Quaternary Science Reviews最新文献

{"title":"The early history of the correlation of the terrestrial Eemian stage with the marine isotope stages","authors":"Jan Mangerud","doi":"10.1016/j.quascirev.2025.109484","DOIUrl":"10.1016/j.quascirev.2025.109484","url":null,"abstract":"<div><div>There is a general agreement on the correlation of the Eemian Stage with Marine Isotope Stage (MIS) 5e today, including that the boundaries are not strictly synchronous. However, in the 1970s, a correlation with the entire MIS 5 and even with MIS 9 was proposed. In this paper, I present the early discussion on this correlation.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"365 ","pages":"Article 109484"},"PeriodicalIF":3.2,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144314668","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":"Climatic aridification and its driving mechanism in the Three-River Source Region over the past millennium","authors":"Changrun Wu ,&nbsp;Xiangzhong Li ,&nbsp;Guangxin Liu ,&nbsp;Yuxin He ,&nbsp;Xin Guan ,&nbsp;Jiameng Liu ,&nbsp;Dongkun Liu","doi":"10.1016/j.quascirev.2025.109483","DOIUrl":"10.1016/j.quascirev.2025.109483","url":null,"abstract":"<div><div>As hydroclimatic changes in the Three-River Source Region affect the streamflow of Asia's major rivers, i.e., the Yangtze, Yellow, and Mekong Rivers, downstream regions and nations face escalating threats to agriculture, biodiversity, and water security. Analyzing hydroclimatic changes during the late Holocene, as a modern warming analog, could provide key insights for forecasting water system responses to rising global temperatures. A general drying trend spanning the Medieval Warm Period to the Little Ice Age has been observed in both Yellow River and Mekong River Sourced Regions. However, the Yangtze River Source Region, which nearly covers half the Three-River Source Region, shows no conclusive evidence of this pattern, highlighting the urgency of further studies to resolve this spatial inconsistency. Here, with the assistance of proxies from organic carbon and carbonate contents, we used stable carbon and oxygen isotopes, and grain size distribution from a sedimentary core in Saiyong Co, to reconstruct regional hydroclimatic changes of the Yangtze River Source Region over the past 1700 years. Our new records reveal a regional aridity trend over the past millennium in the Yangtze River Source Region, consistent with records from surrounding regions. Specifically, Saiyong Co's hydroclimatic history is characterized by three distinct phases: relatively wet conditions from AD 200 to AD 1100, relatively dry conditions from AD 1100 to AD 1850, and a shift towards significantly wet conditions since AD 1850. By comparing these records with well-established climatic and tropical symbolic records, we probe the mechanism driving regional hydroclimatic changes across millennial trend and centennial timescales. The millennial drying trend can be largely attributed to the gradual weakening of the Indian Summer Monsoon, while centennial-scale hydroclimatic variations over the past millennium aligns with ENSO events. Since AD 1850, intensified monsoon precipitation and rising temperatures suggest a transition towards wetter conditions in the Yangtze River Source Region, a shift that demands further monitoring and investigation. These findings establish a vital baseline for evaluating climate change impacts on the Yangtze River Source Region's long-term ecological sustainability.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"365 ","pages":"Article 109483"},"PeriodicalIF":3.2,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144307217","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":"Origin, characterisation and lithic management of the Chipana silcrete in the Pampa del Tamarugal basin, northern Chile","authors":"Katherine A. Herrera ,&nbsp;Nicolas Blanco","doi":"10.1016/j.quascirev.2025.109329","DOIUrl":"10.1016/j.quascirev.2025.109329","url":null,"abstract":"<div><div>Silicified rocks, or silicites, were a highly utilized resource by human groups that traversed the Atacama Desert around 13,000 cal yr BP. The questions of where and how these past groups obtained the raw materials are crucial for understanding the routes they followed and the mechanisms they used for acquiring and transforming the rock. An exemplary case to observe this and to characterize the type of source and rock exploited is “Chipana,” as it is both a source and an archaeological site. It is the largest and oldest known lithic provisioning point in the Pampa del Tamarugal. Using the interdisciplinary perspective of petroarchaeology, the source was characterized, and the lithic technology of