Evolving Earth最新文献

{"title":"Integrated geochronological and chemostratigraphic study of middle Miocene strata (Ogallala Group) at the eastern margin of the North American Great Plains","authors":"Jon J. Smith ,&nbsp;R.M. Joeckel ,&nbsp;Holly L. Field ,&nbsp;Greg A. Ludvigson ,&nbsp;Andreas Möller ,&nbsp;Anthony L. Layzell ,&nbsp;Shane T. Tucker","doi":"10.1016/j.eve.2024.100050","DOIUrl":"10.1016/j.eve.2024.100050","url":null,"abstract":"<div><div>Global and regional shifts in climate and environmental conditions during the Miocene gradually gave rise to the grassland biomes that now dominate the modern North American Great Plains. Strata comprising the Ogallala Group provide critical information for understanding these transitions. Geologic mapping and scientific drilling at the eastern edge of the Ogallala Group in northeastern Nebraska, reveal a basal, pedogenically modified siltstone-dominated interval that was hitherto barely known and never firmly placed in a regional stratigraphic context. Herein, we distinguish this basal siltstone unit of the Ogallala Group in the eastern Niobrara River Valley from the overlying sand-dominated strata of the Valentine Formation on the basis of lithologic characteristics, trends in organic-carbon δ¹³C chemostratigraphic profiles, and U-Pb dating of detrital zircons. This siltstone unit bears some similarities to the middle Miocene Fort Randall Formation in its type area, which lies ∼75 km to the northwest in the Bijou Hills of South Dakota. Organic δ¹³C chemostratigraphic profiles generated from outcrops and cores of the basal siltstone in Nebraska indicate that the study area consistently had C₃-dominated paleofloras while it was deposited, presumably in the middle Miocene. The youngest detrital zircons from the siltstone-dominated unit were probably deposited directly onto ancient landscapes by supervolcanic airfall events originating some 1500 km to the west near the intersection of the boundaries of present Oregon, Nevada, and Idaho. These youngest zircons yield a maximum depositional age of ∼15 Ma. This age is in general agreement with the Barstovian (Ba2) mammal biostratigraphic age of the Fort Randall Formation in South Dakota. It is also significantly older than the ∼13 Ma youngest single grain zircon we recovered from sands of the overlying Valentine Formation. Thus, we propose that our integrated geochronologic and chemostratigraphic approach can date Late Cenozoic strata with constraints on the order of 1 m.y., portending broad applicability of our methods in reducing the uncertainties in dating terrigenous sediments in continental basins.</div></div>","PeriodicalId":100516,"journal":{"name":"Evolving Earth","volume":"3 ","pages":"Article 100050"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143097469","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":"Genesis, classification, tectonic setting and economic potential of global granitic pegmatites: A review","authors":"P.L. Dharmapriya ,&nbsp;D.W.M. Disanayaka ,&nbsp;H.M.T.G.A. Pitawala ,&nbsp;Sanjeewa P.K. Malaviarachchi ,&nbsp;N.D. Subasinghe","doi":"10.1016/j.eve.2025.100059","DOIUrl":"10.1016/j.eve.2025.100059","url":null,"abstract":"<div><div>Granitic pegmatites have attracted a significant interest of petrologists and mineralogists due to their complex genetic characteristics and substantial economic value. Although numerous reviews addressed specific aspects such as genesis, classification, economic potential, and tectonic setting, a comprehensive review integrating all these facets in a single article has been lacking. This study fills that gap by offering a holistic review that synthesizes these key dimensions. It examines prevailing theories on pegmatite genesis, traces the evolution of classification systems, and assesses the economic importance of pegmatites as sources of industrial minerals, strategic metals, and gemstones, as well as their association with different tectonic settings.</div><div>The crystallization of the majority of granitic pegmatites is widely acknowledged to occur in the presence of a viscous, volatile-rich polymerized silicate magma, concomitant with supercritical aqueous fluids. Consequently, granitic pegmatites can frequently be conceded as a hybrid rock derived through igneous and hydrothermal processes. Various criteria, such as the emplacement depth of granitic pegmatites, their association with metamorphism and granitic plutons, geochemical signatures, and their relationships with host rocks, have traditionally been employed for the classification of granitic pegmatites. However, none of the classifications has been accepted unequivocally.