Earth-Science Reviews最新文献

{"title":"A review of dissolved inorganic carbon isotopic fractionations in carbonate-bearing areas: Processes, models and applications","authors":"Jun Zhong ,&nbsp;Hu Ding ,&nbsp;Gibran Romero-Mujalli ,&nbsp;Albert Galy ,&nbsp;Sheng Xu ,&nbsp;Cong-Qiang Liu ,&nbsp;Si-Liang Li","doi":"10.1016/j.earscirev.2025.105261","DOIUrl":"10.1016/j.earscirev.2025.105261","url":null,"abstract":"<div><div>Dissolved inorganic carbon (DIC) represents a dynamic system of carbon species in aqueous solutions, exhibiting significant variations in both concentrations and isotopic compositions. Over the past decades, researchers have extensively reported the chemical and isotopic compositions of DIC, significantly enhancing our understanding of the mechanisms governing DIC cycling. While significant advances have been made in applying DIC isotopes (δ¹³C_DIC and Δ¹⁴C_DIC) for groundwater dating and carbon sources discrimination, some studies still fail to select the appropriate models (i.e. neglecting necessary isotopic fractionation), leading to misunderstandings. This review synthesizes published theories and models of carbon isotopic fractionation to examine DIC cycling under the following conditions: (I) carbonate weathering in both closed and open systems; (II) the transition from open to closed system; (III) the DIC−carbonate exchange process; (IV) strong acid-driven weathering; (V) temperature variations; (VI) CO₂ degassing from rivers. The detailed analyses performed to DIC's chemical and isotopic compositions reveal substantial differences in its behavior under contrasting environmental conditions, and thus these findings would guide the applications of carbon isotopes in groundwater dating and carbon sources discrimination. Specifically, in groundwater dating, neglecting the processes influencing ¹³C-¹⁴C data can significantly limit the utility of radiocarbon dating, and we thus recommended incorporating carbon mixing between two carbon-bearing reservoirs (soil CO₂ and carbonate) along with DIC exchange with these reservoirs. Furthermore, the non-linear variations between δ¹³C_DIC and Δ¹⁴C_DIC in river systems suggest that Δ¹⁴C_DIC is more suitable for constraining DIC sources, while δ¹³C_DIC is more sensitive to CO₂ degassing. We propose that a comprehensive understanding of the fundamental mechanisms controlling DIC's chemical and isotopic compositions, coupled with extensive measurements across diverse climate zones, would substantially improve our comprehension of the dynamic interplay between carbon cycling and climate change.</div></div>","PeriodicalId":11483,"journal":{"name":"Earth-Science Reviews","volume":"271 ","pages":"Article 105261"},"PeriodicalIF":10.0,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145020930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bioindicators of potentially toxic elements in Mangrove ecosystems","authors":"Thant Zin Maung ,&nbsp;Theerawut Phusantisampan ,&nbsp;John Pichtel ,&nbsp;Sompong O-Thong ,&nbsp;Weeradej Meeinkuirt","doi":"10.1016/j.earscirev.2025.105258","DOIUrl":"10.1016/j.earscirev.2025.105258","url":null,"abstract":"<div><div>Mangrove ecosystems are facing an increased risk of contamination from toxic elements originating from anthropogenic activities. Bioindicating organisms indigenous to an ecosystem can be used to assess the degree of pollution. Microorganisms are the most applied biota in the evaluation of environmental quality using bioindicators, as they can be evaluated via high-throughput metagenomics sequencing technology. The current review provides a comprehensive report of potentially toxic element (PTE) accumulation, associated bioindicators, and analytical approaches for metals and biota in mangrove ecosystems. The review explores microbial interactions with key environmental variables such as pH, redox potential, and salinity. The behaviors of specific metals and related bioindicators in a typical mangrove ecosystem are presented. The review focuses on microbial bioindicators, their abundance and composition, and their analysis via metagenomics. The current review, with emphasis on mangrove ecosystems, provides a foundation for understanding PTE bioindicators and their interactions with the environment. These findings can support future bioindicator-based programs, including ecosystem health assessments and metagenomics-driven monitoring for conservation and restoration.