Quaternary InternationalPub Date : 2025-10-30Epub Date: 2025-09-14DOI: 10.1016/j.quaint.2025.109980
Yong-Jiang Huang , Xue-Ping Ji , Nina G. Jablonski , Jian-Hui Liu , Qing Yang , Zi-Ning Zou , Jun Yang , Yun-Heng Ji
{"title":"Archaeobotanical study of the Tangzigou site reveals wild plant exploitation in the terminal Paleolithic of southwest China","authors":"Yong-Jiang Huang , Xue-Ping Ji , Nina G. Jablonski , Jian-Hui Liu , Qing Yang , Zi-Ning Zou , Jun Yang , Yun-Heng Ji","doi":"10.1016/j.quaint.2025.109980","DOIUrl":"10.1016/j.quaint.2025.109980","url":null,"abstract":"<div><div>Wild plants have been an important part of the diet of ancient people, and their remains at archaeological sites are therefore a good proxy for disentangling human exploitation of plant foods in the history. Yunnan in southwest China has been poorly explored in archaeobotany, especially for periods before the Neolithic when gathering was still dominant in plant utilization. Here, we present an archaeobotanical assemblage consisting of fruit and seed remains from the regionally terminal Paleolithic (8740 ± 30 BP) Tangzigou site in western Yunnan. Our taxonomic identification shows that the archaeobotanical assemblage is poor in diversity with only four taxa, i.e., <em>Celtis</em> sp. (hackberry), <em>Prunus persica</em> (wild peach), <em>Vitis</em> sp. (wild grape) and <em>Choerospondias axillaris</em> (Nepal hog plum), which have served as potential food resources to ancient people of the site. However, the full picture of plant exploitation by the Tangzigou people cannot be gained only from the low abundance and diversity of plant remains at the site itself. Based on what is known of the practices of hunter-gatherers today, most fruits and seeds were probably eaten by Tangzigou people during the course of foraging trips, with only a small fraction being carried back to the site for processing and consumption. The fruit stone remains of <em>C. axillaris</em> have been processed with fire accidently or intentionally; the intentional fire-processing was probably for consumption of the seeds inside, which is compatible with the processing of animal foods with fire by the Tangzigou people. Our study brings to light the possible incorporation of plant food resources into the diet of the latest Paleolithic Tangzigou people who are suggested to have lived under a warm subtropical climate. It also enriches our knowledge of the historical use of wild plants by early Holocene humans in southwest China.</div></div>","PeriodicalId":49644,"journal":{"name":"Quaternary International","volume":"748 ","pages":"Article 109980"},"PeriodicalIF":1.8,"publicationDate":"2025-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145057312","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}
Quaternary InternationalPub Date : 2025-10-30Epub Date: 2025-09-20DOI: 10.1016/j.quaint.2025.109970
Аleksei V. Tetenkin
{"title":"Excavations at Kovrizhka IV site and its bearing on research of the Late Upper Paleolithic and human adaptation to the environment of last glacial maximum in Baikal-Patom Highlands, Siberia","authors":"Аleksei V. Tetenkin","doi":"10.1016/j.quaint.2025.109970","DOIUrl":"10.1016/j.quaint.2025.109970","url":null,"abstract":"<div><div>The archaeological assemblages of the Kovrizhka IV site, 19–18 ka BP, allows for the reconstruction of a set of cultural traditions of the inhabitants of the early phase of the Late Upper Paleolithic – the end of the Last Glacial Maximum detailed in such aspects as lithic processing, food supply, construction of dwellings and hearths, mobility, and symbolic activity. Kovrizhka IV has been identified as a series of seasonal residential camps on the beach line near a cliff of a rocky cape protruding into the Vitim River. Remains of dwellings were excavated in cultural horizons 6, 3 B, 3/2, 2G and remains of a hearth feature in cultural horizon 2 B. In two cases, the living area colored or sprinkled with ochre pieces. In summary, the existing data characterize a stable, reproductively successful lifestyle in terms of adaptation and survival to the conditions of the LGM lasting approximately 500 years. The lithic processing techniques documented in the contexts of the production of microblades, macroblades, coarse prismatic blades, flakes, facial finishing of bifaces and unifaces, and judging by the graphite pendant, grinding