Quaternary Science Advances最新文献

{"title":"Magnetic polarity stratigraphy of quaternary sediments from Ramganga paleolake, NW Himalaya, India and its paleoenvironmental implications","authors":"M. Venkateshwarlu ,&nbsp;A.V. Satyakumar ,&nbsp;N. Ramesh Babu ,&nbsp;Anoop Kumar Singh","doi":"10.1016/j.qsa.2024.100196","DOIUrl":"https://doi.org/10.1016/j.qsa.2024.100196","url":null,"abstract":"<div><p>Paleomagnetic records from the sediments provide the foundation for studying variations in the geomagnetic field across the geological time sacle. Here, we report a new paleomagnetic data from Quaternary sediments of Ramganga Paleolake, NW Himalaya, India, to provide more insight into the global geomagnetic excursions and paleoenvironmental implications. Paleomagnetic and rock magnetic analyses were performed on a 5 m thick vertical profile of unconsolidated sediments from the Ramganga paleolake (29°46′867″N; 79°14′043″E), located in the Lesser Himalaya at a height of 798 m. One hundred fifty oriented samples from 50 sites (10 cm intervals) were obtained from the vertical section. Extrapolating the optically stimulated luminescence (OSL) dates from literature indicates that the entire section was probably deposited between 38 and 0.8 ka. The rock magnetic data shows that the remanence is carried by a low coercivity mineral and a significant amount of a soft magnetic mineral, most likely magnetite. Virtual Geomagnetic Pole (VGP) latitudes were calculated. Plot of the VGP latitudes against the sample locations from the litho-column allows us for the construction of Magnetic Polarity Stratigraphy (MPS) column. The MPS of the Ramganga paleolake has detected three geomagnetic excursions that are correlated with the global events: the Mono Lake Event (∼28.4-25.8 ka), the Gulf of Mexico Event (∼12.5–17 ka), and the Bagwalipokar Excursion Events (15.5-14.7 ka and 8-2.85 ka) respectively. The lower and middle portion of the paleolake represents the low and high energy depositional environment during the sediment deposition due to wet and arid climatic conditions.</p></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"14 ","pages":"Article 100196"},"PeriodicalIF":4.5,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666033424000340/pdfft?md5=5b7974688072c7140f4106f43dc38495&pid=1-s2.0-S2666033424000340-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140901804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Simulating taphonomic processes on teeth: The impact of sediment pressure and thermal alteration on dental microwear","authors":"Cristian Micó ,&nbsp;Ruth Blasco ,&nbsp;Florent Rivals","doi":"10.1016/j.qsa.2024.100195","DOIUrl":"https://doi.org/10.1016/j.qsa.2024.100195","url":null,"abstract":"<div><p>Dietary reconstructions based on dental microwear methodologies may be limited due to the various taphonomic processes that affect the formation of archaeological deposits. These limitations are primarily affected by two issues: 1) taphonomic alterations occurring over dental microwear patterns which mimic dietary signals and can lead to confusion in quantifying these signals, and 2) the exclusion of teeth due to structural damage caused by taphonomic processes, resulting in a reduction of the sample size. Thus, it is necessary to understand how taphonomic processes impact teeth to avoid biases in dietary reconstructions and improve the validity of their interpretations. Under these considerations, we conducted two experiments: one involving the simulation of sediment pressure, and the other focusing on thermal alterations. A hydraulic press and a muffle furnace were used for these purposes. The results of the experiments allowed us to characterise the alterations produced by abrasion caused by sediment pressure, enabling differentiation from dietary signals (scratches, pits, and gouges) and excluding them from dental microwear analyses. However, the thermal alteration experiment showed that this process does not produce significant effects, and even carbonized teeth retain dental microwear, making them appropriate for dietary reconstructions. Additionally, a comparison of archaeological teeth from level IIIb of Teixoneres Cave (Moià, Barcelona) was conducted, confirming the inferences drawn from the experimental results. This research highlights the importance of conducting such studies to better understand the impact of taphonomic processes on dental microwear, which is crucial for accurate dietary and palaeoecological interpretations.