the site was analyzed through a techno-economic approach. The main results show that Chipana likely corresponds to a large primary source of rock identified as white silcrete, specifically a heavily silicified limestone with opaline silica. This was identified through scanning electron microscopy analyses, which revealed chemical elements typical of limestone, and through the rock's structure (i.e., fibrous silica) observed via petrographic analysis. Four facies variations of the rock were observed at the source, and its formation is associated with diagenetic activity. It has a conchoidal fracture suitable for lithic knapping, which is why it was sought after by past human groups. The archaeological site corresponds to a lithic workshop focused on bifacial technology for producing large bifaces (13 cm in length). A secondary production is also observed of unifacial technology for knapping a variety of tools. Thus, Chipana provides new data for beginning to map out the lithic landscape of the Pampa and refines our understanding of how humans adapted to and utilized a hyper-arid environment with limited biomass by making use of available local resources such as rock. Additionally, it contributes to our knowledge of the oldest hunter-gatherers who populated the Atacama, as part of the human settlement of South America.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"364 ","pages":"Article 109329"},"PeriodicalIF":3.2,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144307583","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":"Origin and Late Holocene evolution of Lake Morské oko in a climatic and environmental context in the Eastern Carpathians","authors":"Martin Kadlec ,&nbsp;Amanda Mateo-Beneito ,&nbsp;Bernd Wagner ,&nbsp;Daniel Nývlt ,&nbsp;Imke Blacha ,&nbsp;Iuliana Vasiliev ,&nbsp;Eva Jamrichová ,&nbsp;Ilona Pál ,&nbsp;Viktor Goliáš ,&nbsp;Günther Kletetschka ,&nbsp;Mihály Braun ,&nbsp;Petr Kuneš","doi":"10.1016/j.quascirev.2025.109468","DOIUrl":"10.1016/j.quascirev.2025.109468","url":null,"abstract":"<div><div>Palaeoecological reconstructions in the Carpathians have primarily focused on the western and south-eastern mountain ranges, leaving a significant gap in our understanding of the central region along the Slovak-Ukrainian borders. This study investigated Lake Morské oko (Vihorlat Mts., Eastern Slovakia), whose origin has been debated. Using a multiproxy approach that combines hydro-acoustic surveys, sedimentological analysis, biomarker-based organic geochemistry, and pollen analysis, we confirm that the lake formed when a landslide from the eastern slopes of Motrogon and Jedlinka hills dammed the Okna valley shortly before 2780 cal a BP, coinciding with a documented wet period across Europe. Our record reveals a remarkably stable lake system that evolved from being dominated by terrestrial organic input to enhanced in-lake production after 1850 cal a BP. Our quantitative temperature and humidity reconstructions, the first in the region, capture major climatic episodes, including the end of the “2.8 ka event”, Roman Warm Period, and Mediaeval Climate Anomaly, during which there was likely increased lake water thermal stratification or reduced connectivity with the catchment. The Little Ice Age period is marked by temperature fluctuations corresponding to the Maunder and Dalton minima. Human influence becomes evident from 1100 and 700 cal a BP through increased Cerealia-type pollen and atmospheric lead deposition from regional mining activities. This study provides a continuous, well-dated Late Holocene palaeoenvironmental record spanning nearly 3000 years from this region of the Carpathians, bridging a crucial gap between western and eastern records while definitively confirming the lake's origin from a landslide.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"365 ","pages":"Article 109468"},"PeriodicalIF":3.2,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144307216","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":"Continuous investigation on the response of carbon isotopes of C3 plants to climate change in north China and application in paleoprecipitation reconstruction","authors":"Yutao Zhou ,&nbsp;Jiamao Han ,&nbsp;Guoan Wang ,&nbsp;Minrui Shi ,&nbsp;Wanlin Dong","doi":"10.1016/j.quascirev.2025.109487","DOIUrl":"10.1016/j.quascirev.2025.109487","url":null,"abstract":"<div><div>Interpreting the climate information recorded by carbon isotope composition (δ¹³C) in geological archives aids climatology research and climate prediction. However, this interpretation depends on accurately calibrating modern plant δ¹³C responses to climate change. We here present a long-term calibration conducted at a fixed