Journal of Quaternary Science最新文献

{"title":"Geochronological reconstruction of the Lateglacial deglaciation in the Arve Valley (Northern French Alps)","authors":"Quentin Portal,&nbsp;Christian Crouzet,&nbsp;Jean-François Buoncristiani,&nbsp;Julien Carcaillet","doi":"10.1002/jqs.70093","DOIUrl":"https://doi.org/10.1002/jqs.70093","url":null,"abstract":"<p>The timing and spatial patterns of glaciers retreat in the Northern French Alps during the Lateglacial (19.0–11.7 ka) remain debated, reflecting discrepancies among available chronological data sets. The complex interactions between major glaciers, such as the Rhône and Arve glaciers to the north and the Isère glacier to the south, represent a significant challenge for reconstructing post-Last Glacial Maximum (LGM) glacial retreat. In this study, we present a new framework for understanding Lateglacial glacier history in the Arve Valley, integrating 18 new in situ ¹⁰Be terrestrial cosmogenic nuclide (TCN) exposure ages obtained from erratic and morainic boulders together with refined geomorphological interpretations based on LiDAR-derived Digital Elevation Models (DEMs). Results, expressed as minimum exposure ages, indicate that glacier recession began around 17.6 ka, with the Arve glacier remaining in the downstream sector of the valley until the end of a readvance phase around 15.9 ka. Following this readvance, the glacier receded by more than 30 km in a few hundred years at most, before continuing to withdraw towards the Mont-Blanc massif prior to the Younger Dryas readvance. These findings provide new constraints on the timing of deglaciation in the Northwestern Alps and contribute toward a better understanding of post-LGM glacier retreat in a complex confluence system.</p>","PeriodicalId":16929,"journal":{"name":"Journal of Quaternary Science","volume":"41 7","pages":"1020-1035"},"PeriodicalIF":1.9,"publicationDate":"2026-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jqs.70093","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Late Holocene environmental history of Dojran, Macedonia: Investigating the interplay of imperial dynamics and climatic change","authors":"Alessia Masi,&nbsp;Lucrezia Masci,&nbsp;Georgios C. Liakopoulos,&nbsp;Monica Bini,&nbsp;Alexander Francke,&nbsp;Ilaria Isola,&nbsp;Carlo Ricotta,&nbsp;Laura Sadori,&nbsp;Alexander Sarantis,&nbsp;Sławomir Sprawski,&nbsp;Jakub Sypiański,&nbsp;Irene Tunno,&nbsp;Cristiano Vignola,&nbsp;Bernd Wagner,&nbsp;Giovanni Zanchetta,&nbsp;Adam Izdebski","doi":"10.1002/jqs.70087","DOIUrl":"https://doi.org/10.1002/jqs.70087","url":null,"abstract":"<p>This study presents a high-resolution, multi-proxy reconstruction of environmental and land-use change from Lake Dojran over historical times (last 2500 years), combining pollen, biomarkers, radiocarbon dating, Ottoman taxation records and other historical data. Our results show that vegetation dynamics were persistently shaped by human activity, with climatic variability acting as a secondary driver. Agricultural expansion, arboriculture, pastoralism and woodland clearance correspond to the differing political and economic regimes of the Macedonian, Hellenistic, Roman, Byzantine and Ottoman periods. Phases of stability—such as the (Roman) Augustan era and the 16th-century <i>Pax Ottomana</i>—coincide with strong agricultural intensification, while climatic anomalies, conflict and epidemics are reflected in declines in cultivation. The integration of palaeoecological data with spatially resolved Ottoman records allows the identification of distinct socio-ecological zones within the catchment, including cereal-oriented lowlands and pastoral uplands, explaining divergent land-use trajectories. These combined data sets demonstrate the value of a consilient approach, revealing how environmental, economic and administrative factors interacted to shape long-term landscape transformation and local resilience.