settlement of the Georgian caucasus: A general perspective","authors":"Nikoloz Tsikaridze ,&nbsp;Ana Mgeladze ,&nbsp;Tamar Aghapishvili ,&nbsp;Levan Tielidze ,&nbsp;Reed Coil ,&nbsp;Rusudan Chagelishvili ,&nbsp;Eliso Kvavadze ,&nbsp;Nikoloz Tskvitinidze ,&nbsp;Giorgi Kopaliani ,&nbsp;Nikoloz Vanishvili ,&nbsp;Guram Dvali ,&nbsp;Archil Khachapuridze ,&nbsp;Sandrine Prat ,&nbsp;Stéphane Péan ,&nbsp;Simon Puaud ,&nbsp;Stéphanie Bonilauri ,&nbsp;Stéphane Jaillet ,&nbsp;Erwan Messager ,&nbsp;Marie-Hélène Moncel ,&nbsp;Marylène Patou-Mathis ,&nbsp;Giorgi Nioradze","doi":"10.1016/j.quascirev.2025.109556","DOIUrl":"10.1016/j.quascirev.2025.109556","url":null,"abstract":"<div><div>The extent of the Middle Paleolithic (MP) and the transition between the Middle and Upper Paleolithic (UP) in the South Caucasus have been studied for decades, but still many questions remain. In the South Caucasus, there are few securely dated MP and UP sites, despite being rich in cave settlements typologically attributed to these periods. In this article we will be concentrating on the Georgian side of the Caucasus, where only a few Paleolithic sites have been excavated using modern standards. Newly launched archaeological research in the caves of Tsutskhavti, Sakazhia, and Ortvala, and upcoming work at Tsopi and Djruchula, gives us a unique opportunity to expand interdisciplinary research on questions surrounding the origins of the MP and the chronology of the MP/UP transition in Georgia. In this article, we discuss preliminary results of ongoing research and discoveries at the MP and UP sites of Georgia.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"368 ","pages":"Article 109556"},"PeriodicalIF":3.3,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144880098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
A review of the latest early pleistocene mammal record from Selva Vecchia (Verona, northern Italy) and its implications for “the 0.9Ma event” in European faunal dispersal during MIS 21 意大利北部Verona地区Selva Vecchia早更新世哺乳动物最新记录及其对MIS 21欧洲动物传播“0.9Ma事件”的启示
IF 3.3 1区 地球科学
Quaternary Science Reviews Pub Date : 2025-08-20 DOI: 10.1016/j.quascirev.2025.109575
Beniamino Mecozzi , Roberto Zorzin , Irene Tomelleri
{"title":"A review of the latest early pleistocene mammal record from Selva Vecchia (Verona, northern Italy) and its implications for “the 0.9Ma event” in European faunal dispersal during MIS 21","authors":"Beniamino Mecozzi ,&nbsp;Roberto Zorzin ,&nbsp;Irene Tomelleri","doi":"10.1016/j.quascirev.2025.109575","DOIUrl":"10.1016/j.quascirev.2025.109575","url":null,"abstract":"<div><div>The mammalian assemblage from Selva Vecchia (Selvavecchia, or Domegliara) was initially attributed to the latest Early Pleistocene and designated as a Faunal Unit for European Land Mammals Biochronology during the 1980s. Nevertheless, these fossils were never described, and later studies opted for Slivia as Faunal Unit, which has a quite similar chronological context.</div><div>The fossil sample from Selva Vecchia is described here for the first time, enabling the identification of the following large mammals: <em>Bison schoetensackii,</em> Caprinae indet<em>., Cervus elaphus, Sus scrofa, Homotherium latidens, Crocuta crocuta,</em> and <em>Ursus</em> sp. Biochronological indication based on large and small mammals suggest an age slightly preceding the Early-Middle Pleistocene boundary (between 0.85 and 0.78 Ma).</div><div>By comparing the mammal assemblage from Selva Vecchia with other European contexts, a marked faunal turnover is evident just before the beginning of the Middle Pleistocene, with the arrival of modern taxa. In particular, these faunal changes appear to be linked to a cooling trend recognized during the Epivillafranchian, also known as “the 0.9 Ma event”, which led to the disappearance of several long-lasting Villafranchian taxa. Their disappearance created vacant ecological niches, facilitating the dispersal of modern species, slightly before the 0.78 Ma, including <em>Mammuthus trogontherii</em>, Cervus <em>elaphus, Sus scrofa</em> and <em>Crocuta crocuta</em>.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"368 ","pages":"Article 109575"},"PeriodicalIF":3.3,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144867077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Resolving the late Pleistocene (MIS3–1) sedimentary sequence from Doniford, UK: Implications for British-Irish ice sheet extent, megafaunal history and hominin occupation 解决英国Doniford晚更新世(MIS3-1)沉积序列:对英国-爱尔兰冰盖范围、巨型动物历史和人类占领的影响
