Proceedings of the Geologists Association最新文献

{"title":"Microbial mound origin for enigmatic, sea-floor, circular structures? Purbeck Limestone Group, offshore Dorset, U.K.","authors":"Dan Bosence ,&nbsp;Jenny Collier ,&nbsp;Arnaud Gallois ,&nbsp;Ian Watkinson ,&nbsp;Chris Dunkerley ,&nbsp;Simon Fleckner","doi":"10.1016/j.pgeola.2025.01.002","DOIUrl":"10.1016/j.pgeola.2025.01.002","url":null,"abstract":"<div><div>This paper describes and interprets diver-collected, offshore samples to establish the origin of enigmatic large (100–200 m across) circular, dome-shaped features imaged using Multibeam Echo-Sounding (MBES) on the sea-floor of Weymouth Bay, Dorset, U.K. The structures occur within the Durlston Formation of the Purbeck Limestone Group (Late Jurassic–Early Cretaceous) that accumulated in a lagoon of variable salinity. A previous morphological study using MBES images alone led to four possible hypotheses for their origin; as isolated erosional remnants, as evaporite-related diapiric structures, as periclinal folds, or as eroded carbonate mounds that grew within the Purbeck lagoon. The petrographic study of seafloor samples taken from the centre of these structures results in their classification into nine sedimentary facies; eight limestones and one chert. The most abundant of these facies are similar to the well-known Purbeck limestones outcropping in nearby cliff sections, however four out of the nine facies have previously unrecorded microbialite components (intraclasts of travertine, stromatolites, laminated filamentous mudstones, and post-depositional, cavity-lining endostromatolites).</div><div>This petrographic analysis suggests a microbial carbonate mound origin for these structures that is also supported by their morphology, their restricted occurrence palaeogeographically and stratigraphically to within the Purbeck Limestone, and the occurrence of microbialites at this level in onshore outcrops. Carbonate mounds of this size, in a lagoonal setting, are previously unknown from the Wessex Basin but show some similarities with Early Cretaceous lacustrine build-ups in South Atlantic offshore basins. The work demonstrates how the interpretation of even an extremely well-known stratigraphy such as that of the Purbeck Group can be limited when only part of the marginal environment is exposed for study.</div></div>","PeriodicalId":49672,"journal":{"name":"Proceedings of the Geologists Association","volume":"136 4","pages":"Article 101093"},"PeriodicalIF":1.2,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144322559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Skull roof anatomy of the Early Jurassic (Toarcian) acipenseriform †Gyrosteus mirabilis Woodward ex Agassiz, from Yorkshire, England, elucidates diversity of †Chondrosteidae","authors":"Samuel L.A. Cooper ,&nbsp;Megan Jacobs ,&nbsp;Lucrezia Ferrari ,&nbsp;David M. Martill","doi":"10.1016/j.pgeola.2024.12.004","DOIUrl":"10.1016/j.pgeola.2024.12.004","url":null,"abstract":"<div><div>An articulated and mostly complete skull roof of the enigmatic Early Jurassic chondrosteid fish, ^†<em>Gyrosteus mirabilis</em> Woodward ex Agassiz is described from the Whitby Mudstone Formation (Toarcian) of Whitby, Yorkshire. Known since the 1830s, isolated bones attributable to this taxon are frequently found along the Whitby coast, although articulated remains are rarely reported. The fragmentary nature of <em>Gyrosteus mirabilis</em>, the largest non-reptilian animal from the British Lower Jurassic, has led some researchers to propose it as a subjective synonym of ^†<em>Chondrosteus</em> Egerton ex Agassiz, from the Lower Lias of Dorset, and others to suggest synonymy with the similarly massive ^†<em>Strongylosteus</em> Jaekel from the Upper Lias (Toarcian) of Germany. Here, we compare the skull roof anatomies of ^†<em>Gyrosteus mirabilis</em> with ^†<em>Chondrosteus acipenseroides</em> and ^†<em>Strongylosteus hindenburgi</em> and present new criteria to differentiate between these taxa. We find the skull roofs of <em>Chondrosteus</em> and <em>Strongylosteus</em> to be vastly different with <em>Gyrosteus</em> representing something of an ‘intermediate’ morphology with closer affinities to <em>Strongylosteus</em>. The presence of a medial parietal and rostral bones is shared between <em>Gyrosteus</em> and <em>Strongylosteus</em> but these are absent in <em>Chondrosteus</em>. Our results support the taxonomic validity of both <em>Gyrosteus mirabilis</em> and <em>Strongylosteus hindenburgi</em> as monotypic genera distinct from <em>Chondrosteus acipenseroides</em>.