Katarína Adameková , Michaela Prišťáková , Nela Doláková , Petr Dresler , Slavomír Nehyba , Pavel Dlapa , Kristína Majorošová , Ivo Světlík
{"title":"Soil-alluvial dynamics, landscape evolution and human activity in the Thaya river floodplain (Czech Republic) from the Late Pleistocene to the Holocene","authors":"Katarína Adameková , Michaela Prišťáková , Nela Doláková , Petr Dresler , Slavomír Nehyba , Pavel Dlapa , Kristína Majorošová , Ivo Světlík","doi":"10.1016/j.qsa.2025.100287","DOIUrl":"10.1016/j.qsa.2025.100287","url":null,"abstract":"<div><div>The development of the Thaya River floodplain has been shaped by interactions between fluvial dynamics, soil formation, and human activity. To better understand these processes, we conducted geoarchaeological research, including sedimentological, micromorphological, geochemical, palynological and chronological analyses of soil-alluvial sequence at Pohansko site spanning from the Late Pleistocene to the present. We identified four distinct soils, each formed during periods of relative landscape stability. Fluvisol 4 developed in the Mesolithic (Early Holocene), when the Thaya River floodplain was dominated by oak-lime-hornbeam forests, showing no evidence of deforestation. Fluvisol 3 formed in the later phase of the Neolithic (Middle Holocene), when the increasing presence of cereals and ruderal taxa suggests agricultural expansion. From the Young/Late Bronze Age to the Early Medieval period (Late Holocene), Fluvisol 2 developed, with a significant reduction of synanthropic plants and an increasing presence of pioneer species during the Bronze Age, indicating limited human activity. A peak in deforestation in the soil corresponds with expansion of the Great Moravian Empire, which is also linked with significant increase in nitrogen-loving herbs. The pollen spectra indicate decline in softwood, pines, ferns, hygrophilous and aquatic plants, while an increase in meadow areas. Geoarchaeological evidence further reveals that the modification of a channel near fortification probably in the same period, potentially serving both as a defensive feature and a source of construction material. While soil development was primarily driven by natural processes outside sandy elevation, further analyses are needed to clarify the relative influence of climate and human activity on floodplain dynamics.</div></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"19 ","pages":"Article 100287"},"PeriodicalIF":2.9,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144654050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bladimir Saldaña , Marco Cisternas , Matías Carvajal , Daniel Melnick , Joaquín Cortés-Aranda , Jean Pierre Francois , Alexandra Carreño , Mario Guerra
{"title":"Paleoseismological evidence of a century of coastal deformation in central Chile: lasting emergence and ongoing submergence","authors":"Bladimir Saldaña , Marco Cisternas , Matías Carvajal , Daniel Melnick , Joaquín Cortés-Aranda , Jean Pierre Francois , Alexandra Carreño , Mario Guerra","doi":"10.1016/j.qsa.2025.100291","DOIUrl":"10.1016/j.qsa.2025.100291","url":null,"abstract":"<div><div>Understanding vertical deformation associated with cycles of great megathrust earthquakes is crucial for assessing coastal hazards and advancing in our knowledge of tectonic processes in subduction zones. However, this requires long datasets that extend beyond the era of space geodesy. Here, we use paleoseismological evidence, including lithological and paleoecological data, from a former coastal lagoon in central Chile to reconstruct land-level changes during the 20th century, spanning two great (M ≥ 8) megathrust earthquakes in 1906 and 1985. Diatom and seed assemblages across an abrupt lithological change from mud to peat recorded a sudden relative sea level (RSL) fall in the early 20th century. This environmental shift correlates with the disappearance of the lagoon between 1904 and 1914 as documented in historical maps, revealing an emergence event most likely associated with ∼0.7 m of coseismic uplift in 1906. For the following eight decades, diatoms suggest relatively stable RSL conditions, implying that the coast remained emerged. This is partially supported by the record of a nearby tide gauge showing relatively stable RSL between 1944 and the mid-1980s. Around the time of the 1985 earthquake, both diatoms and tide gauge records suggest the onset of a gradual RSL rise. The inferred long-term trend aligns with modern GPS measurements showing persistent coastal subsidence since 1997 until today. This multiproxy RSL history reveals a more complex vertical deformation pattern than previosuly assumed in the central Chile subduction zone, with subsidence starting eight decades after sustained post-1906 uplift. Our findings provide key insights into the vertical deformation cycles of great subduction zone earthquakes in central Chile and elsewhere.