</div></div>","PeriodicalId":11483,"journal":{"name":"Earth-Science Reviews","volume":"270 ","pages":"Article 105258"},"PeriodicalIF":10.0,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144913573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The impact of capillary heterogeneity on CO2 flow and trapping across scales","authors":"Hailun Ni ,&nbsp;Boxiao Li ,&nbsp;Nihal Darraj ,&nbsp;Bo Ren ,&nbsp;Catrin Harris ,&nbsp;Prasanna G. Krishnamurthy ,&nbsp;Idris Bukar ,&nbsp;Steffen Berg ,&nbsp;Jeroen Snippe ,&nbsp;Philip Ringrose ,&nbsp;T.A. Meckel ,&nbsp;Samuel Krevor ,&nbsp;Sally Benson","doi":"10.1016/j.earscirev.2025.105257","DOIUrl":"10.1016/j.earscirev.2025.105257","url":null,"abstract":"&lt;div&gt;&lt;div&gt;Capillary heterogeneity has been identified over the last decade as a key control on subsurface CO&lt;sub&gt;2&lt;/sub&gt; flow behavior during geological CO&lt;sub&gt;2&lt;/sub&gt; sequestration. These heterogeneities can be formed in all sedimentary rocks, ranging from slight variations in the sand grain sizes to extensive sequences of interbedded sands, shales, and limestones. Capillary heterogeneity has been largely, although not entirely, overlooked in subsurface flow modeling because it is assumed to only directly influence fluid redistribution over scales of centimeters to meters. However, even small-scale fluid movements can result in dramatic impacts on the mobility and trapping of CO&lt;sub&gt;2&lt;/sub&gt; over kilometers. Therefore, neglecting capillary heterogeneity at multiple scales could potentially lead to errors in modeling and predicting field-scale plume migration. In this review paper, we aim to provide a consistent overview to (1) establish that capillary heterogeneity can have a major impact on CO&lt;sub&gt;2&lt;/sub&gt; plume migration, (2) establish the respective length scales at which capillary heterogeneity matters, and (3) provide guidance for numerical modeling.&lt;/div&gt;&lt;div&gt;This review covers pertinent literature and extracts key observations from core to field scales. Experimental studies have shown that millimeter-decimeter scale capillary heterogeneity can cause the so-called capillary heterogeneity trapping in addition to pore-scale residual trapping. Even at such a small scale, capillary heterogeneity can already lead to complex upscaled constitutive relationships, such as flow-rate dependent and anisotropic relative permeability, which affects field-scale CO&lt;sub&gt;2&lt;/sub&gt; migration even when field-scale heterogeneities are present. Under gravity-dominated flow regimes, centimeter-meter scale capillary heterogeneity can entrap a significant amount of CO&lt;sub&gt;2&lt;/sub&gt; at the field scale, not only after imbibition but also during drainage. In certain cases, the presence of capillary heterogeneity can even completely stop the vertical movement of the CO&lt;sub&gt;2&lt;/sub&gt; plume, hence greatly reducing leakage risks. At the meter-kilometer scale, the influence of capillary heterogeneity is more pronounced and can hinder or redirect CO&lt;sub&gt;2&lt;/sub&gt; migration in both lateral and vertical directions.&lt;/div&gt;&lt;div&gt;The impact of capillary heterogeneity across multiple spatial scales poses a great challenge in modeling CO&lt;sub&gt;2&lt;/sub&gt; migration at the field scale, because it is practically impossible to build a field-scale earth model with grid blocks at the millimeter scale. We recommend a hierarchical modeling approach to address this challenge. At the field scale, earth models are built to capture geological features and heterogeneities in high but still practical grid resolutions. For each facies or rock type in the field-scale model, high-resolution meter-scale “conceptual” models are built using millimeter-scale grid blocks to capture representative fine-scale bedding ge","PeriodicalId":11483,"journal":{"name":"Earth-Science Reviews","volume":"270 ","pages":"Article 105257"},"PeriodicalIF":10.0,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144922102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Geomechanical