</div></div>","PeriodicalId":49672,"journal":{"name":"Proceedings of the Geologists Association","volume":"136 3","pages":"Article 101089"},"PeriodicalIF":1.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143947517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Refining the known extent of major onshore Quaternary glaciation in the UK — Types of evidence, nomenclature and uncertainty","authors":"Jonathan R. Lee ,&nbsp;Sam Roberson","doi":"10.1016/j.pgeola.2024.12.002","DOIUrl":"10.1016/j.pgeola.2024.12.002","url":null,"abstract":"<div><div>Repeated cycles of Quaternary glaciation have had a major impact on the morphology and shallow sub-surface properties of much of the UK landscape and continental shelf. Understanding the extent of glaciation involves understanding of our landscape history but is also critical to the broad range of applied users that interact with the shallow sub-surface including engineers, hydrogeologists, planners and decision makers. Numerous interpretations of the onshore extent of the Anglian and Late Devensian glaciations have been published. However, many are not clearly evidenced or justified, being sometimes based on anecdotal evidence or supposition, with the levels of associated uncertainty not effectively communicated. As part of this work, the long-term record of Quaternary glaciation within the UK is reviewed and the types of geological and geomorphological information that can be employed to interpret their former extent are assessed. We also examine the range of factors that may influence the relative preservation of this evidence. As part of this assessment, we recommend abandoning the term ‘glacial limit’ (and other related synonyms) when interpreting the extent of glaciation within the geological record. Instead, we recommend using the term <em>limit of preserved evidence</em> which more accurately reflects the spatial context of such evidence. Finally, we present new onshore linework for the limit of preserved evidence of both the Anglian and Late Devensian glaciations, presenting how this linework was captured and the associated levels of uncertainty.</div></div>","PeriodicalId":49672,"journal":{"name":"Proceedings of the Geologists Association","volume":"136 3","pages":"Article 101087"},"PeriodicalIF":1.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143947739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A revision of sponges from the Faringdon Sponge Gravel Member and Atherfield Clay Formation, Lower Greensand Group of England","authors":"Consuelo Sendino ,&nbsp;Stephen Kershaw","doi":"10.1016/j.pgeola.2024.12.006","DOIUrl":"10.1016/j.pgeola.2024.12.006","url":null,"abstract":"<div><div>Sponges of the Lower Greensand Group (LGS) are well preserved and occur in sediments of a sandy matrix. Abundant in the Faringdon Sponge Gravel Member (FSG), these sponges, mostly Calcareans, are found in Oxfordshire, with notable preservation at Little Coxwell quarries. This study provides descriptions of common species following the updated Porifera classification and recent sponge taxonomy research, illustrated with specimens from the Natural History Museum, London (NHM), British Geological Survey (BGS), and Natural History Museum Basel (NMB) collections. The following taxa are recorded and described: 1) Calcareans: <em>Barroisia anastomosans</em> (Parkinson, 1822), <em>Barroisia clavata</em> (Keeping, 1883), <em>Barroisia irregularis</em> (Hinde, 1884), <em>Dehukia crassa</em> (de Fromentel, 1861), <em>[Elasmoierea] faringdonensis</em> (Mantell, 1854), <em>[Elasmoierea] mantelli</em> (Hinde, 1884), <em>Peronidella gillieroni</em> (de Loriol, 1869), <em>Peronidella prolifera</em> (Hinde, 1884), <em>Peronidella ramosa</em> (Roemer, 1839), <em>Oculospongia dilatate</em> (Roemer, 1864), <em>Tremospongia pulvinaria</em> (Goldfuss, 1826), <em>Raphidonema contortum</em> (Hinde, 1884), <em>Raphidonema porcatum</em> (Sharpe, 1854), <em>Raphidonema farringdonensis</em> (Sharpe, 1854), <em>Raphidonema macropora</em> (Sharpe, 1854), <em>Raphidonema pustulatum</em> (Hinde, 1884), <em>Endostoma foraminosa</em> (Goldfuss, 1826); and 2) Hexactinellids: <em>Lonsda contortuplicata</em> (Lonsdale, 1849). Key findings include the identification of Tethyan biogeographic affinities and ecological adaptations that highlight the role of these sponges in early reef-like systems. By refining species descriptions and linking them to broader Cretaceous ecosystems, this work enhances understanding of sponge biodiversity, evolutionary strategies, and their contributions to carbonate platform development during periods of environmental change.