Quaternary Science Advances最新文献

{"title":"Late Quaternary thrust faulting along the NW-trending Heya fault in southwestern Tian Shan, NW China","authors":"Xiaoyan Liu ,&nbsp;Sihua Yuan ,&nbsp;Li Zhang ,&nbsp;Kezhi Zang ,&nbsp;Jinshuo Zhang ,&nbsp;Chuanyong Wu","doi":"10.1016/j.qsa.2025.100303","DOIUrl":"10.1016/j.qsa.2025.100303","url":null,"abstract":"<div><div>Along both the northern and southern flanks of the Tian Shan orogenic belt, a series of foreland thrust systems have been developed to accommodate N – S crustal shortening. The strikes of these foreland thrust systems are roughly parallel to the mountain range and have usually been viewed as a result of outward expansion of the Tian Shan orogenic belt. However, the NW-striking Heya fault (HYF) in the southern Tian Shan piedmont has been identified, but at present, its late Quaternary kinematics, deformation mechanism and role in regional tectonic deformation are still unclear. In this study, based on interpretations of detailed high-resolution remote sensing images, field investigations, surveys of displaced terraces with an unmanned drone, dating of late Quaternary sediments via optically stimulated luminescence (OSL) and trench excavation, we quantified the structural geometry and determined the ∼0.85 mm/yr crustal shortening rate of the HYF. A survey of the displaced geomorphic surfaces implies that the HYF obeys a characteristic slip model. We suggest that the low-angle thrust HYF is a contractional horsetail structure located near the easternmost end of the Maidan fault and accommodates its left-lateral strike-slip motion.</div></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"20 ","pages":"Article 100303"},"PeriodicalIF":2.2,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145221636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microfacies analysis and varve-based chronology reveal a variable 14C reservoir effect in Lake Shira, northern Inner Asia, over the past 2500 years","authors":"Christian Leipe ,&nbsp;David Handfried ,&nbsp;Tengwen Long ,&nbsp;Ingo Heinrich ,&nbsp;Philipp Hoelzmann ,&nbsp;Jens Mingram ,&nbsp;Rik Tjallingii ,&nbsp;Johannes C. Vrijmoed ,&nbsp;Mayke Wagner ,&nbsp;Pavel E. Tarasov","doi":"10.1016/j.qsa.2025.100299","DOIUrl":"10.1016/j.qsa.2025.100299","url":null,"abstract":"<div><div>Here, we present the first fully varve-based chronology for the deposits of the deep-water Lake Shira (Chulym-Yenisei Basin, South Siberia), derived from a new sediment core. The very well-preserved varves show typical properties of the clastic-biogenic and endogenic types that can be subdivided into four sublayers representing winter–early spring, late spring, early summer and late summer–autumn. The analysed sediment section of 147 cm length comprises 2491 varve years with a total counting error of 1.6 % (i.e. ±40 years), making the new sediment core from Lake Shira a unique high-resolution archive for multi-proxy studies of past climate/environmental change and human-environment interactions. Direct comparison of nine AMS radiocarbon (¹⁴C) dates based on sediment bulk organic fractions with an age-depth model based on varve counting made it possible to examine the ¹⁴C reservoir effect in the lake. The reservoir effect is a common issue when estimating the age of environmental proxies from lacustrine sedimentary archives in Inner Asia. Although a constant reservoir effect is commonly used to correct the ¹⁴C dates from a single core or lake basin, our results from Lake Shira demonstrate that it varies significantly over the last 2500 years, ranging from 240 ± 30 to 1045 ± 30 years. The spatiotemporal variability of the reservoir effect can considerably reduce the accuracy of age-depth models based solely on the bulk organic sediment fraction. Where varved sediment is unavailable, as is usually the case, lignin phenols, terrestrial plant remains and purified pollen concentrates should be considered as alternative dating materials.</div></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"19 ","pages":"Article 100299"},"PeriodicalIF":2.