Anne L. Leal , Robert F. Anderson , Alexandra Bausch , Martin Q. Fleisher , Sunil Kumar Singh , Yong Lao , Venkatesh Chinni , Roger Francois
{"title":"231Pa/230Th ratios in the Atlantic and Indian Oceans and their implications for the application of the ratios as an ocean circulation proxy","authors":"Anne L. Leal , Robert F. Anderson , Alexandra Bausch , Martin Q. Fleisher , Sunil Kumar Singh , Yong Lao , Venkatesh Chinni , Roger Francois","doi":"10.1016/j.quascirev.2025.109448","DOIUrl":"10.1016/j.quascirev.2025.109448","url":null,"abstract":"<div><div>Unsupported <sup>231</sup>Pa/<sup>230</sup>Th ratios have been used widely as a paleoproxy for ocean circulation and as a paleoproductivity proxy; however, some of the inherent assumptions for these proxies have not been thoroughly tested, which would impact how the ratio is interpreted in different regions. Both applications of the ratio influence interpretations of past climate changes, so it is important to determine the extent to which each process impacts the sedimentary <sup>231</sup>Pa/<sup>230</sup>Th values. Here, we compare <sup>231</sup>Pa/<sup>230</sup>Th ratios between the Atlantic, Indian, and Pacific Oceans, and within the Atlantic Ocean, as a test of whether or not this ratio serves as a reliable proxy for water mass ventilation age, which is closely related to ocean circulation.</div><div>In this study, we present new <sup>231</sup>Pa and <sup>230</sup>Th measurements from Indian and Atlantic Ocean sediments and from Indian Ocean seawater samples, alongside previously published Atlantic Ocean water column and sedimentary <sup>231</sup>Pa/<sup>230</sup>Th ratios. The observed water column dissolved <sup>231</sup>Pa/<sup>230</sup>Th profiles do not show the expected increase in ratio values with water mass age, which disagrees with the conceptual model for the use of <sup>231</sup>Pa/<sup>230</sup>Th as a paleocirculation proxy. Dissolved <sup>231</sup>Pa/<sup>230</sup>Th varies between 0.35 and 0.75 within the depth range of NADW, and there is no apparent correlation with water mass age. The observed <sup>231</sup>Pa/<sup>230</sup>Th values and profiles are strikingly similar between the western North Atlantic, Western Indian, and North Pacific Oceans, even though these basins have significantly different water mass histories and deep water mass ages.</div><div>The water column <sup>231</sup>Pa/<sup>230</sup>Th values then determine the ratio value of the underlying sediments. So, we then compare <sup>231</sup>Pa/<sup>230</sup>Th values from Holocene sediments between the ocean basins to determine if the observations agree with our understanding of modern ocean circulation. Atlantic and Indian Ocean sediments are indistinguishable from each other with respect to their <sup>231</sup>Pa/<sup>230</sup>Th ratios. Taken together, these results indicate that factors other than ventilation age must significantly impact <sup>231</sup>Pa/<sup>230</sup>Th ratios, and the evidence suggests that fractionation and scavenging intensity may strongly impact particulate and sedimentary <sup>231</sup>Pa/<sup>230</sup>Th.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"363 ","pages":"Article 109448"},"PeriodicalIF":3.2,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144213388","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}
Jordan N. Herbert , Gordon R.M. Bromley , Meredith A. Kelly , Alice M. Doughty , Daniel Ruiz-Carrascal , Sergio A. Restrepo-Moreno , Santiago Noriega Londoño , Peter Galloway , Alan J. Hidy
{"title":"Paleoclimatic implications of glacial fluctuations in the Sierra Nevada del Cocuy, northern Andes, Colombia, during the Lateglacial and Holocene","authors":"Jordan N. Herbert , Gordon R.M. Bromley , Meredith A. Kelly , Alice M. Doughty , Daniel Ruiz-Carrascal , Sergio A. Restrepo-Moreno , Santiago Noriega Londoño , Peter Galloway , Alan J. Hidy","doi":"10.1016/j.quascirev.2025.109458","DOIUrl":"10.1016/j.quascirev.2025.109458","url":null,"abstract":"<div><div>The reconstruction of former mountain glaciers from geomorphic mapping and cosmogenic-nuclide surface-exposure dating provides a unique opportunity to infer patterns of past terrestrial climate variability. Tropical mountain glaciers are particularly valuable as there are comparatively few terrestrial climate proxies at equatorial latitudes relative to higher latitudes. As the single largest climate zone on Earth, the tropics play an outsized role in mediating global climate via the ocean-atmosphere transfer of latent heat and water vapor. Nonetheless, there remains a persistent gap in our understanding of how the tropics influenced – or were influenced by – the high-magnitude climate shifts of the Late Pleistocene, and whether this high-energy region simply responded to extratropical forcing or was itself a driver of global climatic change. To help address this knowledge gap, we analyzed geologic evidence for past glacial fluctuations in three adjacent valleys in the Sierra Nevada del Cocuy, the highest subrange of the Eastern Cordillera in the Colombian Andes, to provide a