</div></div>","PeriodicalId":49672,"journal":{"name":"Proceedings of the Geologists Association","volume":"136 3","pages":"Article 101091"},"PeriodicalIF":1.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143947765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of the EECO on mammalian faunas: New Ypresian localities from Montpellier (France), a multidisciplinary approach","authors":"Fabrice Lihoreau ,&nbsp;Johan Yans ,&nbsp;Mouloud Benammi ,&nbsp;Flavia Girard ,&nbsp;Gregory Ballas ,&nbsp;Hélène Bourget ,&nbsp;Cindy Boyrie ,&nbsp;Jacinthe Caillaud ,&nbsp;Anne-Lise Charruault ,&nbsp;Killian Gernelle ,&nbsp;Floréal Solé ,&nbsp;Xavier Valentin ,&nbsp;Quentin Vautrin ,&nbsp;Monique Vianey-Liaud ,&nbsp;Rodolphe Tabuce","doi":"10.1016/j.pgeola.2025.01.001","DOIUrl":"10.1016/j.pgeola.2025.01.001","url":null,"abstract":"<div><div>An integrative chronological study on a new terrestrial sedimentary sequence north of Montpellier (southern France) yields an age ranging from 52.1 to 49.7 Ma. This sequence contains three new mammalian fossil localities, for the first time described in this study, and is associated with the nearby specifically rich site of Mas de Gimel (MP10 — European Mammalian Paleogene Reference Scale [MP]). This study constrains the age of the Grauvian ELMA [European Land Mammal Age] with respect to the geological time scale, suggesting that it is more contemporary with the EECO (Early Eocene Climatic Optimum) than previously considered, and in particular with the period of High Amplitude Climate Fluctuations. These new faunas and data allow us to discuss the relevance of the European Mammalian Paleogene Reference Scale [MP] and to propose new continental biozones for the late Ypresian. It also demonstrates that the late Neustrian fauna (MP8 + 9) is contemporary with the onset of the EECO and that there may be several late- and post-EECO faunas in southern France. Our study moreover suggests phases of diversification during the warm periods, and extinction during the cooling, as observed in North America. Future refined dating of the European fossil localities of this key period will help to discuss the impact of global warming on mammalian communities in the frame of further intercontinental comparisons.</div></div>","PeriodicalId":49672,"journal":{"name":"Proceedings of the Geologists Association","volume":"136 3","pages":"Article 101092"},"PeriodicalIF":1.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143947894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Palaeosols from the Upper Triassic of South Wales","authors":"V. Paul Wright ,&nbsp;Peter Hodges ,&nbsp;Jennifer M. Huggett ,&nbsp;Susan B. Marriott","doi":"10.1016/j.pgeola.2024.12.005","DOIUrl":"10.1016/j.pgeola.2024.12.005","url":null,"abstract":"<div><div>Temporary exposures recording the Upper Triassic–Lower Jurassic transition near Bridgend, South Wales provided a rare opportunity to assess how this major stratigraphical interval is manifested in terrestrial deposits in close proximity to the intensively studied marine and marginal marine successions in SW Britain. Following the progradation and exposure of a shoreline sandbody, up to 8 m of coastal plain deposits formed during a subsequent punctuated transgression. These deposits host a series of palaeosols with unusual carbonate textures, complex mottling styles and marked lateral variability, with evidence of several changes in hydrological conditions. Initially calcrete-bearing soils capped the shoreline sandstones but were overprinted by ferroan-carbonate-bearing gleys likely marking the influence of marine waters. Subsequently, a transition to well-drained soils with calcrete horizons occurred. Continued mud grade deposition was marked by the development of pseudo-gley conditions culminating in gleyed soils, overlain by marine sediments. This provides an example of the often complex polyphase and polygenetic nature of palaeosols encountered in aggrading sedimentary systems.