</p>","PeriodicalId":16929,"journal":{"name":"Journal of Quaternary Science","volume":"41 7","pages":"996-1019"},"PeriodicalIF":1.9,"publicationDate":"2026-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jqs.70087","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Decoupling glacier retreat and surface stabilization on the Snežnik Plateau (Slovenia), insights from in situ cosmogenic 36Cl exposure and depth-profile ages","authors":"Onur Altınay,&nbsp;Mehmet Akif Sarıkaya,&nbsp;Uroš Stepišnik,&nbsp;Manja Žebre,&nbsp;Cengiz Yıldırım,&nbsp;Attila Çiner,&nbsp;Klaus M. Wilcken","doi":"10.1002/jqs.70095","DOIUrl":"https://doi.org/10.1002/jqs.70095","url":null,"abstract":"<p>Glaciokarst landscapes pose distinctive challenges for cosmogenic dating because meltwater and runoff can be rapidly rerouted into ponors and conduit networks, weakening glacier–river coupling and promoting local sediment storage. We reconstruct glacier retreat and postglacial stabilization on the Snežnik Plateau (SW Slovenia) using in situ cosmogenic ³⁶Cl exposure ages from moraine boulders and ³⁶Cl depth-profile ages from moraine matrix and glaciofluvial outwash. At Sviščaki (NW sector), boulder ages span 13.0 ± 1.7 to 8.0 ± 1.0 ka and, together with a moraine-matrix depth-profile age of 11.4 ± 0.7 ka, indicate deglaciation by the Late Glacial and surface stabilization by ~11 ka. At Praprotna Draga (NE sector), the oldest boulder ages are ~15 ka, while an adjacent outwash/alluvial-fan depth profile (~12 ka) suggests that proglacial reworking waned near the Late Glacial–Early Holocene transition. In contrast, the Gomance piedmont polje yields an outwash depth-profile age of 8.4 ± 0.2 ka, consistent with prolonged storage and repeated burial–exposure dynamics in a karst sediment sink. Overall, the Snežnik chronology shows that cosmogenic ages in glaciokarst commonly track stabilization and process filtering rather than uniquely dating maximum ice extent.</p>","PeriodicalId":16929,"journal":{"name":"Journal of Quaternary Science","volume":"41 7","pages":"1060-1077"},"PeriodicalIF":1.9,"publicationDate":"2026-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jqs.70095","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149145837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Palaeoenvironmental reconstruction from Eemian insect remains at Ejstrup, Denmark: Evidence for a riverine setting","authors":"Emil Schou Nielsen,&nbsp;Jesper Petersen,&nbsp;Havananda Ombashi,&nbsp;Søren Munch Kristiansen,&nbsp;Tim Kinnaird,&nbsp;Aayush Srivastava,&nbsp;Trine Kellberg Nielsen,&nbsp;Peter Wiberg-Larsen","doi":"10.1002/jqs.70084","DOIUrl":"https://doi.org/10.1002/jqs.70084","url":null,"abstract":"<div>\u0000 \u0000 <p>The freshwater environments of the Eemian are well documented, although mostly focussed on lakes. Here, we present results from lake sediments of dark grey, laminated, organic-rich medium sand, on top of very dark grey gyttja at the site of Ejstrup, west of Kolding, Denmark. Based on pollen counts, the sediments were biostratigraphically classified as mid-Eemian. Despite the lake deposition, the assemblage of aquatic insect subfossils clearly indicates a river environment. The aquatic assemblage was rich, including five beetle taxa, 23 caddisfly taxa and 29 taxa of dipterans (non-biting midges, blackflies and brine flies). Specifically, analyses of the species' habitat traits point to a 15–25 m wide river, likely a tributary to a lake. This lowland river was likely fast-flowing, and meandering, with a sequence of riffle areas containing boulders, stones and gravel, separated by areas of sand, and bordered by silty/muddy areas along the banks. Furthermore, the riverbed may have contained a large amount of submerged dead wood but only sparse vegetation, due to an overall dense riparian canopy dominated by <i>Carpinus betulus</i>, <i>Corylus avellana</i> and <i>Alnus</i> sp. Based on the Trichoptera species, we reconstruct a mid-Eemian July mean air temperature of 18.1°C, that is, 1.2°C higher than the 1991–2020 average. The Eemian river environment, assumed to be unaffected by human influence, may serve as a useful reference for the present-day restoration of heavily anthropogenically impacted Danish and European rivers.