stability for hydrate-based CO2 sequestration in marine sediments: A comprehensive review","authors":"Qi Zhang,&nbsp;Zixuan Song,&nbsp;Daoyi Chen,&nbsp;Mucong Zi","doi":"10.1016/j.earscirev.2025.105254","DOIUrl":"10.1016/j.earscirev.2025.105254","url":null,"abstract":"<div><div>Hydrate-based CO₂ sequestration (HBCS) in marine sediments presents a promising strategy for long-term carbon storage, capitalizing on the thermodynamic stability of CO₂ hydrates under seafloor conditions. While the phase behavior and formation mechanisms of CO₂ hydrates have been extensively investigated, the geomechanical stability of hydrate reformation during and after CO₂ injection remains insufficiently explored, with direct implications for safety, efficiency, and scalability. This review synthesizes current knowledge on HBCS across three key offshore geological settings: sub-seafloor formations, natural gas hydrate reservoirs, and depleted oil/gas fields. We identify major gaps, including (i) limited experimental data on the mechanical properties of pure and mixed CO₂ hydrates and their comparison with methane hydrates, (ii) absence of validated constitutive models linking hydrate saturation to sediment mechanics, and (iii) unverified assumptions in numerical models regarding hydrate-induced stiffness gains. We conclude that advancing HBCS requires targeted laboratory studies, development of robust mechanical models, and integration of real-time monitoring in field trials. Addressing these priorities will be essential for safe, reliable, and scalable offshore CO₂ storage.</div></div>","PeriodicalId":11483,"journal":{"name":"Earth-Science Reviews","volume":"270 ","pages":"Article 105254"},"PeriodicalIF":10.0,"publicationDate":"2025-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144904513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lacustrine shale oil systems in China: Advances in characterization methods and resource accumulation models","authors":"Xusheng Guo ,&nbsp;Enze Wang ,&nbsp;Xiaoxiao Ma ,&nbsp;Maowen Li ,&nbsp;Menhui Qian ,&nbsp;Tingting Cao ,&nbsp;Zhiming Li ,&nbsp;Junjie Chu","doi":"10.1016/j.earscirev.2025.105256","DOIUrl":"10.1016/j.earscirev.2025.105256","url":null,"abstract":"<div><div>Lacustrine shale oil is an important replacement for conventional oil and gas in China, yet it differs markedly from North American marine shales, exhibiting stronger heterogeneity both between stratigraphic intervals and within beds. Such variability demands high-density sampling, but conventional reservoir testing and sampling methods may be inefficient and yield biased results. The applicability of marine shale exploration models to lacustrine systems also remains uncertain, and a unified enrichment framework is lacking. This study: 1) investigates the lithofacies and organic facies of different lacustrine shale systems; 2) reviews advances in characterizing the four key properties of shale (storage capacity, oil content and mobility, and fracability); 3) synthesizes recent insights into shale oil occurrence, flow, and enrichment; 4) classifies lacustrine shale plays by source–reservoir configuration; 5) identifies geological sweet spots under different tectonic–sedimentary conditions; and 6) establishes corresponding enrichment models. Results show that freshwater lacustrine basins, with substantial terrigenous input, mainly develop siliceous–argillaceous shales or fine sandstone–siltstone lithofacies, whereas saline systems dominated by endogenous deposition favor carbonate-rich lithofacies. Organic matter enrichment is primarily controlled by high primary productivity in freshwater lakes and by selective preservation in saline lakes. Tailored techniques such as magnetic fluid volume measurement, portable X-ray fluorescence, and multistep pyrolysis improve the accuracy of key geological parameters. Organic matter content and kerogen–hydrocarbon interactions are the main controls on oil retention, while oil mobility is influenced by organic–inorganic coupling, pore structure, pressure gradients, and fluid properties. Fundamentally, enrichment mechanisms are similar in marine and lacustrine shales, differing mainly in their macroscopic expressions. Based on the source–reservoir configuration, lacustrine shale plays can be categorized into three types: (1) source-storage separation on meter-scale, (2) source-storage coexistence on centimeter- to millimeter-scale, and (3) source-storage integration on sub-millimeter-scale. Low–medium maturity integration plays in saline settings show the greatest exploration potential, while analogous plays in freshwater systems require high thermal maturity and favorable preservation conditions.