</div></div>","PeriodicalId":49672,"journal":{"name":"Proceedings of the Geologists Association","volume":"136 3","pages":"Article 101090"},"PeriodicalIF":1.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143947764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sites of Special Scientific Interest: Their role and importance in conserving England's geoheritage","authors":"Colin D. Prosser,&nbsp;Hannah C. Townley","doi":"10.1016/j.pgeola.2025.101095","DOIUrl":"10.1016/j.pgeola.2025.101095","url":null,"abstract":"<div><div>The National Parks and Access to the Countryside Act (1949), the first national nature conservation legislation in Great Britain, included provision to designate, for the purpose of nature conservation, Sites of Special Scientific Interest (SSSIs) on account of their flora, fauna, geological or physiographical (geomorphological) features. Although often incorrectly perceived only as a means of conserving flora and fauna, SSSIs remain the primary mechanism for conserving and managing nationally and internationally important geological and geomorphological features in Great Britain. Seventy-five years on, and with questions being raised about how well they conserve flora and fauna given current threats and pressures, the role and effectiveness of SSSIs in conserving the highlights of England's geoheritage are explored. The importance of geological/geomorphological SSSIs, their origin, character, and workings, and the threats and pressures they face are described. The condition of the 1221 existing geological/geomorphological SSSIs in England is described and the strengths and weaknesses of existing SSSI legislation and policy are discussed, leading us to conclude that SSSIs have been, and remain, extremely effective in conserving England's geoheritage. Any future SSSI reform should recognise, build upon and celebrate the success of geological/geomorphological SSSIs, and would provide an opportunity to raise the profile of geoconservation in government policy and to futureproof the SSSI series. For example, simplifying the process for updating SSSI descriptions and site boundaries would make it easier to accommodate advances in scientific understanding and respond to the physical repositioning of geological/geomorphological features resulting from natural processes.</div></div>","PeriodicalId":49672,"journal":{"name":"Proceedings of the Geologists Association","volume":"136 3","pages":"Article 101095"},"PeriodicalIF":1.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143947895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Soft-sediment deformation structures of tide origin: A case study from the late Miocene Tafna Basin (NW Algeria)","authors":"Mostapha Benzina ,&nbsp;Abdelmalik Draoui ,&nbsp;Hakim Hebib ,&nbsp;Małgorzata Pisarska-Jamroży","doi":"10.1016/j.pgeola.2024.12.001","DOIUrl":"10.1016/j.pgeola.2024.12.001","url":null,"abstract":"<div><div>Typical liquefaction-induced soft-sediment deformation structures were recognised in the Neogene-age tide-dominated estuarine sedimentary succession Bled El Trayfa in the Tafna basin (NW Algeria). Although NW Algeria was tectonically active during late Neogene, we suggest that another trigger mechanism that is not related to earthquakes is responsible for the liquefaction phenomenon and the development of soft-sediment deformation structures in the area. The sedimentary succession called the Bled El Trayfa exhibits tidal rhythmites, heterolithic beddings, bi-directional cross-laminae, and tidal bore couplets deposited in tidal flats within the intertidal environment. A tidal bore, defined as upstream-propagating hydraulic jumps associated with the flood tide in estuarine rivers, is proposed as the main trigger mechanism responsible for the liquefaction phenomenon and the development of soft-sediment deformation structures. This suggestion was made on a set of observed arguments: firstly, the presence of draping massive sand underlain by erosional surfaces indicating scouring by upstream-propagating bores, followed by a very rapid deposition in a tide-dominated estuarine from the intertidal environment and secondly, the formation of distinctive (typical) soft-sediment deformation structures, characterised by convoluted and folded structure like flow rolls along with associated dewatering structures. Alongside flow rolls as typical and dominant soft-sediment deformation structures, the succession also includes load casts, recumbent folds, water-escape structures, convolute laminations, ball-and-pillow structures, and flame structures. Even though the relationship between the tidal bore and sediment deformation structures has been proved in some current researches, the Bled El Trayfa succession was considered among the rare areas where this relationship was identified as the origin of SSDSs in ancient rock record.