terrestrial record of atmospheric temperature during the latter part of Termination 1. Coupled with geomorphic mapping and paleo-snowline reconstructions, our beryllium-10 glacial chronology indicates that glaciers in the humid inner tropics underwent pronounced growth and gradual decay during the Antarctic Cold Reversal (14.5–12.8 ka) and Younger Dryas (12.8–11.7 ka) periods, respectively, following a trend that, according to directly dated moraine records from throughout both polar hemispheres, appears to have been global. While the specific mechanism(s) behind this large-scale behavior remains to be corroborated, we revisit the hypothesis that ocean-atmosphere heat transfer and water vapor flux are key drivers of abrupt Lateglacial temperature fluctuations. Subsequent to the Lateglacial, deglaciation of the Sierra Nevada del Cocuy accelerated during the Early Holocene, a pattern also observed in other tropical glacier records. More recently, the magnitude of snowline rise and glacier retreat over the last two centuries supports the view that modern tropospheric warming is anomalously strong at least relative to the last ∼16,000 years.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"363 ","pages":"Article 109458"},"PeriodicalIF":3.2,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144213389","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}
Smith Leknettip , Sakonvan Chawchai , Alexander Fülling , Frank Preusser
{"title":"Pleistocene sea-level and environmental changes during glacial-interglacial cycles recorded in beach ridges of the Thai-Malay Peninsula","authors":"Smith Leknettip , Sakonvan Chawchai , Alexander Fülling , Frank Preusser","doi":"10.1016/j.quascirev.2025.109464","DOIUrl":"10.1016/j.quascirev.2025.109464","url":null,"abstract":"<div><div>Beach ridges are relict coastal landforms with subsurface deposits that can be used to reconstruct past sea-level and environmental changes. Nonetheless, beach ridges, especially those formed during the Pleistocene, can be easily modified by post-depositional processes triggered by various climatic events during glacial-interglacial cycles. Therefore, detailed investigations are necessary to utilize beach ridges as records of past sea level and environmental conditions. This study employs a multidisciplinary approach, including ground-penetrating radar (GPR) surveys, sedimentological analysis, and luminescence dating, to determine the evolution of beach ridges in the Thai-Malay Peninsula. Based on GPR and sedimentological data, evidence of beach progradation is identified, indicating that the deposition of coarse-grained beach ridges occurred on the beach face where sediments accumulated in a high-energy depositional environment. These beach face deposits are subsequently covered by thick layers of aeolian deposits that were likely reworked at the surface of the beach ridges. Luminescence dating reveals that the deposition of the oldest beach ridges occurred prior to 190 ka, during the interglacial period of the Marine Isotope Stage (MIS) 7. Subsequently, the beach ridges were modified by aeolian reworking episodically until the end of the Pleistocene during times when the sea level was low, resulting in a vertical build-up. The presence of aeolian deposits supports the concept of climate aridification and reduced vegetation cover in Sundaland during that time.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"364 ","pages":"Article 109464"},"PeriodicalIF":3.2,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144223332","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}
Brenda Hall , Thomas Lowell , Gordon Bromley , Aaron Putnam , Katherine Allen
{"title":"Rapid deglaciation of eastern Maine, northeastern North America, during Heinrich Stadial 1","authors":"Brenda Hall , Thomas Lowell , Gordon Bromley , Aaron Putnam , Katherine Allen","doi":"10.1016/j.quascirev.2025.109444","DOIUrl":"10.1016/j.quascirev.2025.109444","url":null,"abstract":"<div><div>Despite decades of research, we do not have a complete understanding of what causes ice-age terminations. Apparently contradictory climate records from the North Atlantic region during Heinrich Stadial 1 (HS1) have led to the concept of extreme seasonality, with warming summers and bitterly cold winters. Here, we assess the hypothesis of warming summer temperatures during HS1 from a record of ice-sheet behavior in eastern Maine, northeastern North America. Forty-five new <sup>10</sup>Be cosmogenic exposure ages, along with previously published <sup>10</sup>Be ages and numerous onshore and offshore radiocarbon dates, present an internally consistent picture of rapid ice retreat during HS1 from at least ∼17-15 ka. Exposure ages show deglaciation along a 160 km north-south transect in eastern Maine was centered on 15.3 ± 0.5 ka and occurred within the error of the dating method. Although we cannot rule out any marine influence (at least at the start of deglaciation), we attribute the primary underlying cause of this recession to warming summer temperatures, particularly once the ice margin became terrestrial. These results are consistent with the concept of strong seasonality during North Atlantic stadial events, such as HS1, that may have its origin in summertime meltwater from retreating ice sheets leading to the development of winter sea ice and concurrent frigid winter temperatures.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"363 ","pages":"Article 109444"},"PeriodicalIF":3.2,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144204222","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}