</p></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"14 ","pages":"Article 100195"},"PeriodicalIF":4.5,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666033424000339/pdfft?md5=3c189a331b44cd9565191d090f251292&pid=1-s2.0-S2666033424000339-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140901803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Examining the effects of climate change and human impacts on a high-resolution, late Holocene paleofire record from South Africa's winter rainfall zone","authors":"Stella G. Mosher ,&nbsp;Mitchell J. Power ,&nbsp;Lynne J. Quick ,&nbsp;Torsten Haberzettl ,&nbsp;Thomas Kasper ,&nbsp;Kelly L. Kirsten ,&nbsp;David R. Braun ,&nbsp;J. Tyler Faith","doi":"10.1016/j.qsa.2024.100194","DOIUrl":"https://doi.org/10.1016/j.qsa.2024.100194","url":null,"abstract":"<div><p>Fire is central to the Cape Floristic Region's highly biodiverse and disturbance-adapted Fynbos Biome. However, prehistoric fire regimes, their ecological consequences, and their relationships with large-scale climate drivers and human activities remain poorly understood. Here, we use a high-resolution sedimentary charcoal record from Verlorenvlei, a coastal lake situated on the west coast, to interrogate links between fire, climate, and pastoralism in the Fynbos Biome. Our record has a robust chronology supported by 24 radiocarbon dates and provides a continuous sedimentary sequence spanning the last 4200 years, documenting fire activity before and after the local arrival of pastoralists in the Verlorenvlei area ∼1500 cal years BP. Fire at Verlorenvlei over the last 4200 years is variable, with relatively low activity until ∼2000 cal years BP, after which variable but generally higher fire activity occurs until the highest period of fire activity from ∼1450 to 1800 CE (∼500–150 cal years BP). The increase in fire activity ∼2000 years ago corresponds with a shift in the diatom assemblage at Verlorenvlei from marine towards brackish and freshwater species, reflecting increased precipitation derived from a strengthening of the southern westerly winds. The peak in fire activity beginning ∼1450 CE (∼500 cal years BP), near the onset of the Little Ice Age, tracks a second diatom-inferred strengthening of the westerly winds. Other southern hemisphere and Antarctic records further corroborate this increased westerly influence after ∼2000 years. Linear regression modeling on the fire record indicates that moisture availability is the primary driver of fire at Verlorenvlei, with little evidence that human populations influenced fire. Our reconstruction suggests that fire activity at Verlorenvlei is limited by moisture availability and that wetter conditions facilitate increased vegetation (i.e., fuel) and intensified fire at this otherwise fuel-limited site. This work has implications for management and conservation decisions in response to future predictions of a warmer and drier climate along South Africa's west coast.</p></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"14 ","pages":"Article 100194"},"PeriodicalIF":4.5,"publicationDate":"2024-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666033424000327/pdfft?md5=e95fff01e54e8f49016dc0ddf6e64546&pid=1-s2.0-S2666033424000327-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140909773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Heavily eroded Pleistocene landscape and site-forming processes of the Acheulean artifacts-bearing Holocene sediments, Eastern Desert, Sudan","authors":"Mirosław Masojć ,&nbsp;Ju Yong Kim ,&nbsp;Hyeon-Seon Ahn ,&nbsp;Jin Cheul Kim ,&nbsp;Youn Soo Lee ,&nbsp;Young Kwan Sohn ,&nbsp;Grzegorz Michalec ,&nbsp;Ahmed Nassr","doi":"10.1016/j.qsa.2024.100193","DOIUrl":"https://doi.org/10.1016/j.qsa.2024.100193","url":null,"abstract":"<div><p>Since the Middle Pleistocene, the Sahara region has undergone strong environmental changes resulting from climate changes. Dry periods, constituting an ecological barrier to human presence, alternated with wet periods when the Sahara area was covered with green savanna and an extensive network of watercourses, allowing the area to be occupied by hunter-gatherer groups. Responding to the Quaternary climatic changes, hominin dispersal was channeled through vegetated corridors. Such evidence for human settlements connected to Pleistocene green corridors in the Sahara region has been discovered in the research area called EDAR (Eastern Desert Atbara River). This area comprises a cluster of Acheulean and Middle Stone Age (MSA) sites discovered in the fluvial sedimentary context. This manuscript discusses the occurrence of Middle Pleistocene Acheulean artifacts in much younger sediments documented at the site EDAR 6. These Acheulean artifacts are present within thick Holocene calcareous sandy silts formed between 2.7 ka and 8.7 ka based on an optically stimulated luminescence (OSL) chronology, which is also supported by paleomagnetic analysis. The stone gravelly artifacts mantled above the eolian deposits have been known in other Paleolithic sites under the desert environment of Northern Africa. We propose that the relocation of the Palaeolithic artifacts was due to long-lasting erosional and redepositional processes affecting the Acheulean artifacts-bearing sediments since the Middle Pleistocene. We interpret that the cumulative results of the two processes, i.e., the gravel framework dilation and the gravel overpassing, allowed the stone artifacts to be exposed at the surface or incorporated in the Holocene sediment layers.