</div><div>Pegmatitic melt is often rich in chemical constituents (including volatiles) that are incompatible in common rock-forming minerals. In addition to rare earth elements, pegmatites are commonly enriched in rare elements such as Li, B, Be, Cs, and Ta. Because they are incompatible in common rock-forming minerals, these elements tend to create specific mineral phases that can host themselves. As a result, the concentration of trace elements such as Li, B, Cs, Ta, and Bi in these bodies are enriched to levels as high as a thousand times higher than the typical crustal abundance.</div><div>Granitic pegmatites encompass a diverse array of economic commodities, serving as repositories for industrial minerals and sources for strategic metals like Ta, Cs, Sn, Nb, Be, Sb, W, Co, and rare earth elements. Furthermore, they contribute as reservoirs of fluxing components, including Li, P, F, and B, while serving as sources of precious and semi-precious gemstones and some radioactive minerals. The global distribution of pegmatite ages suggests a linkage between the age of pegmatite formation and supercontinent assembly. The Li, Ce and Ta enriched (LCT) granitic pegmatites form part of the orogenic suites associated with crustal shortening in zones of subduction and instances of continental collision. The Nb, Y, and F-enriched (NYF) pegmatites are mainly interpreted as products of anorogenic suites and formed mainly in extensional settings.</div></div>","PeriodicalId":100516,"journal":{"name":"Evolving Earth","volume":"3 ","pages":"Article 100059"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143521208","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":"Charting the test carbonate content of common late Maastrichtian planktic foraminifera morphotypes","authors":"Kebenle Kesen ,&nbsp;Megh Kanvinde ,&nbsp;Anup Kumar Shahi ,&nbsp;Kumar Hemant Singh ,&nbsp;Jahnavi Punekar","doi":"10.1016/j.eve.2025.100069","DOIUrl":"10.1016/j.eve.2025.100069","url":null,"abstract":"","PeriodicalId":100516,"journal":{"name":"Evolving Earth","volume":"3 ","pages":"Article 100069"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143912858","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}

{"title":"First population analysis in Hadrosauroid dinosaurs (Ornithopoda: Iguanodontia: Hadrosauroidea)","authors":"Francisco Javier Jiménez-Moreno ,&nbsp;Angel Alejandro Ramírez-Velasco ,&nbsp;Patricio Ocampo-Cornejo ,&nbsp;Jorge Velázquez-Castro ,&nbsp;Rodolfo Palomino-Merino","doi":"10.1016/j.eve.2025.100072","DOIUrl":"10.1016/j.eve.2025.100072","url":null,"abstract":"<div><div>The study of biological population densities through direct measurements is one of the pillars of modern ecology; however, it does not apply to extinct fauna without modern extant representatives, as is the case with non-avian, plant-eating dinosaurs such as the Hadrosauroidea. On the other hand, mathematical models of population dynamics have also been used to estimate population density without the need for direct measurements. These models, however, require knowledge of population shift rates that are typically obtained through diverse observations. This presents a certain limitation for the use of such models when applied to extinct populations. Still, through the use of ecological analogies, it is possible to estimate population dynamics in extinct faunas. This work, utilizing a differential equation-based population dynamics model, estimates the population density of six species and two specimens of hadrosauroids recorded in Mexican territory, employing ungulate mammals as ecological analogues. The results show that individuals with low body mass, such as Huehuecanahutlus tiquichensis, had a higher average density of 0,69 individuals per square kilometer. For hadrosauroids with higher body mass, such as <em>Magnapaulia laticaudus</em> and the specimen PASAC-1, their population density would be around 0.13 to 0.17 individuals per square kilometer. The inference shows the possible existence of temporal shifts in population density. Maximum and minimum ranges were found due to scenarios of high food productivity or alimentary stress. The former infers a negative correlation between a higher body mass/lesser population density.</div></div>","PeriodicalId":100516,"journal":{"name":"Evolving Earth","volume":"3 ","pages":"Article 100072"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144632000","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}