location adjacent to a meteorological station. By eliminating the effects of geographical variables on C₃ plant δ¹³C, as well as errors arising from inaccuracies in meteorological data, this study yields reliable relationships between δ¹³C and climatic factors. This study demonstrates that precipitation is the predominant factor influencing C₃ plant δ¹³C, accounting for approximately 65 % of the variance in year-averaged δ¹³C for all C₃ plants. The coefficients between year-averaged δ¹³C and annual precipitation, growing season precipitation, and summer precipitation are −0.0039 ‰/mm, −0.0048 ‰/mm, and −0.0040 ‰/mm, respectively. Furthermore, we examined the response pattern of δ¹³C to environmental factors at the species level and observed significant variation in these patterns across different C₃ plant species. This indicates that isotope variation of a single species or a limited number of species cannot adequately reflect regional climate information due to microenvironmental influences. Consequently, only δ¹³C-climate factor conversion equations based on community-level data are appropriate for paleoclimate reconstruction. Finally, we used our δ¹³C-precipitation conversion equation to reconstruct the precipitation in the western Loess Plateau during the last glacial period. This study provides a robust constraint of the response pattern of C₃ plant δ¹³C to environmental factors and develops a refined isotope-precipitation conversion equation for rainfall reconstruction, promoting the application of δ¹³C in paleoclimate research.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"365 ","pages":"Article 109487"},"PeriodicalIF":3.2,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144297804","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":"Environmental evolution of the Andes east of the North Patagonian Icefield since ∼19.3 ka","authors":"Patricio I. Moreno ,&nbsp;William I. Henríquez ,&nbsp;Rodrigo P. Villa-Martínez","doi":"10.1016/j.quascirev.2025.109467","DOIUrl":"10.1016/j.quascirev.2025.109467","url":null,"abstract":"<div><div>We examine the environmental evolution of the central Patagonian Andes from ∼19.3 ka to the present using lake sediment cores from Valle Chacabuco (∼47°S). Our results reveal the dominance of cold-tolerant herbs and shrubs between ∼19.3 and 11 ka, within which we observe a shift to Poaceae-dominated assemblages and a <em>Pediastrum</em> rise at ∼17.8 ka succeeded by a gradual arboreal rise that started at ∼14.5 ka and culminated with the establishment of <em>Nothofagus</em>-dominated woodlands between ∼9.8–8.8 ka. We interpret modest warming at ∼17.8 ka and ∼12.7 ka and increases in precipitation at ∼17.8 ka and ∼14.5 ka, followed by major warming and a precipitation decline at ∼11 ka that accentuated at ∼8.8 ka. Precipitation increased at ∼7.8 ka and led to the establishment of closed-canopy forests that have persisted with modest but significant fluctuations until recent. We detect abrupt vegetation changes at ∼17.7 ka, ∼12.7 ka, ∼11 ka, and ∼7.8 ka, driven primarily by changes in southern westerly wind (SWW) influence and, secondarily, by intense fire activity. Terrestrial and aquatic ecosystems show pervasive millennial and centennial-scale alternations between warm/dry and cold/wet states since ∼11 ka contemporaneous with glacier fluctuations in nearby Monte San Lorenzo, suggesting recurrent oscillations in SWW influence. Deforestation and spread of non-native plants attest to disturbance by Chilean/European settlers since ∼0.3 ka. Our results and conclusions reinforce the concept that variations in temperature and precipitation related to changes in the position/strength of the SWW underpin millennial/centennial timescales in the biosphere, hydrosphere, and cryosphere at Patagonian, zonal, and hemispheric scales.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"364 ","pages":"Article 109467"},"PeriodicalIF":3.2,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144280778","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":"Vegetation dynamics and land-use history during the Holocene in Corsica (Western Mediterranean): Regional patterns and local landscape transformation in changing coastal ecosystems","authors":"Jordi Revelles ,&nbsp;Ralph Fyfe ,&nbsp;Matthieu Ghilardi ,&nbsp;Andrés Currás ,&nbsp;Federico Di Rita","doi":"10.1016/j.quascirev.2025.109469","DOIUrl":"10.1016/j.quascirev.2025.109469","url":null,"abstract":"<div><div>The archaeoecological research conducted in Corsica underscores the critical role of integrating palynological studies from sedimentary deposits to reconstruct past human-environment interactions. This approach sheds new light on evidence of farming activities