</div></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"19 ","pages":"Article 100291"},"PeriodicalIF":2.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144865850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Edgar Téllez , Antonio Rodríguez-Hidalgo , Manuel Rodríguez-Almagro , Carmen Núñez-Lahuerta , Andion Arteaga-Brieba , Adrián Pablos , Nohemi Sala
{"title":"Subsistence strategies in the early upper Paleolithic of central Iberia: Evidence from Abrigo de la Malia","authors":"Edgar Téllez , Antonio Rodríguez-Hidalgo , Manuel Rodríguez-Almagro , Carmen Núñez-Lahuerta , Andion Arteaga-Brieba , Adrián Pablos , Nohemi Sala","doi":"10.1016/j.qsa.2025.100297","DOIUrl":"10.1016/j.qsa.2025.100297","url":null,"abstract":"<div><div>Knowledge of early Anatomically Modern Humans settlements in the interior of the Iberian Peninsula remains limited. Traditional perspectives have long assumed that this region, known as the Iberian Plateau, was abandoned after the disappearance of Neanderthals and remained largely uninhabited until the end of the Last Glacial. In contrast, coastal areas have so far been the primary focus of archeological studies, as they are where the majority of known sites are located and where the most research has been conducted on subsistence practices. The recent discovery of the Abrigo de la Malia rock shelter site (Tamajón, Guadalajara) has challenged this paradigm, providing evidence of occupation in Central Iberia during the Aurignacian and Gravettian periods (36,200–26,260 cal BP). This work is focused on the zooarcheological and taphonomic analysis of the Paleolithic faunal assemblage from the Malia rock shelter, aiming to reconstruct the subsistence strategies of the earliest Anatomically Modern Humans inhabiting central Iberia during the early Upper Paleolithic. The results indicate anthropogenic activities focused on the processing of medium- and large-sized ungulates, with carnivores either playing a marginal role. The combined data suggest that the Malia rock shelter was used for short but recurrent occupations, likely by small groups engaged in hunting expeditions. This study highlights the adaptability of these populations who inhabited this region during MIS-3 as they faced severe climatic conditions while exploiting the available environmental resources.</div></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"19 ","pages":"Article 100297"},"PeriodicalIF":2.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144890314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ciara Wanket , Samuel Kodama , Jonas Oppenheimer , Scott Cocker , Emma Steigerwald , Duane Froese , Beth Shapiro , Tamara Pico , Jesse Farmer
{"title":"Converging evidence constrains late pleistocene bering land bridge history","authors":"Ciara Wanket , Samuel Kodama , Jonas Oppenheimer , Scott Cocker , Emma Steigerwald , Duane Froese , Beth Shapiro , Tamara Pico , Jesse Farmer","doi":"10.1016/j.qsa.2025.100292","DOIUrl":"10.1016/j.qsa.2025.100292","url":null,"abstract":"<div><div>The Bering Land Bridge was an important biotic corridor and climatic modifier during the Pleistocene (2.58 million to 11,700 thousand years ago [ka]). Understanding when the land bridge was most recently exposed reveals insights into past climate, the modern distribution of plants and animals, and potential human migration into the Americas. While the timing of the most recent flooding of the land bridge has been constrained to during the last deglaciation, the timing of its most recent exposure before the Last Glacial Maximum (LGM, 26.5–19 ka) is less clear. Here, we combine data from three disciplines— paleoceanography, sea level reconstruction, and terrestrial paleogenomics—to constrain the most recent exposure of the Bering Land Bridge to shortly before the LGM, 30–40 kyr later than previously suggested by comparisons of eustatic sea level reconstructions with the modern Bering Strait Sill depth. These results have implications for understanding the timing and nature of human arrival in the Americas and highlight the importance of interdisciplinary collaboration across paleoclimatology and paleoecology for refining Pleistocene environmental history.