{"title":"Assessment of LULC dynamics and its association with LST distribution and NDVI Using Geospatial approaches in Karnataka state, India","authors":"Arpitha M.,&nbsp;Harishnaika N.,&nbsp;S.A. Ahmed","doi":"10.1016/j.eve.2025.100076","DOIUrl":"10.1016/j.eve.2025.100076","url":null,"abstract":"<div><div>Monitoring land use and land cover (LULC), which changes at regional levels, is required for many kinds of applications, including monitoring of landslides, drought, flood, land erosion, agricultural planning for land, and climate change studies. The MODIS, Landsat-8, and Sentinel 2A satellite data are used for this investigation to extract the LULC, LST (Land Surface Temperature), and NDVI (Normalized Difference Vegetation Index) from 2015 to 2022. The LULC is performed using an advanced Google Earth Engine (GEE) tool that extracts LULC classes with specific training points of LULC classes. The two main machine learning approaches used for generating the LULC maps are Random Forest (RF) and Support Vector Machine (SVM). The Agricultural land (67.70 %), fallow land (1.76 %), forest land (20.04 %), built-up land (2.58 %), water bodies (5.95 %), waste land (6.78 %), and others (1.17 %) make up the majority of the study area in this class. In 2022, the largest occupied agricultural land area will be approximately 128615.8 km² compared to other classes. The NDVI and LST are the key indices to evaluate the vegetation and temperature (both seasonal and annual) of the region; these parameters are connected with LULC to study regional-level changes. The LST highest is in highest in 2021 is about 335.36 K (62.24 °C), and the lowest recorded in 2019 is 291.27 K (18.12 °C). The NDVI Value is higher in the South West monsoon season, especially in the Western Ghats, and the lowest record is in the north east part of Karnataka. This study is highly useful for the management of semi-arid regions, LULC categorization, forest ecosystem, environmental preservation, sustainable agriculture, controlled development, water shortage, and water management programs in the state.</div></div>","PeriodicalId":100516,"journal":{"name":"Evolving Earth","volume":"3 ","pages":"Article 100076"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145120844","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}

{"title":"Multivariable modelling and carbon stored estimation in peatland: Constraints from peat properties, organic petrology, and remote sensing analysis in the Kapuas Wetland, Indonesia","authors":"Ferian Anggara ,&nbsp;Alfu Afkar Anniffari ,&nbsp;Muhammad Nicco A'raaf Al Danny ,&nbsp;Aldian Fahrialam ,&nbsp;Gayatri Indah Marliyani ,&nbsp;Agung Setianto ,&nbsp;Aulia Agus Patria","doi":"10.1016/j.eve.2025.100080","DOIUrl":"10.1016/j.eve.2025.100080","url":null,"abstract":"<div><div>Carbon stores in peatlands are correspondence of peat distribution and amount of total carbon; however, various interacting factors are involved affecting this process seem to be more complicated and difficult to generalize. This study improved the estimation of the amount of carbon stored in Kapuas Wetland, West Kalimantan using combined remote sensing analysis (UAV, Landsat 8 and 9 imageries and DEM) constraints with <em>in-situ</em> peat thickness measurements, peat properties and organic petrology. We demonstrated a novel finding on distribution and topography of domed peatland as well as their recent conditions: pristine and altered peatlands. Two types of peats were identified, sapric and hemic peats. Peat types correspond to their properties and control the amount of total carbon. The total carbon stored in the Kapuas Wetland contributes to a carbon pool of 221.08 MtC. The difference between two multivariable modelling approaches: a) elevation and peat types-based model, and b) peat thickness and river-based model in this study is only 1.59 %, showing a good level of precision, while single variable modelling approach shows difference around 6.42 %–8.14 %, compared to multivariable modelling approaches. Thus, this study presents an estimated modelling error of ±7 %, making total carbon stored ranging from 205.6 MtC – 236.56 MtC, with 221.08 MtC as the best estimation. Our study suggests that each peat type has unique characteristics in both physical, chemical and biological properties of the peat. These differences will influence the amount of carbon, which should be considered for estimating the amount of carbon stored.</div></div>","PeriodicalId":100516,"journal":{"name":"Evolving Earth","volume":"3 ","pages":"Article 100080"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145227111","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}

{"title":"Response of tropical rainforest to warming during Middle Eocene Climate Optimum (MECO): Evidence from palynological record from the Bartonian deposits of Kutch Basin, Western India","authors":"Nazim Deori ,&nbsp;Poonam Verma ,&nbsp;Shailesh Agrawal ,&nbsp;M.G. Thakkar ,&nbsp;J.M. Patel","doi":"10.1016/j.eve.2025.100065","DOIUrl":"10.1016/j.eve.2025.100065","url":null,"abstract":"<div><div>The Middle Eocene Climatic Optimum (MECO), at ∼40 Ma, is considered a transient global hyperthermal event that superimposed the long-term cooling phase of the middle to late Eocene. The event is largely construed from the marine province but less in the continental depositional systems. The present palynological and isotopic study from the age-constrained Harudi Formation succession of the Kutch Basin, Western India, aims to understand the impact of MECO warming on Eocene tropical rainforest and environments. The