and drilling techniques. The Yubetsu technique of microblade pressure knapping was known to the people at Kovrizhka IV, but another technique, called the Kovrizhka method, much more opportunistic in terms of blank choice and core rotation, was dominant. The rest of the lithic production at Kovrizhka IV demonstrates the cumulative nature of the preservation of traditions dating back to the Early Upper Paleolithic (macroblades), and the Middle Upper Paleolithic (coarse prismatic blades) of Siberia. The main corresponding cultures are identified as the Studenoye culture of the LUP in southern Transbaikalia and the Dyuktai culture of Yakutia. In general, the lithic industry, and especially the technique of pressure knapping microblades, is characterized as a demonstrable continuity from Kovrizhka IV to sites of the Final MIS-2 of the Baikal-Patom Highlands such as Bolshoi Yakor I, Avdeikha, and Kovrizhka III. This culture is portrayed as a local adaptive set, contributing to the general ideas about the culture of the early LUP of Northeast Asia. In terms of dwelling features, toolkits, microblade production, and anthropomorphic figurines, Kovrizhka IV is unique for the whole of North Baikal Siberia, and makes a significant contribution to the general panorama of late Upper Paleolithic Northeast Asia.</div></div>","PeriodicalId":49644,"journal":{"name":"Quaternary International","volume":"748 ","pages":"Article 109970"},"PeriodicalIF":1.8,"publicationDate":"2025-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106999","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}
Quaternary InternationalPub Date : 2025-10-30Epub Date: 2025-09-08DOI: 10.1016/j.quaint.2025.109969
Petar Krsmanović , Zoran M. Perić , Warren Thompson , Milica G. Radaković , Cathal S. Ryan , Randall J. Schaetzl , Qingzhen Hao , Tin Lukić , Helena Alexanderson , Slobodan B. Marković
{"title":"Loess provenance in the westernmost part of the lower Danube Basin, Serbia: Geochemical insights from the Velika Vrbica fluvial–eolian section","authors":"Petar Krsmanović , Zoran M. Perić , Warren Thompson , Milica G. Radaković , Cathal S. Ryan , Randall J. Schaetzl , Qingzhen Hao , Tin Lukić , Helena Alexanderson , Slobodan B. Marković","doi":"10.1016/j.quaint.2025.109969","DOIUrl":"10.1016/j.quaint.2025.109969","url":null,"abstract":"<div><div>Our study examined the chemical composition of fluvial and eolian sediments at the Velika Vrbica multisection, located on the bank of the Danube River in eastern Serbia, within the westernmost part of the lower Danube (Dacian) Basin. The multisection comprises two discrete sections: an older 2.7 m thick fluvial section, and a younger 11.2 m thick loess-paleosol sequence (LPS). These are exposed along the sides of a gully incised into a Danube River terrace that is covered by loess. Using luminescence dating, litho- and pedo-stratigraphy, and weathering proxies, we conclude that the fluvial section formed during Marine Isotope Stage (MIS) 6, and the overlying loess spans semi-continuously from late MIS 6 to the present. In order to use only elemental ratios unaffected by weathering and grain-size sorting, and thus serving as reliable provenance proxies, we introduce a novel statistical parameter – the path adherence coefficient (PAC). Along with the PAC, we also employ the well-established R<sup>2</sup> on geochemical data from the fluvial sediments. We identified Zr/Al<sub>2</sub>O<sub>3</sub> and TiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> ratios as the most reliable provenance proxies, enabling us to discern temporal variations in sediment provenance at the Velika Vrbica LPS. The fine-grained portions of the LPS exhibit a significantly different provenance than that of the Danube River sediments. This difference is attributed to the transport of fine, loessial material over long distances, incorporating multiple sediment sources (likely originating from the Carpathians), from beyond the Danube River alluvium, into the loess. In contrast, the coarser, sand-rich sediment within the Velika Vrbica LPS section, which formed during MIS 2, has a more local provenance, having been derived almost exclusively from Danube River alluvium.</div></div>","PeriodicalId":49644,"journal":{"name":"Quaternary International","volume":"748 ","pages":"Article 109969"},"PeriodicalIF":1.8,"publicationDate":"2025-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011302","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}