</div></div>","PeriodicalId":11483,"journal":{"name":"Earth-Science Reviews","volume":"270 ","pages":"Article 105256"},"PeriodicalIF":10.0,"publicationDate":"2025-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144893395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Slab length and slab tearing control asymmetric exhumation of the Calabrian Arc","authors":"Nicolas Villamizar-Escalante ,&nbsp;Christoph von Hagke ,&nbsp;Francesco Muto ,&nbsp;Luca Caracciolo ,&nbsp;Fabian Dremel ,&nbsp;Bjarne Friedrichs ,&nbsp;Jörg Robl ,&nbsp;Sean F. Gallen","doi":"10.1016/j.earscirev.2025.105255","DOIUrl":"10.1016/j.earscirev.2025.105255","url":null,"abstract":"<div><div>Slab dynamics play a fundamental role in shaping landscapes through subduction, tearing, and rollback. The Calabrian Arc, situated along the convergent margin of the Eurasian and African plates, offers a natural laboratory to investigate the interplay between slab rollback, geometry, and tearing. Building upon prior studies that primarily focused on large-scale geophysical or tectonic data, our study synthesizes previously published low-temperature thermochronology datasets to reinterpret the long-term evolution of the Calabrian Arc using new thermal modeling. Our integrated analysis reveals a cessation of rapid exhumation earlier in the north (∼14 Ma) relative to the south (∼9 Ma). Differences in the timing of exhumation slowdown are interpreted to reflect the geodynamic effects of the diachronous arrival of the Ionian slab at the 660 km mantle transition zone, the extended northern slab reaching the transition zone earlier than the shorter slab segment in the south. A slab tear in the Catanzaro trough delimits the boundary between the longer and the shorter slab segments and provides further evidence supporting this model. This study provides an explanation for the asymmetrical exhumation of the Calabrian Arc, emphasizing the role of heterogeneous slab length and tearing dynamics in the shaping of tectonic patterns within subduction zones.</div></div>","PeriodicalId":11483,"journal":{"name":"Earth-Science Reviews","volume":"270 ","pages":"Article 105255"},"PeriodicalIF":10.0,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144887529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advances in multi-source data fusion for precipitation estimation: remote sensing and machine learning perspectives","authors":"Vahid Nourani ,&nbsp;Moein Tosan ,&nbsp;Jinhui Jeanne Huang ,&nbsp;Mekonnen Gebremichael ,&nbsp;Sameh A. Kantoush ,&nbsp;Mehdi Dastourani","doi":"10.1016/j.earscirev.2025.105253","DOIUrl":"10.1016/j.earscirev.2025.105253","url":null,"abstract":"<div><div>During an era defined by unparalleled climate variability and intensifying water security challenges, precise precipitation estimation plays a pivotal role in establishing resilient water management systems and effective disaster mitigation strategies. This study presents an in-depth review of recent advances in precipitation estimation using multi-source data, with an emphasis on integrating Remote Sensing (RS) techniques with advanced pattern recognition methods. Utilizing the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) framework, we aggregate findings from peer-reviewed studies published since 2010 to evaluate the efficacy of satellite platforms—comprising geostationary, low-Earth orbit (LEO), and hyperspectral sensors—in acquiring precipitation data. Multi-source datasets such as the Climate Prediction Center Morphing Method (CMORPH), Tropical Rainfall Measuring Mission (TRMM), Global Precipitation Measurement (GPM), and Fengyun-4B have been merged with state-of-the-art Machine Learning (ML) algorithms, including