</p>\u0000 </div>","PeriodicalId":16929,"journal":{"name":"Journal of Quaternary Science","volume":"41 6","pages":"857-872"},"PeriodicalIF":1.9,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148700035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Farming in the shadows of Rome: A multi-proxy palaeoenvironmental record from Loch Clunie—Perthshire","authors":"Samantha E. Jones,&nbsp;Maarten Blaauw,&nbsp;Fraser Hunter,&nbsp;Olalla López-Costas,&nbsp;Antonio Martínez Cortizas,&nbsp;Tim M. Mighall,&nbsp;Gordon Noble","doi":"10.1002/jqs.70085","DOIUrl":"https://doi.org/10.1002/jqs.70085","url":null,"abstract":"<p>Roman impacts on local society is a subject of international significance. Loch Clunie, Perthshire, lies only 5.4 km from Inchtuthil, the only Roman legionary fortress in Scotland, and contains two crannogs and a probable lakeside hillfort. Despite this proximity and the likelihood of local–Roman interaction, these sites remain unexcavated. This paper presents palaeoenvironmental evidence for long-term social-economic change at Loch Clunie, contributing to a region with few well-dated environmental–archaeological sequences for the Roman Iron Age and beyond. Pollen, non-pollen palynomorph and sedimentological analyses are used to investigate patterns of environmental change and social activity from the later prehistoric period through to the late medieval era. The results indicate the presence of a local farming community pre-dating Roman incursions into Scotland. This is followed by a marked increase in barley cultivation either slightly before or during the early Roman Iron Age. The mid-Roman Iron Age is represented by a short-lived vegetation downturn and subsequent recovery. However, the most distinct change occurs during the late Roman Iron Age, represented by a pronounced decline to almost complete disappearance of barley from the third to fourth centuries AD, lasting approximately 400 years. Settlement–economic downturns are emerging at other sites in north-eastern Scotland with comparable temporal scales, although their causes appear to be complex. At Loch Clunie, there is no evidence to link this event to the Severan campaigns of AD 208–211. Indeed, this event appears slightly later. There is evidence, however, for a rise in lake levels, which could potentially be linked to Late Roman climatic deterioration.</p>","PeriodicalId":16929,"journal":{"name":"Journal of Quaternary Science","volume":"41 6","pages":"915-932"},"PeriodicalIF":1.9,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jqs.70085","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148700008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Shared foraging behaviors between hyenas and hominins in the Middle Paleolithic Levant: New evidence from Geula Cave, Israel","authors":"Meir Orbach,&nbsp;Omry Barzilai,&nbsp;Israel Hershkovitz,&nbsp;Ma'ayan Lev,&nbsp;Reuven Yeshurun","doi":"10.1002/jqs.70086","DOIUrl":"https://doi.org/10.1002/jqs.70086","url":null,"abstract":"<p>While competition with large carnivores is likely to have shaped Middle Paleolithic hominins' subsistence behavior, palimpsested human and carnivore accumulations render the signal challenging to isolate. This study presents a detailed zooarchaeological and taphonomic analysis of a non-anthropogenic faunal assemblage from a MIS 5 (~130–80 ka) hyena den and porcupine lair at Geula Cave (Mount Carmel, Israel). The assemblage features abundant hyena and porcupine remains, pervasive gnawing, and negligible anthropogenic impact, which we draw on to assess human–carnivore interaction (or resource use). The ungulate assemblage is diverse and similar to that of contemporaneous anthropogenic assemblages, implying significant hunting-niche overlap. We propose that high ungulate diversity during MIS 5, possibly driven by interglacial corridor connectivity between Africa and the Levant, reduced competitive pressure and facilitated coexistence. Using hyena prey as an ecological baseline reveals how apparent “human choices” may reflect shared constraints within a competitive predator guild.</p>","PeriodicalId":16929,"journal":{"name":"Journal of Quaternary Science","volume":"41 6","pages":"896-914"},"PeriodicalIF":1.9,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jqs.70086","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148700061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Site formation processes and environmental change during the Late Pleistocene–Holocene in Long Long Rak Cave, Mae Hong Son, Thailand","authors":"Seriwat Saminpanya,&nbsp;Chanon Dangsepon,&nbsp;Patteera Alaisuk,&nbsp;Worawee Mitaumpan,&nbsp;Kittisak Baisukhan,&nbsp;Palida Thanyaanantachai,&nbsp;Tipsuda