Quaternary InternationalPub Date : 2025-10-30Epub Date: 2025-09-16DOI: 10.1016/j.quaint.2025.109981
Lenka Lisá , Martina Roblíčková , Ivo Světlík , Jiří Šneberger , Michał Gąsiorowski , Šárka Matoušková , Aleš Plichta , Vlastislav Káňa
{"title":"Dynamics of sediment formation in barová cave (Moravian Karst) during the last glacial cycle","authors":"Lenka Lisá , Martina Roblíčková , Ivo Světlík , Jiří Šneberger , Michał Gąsiorowski , Šárka Matoušková , Aleš Plichta , Vlastislav Káňa","doi":"10.1016/j.quaint.2025.109981","DOIUrl":"10.1016/j.quaint.2025.109981","url":null,"abstract":"<div><div>The last climatic cycle in the terrestrial environment is usually recorded in open loess sites. However, the frontal parts of caves often inhabited during the Palaeolithic occupation frequently provide valuable sedimentary archives. We propose that the most effective approach to studying these deposits is dual dating methods combined with micromorphology. Radiometric dating (<sup>14</sup>C and U-Th) coupled with analysis of sediment formation processes of the sedimentary record indicates that the intensive clearing of Barová Cave occurred at least by the end of the last interglacial, in MIS 4 and early MIS 3. During the period ca. 55-36 kyr BP, i.e., during the main phase of MIS 3, relatively slow sedimentation occurred in the open space in the cave, which created above underlying sediments by the previous clearance. The sedimentary record consists almost exclusively of osteological material showing signs of corrosion, including collagen depletion. This layer of osteological material is overlain by relatively thick clayey sediments, again with a number of animal bones dated consistently to MIS 3, representing a rapid erosional phase. This erosional phase is likely associated with the transition between MIS 3 – MIS 2. MIS 2 itself includes one of the coldest and driest periods of the Last climatic cycle, i. e. Last Glacial Maximum (LGM), which is represented in the cave record by redeposited loess showing signs of freezing. The onset of the Holocene is marked by a continuous layer of sinter. The combination of <sup>14</sup>C, U-Th, and sedimentological and micromorphological analyses has proven to be an effective approach for interpreting the site's formation history and its relationship to climatic changes during the last climatic cycle.</div></div>","PeriodicalId":49644,"journal":{"name":"Quaternary International","volume":"748 ","pages":"Article 109981"},"PeriodicalIF":1.8,"publicationDate":"2025-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145107000","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}
Quaternary InternationalPub Date : 2025-10-15Epub Date: 2025-09-08DOI: 10.1016/j.quaint.2025.109954
Margarida P. Gouveia , Pedro P. Cunha , António A. Martins , Martin Stokes , Alberto Gomes , Christophe Falguères , Pierre Voinchet , Jean-Jacques Bahain , Telmo Pereira , Silvério Figueiredo , Qingfeng Shao , Olivier Tombret
{"title":"Plio-Quaternary coastal uplift along the western Iberian Margin: insights from dated marine terraces (Peniche, Portugal)","authors":"Margarida P. Gouveia , Pedro P. Cunha , António A. Martins , Martin Stokes , Alberto Gomes , Christophe Falguères , Pierre Voinchet , Jean-Jacques Bahain , Telmo Pereira , Silvério Figueiredo , Qingfeng Shao , Olivier Tombret","doi":"10.1016/j.quaint.2025.109954","DOIUrl":"10.1016/j.quaint.2025.109954","url":null,"abstract":"<div><div>This study presents a detailed geomorphological and geochronological analysis of a marine terrace staircase developed into the Peniche Peninsula (Portugal), a rocky headland of Jurassic carbonate bedrock located in the central sector of the Western Iberian passive margin. The marine terrace levels are described morphologically and sedimentologically, but also dated using ESR and U-Series methodologies. The marine terrace staircase comprises six emerged levels ranging from 4 m (above mean sea level, asl) (Tm6) to 24–28 m asl (Tm1), inset into a summit wave-cut platform at 29–45 m asl (Pm). The marine terrace sediments are composed of rounded boulders to cobbles and coarse sands. Dating results reveal that the marine terrace staircase spans ∼900 ka across the Middle-Late Pleistocene. The terraces can be assigned to either a single sea-level highstand or a level that has been re-occupied by two sea level highstands. The staircase records very low uplift rates (0.04 to −0.02 m/ka; the longer-term mean rate for the entire Pleistocene staircase is 0.03 m/ka), typical of a passive continental margin. Regionally, coastal terrace staircases are typically found along the Western Iberian passive margin, with their configuration locally influenced by the underlying bedrock geology and tectonic history.