</div></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"19 ","pages":"Article 100292"},"PeriodicalIF":2.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144831003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Stoil Chapkanski , Gilles Brocard , Franck Lavigne , Tomy Afrizal , Ella Meilianda , Nazli Ismail , Jędrzej Majewski , Patrick Daly , Benjamin Horton , Adam Switzer , Annika Steuer , Bernhard Siemon , Darusman Darusman , Clément Virmoux , Jean-Philippe Goiran
{"title":"Mid-to late-Holocene fluvial and coastal evolution in the Aceh River delta, Sumatra: effects of sea-level change, sediment supply, wave climate, tectonics and tsunamis","authors":"Stoil Chapkanski , Gilles Brocard , Franck Lavigne , Tomy Afrizal , Ella Meilianda , Nazli Ismail , Jędrzej Majewski , Patrick Daly , Benjamin Horton , Adam Switzer , Annika Steuer , Bernhard Siemon , Darusman Darusman , Clément Virmoux , Jean-Philippe Goiran","doi":"10.1016/j.qsa.2025.100290","DOIUrl":"10.1016/j.qsa.2025.100290","url":null,"abstract":"<div><div>The Aceh River delta, northern Sumatra, is a subject of interest since the coastline was struck, more than any other, by the 2004 Indian Ocean Tsunami, the largest recorded in human history. Thereafter, significant scientific efforts focused on short-term dynamics to address the environmental effects of the tsunami, but the long-term evolution of the delta in this specific context of volcanic eruptions, megathrust earthquakes and tsunami landing, however, remains to be understood.</div><div>This study investigates the subaerial delta, based on shallow sediment borehole stratigraphies and C<sup>14</sup> ages, in order to provide a partial reconstruction of the western and eastern fluvial and coastal evolution over the past 7 ky. It also benefits from comprehensive resistivity maps produced during recent helicopter-borne electromagnetic (HEM) surveys, and from earlier geomorphological mapping.</div><div>By prograding, the delta expanded seaward, exposure to swell increased, and a large strandplain accreted along the eastern delta front from 4 to 1 ky BCE. The delta thus evolved asymmetrically, with higher, tightly-stacked beach ridges in the east, which accreted at ∼6 km<sup>2</sup>/ky. Meanwhile, the Aceh River remained stable, along the western side of the delta, burying the western strandplain under its floodplain. After 0.5 ky BCE, delta progradation increased to ∼14 km<sup>2</sup>/ky, generating low-lying and wider spaced beach ridges to the east. A series of river avulsions between 0.2 ky BCE and 1.6 ky CE shifted the river course from the west to the center of the delta. An asymmetric cuspate promontory grew at 23 km<sup>2</sup>/ky after 0.5 ky in front of the current mouth of the river, projecting 1 km offshore of the current coastline, before undergoing erosion in the past few centuries.</div><div>Here, we discuss which combination of global and local factors, including sea level change, sediment supply, wave climate, tectonics, land use and tsunamis may explain the most salient processes during the growth of the Aceh River delta. Beyond its local interest, this study provides clues for a wider understanding of the complexity of subaerial delta development.</div></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"19 ","pages":"Article 100290"},"PeriodicalIF":2.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144921163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yifan Shu , Kaiheng Hu , Qiyuan Zhang , Shuang Liu , Bo Zhao , Pu Li , Xiaopeng Zhang , Hao Li