</div></div>","PeriodicalId":49672,"journal":{"name":"Proceedings of the Geologists Association","volume":"136 3","pages":"Article 101086"},"PeriodicalIF":1.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143947738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Determining the relative scientific and cultural “value” of the UK's in-situ dinosaur track sites","authors":"Kirsty M. Edgar ,&nbsp;Richard J. Butler ,&nbsp;Jonathan G. Larwood ,&nbsp;Joshua J.P. Smith","doi":"10.1016/j.pgeola.2024.12.003","DOIUrl":"10.1016/j.pgeola.2024.12.003","url":null,"abstract":"<div><div>Dinosaur tracks (footprints) provide useful information on the palaeoecology and distribution of dinosaurs over time, complementing the skeletal (body) fossil record. These tracks are amongst the most popular and recognisable trace fossils in the natural world, attracting significant public interest and drawing visitors to sites in England, Scotland, and Wales. Beyond their scientific importance, they offer valuable aesthetic and educational opportunities in the tourism and education sectors. However, the protection, monitoring, communication, and scientific understanding of these sites vary widely. Here we review the nature of the fourteen <em>in-situ</em> dinosaur track sites present in the UK today, and subsequently use an established quantitative system to determine the relative scientific and cultural ‘value’ of each site. We find that the relative scientific and cultural value of UK track sites varies considerably, and that the two value types do not correlate with one another. UK sites with considerable national and international scientific value include the Late Triassic dinosaur track site Bendrick Rock, in South Wales, and the Middle Jurassic site Ardley Quarry, in Oxfordshire. By contrast, the Early Cretaceous dinosaur track sites at Hanover Point, Isle of Wight, and Spyway Quarry, Dorset have relatively high cultural value due to their accessibility and visitor appeal, but modest scientific value. This assessment helps identify threats and opportunities for UK dinosaur track sites, guiding future conservation, scientific research, and public engagement efforts.</div></div>","PeriodicalId":49672,"journal":{"name":"Proceedings of the Geologists Association","volume":"136 3","pages":"Article 101088"},"PeriodicalIF":1.2,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143947740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quaternary sea level landforms and sediments in southern England: Description of Geological Conservation Review sites","authors":"Rebecca M. Briant ,&nbsp;B. Andrew Haggart ,&nbsp;Danielle C. Schreve ,&nbsp;Colin A. Whiteman","doi":"10.1016/j.pgeola.2022.06.004","DOIUrl":"10.1016/j.pgeola.2022.06.004","url":null,"abstract":"<div><div>The Hampshire Basin of southern England contains a number of sites, reviewed here, that contain evidence for former sea levels over a period of <em>c.</em><span> 0.5 million years and can also be used to aid in understanding of uplift over time and human activity in the landscape. They include three sites where fossiliferous sediments overlie a palaeo shore platform in either Chalk (Boxgrove and Black Rock) or softer sediments (Bembridge), which are the most robust evidence of former sea levels. The other four sites are less useful as palaeo sea level indicators, but contain rich fossil sequences (</span><em>e.g.</em>, Selsey East Beach, Boxgrove, Earnley, Stone Point) or abundant archaeological artefacts (Boxgrove, Priory Bay). Black Rock is most significant for the very rare cold-stage deposits overlying the raised beach and their associated fauna.</div></div>","PeriodicalId":49672,"journal":{"name":"Proceedings of the Geologists Association","volume":"136 1","pages":"Article 100968"},"PeriodicalIF":1.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85753722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}