IF 3.3 1区 地球科学
Quaternary Science Reviews Pub Date : 2025-08-19 DOI: 10.1016/j.quascirev.2025.109509
L.S. Basell , P.S. Toms , C. Norman , R. Hosfield , P. Tanner , J. Wood , A.G. Brown
{"title":"Resolving the late Pleistocene (MIS3–1) sedimentary sequence from Doniford, UK: Implications for British-Irish ice sheet extent, megafaunal history and hominin occupation","authors":"L.S. Basell ,&nbsp;P.S. Toms ,&nbsp;C. Norman ,&nbsp;R. Hosfield ,&nbsp;P. Tanner ,&nbsp;J. Wood ,&nbsp;A.G. Brown","doi":"10.1016/j.quascirev.2025.109509","DOIUrl":"10.1016/j.quascirev.2025.109509","url":null,"abstract":"<div><div>We present a new Optically Stimulated Luminescence (OSL) chronology, detailed sedimentological evidence, new palynological data and a new Palaeolithic artefact from a classic site known for over 100 years. The fluvioperiglacial sedimentary sequence and chronology irrevocably indicates that the BIIS did not reach the north shore of the SW peninsular of the British Isles in MIS 3–2. Both the sedimentology and palynology suggests cool–cold steppic conditions rather than polar desert. The discovery during this project of a new unrolled bout coupé biface is significant since it adds another westerly example of this characteristic Middle Palaeolithic form associated with Neanderthals, that is relatively common in Britain (compared to Europe). The chronology and sedimentology also confirm the likely reworking of the cold fauna and Acheulian artefacts from regional floodplains prior to MIS 3. The site highlights the archaeological potential of actively eroding cliffs for expanding knowledge of hominin occupations of south–western Britain, near to an ‘edge’ of the Middle Palaeolithic world.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"368 ","pages":"Article 109509"},"PeriodicalIF":3.3,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144867201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Geology and chronology of the Ndutu and Naisiusiu type sites: implications for Middle and Later Stone Age occupations at Olduvai Gorge (Tanzania) Ndutu和Naisiusiu类型遗址的地质和年代学:对坦桑尼亚Olduvai峡谷中后期石器时代活动的启示
IF 3.3 1区 地球科学
Quaternary Science Reviews Pub Date : 2025-08-18 DOI: 10.1016/j.quascirev.2025.109578
David Manuel Martín-Perea , Alicia Medialdea , Juan Marín , Natalia Abellán , Irene Solano-Megías , Carlos Arteaga , Antonio Rodríguez-Hidalgo , David Uribelarrea , Xabier Arroyo , Agness Gidna , Audax Mabulla , José Manuel Maíllo-Fernández
{"title":"Geology and chronology of the Ndutu and Naisiusiu type sites: implications for Middle and Later Stone Age occupations at Olduvai Gorge (Tanzania)","authors":"David Manuel Martín-Perea ,&nbsp;Alicia Medialdea ,&nbsp;Juan Marín ,&nbsp;Natalia Abellán ,&nbsp;Irene Solano-Megías ,&nbsp;Carlos Arteaga ,&nbsp;Antonio Rodríguez-Hidalgo ,&nbsp;David Uribelarrea ,&nbsp;Xabier Arroyo ,&nbsp;Agness Gidna ,&nbsp;Audax Mabulla ,&nbsp;José Manuel Maíllo-Fernández","doi":"10.1016/j.quascirev.2025.109578","DOIUrl":"10.1016/j.quascirev.2025.109578","url":null,"abstract":"<div><div>Olduvai Gorge (northern Tanzania) preserves a rich and continuous paleoanthropological record spanning the past two million years. While its Early Stone Age occupations have been intensively studied, the Middle and Later Stone Age sequences, represented by the Ndutu and Naisiusiu Beds, remain less understood. This study presents new geological and geochronological data from the type localities of the Ndutu and Naisiusiu Beds. Using optically stimulated luminescence (OSL), we establish a revised chronological framework for these sedimentary units. The Lower Ndutu Beds, composed of fluvially reworked conglomerates and sands capped by a trachytic tuff and silts, are now dated