{"title":"Formation of an epigenetic gorge following a giant landslide damming in Kyirong River of the central Himalayas","authors":"Yifan Shu , Kaiheng Hu , Qiyuan Zhang , Shuang Liu , Bo Zhao , Pu Li , Xiaopeng Zhang , Hao Li","doi":"10.1016/j.qsa.2025.100298","DOIUrl":"10.1016/j.qsa.2025.100298","url":null,"abstract":"<div><div>In tectonically active mountainous regions, large-scale landslide damming events have profound impacts on long-term fluvial landforms, such as river diversion and formation of epigenetic gorges. Here, we investigate morphometric and sedimentological evidence of an ancient large-scale landslide in the Kyirong River basin located in the central Himalayas. The ancient Kyirong landslide completely blocked the river, causing overtopping at the lowermost part of the dam crest. The river then progressively incised through the landslide deposits and the underlying bedrock, carving out the ∼300-m-deep Kyephu Gorge within the original bedrock valley walls. Unlike the conventional formation of epigenetic gorges, the new river channel of the Kyirong River is located closer to the landslide wall compared to the original channel.This unique formation model is the result of the combined effects of the landslide movement process and the distinctive topography. Through remote sensing image interpretation, field surveys, sediment layer analysis, and geomorphological parameter calculations, this study reconstructs the motion process of the Kyirong landslide and its subsequent effects on the river system. The Kyirong landslide is identified as a late Quaternary event, corresponding to a river incision rate of over 14.2 mm/year. The landslide event has caused significant changes in local geomorphological features, reshaping the evolution of the river. This study provides a specific case, demonstrating that in tectonically active regions, landslide events play a direct role in controlling the evolution of river landforms.</div></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"19 ","pages":"Article 100298"},"PeriodicalIF":2.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145004061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sumaiya Aktar , Mohidar Hossain , Md. Mahmudul Hasan Rakib , Shacin Chandra Saha , Mehedi Hasan Ovi , Dipraj Roy , Arabe Khan , Irteja Hasan , Md Abdullah Salman , Rahat Khan , Muhammad Risalat Rafiq , Dhiman Kumer Roy
{"title":"Geomorphological responses to climate change in the Ganges-Brahmaputra-Meghna Delta: A multi-decadal remote sensing analysis","authors":"Sumaiya Aktar , Mohidar Hossain , Md. Mahmudul Hasan Rakib , Shacin Chandra Saha , Mehedi Hasan Ovi , Dipraj Roy , Arabe Khan , Irteja Hasan , Md Abdullah Salman , Rahat Khan , Muhammad Risalat Rafiq , Dhiman Kumer Roy","doi":"10.1016/j.qsa.2025.100296","DOIUrl":"10.1016/j.qsa.2025.100296","url":null,"abstract":"<div><div>The Ganges-Brahmaputra-Meghna (GBM) Delta represents a major riverine system with limited data availability. This study investigates the morphodynamic behavior of the delta and estuary from 1990 to 2021 by analyzing time-series satellite imagery and comprehensive literature to identify key events and driving factors. The aims of this study are to better understand the geomorphological processes that influence the GBM delta system, identify the physical factors contributing to its formation and, predict future challenges for sustainable development in delta areas. Climatological data (temperature and rainfall) from NASA revealed a rising trend in average annual temperature and fluctuating rainfall patterns across five sites in GBM river system: Sirajganj, Tangail, Rajbari, Chandpur, and Bhola. Cyclone track data were analyzed, and GIS mapping of cyclone intensity and trajectories in the GBM delta was conducted to predict future sustainability challenges. Multi-temporal Landsat imagery from USGS Earth Explorer was analyzed using ArcGIS 10.8 to assess riverbank erosion and accretion. Erosion, accretion, and stable land areas varied across five sites of GBM delta from 1990 to 2020. Sirajgonj and Tangail show major land gains until 2010, followed by severe erosion in 2010–2020, with net losses of −404.33 km<sup>2</sup> and -497.69 km<sup>2</sup>, respectively. Rajbari gained (+234.66 km<sup>2</sup>) land in 2000–2010 but saw a reversal with a −143.75 km<sup>2</sup> loss in the next decade. Chandpur had consistent gains until 2010 but a slight loss (−11.8 km<sup>2</sup>) afterward. Bhola remained the most stable, maintaining continuous net gains, peaking at +76.83 km<sup>2</sup> in 2010–2020. NDVI, NDWI, and NDSI data reveals a river-wise gradient. NDVI peaks along the Brahmaputra/Jamuna and Ganges/Padma floodplains and declines toward the Meghna estuary. NDWI delineates persistent surface water, while NDSI shows seaward-intensifying salinity toward the Meghna, indicating elevated coastal vulnerability.These findings serve as a guideline to clarify cause-and-effect relationships in global climate change and anticipate future challenges to the sustainable development of the delta.