Johanna Menges , David Sebag , Judicael Lebamba , Chris Kiahtipes , Hans-Peter Wotzka , Johannes Preuß , Ferdinand Bokomba Bwamangele , Roger Kidebua Lutonadio , Melanie Guardiola , Thierry Adatte , Yannick Stroobandt , Steven Bouillon , Yannick Garcin , Enno Schefuß
{"title":"Environmental and climatic evolution of a river-proximal peatland in the Cuvette Centrale, Congo Basin","authors":"Johanna Menges , David Sebag , Judicael Lebamba , Chris Kiahtipes , Hans-Peter Wotzka , Johannes Preuß , Ferdinand Bokomba Bwamangele , Roger Kidebua Lutonadio , Melanie Guardiola , Thierry Adatte , Yannick Stroobandt , Steven Bouillon , Yannick Garcin , Enno Schefuß","doi":"10.1016/j.quascirev.2025.109445","DOIUrl":"10.1016/j.quascirev.2025.109445","url":null,"abstract":"<div><div>Tropical peatlands play a crucial role in the global carbon cycle, yet their formation and response to environmental changes remain poorly understood. The Congo Basin, containing the World's largest tropical peatlands, holds about 30 billion tons of carbon in the Cuvette Centrale. Initial studies revealed diverse peat deposits in different geomorphic and hydrologic settings, with extensive peat domes in interfluvial basins and river-proximal peatlands following hydrographic networks. Here, we present a comprehensive analysis of a peat core from a peatland in close vicinity of the Momboyo River within the Cuvette Centrale. Using bulk organic carbon and nitrogen analyses, Rock-Eval® thermal analysis, and plant wax carbon and hydrogen isotope compositions, we reconstructed this peatland's evolution and associated past hydroclimatic conditions.</div><div>Our findings reveal distinct phases of peat accumulation, transitioning from an organic carbon-rich river floodplain to a forested marshland, and finally to a closed-canopy swamp forest. Rock-Eval® parameters indicate <em>in-situ</em> peat accumulation in the marshland and swamp forest phases. Peat initiation occurred around 10.6 calibrated kiloanni before present (cal ka BP) under increasing precipitation and around 8.7 cal ka BP the terrestrialization of the peatland coincided with the establishment of a closed canopy forest. Notably, we also identify a trend to drier climatic conditions from 5 cal ka BP onwards and the previously described “Ghost Interval” – an interval of heavily decomposed peat – in this core, indicating this period left its mark across peatlands in different parts of the Cuvette Centrale. Last, a short-lived vegetation change occurred between 1.7 and 1.5 cal ka BP that did not impact peat formation.</div><div>Regarding the climatic evolution, the plant wax hydrogen isotope (δD<sub><em>n</em>-C29</sub>) record corroborates regional climatic patterns observed in previous studies, emphasizing the close linkage between precipitation regimes and peatland development. The strong agreement between our findings and a δD<sub><em>n</em>-C29</sub> record from the offshore Congo fan further supports the regional nature of climatic evolution.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"363 ","pages":"Article 109445"},"PeriodicalIF":3.2,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144196081","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}
{"title":"Exploring the impact of Cordilleran Ice Sheet size on marine-terminating ice stream grounding line dynamics","authors":"T. Pico , S. Kodama , C. Vigilia , A. Robel","doi":"10.1016/j.quascirev.2025.109427","DOIUrl":"10.1016/j.quascirev.2025.109427","url":null,"abstract":"<div><div>The growth and retreat of the Cordilleran Ice Sheet prior to the Last Glacial Maximum, during Marine Isotope Stage 3 (MIS 3; 57 ka to 29 ka), is elusive. Yet ice sheet size impacts underlying topography through glacial isostatic adjustment, which can modulate ice stream grounding zone dynamics. In this study, we explore bounds on MIS 3 Cordilleran Ice Sheet volume, and predict how topographic change due to glacial isostatic adjustment would shift the zones where grounding lines can persist for key Cordilleran ice streams. We identified three key ice streams (Yakutat Sea Valley, Skeena Valley, Juan de Fuca Strait), two of which are located near sites with sediment cores recording active ice dynamics across this time interval. We used the reconstructed bedrock topography for these ice streams to assess how glacial isostatic adjustment would change the potential zones of grounding line persistence, based on plausible end-member Cordilleran Ice Sheet histories. We found that glacial isostatic adjustment shifts the locations of persistent