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144988474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mid-to late-Holocene fluvial and coastal evolution in the Aceh River delta, Sumatra: effects of sea-level change, sediment supply, wave climate, tectonics and tsunamis","authors":"Stoil Chapkanski ,&nbsp;Gilles Brocard ,&nbsp;Franck Lavigne ,&nbsp;Tomy Afrizal ,&nbsp;Ella Meilianda ,&nbsp;Nazli Ismail ,&nbsp;Jędrzej Majewski ,&nbsp;Patrick Daly ,&nbsp;Benjamin Horton ,&nbsp;Adam Switzer ,&nbsp;Annika Steuer ,&nbsp;Bernhard Siemon ,&nbsp;Darusman Darusman ,&nbsp;Clément Virmoux ,&nbsp;Jean-Philippe Goiran","doi":"10.1016/j.qsa.2025.100290","DOIUrl":"10.1016/j.qsa.2025.100290","url":null,"abstract":"<div><div>The Aceh River delta, northern Sumatra, is a subject of interest since the coastline was struck, more than any other, by the 2004 Indian Ocean Tsunami, the largest recorded in human history. Thereafter, significant scientific efforts focused on short-term dynamics to address the environmental effects of the tsunami, but the long-term evolution of the delta in this specific context of volcanic eruptions, megathrust earthquakes and tsunami landing, however, remains to be understood.</div><div>This study investigates the subaerial delta, based on shallow sediment borehole stratigraphies and C¹⁴ ages, in order to provide a partial reconstruction of the western and eastern fluvial and coastal evolution over the past 7 ky. It also benefits from comprehensive resistivity maps produced during recent helicopter-borne electromagnetic (HEM) surveys, and from earlier geomorphological mapping.</div><div>By prograding, the delta expanded seaward, exposure to swell increased, and a large strandplain accreted along the eastern delta front from 4 to 1 ky BCE. The delta thus evolved asymmetrically, with higher, tightly-stacked beach ridges in the east, which accreted at ∼6 km²/ky. Meanwhile, the Aceh River remained stable, along the western side of the delta, burying the western strandplain under its floodplain. After 0.5 ky BCE, delta progradation increased to ∼14 km²/ky, generating low-lying and wider spaced beach ridges to the east. A series of river avulsions between 0.2 ky BCE and 1.6 ky CE shifted the river course from the west to the center of the delta. An asymmetric cuspate promontory grew at 23 km²/ky after 0.5 ky in front of the current mouth of the river, projecting 1 km offshore of the current coastline, before undergoing erosion in the past few centuries.</div><div>Here, we discuss which combination of global and local factors, including sea level change, sediment supply, wave climate, tectonics, land use and tsunamis may explain the most salient processes during the growth of the Aceh River delta. Beyond its local interest, this study provides clues for a wider understanding of the complexity of subaerial delta development.</div></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"19 ","pages":"Article 100290"},"PeriodicalIF":2.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144921163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Formation of an epigenetic gorge following a giant landslide damming in Kyirong River of the central Himalayas","authors":"Yifan Shu ,&nbsp;Kaiheng Hu ,&nbsp;Qiyuan Zhang ,&nbsp;Shuang Liu ,&nbsp;Bo Zhao ,&nbsp;Pu Li ,&nbsp;Xiaopeng Zhang ,&nbsp;Hao Li","doi":"10.1016/j.qsa.2025.100298","DOIUrl":"10.1016/j.qsa.2025.100298","url":null,"abstract":"<div><div>In tectonically active mountainous regions, large-scale landslide damming events have profound impacts on long-term fluvial landforms, such as river diversion and formation of epigenetic gorges. Here, we investigate morphometric and sedimentological evidence of an ancient large-scale landslide in the Kyirong River basin located in the central Himalayas. The ancient Kyirong landslide completely blocked the river, causing overtopping at the lowermost part of the dam crest. The river then progressively incised through the landslide deposits and the underlying bedrock, carving out the ∼300-m-deep Kyephu Gorge within the original bedrock valley walls. Unlike the conventional formation of epigenetic gorges, the new river channel of the Kyirong River is located closer to the landslide wall compared to the original channel.This unique formation model is the result of the combined effects of the landslide movement process and the distinctive topography. Through remote sensing image interpretation, field surveys, sediment layer analysis, and geomorphological parameter calculations, this study reconstructs the motion process of the Kyirong landslide and its subsequent effects on the river system. The Kyirong landslide is identified as a late Quaternary event, corresponding to a river incision rate of over 14.2 mm/year. The landslide event has caused significant changes in local geomorphological features, reshaping the evolution of the river. This study provides a specific case, demonstrating that in tectonically active regions, landslide events play a direct role in controlling the evolution of river landforms.