Raksuwan","doi":"10.1002/jqs.70090","DOIUrl":"https://doi.org/10.1002/jqs.70090","url":null,"abstract":"<div>\u0000 \u0000 <p>Cave sediments are key archives of past environmental and climatic change, and yet, detailed terrestrial records from tropical south-east Asia remain scarce, particularly from archaeologically relevant sites. This study analyses 29 sediment samples from Long Long Rak Cave, an archaeologically significant site with evidence of human burial and occupation dating to ~2 ka, Thailand, using X-ray fluorescence (XRF), X-ray diffraction (XRD), particle-size analysis and thermoluminescence (TL) dating (six age estimates) to investigate environmental change and sedimentary processes. Sedimentation patterns vary between chambers, reflecting differences in cave morphology and microclimate. Higher-energy depositional conditions during ~13.4–11.3 ka, as evidenced by coarse sediments, erosional surfaces and Fe/Mn nodules formed under fluctuating redox conditions, indicate variable hydrological conditions with episodic higher-energy flow events and enhanced sediment transport, broadly corresponding to terminal Pleistocene climatic instability, including the Younger Dryas. This was followed by a transitional phase of reduced and variable water input prior to a stratigraphic discontinuity at ~10.3 ka, which marks a shift to lower-energy slackwater deposition and reduced sediment supply, marking Early Holocene hydrological adjustment. Evidence for post-depositional modification includes clay translocation, Fe/Mn oxide and phosphate mobilisation, secondary calcite precipitation and bioturbation by termites and humans. Human activity is restricted to upper deposits dated to ~2 ka, indicating that most natural sediment accumulation predates cultural use of the cave.</p>\u0000 </div>","PeriodicalId":16929,"journal":{"name":"Journal of Quaternary Science","volume":"41 6","pages":"950-971"},"PeriodicalIF":1.9,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148699877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hydraulic reconstruction of catastrophic drainage from the Late Glacial, Lake Fraser, British Columbia, Canada","authors":"Sean M. Loeffler,&nbsp;John J. Clague,&nbsp;Brendan G. N. Miller,&nbsp;Sophie L. Norris","doi":"10.1002/jqs.70083","DOIUrl":"https://doi.org/10.1002/jqs.70083","url":null,"abstract":"<p>Glacial Lake Fraser, which formed in British Columbia against the retreating Cordilleran Ice Sheet, stored ~520 km³ of water before its near-total drainage into the Salish Sea during an outburst flood event. Despite the impact of the outburst flood on sediment transport and landscape evolution in the Fraser River valley, its peak discharge and drainage duration are not well constrained. Here, multiple numerical modelling techniques are used to provide insight into the characteristics of the outburst flood. Boulder fields and giant gravel bars that provide evidence of water depth and flow dynamics are used to calibrate a step-backwater model of peak discharge. This numerical estimate of peak discharge is compared with several ice-dam failure scenarios, involving different parameters for the failure mechanism, duration and size, simulated using the HEC-RAS dam-breach model. The glacial Lake Fraser outburst flood had a peak discharge of at least 500 000–800 000 m³ s⁻¹, and incision of the ice dam was likely relatively gradual, meaning that the lake drained over the course of several weeks. These findings improve our understanding of flood dynamics and enable more detailed estimations of the regional impacts of this event.</p>","PeriodicalId":16929,"journal":{"name":"Journal of Quaternary Science","volume":"41 6","pages":"873-887"},"PeriodicalIF":1.9,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jqs.70083","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148699886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Columnanidus calitzdorpensis ichnogen. ichnosp. nov: A new Middle Pleistocene subterranean termite trace fossil from South Africa","authors":"Miengah Abrahams,&nbsp;Robert A. Muir,&nbsp;Jorge F. Genise,&nbsp;John E. Almond,&nbsp;Gcinamahlubi Hadebe,&nbsp;John C. Hellstrom,&nbsp;Rabia Jacobs,&nbsp;Chris Harris","doi":"10.1002/jqs.70089","DOIUrl":"https://doi.org/10.1002/jqs.70089","url":null,"abstract":"<p>Termites are landscape geo-engineers