</p></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"14 ","pages":"Article 100193"},"PeriodicalIF":4.5,"publicationDate":"2024-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666033424000315/pdfft?md5=a3ccc7f80b1d0f52a7bf1a5b82d8c1a5&pid=1-s2.0-S2666033424000315-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140879196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unveiling 4500 years of environmental dynamics and human activity at Songo Mnara, Tanzania","authors":"Apichaya Englong ,&nbsp;Paramita Punwong ,&nbsp;Tosak Seelanan ,&nbsp;Rob Marchant ,&nbsp;Stephanie Wynne-Jones ,&nbsp;Akkaneewut Jirapinyakul ,&nbsp;Jeffrey Fleisher","doi":"10.1016/j.qsa.2024.100192","DOIUrl":"https://doi.org/10.1016/j.qsa.2024.100192","url":null,"abstract":"<div><p>Coastal East Africa has undergone massive transformations through the Late Holocene, with a combination of changes in sea level, increasing human settlement, and ensuing use of coastal resources. A comprehensive multi-proxy analysis, including pollen, phytolith, charcoal, stratigraphy, particle size, and geochemical data from sedimentary cores extracted from mangrove ecosystems combined with soils from archaeological contexts, provided valuable insights into vegetation dynamics, environmental changes, and human interactions within the mangrove ecosystem of Songo Mnara Island, Tanzania over the last 2590 BCE (4540 cal yr BP). The bottommost layers indicate a lack of vegetation<strong>,</strong> as deduced from the presence of coral rags and high calcium and carbonate content, possibly due to high mid-Holocene sea-level. Evidence of mangrove taxa suggests a decrease in sea level, enabling the establishment of mangroves from around 2590 BCE. A brief period of sea-level rise occurred between 90 BCE and 320 CE before sea-level fell until 1570 CE. Significant evidence of human activity is recorded from around 1400 CE indicated by increased charcoal, crop phytoliths, and evidence of marine resource utilisation. The timing of this human-environment interaction is also linked to the time of lower sea level. However, there was evidence suggesting human abandonment of the island from around 1500 CE. This coincided with a subsequent rise in sea levels and potentially prolonged drought conditions spanning from 1570 to 1700 CE. These factors likely contributed to a shortage of food resources in the area, impacting both agricultural practices due to the scarcity of natural freshwater and the accessibility of marine food resources. From 1700 CE to the present, fluctuations in sea level have been observed, with a signal of recent sea-level rise in tandem with shifts in mangrove, terrestrial herbaceous taxa and fire activity.</p><p>The low sedimentation rates within mangrove areas suggest that the mangroves on Songo Mnara Island may not keep pace with the current rate of sea-level rise.</p></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"14 ","pages":"Article 100192"},"PeriodicalIF":4.5,"publicationDate":"2024-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666033424000303/pdfft?md5=a71068fc523cba30468eddb79a943484&pid=1-s2.0-S2666033424000303-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140879043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Landscape evolution and hydrology at the Late Pleistocene archaeological site of Narabeb in the Namib Sand Sea, Namibia","authors":"Abi Stone ,&nbsp;George Leader ,&nbsp;Dominic Stratford ,&nbsp;Theodore Marks ,&nbsp;Kaarina Efraim ,&nbsp;Rachel Bynoe ,&nbsp;Rachel Smedley ,&nbsp;Andrew Gunn ,&nbsp;Eugene Marais","doi":"10.1016/j.qsa.2024.100190","DOIUrl":"https://doi.org/10.1016/j.qsa.2024.100190","url":null,"abstract":"<div><p>The Namib Sand Sea (NSS) in Namibia is known to preserve a wide variety of Pleistocene-age archaeological sites. However, few Middle Stone Age (MSA) sites in this region have been systematically investigated and basic questions around chronology and technological organization remain open. Here we examine Narabeb, an open air MSA surface site exposed in an interdune pan, ∼30 km into the northern NSS. Narabeb was first documented in the 1970s, and then re-examined in 2021 and 2022 by members of this team. Lithic technological analysis combined with a geomorphological description of the site, palaeoenvironmental interpretation of fine-grain water-lain sediments, and luminescence ages from northern and southern locations on the Narabeb pan provide some of the first understanding of human-environmental interactions and estimates of chronology from the later-Middle and Late Pleistocene in the NSS. In addition, we apply a quantitative approach to aeolian linear dune accumulation and extension to explore possible scenarios for landscape development at this site, in order to better understand the former water course(s) affecting the area. The new chronology suggests this site contained standing water at, or just after, the MIS 7/6 transition, and again at, or just after, the end of MIS 6 into early MIS 5. The timing of greater phases of water availability have some overlap with the speleothem growth record at Rössing Cave, situated ∼90 km north of the NSS (and ∼135 km north of Narabeb). Our results provide the foundation for larger, regional-scale analyses of early human adaptive strategies in this unique environment within Southern Africa.