</div></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"19 ","pages":"Article 100298"},"PeriodicalIF":2.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145004061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Geomorphological responses to climate change in the Ganges-Brahmaputra-Meghna Delta: A multi-decadal remote sensing analysis","authors":"Sumaiya Aktar ,&nbsp;Mohidar Hossain ,&nbsp;Md. Mahmudul Hasan Rakib ,&nbsp;Shacin Chandra Saha ,&nbsp;Mehedi Hasan Ovi ,&nbsp;Dipraj Roy ,&nbsp;Arabe Khan ,&nbsp;Irteja Hasan ,&nbsp;Md Abdullah Salman ,&nbsp;Rahat Khan ,&nbsp;Muhammad Risalat Rafiq ,&nbsp;Dhiman Kumer Roy","doi":"10.1016/j.qsa.2025.100296","DOIUrl":"10.1016/j.qsa.2025.100296","url":null,"abstract":"<div><div>The Ganges-Brahmaputra-Meghna (GBM) Delta represents a major riverine system with limited data availability. This study investigates the morphodynamic behavior of the delta and estuary from 1990 to 2021 by analyzing time-series satellite imagery and comprehensive literature to identify key events and driving factors. The aims of this study are to better understand the geomorphological processes that influence the GBM delta system, identify the physical factors contributing to its formation and, predict future challenges for sustainable development in delta areas. Climatological data (temperature and rainfall) from NASA revealed a rising trend in average annual temperature and fluctuating rainfall patterns across five sites in GBM river system: Sirajganj, Tangail, Rajbari, Chandpur, and Bhola. Cyclone track data were analyzed, and GIS mapping of cyclone intensity and trajectories in the GBM delta was conducted to predict future sustainability challenges. Multi-temporal Landsat imagery from USGS Earth Explorer was analyzed using ArcGIS 10.8 to assess riverbank erosion and accretion. Erosion, accretion, and stable land areas varied across five sites of GBM delta from 1990 to 2020. Sirajgonj and Tangail show major land gains until 2010, followed by severe erosion in 2010–2020, with net losses of −404.33 km² and -497.69 km², respectively. Rajbari gained (+234.66 km²) land in 2000–2010 but saw a reversal with a −143.75 km² loss in the next decade. Chandpur had consistent gains until 2010 but a slight loss (−11.8 km²) afterward. Bhola remained the most stable, maintaining continuous net gains, peaking at +76.83 km² in 2010–2020. NDVI, NDWI, and NDSI data reveals a river-wise gradient. NDVI peaks along the Brahmaputra/Jamuna and Ganges/Padma floodplains and declines toward the Meghna estuary. NDWI delineates persistent surface water, while NDSI shows seaward-intensifying salinity toward the Meghna, indicating elevated coastal vulnerability.These findings serve as a guideline to clarify cause-and-effect relationships in global climate change and anticipate future challenges to the sustainable development of the delta.</div></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"19 ","pages":"Article 100296"},"PeriodicalIF":2.2,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144895007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Subsistence strategies in the early upper Paleolithic of central Iberia: Evidence from Abrigo de la Malia","authors":"Edgar Téllez ,&nbsp;Antonio Rodríguez-Hidalgo ,&nbsp;Manuel Rodríguez-Almagro ,&nbsp;Carmen Núñez-Lahuerta ,&nbsp;Andion Arteaga-Brieba ,&nbsp;Adrián Pablos ,&nbsp;Nohemi Sala","doi":"10.1016/j.qsa.2025.100297","DOIUrl":"10.1016/j.qsa.2025.100297","url":null,"abstract":"<div><div>Knowledge of early Anatomically Modern Humans settlements in the interior of the Iberian Peninsula remains limited. Traditional perspectives have long assumed that this region, known as the Iberian Plateau, was abandoned after the disappearance of Neanderthals and remained largely uninhabited until the end of the Last Glacial. In contrast, coastal areas have so far been the primary focus of archeological studies, as they are where the majority of known sites are located and where the most research has been conducted on subsistence practices. The recent discovery of the Abrigo de la Malia rock shelter site (Tamajón, Guadalajara) has challenged this paradigm, providing evidence of occupation in Central Iberia during the Aurignacian and Gravettian periods (36,200–26,260 cal BP). This work is focused on the zooarcheological and taphonomic analysis of the Paleolithic faunal assemblage from the Malia rock shelter, aiming to reconstruct the subsistence strategies of the earliest Anatomically Modern Humans inhabiting central Iberia during the early Upper Paleolithic. The results indicate anthropogenic activities focused on the processing of medium- and large-sized ungulates, with carnivores either playing a marginal role. The combined data suggest that the Malia rock shelter was used for short but recurrent occupations, likely by small groups engaged in hunting expeditions. This study highlights the adaptability of these populations who inhabited this region during MIS-3 as they faced severe climatic conditions while exploiting the available environmental resources.