</div></div>","PeriodicalId":49644,"journal":{"name":"Quaternary International","volume":"747 ","pages":"Article 109954"},"PeriodicalIF":1.8,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145018448","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}
Quaternary InternationalPub Date : 2025-10-15Epub Date: 2025-09-02DOI: 10.1016/j.quaint.2025.109967
Jeongeun Lee, Jaehoon Hwang
{"title":"Abandonment and population fluctuations of prehistoric villages: Focusing on the Geum River Basin during Korea's Bronze Age","authors":"Jeongeun Lee, Jaehoon Hwang","doi":"10.1016/j.quaint.2025.109967","DOIUrl":"10.1016/j.quaint.2025.109967","url":null,"abstract":"<div><div>This study examines population fluctuations in the Geum River basin during the Early and Middle Bronze Age through settlement distributions, changes in the number of settlements and dwellings, and SPDs of radiocarbon dates. Despite broadly shared material culture during the Bronze Age, demographic patterns varied significantly across four subregions—Miho, upper, middle, and lower Geum River—largely influenced by local topography. In the Miho and upper Geum Rivers, limited settlement space constrained population growth. In contrast, the middle Geum River allowed for settlement expansion and in-migration, but this eventually triggered environmental and social stress, leading to abandonment at the end of Early Bronze Age. The resulting dispersal appears to have contributed to population reorganization in the lower Geum River during the Middle Bronze Age. In this period, changes in subsistence strategies and social structure fostered the emergence of large-scale settlements, sustained in part by group ritual practices.</div></div>","PeriodicalId":49644,"journal":{"name":"Quaternary International","volume":"747 ","pages":"Article 109967"},"PeriodicalIF":1.8,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144926350","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}
Quaternary InternationalPub Date : 2025-10-15Epub Date: 2025-10-10DOI: 10.1016/j.quaint.2025.109955
Christopher F.G. Hebda , Richard J. Hebda , Daryl Fedje , Bryn Letham , Angela Dyck , Duncan McLaren
{"title":"Late Pleistocene vegetation and climate history of northern Vancouver Island, Canada: spatiotemporal variation in deglacial ecology along the Pacific margin of the Cordilleran Ice Sheet","authors":"Christopher F.G. Hebda , Richard J. Hebda , Daryl Fedje , Bryn Letham , Angela Dyck , Duncan McLaren","doi":"10.1016/j.quaint.2025.109955","DOIUrl":"10.1016/j.quaint.2025.109955","url":null,"abstract":"<div><div>Palaeoecological analysis of six cores on northern Vancouver Island, Canada, reveals asynchronous vegetation responses to climatic changes at the interface of the Cordilleran Ice Sheet and the Pacific Ocean during the terminal Pleistocene and earliest Holocene. We describe rapid vegetation shifts and define them in a regional palynostratigraphic sequence: the Non-Arboreal Herb-Shrub Zone, the <em>Pinus</em> (pine) Zone, the Mixed <em>Alnus</em>-<em>Picea</em> (alder-spruce) Zone, the <em>Tsuga</em> (hemlock) Zone, and the <em>Alnus</em> (alder) and Conifer Zone. On the outer west coast, cold and dry non-arboreal steppe-tundra was established first by ∼18,000 years ago, appearing later to the east and persisting there as late as ∼14,100 years ago. Pine dominated briefly in the west at ∼16,000 years ago under cool and relatively dry conditions, spreading progressively eastward and predominating at most sites by ∼14,300–14,100 years ago. Precipitation subsequently increased, with red/green alder and Sitka spruce (<em>Picea sitchensis</em>) as key species in the west from ∼15,700 years ago under moderate and moist conditions before spreading to eastern sites by ∼13,900–13,600 years ago. Western hemlock dominated under moist and cooler conditions by ∼13,800 years ago in the west and ∼13,200–12,900 years ago in the east as temperatures declined ∼1–2 °C. By ∼12,200 years ago at most sites, moist and increasingly warm conditions resulted in Sitka spruce forest with red alder and western hemlock across most of the region. Diachronous vegetation development may have resulted from an eastward-shifting band of precipitation and oceanic influence as ice retreated inland and climate stabilized at the end of the Pleistocene. We show that varied ecosystems existed across short distances throughout the late-glacial interval on northern Vancouver Island. Furthermore, we corroborate the timing and character of deglacial climatic episodes in the North Pacific Ocean, including Siku Event 1 and the early onset of a mild cooling event which pre-dated North Atlantic Younger Dryas by at least 200-600 years—here assigned the provisional name “Quatsino Event”. Our results demonstrate the importance of understanding regional vegetation and climatic histories at coast-continent interfaces adjacent to major components of global climate such as the North Pacific Ocean when investigating the teleconnections of oceanic and atmospheric systems.</div></div>","PeriodicalId":49644,"journal":{"name":"Quaternary International","volume":"747 ","pages":"Article 109955"},"PeriodicalIF":1.8,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145267065","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}
Quaternary InternationalPub Date : 2025-10-15Epub Date: 2025-08-29DOI: 10.1016/j.quaint.2025.109966
Minkoo Kim , Sohyeon Ahn , Brian Li
{"title":"Peach (Prunus persica) cultivation in ancient Korea: an archaeobotanical examination","authors":"Minkoo Kim , Sohyeon Ahn , Brian Li","doi":"10.1016/j.quaint.2025.109966","DOIUrl":"10.1016/j.quaint.2025.109966","url":null,"abstract":"<div><div>Archaeobotanical research has traditionally prioritized seed-propagated annual crops, with comparatively limited attention given to the cultivation of woody perennial plants. To address this gap, this study examines peach endocarps recovered from Korean archaeological sites to explore the social context of peach cultivation. While peach endocarps are occasionally found at prehistoric sites, evidence for their cultivation in the region before 100 BC remains limited. Although the social conditions necessary for arboriculture—long-term land investment and territoriality—were established at many prehistoric sites, fruit tree cultivation did not emerge until after 100 BC. Peach endocarps from Sinchang-dong (ca. 14 BC–AD 243) exhibit traits indicative of incomplete domestication—elongated and compressed, yet relatively small—suggesting an early cultivation stage or the harvesting of feral forms. In contrast, later peach endocarps are significantly larger, elongated, and compressed, resembling modern cultivars. The inclusion of peaches as burial goods after approximately 100 BC highlights their symbolic values, which potentially facilitated the expansion of peach cultivation across the Korean Peninsula during the first millennium AD.</div></div>","PeriodicalId":49644,"journal":{"name":"Quaternary International","volume":"747 ","pages":"Article 109966"},"PeriodicalIF":1.8,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144912367","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}
Quaternary InternationalPub Date : 2025-10-15Epub Date: 2025-08-29DOI: 10.1016/j.quaint.2025.109956
F.H. Neumann , J. Finch , A. Hahn , C.S. Miller , L. Scott , E. Schefuß , L. Dupont , H.C. Cawthra , F. Engelbrecht
{"title":"Vegetation and climate dynamics in a 16,600-year marine sequence offshore Mozambique in Delagoa Bight, south-eastern Africa","authors":"F.H. Neumann , J. Finch , A. Hahn , C.S. Miller , L. Scott , E. Schefuß , L. Dupont , H.C. Cawthra , F. Engelbrecht","doi":"10.1016/j.quaint.2025.109956","DOIUrl":"10.1016/j.quaint.2025.109956","url":null,"abstract":"<div><div>Few records of long-term vegetation dynamics and climate variability exist from coastal southeastern Africa. This study presents a new high-resolution marine pollen record (GeoB20615-2) from southern Mozambique, spanning the past <em>c.</em> 16,600 years. The chronology is based on a Bayesian age-depth model constructed using twelve radiocarbon dates on marine and terrestrial remains. Prior to <em>c.</em> 15,000 cal BP, pollen from ericaceous shrubs was prevalent, indicating low temperatures, while forest or woodland pollen taxa were minimal or absent. From <em>c.