whose nesting activities substantially modify the physical and chemical properties of soils. Fossilised termite nests commonly constitute the only identifiable evidence of ancient termite activity and represent valuable trace fossil archives for reconstructing past environments. Here, we describe a new ichnogenus and ichnospecies, <i>Columnanidus calitzdorpensis</i> ichnogen. ichnosp. nov., from Quaternary alluvial deposits near Calitzdorp, South Africa. The subterranean nests are subcylindrical structures, reaching ~1 m in height and ~65 cm in diameter, and are characterised by a ~12 cm wide, shelved nest wall surrounding an empty central cavity. Within the nest wall, the gallery and chamber morphology and abundance vary between the inner and outer zones. The nests are preserved as calcretised features, composed of inter-laminations of clastic sediment and pedogenic carbonate precipitate. U-series dating of the carbonate laminations yields robust age peaks at 401 ± 46 ka and 323 ± 12 ka, indicating a Middle Pleistocene minimum age for nest formation. These ages coincide with intervals favourable for pedogenic carbonate development under semi-arid to arid climatic conditions. Hardpan calcretes capping the nests suggest prolonged periods of semi-arid conditions and sustained pedogenic stability during the Middle Pleistocene in the Calitzdorp region.</p>","PeriodicalId":16929,"journal":{"name":"Journal of Quaternary Science","volume":"41 6","pages":"933-949"},"PeriodicalIF":1.9,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jqs.70089","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148699958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Identification and correlation of the Aso-3 tephra in the Omaezaki area, central Japan: A valuable key stratum for the MIS 6/5 transition period","authors":"Toshinori Sasaki,&nbsp;Takuya Morimoto,&nbsp;Tatsuyuki Ueno,&nbsp;Kazuo Mizoguchi,&nbsp;Norihisa Goto,&nbsp;Hisanori Ominami,&nbsp;Shohei Onaka","doi":"10.1002/jqs.70092","DOIUrl":"https://doi.org/10.1002/jqs.70092","url":null,"abstract":"<p>The Aso-3 tephra is one of the most significant widespread marker layers from the Middle to Late Pleistocene, generated by a large caldera-forming eruption at the Aso volcano in Kyushu, southwestern Japan. Despite its importance, a distal co-ignimbrite ash correlative has yet to be clearly identified, primarily because although volcanic glass shows a broad chemical composition range, available refractive index and major-element glass data remain limited. This issue has made it difficult to identify the distribution area of the widespread Aso-3 tephra and utilize it as a marker layer. Consequently, the ability to synchronize terrestrial and marine records from Japan and the northwestern Pacific during the Marine Isotope Stage (MIS) 6/5 transition is limited. This study reports the identification of a previously unrecognized tephra layer (SKR tephra) within the basal part of the Furuya Formation in the Omaezaki area of central Japan as Aso-3 tephra. Petrological and geochemical analyses reveal that the SKR tephra consists of two compositionally distinct glass groups, whose major element composition closely corresponds to that of the Aso-3B unit within the Aso-3 pyroclastic flow deposits. Furthermore, the glass composition of SKR tephra matched that of cryptotephra (MD26.70 tephra) contained within a sample taken from marine core MD012422 off the coast of Shikoku at a depth of approximately 26.7 mbsf. The MD26.70 tephra was deposited during the MIS 6/5 transition, demonstrating that the SKR tephra represents a valuable stratigraphic marker synchronizing terrestrial and marine records for this period. Consequently, the SKR tephra contributes to refining the regional tephra chronology of central Japan. It serves as an indicator layer enhancing the potential for high-resolution paleoenvironmental reconstruction of the Japanese archipelago and the northwestern Pacific during the MIS 6/5 transition.</p>","PeriodicalId":16929,"journal":{"name":"Journal of Quaternary Science","volume":"41 6","pages":"972-986"},"PeriodicalIF":1.9,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jqs.70092","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148699967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}