</div></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"19 ","pages":"Article 100297"},"PeriodicalIF":2.2,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144890314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biochronological and paleobiogeographic implications of the Dama-like deer sample from the latest Early Pleistocene of Cal Guardiola (NE Iberia)","authors":"Elpiniki-Maria Parparousi ,&nbsp;Leonardo Sorbelli ,&nbsp;Marco Cherin ,&nbsp;Marzia Breda ,&nbsp;Alessandro Blasetti ,&nbsp;Marco Peter Ferretti ,&nbsp;Darío Fidalgo ,&nbsp;Saverio Bartolini-Lucenti ,&nbsp;Pierre-Élie Moullé ,&nbsp;Bienvenido Martínez-Navarro ,&nbsp;Lorenzo Rook ,&nbsp;Joan Madurell-Malapeira","doi":"10.1016/j.qsa.2025.100294","DOIUrl":"10.1016/j.qsa.2025.100294","url":null,"abstract":"<div><div>Different species of <em>Dama</em>-like deer usually included in the genus <em>Pseudodama</em>, occurred in the European Plio-Pleistocene. In this paper, the medium-sized cervid sample from the Cal Guardiola Section (NE Iberian Peninsula) is described. It exhibits notable similarities with other records referred to <em>Pseudodama vallonnetensis</em> from various late Early Pleistocene European sites, thus confirming the abundance of this taxon in the faunal associations of this period. Here, we review the spatial and temporal distribution of <em>P</em>. <em>vallonnetensis</em> in Europe and, in a broader framework, also the succession of <em>Dama</em>-like deer species during the entire Pleistocene, analyzing variations in body size and possible relationships between these and palaeoenvironmental conditions.</div></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"19 ","pages":"Article 100294"},"PeriodicalIF":2.2,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144903129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Classic Maya landscape adaptation, agricultural productivity, and political dynamics in the upper Belize River Valley","authors":"John P. Walden ,&nbsp;Claire E. Ebert ,&nbsp;Scott L. Fedick ,&nbsp;Jaime J. Awe ,&nbsp;Brett Meyer ,&nbsp;Leszek Pawlowicz ,&nbsp;Tia B. Watkins ,&nbsp;Samuel C.M. Hemsley ,&nbsp;Olivia P. Ellis ,&nbsp;Igor Chechushkov ,&nbsp;Patrick Mullins ,&nbsp;Frank K. Tzib ,&nbsp;Michael Biggie ,&nbsp;Shane Montgomery ,&nbsp;George J. Micheletti ,&nbsp;Rafael A. Guerra ,&nbsp;Julie A. Hoggarth","doi":"10.1016/j.qsa.2025.100295","DOIUrl":"10.1016/j.qsa.2025.100295","url":null,"abstract":"<div><div>The upper Belize River Valley of west-central Belize is a complex ecotone where multiple environmental zones converge around the Mopan, Macal, and Belize Rivers. The valley's natural fecundity attracted Preclassic Maya (1200/1100 BCE–CE 300) farmers to the region, fostering population growth and the formation of several Classic (CE 300–900) polities. By the Late Classic (CE 600–900) the valley represented a dense conurbation of settlement focused around four major centers, each of these polities contained numerous intermediate elite headed districts of commoners. Evidence for political disintegration and demographic decline appeared around CE 750, coinciding with increasing drought, culminating in the complete collapse of these polities and a regional demographic crash around CE 1000. In this study, we combine environmental data and agricultural modeling to assess polity- and district-level agrarian productivity in the polities of Baking Pot, Cahal Pech, Lower Dover, and Yaxox. Our agricultural modeling indicates these polities could have generated significant agricultural surpluses under stable climatic conditions and low population density. Increasingly variable climate during the ninth to the eleventh century CE, however, impacted traditional rain fed milpa cultivation on the upland hillslopes in the south of the region, prompting out migration. In contrast, households situated on riverine alluvium appeared to thrive during this period. The case study highlights the importance of understanding environmental factors and agricultural strategies when reconstructing past political dynamics.