</div></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"19 ","pages":"Article 100296"},"PeriodicalIF":2.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144895007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
José S. Carrión , Yolanda Carrión-Marco , Carmen M. Martínez-Varea , Juan Ochando , Cristina Real-Margalef , Manuel Munuera , Gloria Martínez-Sagarra , Gabriela Amorós , Aldara Girona , Diego Angelucci , Jacopo Armellini , Noelia Sánchez-Martínez , Dídac Román , Ignacio Martín-Lerma
{"title":"Cueva del Arco: Paleoecological insights into Paleolithic landscapes","authors":"José S. Carrión , Yolanda Carrión-Marco , Carmen M. Martínez-Varea , Juan Ochando , Cristina Real-Margalef , Manuel Munuera , Gloria Martínez-Sagarra , Gabriela Amorós , Aldara Girona , Diego Angelucci , Jacopo Armellini , Noelia Sánchez-Martínez , Dídac Román , Ignacio Martín-Lerma","doi":"10.1016/j.qsa.2025.100293","DOIUrl":"10.1016/j.qsa.2025.100293","url":null,"abstract":"<div><div>This article presents new data from Cueva del Arco and offers a comprehensive perspective on the palaeoenvironments inhabited by Neanderthals and <em>Homo sapiens</em> in the interior of Murcia, southeastern Spain, during the Mousterian and Gravettian periods. We focus on the ecological structure and floristic composition of prehistoric landscapes, drawing on pollen records from coprolites and cave sediments, as well as charcoal and plant macroremains, particularly seeds. Vertebrate assemblages are discussed through taphonomic and paleoecological lenses. Our results show that the landscapes surrounding Cueva del Arco during MIS 3 underwent only limited changes despite climatic fluctuations, likely buffered by nearby glacial strongholds, such as immediate riverine hydrorefugia and biodiversity reservoirs in the Segura-Cazorla-Alcaraz Mountains. We highlight the coexistence of plant species with currently disparate bioclimatic affinities, suggesting a compression of vegetation belts. Locally, under the edaphic influence of lithosols overlying karstic bedrock, the landscape remained open, with scattered trees or small groves on deeper soils. Notably, Cupressaceae were a dominant feature of the local vegetation and constituted a critical resource for firewood, supporting human adaptation to the environment. In this resilient and ecologically diverse setting, Paleolithic populations had access to a wide variety of plant and animal resources essential for their survival.</div></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"19 ","pages":"Article 100293"},"PeriodicalIF":2.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144865851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Karina Ferreira Chueng , Maria Virginia Alves Martins , Heloisa Helena Gomes Coe , José Antonio Baptista Neto , Arthur Ayres Neto , Egberto Pereira , Denise Lara Terroso , Rubens Figueira , Paulo Alves de Lima Ferreira , Caroline Adolphsson do Nascimento , Amanda Pacheco , Luzia Antolioli , Rodolfo Dino , Renata Cardia Rebouças , Josefa Varela Guerra , Antonio Tadeu dos Reis , João Wagner Alencar Castro , Fernando Rocha