</p></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"14 ","pages":"Article 100190"},"PeriodicalIF":4.5,"publicationDate":"2024-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666033424000285/pdfft?md5=0be1f10aedb89c24c7a851b12ebe91c1&pid=1-s2.0-S2666033424000285-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140879041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hybridizing genetic random forest and self-attention based CNN-LSTM algorithms for landslide susceptibility mapping in Darjiling and Kurseong, India","authors":"Armin Moghimi ,&nbsp;Chiranjit Singha ,&nbsp;Mahdiyeh Fathi ,&nbsp;Saied Pirasteh ,&nbsp;Ali Mohammadzadeh ,&nbsp;Masood Varshosaz ,&nbsp;Jian Huang ,&nbsp;Huxiong Li","doi":"10.1016/j.qsa.2024.100187","DOIUrl":"https://doi.org/10.1016/j.qsa.2024.100187","url":null,"abstract":"<div><p>Landslides are a prevalent natural hazard in West Bengal, India, particularly in Darjeeling and Kurseong, resulting in substantial socio-economic and physical consequences. This study aims to develop a hybrid model, integrating a Genetic-based Random Forest (GA-RF) and a novel Self-Attention based Convolutional Neural Network and Long Short-term Memory (SA-CNN-LSTM), for accurate landslide susceptibility mapping (LSM) and generate landslide vulnerability-building map in these regions. To achieve this, we compiled a database with 1830 historical data points, incorporating a landslide inventory as the dependent variable and 32 geo-environmental parameters from Remote Sensing (RS) and Geographic Information Systems (GIS) layers as independent variables. These parameters include features like topography, climate, hydrology, soil properties, terrain distribution, radar features, and anthropogenic influences. Our hybrid model exhibited superior performance with an AUC of 0.92 and RMSE of 0.28, outperforming standalone SA-CNN-LSTM, GA-RF, RF, MLP, and TreeBagger models. Notably, slope, Global Human Modification (gHM), Combined Polarization Index (CPI), distances to streams and roads, and soil erosion emerged as key layers for LSM in the region. Our findings identified around 30% of the study area as having high to very high landslide susceptibility, 20% as moderate, and 50% as low to very low. The vulnerability-building map for 244,552 building footprints indicated varying landslide risk levels, with a significant proportion (27.74%) at high to very high risk. Our model highlighted high-risk zones along roads in the northeastern and southern areas. These insights can enhance landslide risk management in Darjeeling and Kurseong, guiding sustainable strategies for future damage qualification.</p></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"14 ","pages":"Article 100187"},"PeriodicalIF":4.5,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S266603342400025X/pdfft?md5=e9d71433e3d787ef274104df0e5cd2df&pid=1-s2.0-S266603342400025X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140632800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Contemporary movement of rock glaciers in the La Sal and Uinta Mountains, Utah, USA","authors":"Jeffrey S. Munroe ,&nbsp;Alexander L. Handwerger","doi":"10.1016/j.qsa.2024.100188","DOIUrl":"https://doi.org/10.1016/j.qsa.2024.100188","url":null,"abstract":"<div><p>Rock glaciers are common landforms in mountainous areas of the western US. The motion of active rock glaciers is a key indicator of ice content, offering connections to climate and hydrologic systems. Here, we quantified the movement of six rock glaciers in the La Sal and Uinta Mountains of Utah through repeat differential GPS surveying. Networks of 10–41 points on each rock glacier were surveyed in September 2021; July 2022; September 2022; and July 2023. We found that all features are moving with average annual rates of motion from 1.5 ± 0.8 to 18.5 ± 7.5 cm/yr. Rock glaciers move up to 3× faster in the summer than in the winter, and rates of motion were greater in 2023 after a winter with above-average snowfall, emphasizing the role of liquid water availability. Velocities of individual points in the winter of 2021–22 are positively correlated with velocities during the winter of 2022–23, suggesting that spatial variability of motion is not stochastic, but rather reflects internal properties of each rock glacier. Bottom temperature of snow measurements during winter, and the temperature of springs discharging water in summer, suggest that these rock glaciers contain modern permafrost. Radiocarbon data document advance of one rock glacier during the Little Ice Age. Our GPS dataset reveals complicated patterns of rock glacier movement, and the network of survey points we established will be a valuable baseline for detecting future cryosphere change in these mountains.