</div></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"20 ","pages":"Article 100295"},"PeriodicalIF":2.2,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145098162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Paleoseismological evidence of a century of coastal deformation in central Chile: lasting emergence and ongoing submergence","authors":"Bladimir Saldaña ,&nbsp;Marco Cisternas ,&nbsp;Matías Carvajal ,&nbsp;Daniel Melnick ,&nbsp;Joaquín Cortés-Aranda ,&nbsp;Jean Pierre Francois ,&nbsp;Alexandra Carreño ,&nbsp;Mario Guerra","doi":"10.1016/j.qsa.2025.100291","DOIUrl":"10.1016/j.qsa.2025.100291","url":null,"abstract":"<div><div>Understanding vertical deformation associated with cycles of great megathrust earthquakes is crucial for assessing coastal hazards and advancing in our knowledge of tectonic processes in subduction zones. However, this requires long datasets that extend beyond the era of space geodesy. Here, we use paleoseismological evidence, including lithological and paleoecological data, from a former coastal lagoon in central Chile to reconstruct land-level changes during the 20th century, spanning two great (M ≥ 8) megathrust earthquakes in 1906 and 1985. Diatom and seed assemblages across an abrupt lithological change from mud to peat recorded a sudden relative sea level (RSL) fall in the early 20th century. This environmental shift correlates with the disappearance of the lagoon between 1904 and 1914 as documented in historical maps, revealing an emergence event most likely associated with ∼0.7 m of coseismic uplift in 1906. For the following eight decades, diatoms suggest relatively stable RSL conditions, implying that the coast remained emerged. This is partially supported by the record of a nearby tide gauge showing relatively stable RSL between 1944 and the mid-1980s. Around the time of the 1985 earthquake, both diatoms and tide gauge records suggest the onset of a gradual RSL rise. The inferred long-term trend aligns with modern GPS measurements showing persistent coastal subsidence since 1997 until today. This multiproxy RSL history reveals a more complex vertical deformation pattern than previosuly assumed in the central Chile subduction zone, with subsidence starting eight decades after sustained post-1906 uplift. Our findings provide key insights into the vertical deformation cycles of great subduction zone earthquakes in central Chile and elsewhere.</div></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"19 ","pages":"Article 100291"},"PeriodicalIF":2.2,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144865850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Converging evidence constrains late pleistocene bering land bridge history","authors":"Ciara Wanket ,&nbsp;Samuel Kodama ,&nbsp;Jonas Oppenheimer ,&nbsp;Scott Cocker ,&nbsp;Emma Steigerwald ,&nbsp;Duane Froese ,&nbsp;Beth Shapiro ,&nbsp;Tamara Pico ,&nbsp;Jesse Farmer","doi":"10.1016/j.qsa.2025.100292","DOIUrl":"10.1016/j.qsa.2025.100292","url":null,"abstract":"<div><div>The Bering Land Bridge was an important biotic corridor and climatic modifier during the Pleistocene (2.58 million to 11,700 thousand years ago [ka]). Understanding when the land bridge was most recently exposed reveals insights into past climate, the modern distribution of plants and animals, and potential human migration into the Americas. While the timing of the most recent flooding of the land bridge has been constrained to during the last deglaciation, the timing of its most recent exposure before the Last Glacial Maximum (LGM, 26.5–19 ka) is less clear. Here, we combine data from three disciplines— paleoceanography, sea level reconstruction, and terrestrial paleogenomics—to constrain the most recent exposure of the Bering Land Bridge to shortly before the LGM, 30–40 kyr later than previously suggested by comparisons of eustatic sea level reconstructions with the modern Bering Strait Sill depth. These results have implications for understanding the timing and nature of human arrival in the Americas and highlight the importance of interdisciplinary collaboration across paleoclimatology and paleoecology for refining Pleistocene environmental history.</div></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"19 ","pages":"Article 100292"},"PeriodicalIF":2.2,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144831003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}