between 152.9 ± 11.6 ka and 122.9 ± 8.3 ka. The Upper Ndutu Beds include archaeologically rich sandy and silty facies and are dated between 86.9 ± 4.5 ka and 70.8 ± 10.4 ka. At the Naisiusiu type site, a sequence of fluvial, sheetwash, and aeolian deposits yielded OSL dates ranging from 65.3 ± 4.4 ka to 32.8 ± 2.2 ka, suggesting that the LSA occupation at Olduvai began significantly earlier than previously assumed. These results provide refined age estimates for the Middle and Later Stone Age deposits at Olduvai Gorge and confirm a relatively rapid transition between these two technocomplexes during the Late Pleistocene. The data strengthen regional correlations with sites like Nasera and Mumba, providing critical chronological resolution to ongoing debates about the tempo and mode of behavioural evolution in eastern Africa.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"368 ","pages":"Article 109578"},"PeriodicalIF":3.3,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144861103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Chronology of dozens of Late Paleolithic sites in the Ulan Buh Desert, northwest China 中国西北乌兰布和沙漠数十个晚旧石器时代遗址的年代学
IF 3.3 1区 地球科学
Quaternary Science Reviews Pub Date : 2025-08-14 DOI: 10.1016/j.quascirev.2025.109573
Xiaoqi Guo , Xuefeng Sun , Yuan Yao , Lupeng Yu , Feng Li , Shuangwen Yi , Konglan Shao , Lu Teng , Yinghua Wang , Cheng Zhao , Christopher J. Bae , Huayu Lu
{"title":"Chronology of dozens of Late Paleolithic sites in the Ulan Buh Desert, northwest China","authors":"Xiaoqi Guo ,&nbsp;Xuefeng Sun ,&nbsp;Yuan Yao ,&nbsp;Lupeng Yu ,&nbsp;Feng Li ,&nbsp;Shuangwen Yi ,&nbsp;Konglan Shao ,&nbsp;Lu Teng ,&nbsp;Yinghua Wang ,&nbsp;Cheng Zhao ,&nbsp;Christopher J. Bae ,&nbsp;Huayu Lu","doi":"10.1016/j.quascirev.2025.109573","DOIUrl":"10.1016/j.quascirev.2025.109573","url":null,"abstract":"<div><div>The Ulan Buh Desert (UBD) is located in the arid region of northwest China, where a number of lithic artifacts have been surface collected in the past. However, due to the lack of clear <em>in situ</em> archaeological horizons, research on the age and environmental background of prehistoric human occupation in UBD is still in its infancy. Since 2020, field investigations have been conducted in the UBD and 37 new Paleolithic sites have been discovered, including two <em>in situ</em> buried sites (WL1-B and WL36) and 35 surface sites. The lithic collections encompass two different industries: 1) microlithic assemblages primarily composed of microblades; and 2) non-microlithic collections predominantly represented by flakes. The ages of the <em>in situ</em> buried sites were dated by Optically Stimulated Luminescence (OSL) and Accelerator Mass Spectrometry (AMS) <sup>14</sup>C, while the ages of the layers below the surface sites were determined via OSL. The dating results indicate human foragers occupied the eastern part of UBD (Region IV) at ∼8.5–8.4 ka (WL1) and ∼7.3 ka (WL36). In addition, the stratigraphy of WL1-B and WL36 have consistent regional characteristics, with the upper layer dominated by sandy loess layers and the lower layer dominated by sandy layers. Based on the positional relationship between the stone artifacts and the sandy loess layer, the residual sandy loess layers near the stone artifacts from the surface sites are speculated to be likely related to their original depositional context. As such, the age derived from the surface sites may serve as a reference for the approximate age of human occupation in other regions of UBD, between around 9.8–5.7 ka, which is generally consistent with the age of the two <em>in situ</em> buried sites. During the Early-Middle Holocene, the UBD was dominated by a relatively humid environment, which would have provided opportunities for human expansion and occupation in an area that is currently near-uninhabitable desert.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"368 ","pages":"Article 109573"},"PeriodicalIF":3.3,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144841385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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