and redefines archaeological territories and human occupation temporalities. Understanding the influence of human activities on coastal ecosystems requires outlining natural and climatic dynamics at a regional scale while evaluating landscape transformations at local scale, where human imprints are clearly evidenced. To achieve this, we applied quantitative methodologies to disentangle regional pollen loading from local vegetation signals. The Landscape Reconstruction Algorithm (LRA) was employed as an advanced tool to quantify vegetation cover within the source area of pollen sites, enabling the estimation of the relative abundance of key taxa around pollen sites and distinguishing these from the regional vegetation background. Specifically, the REVEALS and LOVE models were used to reconstruct vegetation history at two spatial scales: regional and local.</div><div>This study reconstructs Holocene vegetation dynamics and human impact in Corsica using quantitative pollen-based models (REVEALS, LOVE) applied to fifteen coastal wetland records and one high-mountain lake. Results reveal that farming activities began around 7400 cal yr BP and intensified during the Roman period, profoundly altering Mediterranean forests and maquis. Coastal landscape evolution was shaped by marine transgression, deltaic progradation, and anthropogenic transformation, with key phases of environmental change aligning with major climatic oscillations and land-use intensification. These findings offer valuable insights into long-term Mediterranean socio-ecological dynamics.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"365 ","pages":"Article 109469"},"PeriodicalIF":3.2,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144261887","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":"Environmental response of coastal lake Huelde, Chile, after tsunami inundation and earthquake-induced subsidence","authors":"Emma P. Hocking ,&nbsp;Philipp Kempf ,&nbsp;Krzysztof Pleskot ,&nbsp;Magdalena Suchora ,&nbsp;Piotr Kołaczek ,&nbsp;Markus Niederstätter ,&nbsp;Jasper Moernaut","doi":"10.1016/j.quascirev.2025.109474","DOIUrl":"10.1016/j.quascirev.2025.109474","url":null,"abstract":"<div><div>With extreme sea-level events, including storms and tsunamis, projected to flood the coastal zone more often over the coming centuries, understanding their impacts is paramount. Whilst immediate impacts are well studied, we know relatively little about how coastal environments recover in the subsequent years and decades after such events. Here we investigate the response and recovery dynamics of the sedimentary system and biological environment to saltwater inundation into a coastal lake on Chiloé Island, northern Chilean Patagonia, from two tsunamis (in 1960 CE and 2670 cal yr BP) and as a consequence of earthquake-induced land-level change. We utilise an existing unique well-dated sediment record from Lake Huelde containing multiple tsunami inundation events, which provides an exceptional sedimentary archive and opportunity to improve understanding of the impacts of marine inundation on freshwater lake ecosystems by re-examining the sediments for new proxies. Analysis of the geochemistry of lacustrine sediments and the biota (algae, aquatic invertebrates and pollen) preserved within them, shows that the sedimentary and ecological responses to two tsunamis in 1960 CE and 2670 cal yr BP differed in nature and timing. We show that biota responded more immediately to the 2670 cal yr BP event, and impacts were longer lasting; saline anoxic bottom water can prevail for decades to centuries post-inundation. We suggest that key drivers of post-tsunami response and recovery are initially the rate of refreshment after saltwater inundation, and over the longer-term, connectivity to the ocean. In an area affected by earthquake-induced land-level changes, these can influence not only the establishment of sustained connection to the ocean, but can also bring the lake ecosystem within reach of storms and spring high tides, which can impact post-tsunami recovery. We therefore suggest that at Lake Huelde, relative sea (land)-level change, and hence tidal connection of the lacustrine system to the ocean, plays a critical role in ecosystem response.