carbon isotopic characterization (δ¹³C values) of the studied succession exhibited a pronounced negative Carbon Isotope Excursion (CIE) of about 2.5 ‰, correlated to the peak warming phase of the MECO event. The middle Eocene climate was warm and wet, as indicated by the existence of a diverse array of tropical flora in the region. Notably, the peak warming MECO phase is characterized by the infringement of deciduous elements, indicating the seasonality in rainfall pattern. The subdued mangrove community is also a testimony to salinity fluctuations in the depositional system due to intermittent surges of fresh-water flux. During the recovery phase after the peak warming, the evergreen flora restored in tropical rainforests and mangroves flourished under relatively stable environmental conditions. However, the diversity patterns show an overall decline in diversity. On a wider perspective, the study demonstrates the sensitivity of the tropical rainforests and mangrove communities in response to fluctuating environmental conditions during the high atmospheric CO₂ levels and increased temperatures of MECO.</div></div>","PeriodicalId":100516,"journal":{"name":"Evolving Earth","volume":"3 ","pages":"Article 100065"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143851846","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}

{"title":"Using estuarine cores to assess changes in terrestrial-sediment loss and eutrophication in New River Estuary, Southland, New Zealand","authors":"Danielle J. Brown ,&nbsp;Clinton W.F. Rissmann ,&nbsp;Nick Ward ,&nbsp;Matthew I. Leybourne","doi":"10.1016/j.eve.2025.100078","DOIUrl":"10.1016/j.eve.2025.100078","url":null,"abstract":"<div><div>The New River Estuary (NRE) in Southland, New Zealand, has undergone rapid eutrophication, with rapidly declining ecosystem health, and is one of the most impacted estuaries in New Zealand by changes in land use over the last several decades. Three sediment cores from the highest and finest-grained sedimentation areas of the NRE, the Waihopai Arm and Daffodil Bay, were chosen for geochemical and isotopic characterization (major elements, nutrients, and trace elements; C, N, and S stable isotopes; and ⁷Be, ¹³⁷Cs, ²¹⁰Pb, ²²⁶Ra, and ²²⁸Ra), to assess changes in the rate of sediment, nutrient, and heavy metal accumulation. The sedimentation rate in the upper Waihopai Arm has increased from 7.3 to 13 mm yr⁻¹ before 1935 to 20–22 mm yr⁻¹ from 2009 to 2017. The lower Waihopai Arm and Daffodil Bay have experienced increased sedimentation rates in the last decade from 5.9 to 17.5 mm yr⁻¹ and 5.5–7 to 10.3 mm yr⁻¹, respectively. Phosphorus and trace metal concentrations in the bioavailable sediment fraction (defined as extracted by a modified aqua regia digestion), which includes Fe- and Mn-oxide minerals, sulfide, readily oxidized organic-bound, or surface-adsorbed phases, have increased up to three to eight times higher than geogenic levels, which heightens vulnerability to metal mobilization in response to changes in salinity and redox state of the estuary. Increasing heavy metals and decreasing calcium loads, coupled with carbon- and nitrogen-isotopic values trending toward a terrestrial signature (<em>δ</em>¹³C = −28 ‰, <em>δ</em>¹⁵N = 8 ‰), delineates a transition in sediment source from marine-dominated (pre-1935) to terrestrial-dominated (post-1985). The composition of fallout radionuclides also indicates a change in the delivery of terrestrial sediment from channel bank collapse and subsoil erosion (pre-1965) to sheet erosion of surface, likely pasture, soils (post-1997). The recent (post-1984) agricultural intensification and a shift in primary land use from sheep to dairy farming have increased the fine-sediment and associated pollutant loss to the catchment. This study highlights the importance of differentiating the natural sediment signatures from the anthropogenic sources of pollutants to assess the proportion of low-quality sediment (i.e., high nutrient and/or metal concentration). Targeting anthropogenic sources of sediments may include the use of conservation tillage, direct drilling, vegetative buffers around areas of intensive grazing, sediment traps, and treatment wetlands.</div></div>","PeriodicalId":100516,"journal":{"name":"Evolving Earth","volume":"3 ","pages":"Article 100078"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145104665","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}