{"title":"Changes in the sedimentary record related to climate oscillations over the last ∼2500 years BP in Guanabara bay (SE Brazil): phytolith records","authors":"Karina Ferreira Chueng , Maria Virginia Alves Martins , Heloisa Helena Gomes Coe , José Antonio Baptista Neto , Arthur Ayres Neto , Egberto Pereira , Denise Lara Terroso , Rubens Figueira , Paulo Alves de Lima Ferreira , Caroline Adolphsson do Nascimento , Amanda Pacheco , Luzia Antolioli , Rodolfo Dino , Renata Cardia Rebouças , Josefa Varela Guerra , Antonio Tadeu dos Reis , João Wagner Alencar Castro , Fernando Rocha","doi":"10.1016/j.qsa.2025.100285","DOIUrl":"10.1016/j.qsa.2025.100285","url":null,"abstract":"<div><div>The study of the record of paleoclimatic oscillations in coastal areas is crucial because it helps us understand past climate changes, how they impacted these vulnerable regions, and draw lessons about what might happen in the future. This study presents the first application of phytolith analysis in a multiproxy paleoenvironmental reconstruction in a coastal marine area in Brazil. It investigates the natural and anthropogenic influences on the evolution of Guanabara Bay (GB), one of the most urbanized regions in Southeastern Brazil. To achieve this, grain size, geochemical, mineralogical, and phytolith data were analyzed on a short piston core. The analysis revealed changes in the continental input of lithogenic materials and variations in the quantity and type of organic matter, linked to alterations in vegetation and sediment supply from the rivers over the last ∼2500 years. The general marine regression may have favored the sediment transfer from the rivers to GB, while the low hydrodynamic regime contributed to the accumulation and preservation of the sedimentary record. Sedimentological changes related to shifts in rainfall patterns and the degree of mineral weathering were observed. Three main phases of dryness have been identified. The earliest was recorded between ∼415 and 50 BC, during the Late Holocene Dry Period (or the Late Holocene Neoglacial Anomaly); the second one was registered between ∼800 and 1300 AD, during the Medieval Climate Anomaly; and the third one happened ∼ between 1550 and 1900 yrs AD, during the Little Ice Age (LIA). These three dryness events have been caused by shifts in the oceanic Intertropical Convergence Zone (ITCZ) and the South Atlantic Convergence Zone (SACZ). Although phytolith analysis has been conducted in a few marine environments, no previous studies have been conducted in Guanabara Bay or Brazilian marine systems. The multiproxy analysis, including phytoliths, enabled the identification of changes in primary vegetation types, changes in rainfall and sediment supply and anthropogenic impacts in Guanabara Bay.</div></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"19 ","pages":"Article 100285"},"PeriodicalIF":2.9,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144331449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Elpiniki-Maria Parparousi , Leonardo Sorbelli , Marco Cherin , Marzia Breda , Alessandro Blasetti , Marco Peter Ferretti , Darío Fidalgo , Saverio Bartolini-Lucenti , Pierre-Élie Moullé , Bienvenido Martínez-Navarro , Lorenzo Rook , Joan Madurell-Malapeira
{"title":"Biochronological and paleobiogeographic implications of the Dama-like deer sample from the latest Early Pleistocene of Cal Guardiola (NE Iberia)","authors":"Elpiniki-Maria Parparousi , Leonardo Sorbelli , Marco Cherin , Marzia Breda , Alessandro Blasetti , Marco Peter Ferretti , Darío Fidalgo , Saverio Bartolini-Lucenti , Pierre-Élie Moullé , Bienvenido Martínez-Navarro , Lorenzo Rook , Joan Madurell-Malapeira","doi":"10.1016/j.qsa.2025.100294","DOIUrl":"10.1016/j.qsa.2025.100294","url":null,"abstract":"<div><div>Different species of <em>Dama</em>-like deer usually included in the genus <em>Pseudodama</em>, occurred in the European Plio-Pleistocene. In this paper, the medium-sized cervid sample from the Cal Guardiola Section (NE Iberian Peninsula) is described. It exhibits notable similarities with other records referred to <em>Pseudodama vallonnetensis</em> from various late Early Pleistocene European sites, thus confirming the abundance of this taxon in the faunal associations of this period. Here, we review the spatial and temporal distribution of <em>P</em>. <em>vallonnetensis</em> in Europe and, in a broader framework, also the succession of <em>Dama</em>-like deer species during the entire Pleistocene, analyzing variations in body size and possible relationships between these and palaeoenvironmental conditions.</div></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"19 ","pages":"Article 100294"},"PeriodicalIF":2.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144903129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}