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"365 ","pages":"Article 109474"},"PeriodicalIF":3.2,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144270484","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":"Quaternary sedimentary evolution and source apportionment in the northwestern South China Sea: Evidence from geochemical and zircon U-Pb data","authors":"Peng-Fei Xiong ,&nbsp;Shu Jiang ,&nbsp;Cong Cheng ,&nbsp;Kai Zhang ,&nbsp;Xiao-Yu Fang ,&nbsp;Tao Jiang ,&nbsp;Jia-Le Fu ,&nbsp;Hong-Ji Liu ,&nbsp;Xin-Rui Zhou ,&nbsp;Xu-Shen Li","doi":"10.1016/j.quascirev.2025.109465","DOIUrl":"10.1016/j.quascirev.2025.109465","url":null,"abstract":"<div><div>The sedimentary basins in the northwestern South China Sea (SCS) preserve crucial records regarding the evolution of the Qinghai-Tibet Plateau and exhibit significant potential as hosts for natural gas hydrate resources. However, the limited availability of Quaternary stratigraphic samples in this region has impeded a more comprehensive understanding of the Quaternary sedimentary evolution within the area. This study integrates new and published detrital zircon U-Pb ages with geochemical analyses to elucidate the provenance and transport pathways of Quaternary sediments in the Qiongdongan Basin (QDNB) in the northwestern SCS, providing new insights into its evolution. Analyses of major and trace elements in Quaternary sediments, along with detrital zircon U-Pb age spectra, indicate that the QDNB primarily received sediment supply from the Red River source, with significant characteristics of the Pearl River source also observed in the eastern and northeastern parts of the basin. The contribution from Hainan Island was limited, even in the northern shelf areas closer to the island. Quantitative analysis reveals a gradual increase in the contribution of the Pearl River source from the western to the eastern deep-water regions of the QDNB, ranging from 46.05 % to 65.74 %. It is inferred that deep currents transport fine-grained sediments, predominantly from the Pearl River source, from the eastern side of the Xisha Trough to the QDNB. However, within the QDNB, the Quaternary sediments are primarily influenced by the Red River source. Topography is the primary factor controlling the large-scale migration of sediments in the northwestern SCS, while ocean currents have a significant impact on the transport of fine-grained sediments. The rapid uplift of the Qinghai-Tibet Plateau during the Quaternary was a primary driver of accelerated sedimentation rates in the northwestern SCS basin. This study elucidates the spatial variations in sediment provenance across different regions of the northwestern SCS, providing crucial geological evidence for understanding the Quaternary sedimentary evolution.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"364 ","pages":"Article 109465"},"PeriodicalIF":3.2,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144253629","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":"Contrasting Pacific Decadal Oscillation influence on ice core dust deposition across the Tibetan Plateau","authors":"Cheng Wang ,&nbsp;Lide Tian ,&nbsp;Zhongyin Cai ,&nbsp;Lili Shao ,&nbsp;Ju Huang ,&nbsp;Rong Li ,&nbsp;Chenhao Xu ,&nbsp;Zixiang Zhao","doi":"10.1016/j.quascirev.2025.109461","DOIUrl":"10.1016/j.quascirev.2025.109461","url":null,"abstract":"<div><div>Understanding the spatiotemporal variability of atmospheric dust over the Tibetan Plateau (TP) and its response to large-scale climate patterns is critical for comprehending regional climatic and environmental changes. Here, we present an annually resolved Ca²⁺ concentration record from the Qiangtang No. 1 Glacier spanning 1800–2011 CE to investigate the influence of the Pacific Decadal Oscillation (PDO) on dust deposition in the central TP. Correlation and wavelet analyses demonstrate a significant relationship between the QT Ca²⁺ record and reconstructed PDO indices derived from Asian proxies, with both exhibiting coherent pentadecadal periodicities. Combined with other TP dust records, our analyses reveal that the PDO has a regionally contrasting influence on interdecadal dust variability over the TP. Specially, the PDO exhibits a significant positive correlation with dust concentration records in the central and southern TP, whereas a negative correlation in the northwestern TP. This spatial pattern persists at least over the past millennium, as evidenced by long-term ice core dust records. During the positive PDO phases, intensified aridity in South Asia and enhanced atmospheric transport contribute to elevated atmospheric dust loading over the southern TP, while wetter conditions in Central Asia and weakened westerly circulation likely result in reduced dust level over the northwestern TP. These findings on the PDO's spatially heterogeneous influences offer new insights into how the PDO modulates the long-term dust variability across the TP.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"364 ","pages":"Article 109461"},"PeriodicalIF":3.2,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144242378","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}