</em> 13,000 cal BP onwards, the record shows a gradual increase in savanna pollen taxa such as <em>Spirostachys</em> and <em>Burkea</em>, suggesting climatic warming. Pollen of <em>Spirostachys,</em> a woodland tree thriving in dry, warm regions, continues to increase into the early Holocene, between <em>c.</em> 11,200 and 9200 cal BP. After <em>c.</em> 9200 cal BP, a decline in <em>Spirostachys</em> pollen corresponds with a rise in <em>Podocarpus</em> pollen during a phase of high sea levels, indicating a potential expansion in coastal and/or montane forests, possibly reflecting increased moisture availability. From <em>c.</em> 3500 cal BP, <em>Podocarpus</em> pollen declines, likely due to more arid conditions, as indicated by a concomitant increase in Chenopodiaceae/Amaranthaceae, Asteraceae, and <em>Spirostachys</em> pollen. The youngest section of the profile is potentially affected by sediment mixing from <em>c.</em> 250 cal BP onwards. The section reveals the impact of European colonialists, with the appearance of neophytic pine pollen, and an increase in indigenous <em>Alchornea</em>, a disturbance indicator. The pollen results are in good agreement with terrestrial palynological records from the Indian Ocean Coastal Belt Biome such as Lake Eteza in northeastern South Africa. The GeoB20615-2 record contributes greater understanding of long-term vegetation dynamics and associated climatic shifts in the Indian Ocean Coastal Belt Biome.</div></div>","PeriodicalId":49644,"journal":{"name":"Quaternary International","volume":"747 ","pages":"Article 109956"},"PeriodicalIF":1.8,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144917351","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}
Quaternary InternationalPub Date : 2025-10-15Epub Date: 2025-09-03DOI: 10.1016/j.quaint.2025.109965
Vinicius Borges Moreira , Luca Lämmle , Mariarca D'Aniello , Fabiano Tomazini Da Conceição , Carlo Donadio , Archimedes Perez Filho
{"title":"The role of Holocene climate dynamics in the modeling of fluviomarine terraces in the northeastern Brazilian coast","authors":"Vinicius Borges Moreira , Luca Lämmle , Mariarca D'Aniello , Fabiano Tomazini Da Conceição , Carlo Donadio , Archimedes Perez Filho","doi":"10.1016/j.quaint.2025.109965","DOIUrl":"10.1016/j.quaint.2025.109965","url":null,"abstract":"<div><div>Fluviomarine terraces comprise mixed sedimentary sequences formed through the interplay of fluvial and marine aggradational morphodynamics. Although they are very common along the vast Brazilian coast, they are currently little explored in the geomorphological literature. In recent official mappings, it is common to observe the classification of the last or predominant event in each sector of the plain, with the discussion of fluviomarine morphologies being little explored. Therefore, this study aims to analyze transitional environments near the Rio Pardo River estuary, located on the northeastern Brazilian coast, within the alluvial-coastal system, which presents complex morphosedimentary archives consolidated during the regressive trend of the Holocene Relative Sea Level. To better understand the genesis, chronology, and vertical sequence that formed these fluviomarine terraces. A morphological description of three stratigraphic profiles exposed on erosive riverbanks was conducted using optically stimulated luminescence dating, sediment grain size characterization, and environmental depositional conditions and pedogenesis process. The results suggest five distinct depositional stages occurred, driven by Holocene climatic variations in the region with close correlation with Bond events and variations of the Intertropical Convergence Zone and South Atlantic Convergence Zone: 1 - Early Holocene ∼10.59 ± 0.85 ka; 2 - Middle Holocene ∼5.30 ± 0.66 ka and 4.57 ± 0.48 ka; 3 - Late Holocene A ∼3.44 ± 0.31 ka; 4 - Late Holocene B ∼2.5 ka; 5 - Modern surface deposits ∼1.93 ± 0.20; 1.59 ± 0.18 and 1.46 ± 0.1 ka. Thus, the fluviomarine terraces analyzed constituted support for the identification of the climatic pulses that occurred in the Holocene along the Brazilian northeast coast.</div></div>","PeriodicalId":49644,"journal":{"name":"Quaternary International","volume":"747 ","pages":"Article 109965"},"PeriodicalIF":1.8,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144933554","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}