grounding line zones differently, based on the location of the Cordilleran ice stream with respect to the predicted spatial pattern of topographic change. Depending on the size of the Cordilleran Ice Sheet in the period leading into the Last Glacial Maximum, glacial isostatic adjustment could have acted to either stabilize or destabilize marine-terminating grounding lines across the Pacific shelf. Future work refining the Cordilleran Ice Sheet history across the glacial build-up phase will disentangle the role of solid Earth feedbacks on grounding line dynamics for individual ice streams, and provide insight into the mechanisms causing abrupt climate events, ranging from rapid ice discharge to megafloods, documented in the North Pacific across the last ice age.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"363 ","pages":"Article 109427"},"PeriodicalIF":3.2,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144196082","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}
Zinan Lin , Dan Zhu , Jiayi Zhou , Yuhan Gao , Zhen Wang , Eric Galbraith , Jiaoyang Ruan , Jiafu Zhang
{"title":"Decreasing sensitivity of human populations to temperature variability during 50–10 ka in China","authors":"Zinan Lin , Dan Zhu , Jiayi Zhou , Yuhan Gao , Zhen Wang , Eric Galbraith , Jiaoyang Ruan , Jiafu Zhang","doi":"10.1016/j.quascirev.2025.109459","DOIUrl":"10.1016/j.quascirev.2025.109459","url":null,"abstract":"<div><div>Understanding how ancient human population size responded to climate change is crucial for studying environmental impacts on human survival and migration. Summed probability distributions (SPD) of archaeological radiocarbon dates have been widely used as proxies for population levels, though previous research for China has mainly focused on the Holocene. The SPD method, however, has known limitations and was challenged by the recently developed Radiocarbon-dated event count (REC) method. Here we investigate the spatiotemporal relationship between climate change and population dynamics in China from 50 to 10 ka using both REC and SPD methods, alongside kernel density analysis for spatial patterns. We find significant correlations between climate variability and population changes through time, which are not detectable with the traditional SPD approach. Notably, we observe a decreasing sensitivity of population size to temperature over time, particularly during 40-35 ka, suggesting growing human resilience and adaptation to environmental stressors, possibly a result of technological advancements. The spatial analysis reveals positive effect of temperature and negative effect of precipitation seasonality on population density, while NPP does not emerge as a major predictor. Population distribution shifted from a northern concentration before the Last Glacial Maximum (LGM) to a more balanced distribution between northern and southern China during and after the LGM, suggesting that migration to regions with milder climate fluctuations may also contribute to the decreased temperature sensitivity through time. These findings highlight the ability of improved statistical methods with temporal and spatial perspectives to capture complex human-environment interactions, providing insights into human adaptability during prehistory.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"363 ","pages":"Article 109459"},"PeriodicalIF":3.2,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144195878","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}
Jian Zhang , Ming-Qiang Liang , Jun-Yun Li , Yao Wu , Yan-Xia Xue , Wen-Jun Sun , Xiang-Zhuo Liu , Jin-Ke Chen , Chao-Jun Chen , Ting-Yong Li
{"title":"Upstream moisture sources and circulation patterns controls Asian monsoon hydroclimate over the past 20,000 years","authors":"Jian Zhang , Ming-Qiang Liang , Jun-Yun Li , Yao Wu , Yan-Xia Xue , Wen-Jun Sun , Xiang-Zhuo Liu , Jin-Ke Chen , Chao-Jun Chen , Ting-Yong Li","doi":"10.1016/j.quascirev.2025.109438","DOIUrl":"10.1016/j.quascirev.2025.109438","url":null,"abstract":"<div><div>Speleothem oxygen isotope records (δ<sup>18</sup>O) from caves in the Asian monsoon region have been widely utilized to reconstruct paleo-monsoon variability. However, interpreting these records remains challenging due to conflicting hypotheses about their relationship with Asian Summer Monsoon (ASM) strength and regional rainfall patterns. In this study, we analyzed 15 cave stalagmite δ<sup>18</sup>O records collected across East and South Asia, covering the last 20,000 years. Our analysis focuses on key climatic events, including Heinrich Stadial 1 (HS1), the Bølling-Allerød warm period (BA), and the Younger Dryas (YD), to explore the driving force of Asian summer monsoons from both high-latitude North Atlantic climate and lower-latitudes atmospheric circulation patterns. The results revealed that speleothem δ<sup>18</sup>O variations were predominantly influenced by shifts in upstream moisture sources, particularly from low-latitude regions in the Indian and Pacific Oceans, as evidenced by both observational data and model simulations. We demonstrated that δ<sup>18</sup>O records from Chinese caves reflect not only local rainfall dynamics but also broader influences from upstream moisture sources.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"363 ","pages":"Article 109438"},"PeriodicalIF":3.2,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144196066","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}