</p></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"14 ","pages":"Article 100188"},"PeriodicalIF":4.5,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666033424000261/pdfft?md5=e7aa15d839ade4fb96fce292813836b0&pid=1-s2.0-S2666033424000261-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140548233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Landslide susceptibility modelling in the Doda Kishtwar Ramban (DKR) region of Jammu and Kashmir using Remote Sensing and Geographic Information System","authors":"Ajay Kumar Taloor,&nbsp;Abid Abraham,&nbsp;Gurnam Parsad","doi":"10.1016/j.qsa.2024.100189","DOIUrl":"https://doi.org/10.1016/j.qsa.2024.100189","url":null,"abstract":"<div><p>The present study represents a significant understanding, employing cutting-edge Remote Sensing (RS) and Geographic Information System (GIS) technologies by conducting a comprehensive landslide susceptibility modelling in the Doda, Kishtwar, and Ramban (DKR) districts of the Union Territory of the Jammu and Kashmir in the NW Himalaya. The primary objective of this study is to determine the areas that are at high risk of landslides and accordingly classified these risk zones into five distinct categories, ranging from very high (VH) to very low (VL) susceptibility. To achieve this, a multifaceted approach, involving the utilization of various terrain thematic layers in the GIS environment was applied. The preferred framework employed in this study is the Weighted Overlay (WO) analysis. The final outcome of the study is the final landslide susceptibility map which is a significant and valuable resource for a wide range of stakeholders, including decision-makers, land managers, and local communities. It equips these stakeholders with the information and insights required to adopt proactive strategies in response to the identified landslide susceptibility zones.</p></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"14 ","pages":"Article 100189"},"PeriodicalIF":4.5,"publicationDate":"2024-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666033424000273/pdfft?md5=9198c6b76a153544d158c39cd53eaf12&pid=1-s2.0-S2666033424000273-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140607062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Explosive volcanic activity in Central-Southern Italy during Middle Pleistocene: A tale from tephra layers of the Acerno basin","authors":"C. Pelullo ,&nbsp;I. Arienzo ,&nbsp;M. D’Antonio ,&nbsp;B. Giaccio ,&nbsp;R.S. Iovine ,&nbsp;N. Leicher ,&nbsp;D.M. Palladino ,&nbsp;M. Petrelli ,&nbsp;P. Petrosino ,&nbsp;E. Russo Ermolli ,&nbsp;G. Sottili ,&nbsp;F. Totaro ,&nbsp;G. Zanchetta","doi":"10.1016/j.qsa.2024.100186","DOIUrl":"https://doi.org/10.1016/j.qsa.2024.100186","url":null,"abstract":"<div><p>The cored succession of the Acerno basin, a tectonic palaeolake located in the southern Apennines (Italy), represents a key point of the Italian tephrostratigraphic network for the Quaternary. Trace element and isotope (⁸⁷Sr/⁸⁶Sr and ¹⁴³Nd/¹⁴⁴Nd) data have been acquired on bulk rock, glassy groundmass and separated minerals (feldspar and pyroxene phenocrysts) from twenty-one tephra layers, dated between ∼570 and 470 ka, embedded in the lacustrine sediments of the basin. The already available major element compositions have been here combined with the newly acquired data. The whole dataset provides a full geochemical characterization of the tephra that strengthens and improves previous attempts to identify their volcanic sources and potential correlatives. In this context, several previously proposed correlations among distal archives have been here confuted. The geochemical fingerprints highlight that the volcanic record preserved in the Acerno lacustrine succession can be attributed to the explosive activity of the Roccamonfina, Colli Albani, Sabatini, Pontian islands (Latium region, Central Italy) and the Neapolitan Volcanic Area (Campania region, South Italy), providing new insights to enhance the current knowledge on the Middle Pleistocene volcanic record in Italy. Moreover, tephra attributions suggest still unknown eruptive activity of such volcanoes during the Quaternary. From this perspective, our study testifies how difficult it is to precisely correlate different geological archives even in a very short time interval. Such a difficulty arises from a large number of volcanic events concentrated in a relatively short time span, with products of similar chemical composition, and from the incomplete characterization of the successions in proximal outcrops. A thorough reconstruction of the eruptive history of these volcanic complexes requires a wider and denser study of distal archives, alongside further investigations in proximal areas.</p></div>","PeriodicalId":34142,"journal":{"name":"Quaternary Science Advances","volume":"14 ","pages":"Article 100186"},"PeriodicalIF":4.5,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666033424000248/pdfft?md5=4ace76eed78925db62021e3349e82952&pid=1-s2.0-S2666033424000248-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140542645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}