{"title":"Biomarkers in terrestrial organic matter from the Lower Devonian to Oligocene: Evidence from selected regions of the laurasian supercontinent","authors":"Olumuyiwa T. Akinsanpe ,&nbsp;Adebola O. Akinsanpe ,&nbsp;Thomas S. Daniya ,&nbsp;Solomon A. Adekola ,&nbsp;Fadiya L. Suyi ,&nbsp;Adebambo B. Adenyi ,&nbsp;Konwea I. Charles","doi":"10.1016/j.eve.2025.100079","DOIUrl":"10.1016/j.eve.2025.100079","url":null,"abstract":"<div><div>Biomarkers are chemical fossils which are valuable in organic matter provenance determination, and higher plant specific biomarkers could be utilised to deduce the precursor higher plants sources and their evolution through geological time. Twenty (20) selected rock samples from different areas within the Laurasian Supercontinent, including plant fossils of Lower Devonian to Oligocene Period from Canada, Germany, Northern Ireland, and the United Kingdom were examined for their record of aliphatic and aromatic biomarkers specific to higher plants. This aims to determine land plant-derived molecular compounds and its variations within the studied ages, as well as attribute biomarkers to different plant contributors. Aliphatic land plant biomarkers, including tetracyclic diterpenoids (beyerane, kaurane, phyllocladane) as well as high terrestrial/aquatic ratio (TAR &gt;1) and conventional odd-numbered long-chain n-alkanes, which are derived from land plants were detected. Other aromatic land plant biomarkers, including naphthalenes and cadalene, were also distinguished in the samples. The presence of land plant biomarkers (beyerane, kaurane, phyllocladane, cadalene) and their slight increase in the examined Laurasian Devonian to Triassic samples signify the abundance and diversity of higher plants. Vascular plants, including <em>psilophyton</em>, <em>pertica</em>, <em>leclercqia</em>, <em>drepanophycus</em>, and <em>sawdonia</em> dominated the Lower Devonian flora (in the Rhynie Chert, for example), contributing to the evolution of the terrestrial ecosystem, with the diversity of seed plants, appearance of conifers and tall trees in the Carboniferous. Gymnosperms that appeared during the Upper Carboniferous period became the dominant flora in the Triassic and Jurassic periods, signalled by the abundance and increase in the concentration of higher plant biomarkers. The slight decrease of biomarkers post-Middle Jurassic may reflect organic matter degradation and erosion or mass extinction of plants and possible reorganisation in the plant fossil record marked by the Triassic-Jurassic boundary. Since land-plant derived biomarkers are not expected routinely in marine environments, the detected plant biomarkers in Jurassic marine sediments (Oxfordian and Kimmeridge shales) from England are interpreted to have been caused by run-off of terrigenous carbon from land to the marine environment. The study has enhanced our understanding of the organic matter provenance, terrestrialisation process, and spatiotemporal evolution of higher plants across different geological settings of the studied areas within the Laurasian Supercontinent.</div></div>","PeriodicalId":100516,"journal":{"name":"Evolving Earth","volume":"3 ","pages":"Article 100079"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145104664","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}

{"title":"Mapping the knowledge domain of flooding events and rail infrastructure: A bibliometric and scientometric analysis","authors":"Apostolos Anagnostopoulos","doi":"10.1016/j.eve.2025.100075","DOIUrl":"10.1016/j.eve.2025.100075","url":null,"abstract":"<div><div>Flooding events pose significant risks to infrastructure, particularly rail networks, which are crucial for the efficient and safe movement of goods and people. This study aims to map the knowledge domain concerning the impacts of flooding events on rail infrastructure. A bibliometric analysis was carried out utilizing 1018 scientific publications selected from the Scopus repository through targeted queries to better understand existing research on the subject matter. By examining publication trends, citation patterns, and collaboration networks, employing VOSviewer, this research identifies key themes and trends, as well as influential authors and institutions. Additionally, it highlights gaps in the current literature and suggests future research directions to enhance the resilience of rail infrastructure to flooding. The study finds an increasing body of interdisciplinary research, with a focus on climate risk management, flood mitigation strategies, and infrastructure resilience. Four key directions were identified according to the keyword co-occurrence analysis: “Climate risk and decision support”, “Flood management and bridge infrastructure”, “Rainfall impact on land use and transport”, and “Disaster risks and prevention strategies”. Finally, the research frontiers are resilience, light rail transit, risk perception, and vulnerability, undertaken through keyword co-occurrence analysis. These keywords underscore the progression of innovative infrastructure design, adaptive urban planning, and sustainable mobility solutions.</div></div>","PeriodicalId":100516,"journal":{"name":"Evolving Earth","volume":"3 ","pages":"Article 100075"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144892903","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}