T. Rowan McLaughlin , Harry K. Robson , Rikke Maring , Adam Boethius , Eric Guiry , Daniel Groß , Satu Koivisto , Bente Philippsen , Nicky Milner , Geoff Bailey , Oliver E. Craig
{"title":"Marine exploitation and the arrival of farming: resolving the paradox of the Mesolithic-Neolithic transition in Denmark","authors":"T. Rowan McLaughlin , Harry K. Robson , Rikke Maring , Adam Boethius , Eric Guiry , Daniel Groß , Satu Koivisto , Bente Philippsen , Nicky Milner , Geoff Bailey , Oliver E. Craig","doi":"10.1016/j.quascirev.2025.109447","DOIUrl":"10.1016/j.quascirev.2025.109447","url":null,"abstract":"<div><div>The transition to farming in the coastal environments of southern Scandinavia remains a key conundrum in European prehistory. This region was heavily exploited by Late Mesolithic communities of the Ertebølle culture, complex hunter-fisher-gatherers who flourished for some 1500 years prior to the arrival of farming at around 4000 BCE marking the start of the Neolithic period. Extensive genetic and isotopic analyses of skeletal remains suggests that the arrival of farming is marked by a rapid demographic change and that incoming populations of ‘farmers’ had little reliance on marine resources. In contrast, frequent archaeological finds of shell middens and fishing gear in the Early Neolithic supports evidence for continuity in the use of marine resources across the transition.</div><div>To assess this apparent paradox, focusing on the Danish evidence, we explore the spatiotemporal trends in the density of some 1500 radiocarbon dates using new informatics tools and modelling strategies. We indeed find strong archaeological indicators of sustained and even intensified patterns of coastal exploitation across and beyond the transition; shell middens, fishing implements, and aquatic residues in ceramics continue well into the Neolithic. Using an agent-based demographic model, we demonstrate how small differences in fertility could rapidly dilute signals of coastal resource use in the context of a growing Neolithic population. More broadly, we suggest that complex palimpsests of archaeological remains and biological information from human remains can only usefully be interpreted through the lens of demography.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"363 ","pages":"Article 109447"},"PeriodicalIF":3.2,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144184603","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}
{"title":"Regional climatic dynamics and cultural divergence in glacial western Europe","authors":"Olivier Cartapanis , Edouard Bard , Suzanne A.G. Leroy , Manuel Chevalier , Damien Flas , Thibaut Devièse","doi":"10.1016/j.quascirev.2025.109429","DOIUrl":"10.1016/j.quascirev.2025.109429","url":null,"abstract":"<div><div>Western European climate during the Last Glacial period (50–20 ka BP) was shaped by complex interactions between oceanic and terrestrial conditions, modulated by both orbital and millennial-scale forcings. This study integrates 75 marine and terrestrial palaeoenvironmental records to reconstruct spatiotemporal climate variability across Europe and the Mediterranean region. Sea surface temperature (SST) records reveal a pronounced latitudinal gradient, with strong cooling at high latitudes and relative SST stability at mid-latitudes on multi-millennial timescales, which likely moderated western European climate. Pollen-based vegetation records, in contrast, show a steep longitudinal trend, with intensified environmental shifts southeast of the Alps, where oceanic moderation was limited. On millennial timescales, Dansgaard-Oeschger cycles and Heinrich stadials imprinted distinct signatures on SST and vegetation, especially near the Atlantic margin, linked to disruptions in the Atlantic Meridional Overturning Circulation. These findings highlight the differentiated sensitivity of oceanic and terrestrial conditions to climate drivers and the climatic role of geographic barriers such as the Alps. The resulting spatial heterogeneity likely influenced human cultural trajectories, with stable long-term conditions but strong Heinrich stadial near the Atlantic coinciding with the emergence of the Châtelperronian industry, while more pronounced climatic long-term trend in southeastern Europe paralleled the development of the Uluzzian complex. This integrated palaeoenvironmental framework provides critical context for interpreting Late Pleistocene human adaptation and innovation in Europe.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"363 ","pages":"Article 109429"},"PeriodicalIF":3.2,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144184602","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}