Convolutional Neural Networks (CNNs), Long Short-Term Memory (LSTM) networks, ensemble approaches (i.e., techniques that combine predictions from multiple models to improve performance and robustness), and hybrid architectures (i.e., frameworks that integrate fundamentally different model types, such as machine learning algorithms with physics-based simulations), to effectively capture the spatial and temporal variability of precipitation. These challenges are mitigated by incorporating high-resolution predictors, wherein Digital Elevation Models (DEM) alleviate orographic biases, the Normalized Difference Vegetation Index (NDVI) reflects land-surface interactions, and soil moisture supplies essential data for water balance calibration, thus rectifying spatial heterogeneity and sensor inaccuracies. These predictors are utilized in conjunction with sophisticated calibration methods grounded in Bayesian optimization and Transfer Learning (TL). Comparative assessments demonstrate that hybrid and ensemble models surpass traditional techniques, especially in hilly and data-scarce areas. The paper examines uncertainty reduction through enhanced pre-processing, multi-source integration, and novel downscaling-calibration frameworks, while emphasizing prospective future avenues such as physics-based neural networks and federated learning methodologies.</div></div>","PeriodicalId":11483,"journal":{"name":"Earth-Science Reviews","volume":"270 ","pages":"Article 105253"},"PeriodicalIF":10.0,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144867264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The trace-fossil record of the Late Paleozoic Ice Age","authors":"Luis A. Buatois ,&nbsp;Pablo J. Alonso-Muruaga ,&nbsp;M. Gabriela Mángano ,&nbsp;Mao Luo ,&nbsp;G.R. Shi","doi":"10.1016/j.earscirev.2025.105252","DOIUrl":"10.1016/j.earscirev.2025.105252","url":null,"abstract":"&lt;div&gt;&lt;div&gt;The Late Paleozoic Ice Age (LPIA) lasted approximately 100 million years, starting in the Andean basins of western South America by the Famennian-earliest Tournaisian and culminating in eastern Australia by the Wuchiapingian. Based on a comprehensive dataset of the LPIA in Gondwana, we analyze how the trace-fossil record reveals temporal and spatial changes in high-latitude stressors reflecting the diachronous nature of the glaciation. Twelve trace-fossil associations, showing variable degrees of recurrence and named after one of their most characteristic ichnotaxon, were identified. These are the &lt;em&gt;Umfolozia, Diplopodichnus, Mermia, Gyrochorte, Psammichnites, Planolites, Rosselia, Phycosiphon, Diplocraterion, Rhizocorallium, Zoophycos,&lt;/em&gt; and &lt;em&gt;Thalassinoides&lt;/em&gt; associations. Almost all these associations illustrate archetypal Seilacherian ichnofacies.&lt;/div&gt;&lt;div&gt;Salinity is regarded as a first-order environmental control, and associations can be further grouped accordingly. Other controlling factors that are envisaged as having played significant roles were hydrodynamic energy, substrate, sedimentation rate, and oxygen. The &lt;em&gt;Umfolozia&lt;/em&gt;, &lt;em&gt;Diplopodichnus&lt;/em&gt;, and &lt;em&gt;Mermia&lt;/em&gt; associations are typical of freshwater settings, encompassing from proglacial lakes to fjord lakes and fjord heads. The &lt;em&gt;Planolites&lt;/em&gt;, &lt;em&gt;Gyrochorte, Psammichnites&lt;/em&gt;, &lt;em&gt;Rosselia&lt;/em&gt;, and &lt;em&gt;Phycosiphon&lt;/em&gt; associations reflect either permanent brackish-water conditions or fluctuations of marine or near-marine normal salinities and events of freshening, representing a wide variety of marginal-marine environments, such as estuarine, fjord, delta front, and prodelta. The &lt;em&gt;Diplocraterion&lt;/em&gt;, &lt;em&gt;Rhizocorallium&lt;/em&gt;, &lt;em&gt;Zoophycos,&lt;/em&gt; and &lt;em&gt;Thalassinoides&lt;/em&gt; associations are typical of normal-marine conditions, encompassing nearshore, offshore, and shelf environments, with the latter being characteristic of erosional exhumation of firmgrounds during transgressive ravinement.&lt;/div&gt;&lt;div&gt;The fact that most of these associations illustrate archetypal Seilacherian ichnofacies shows that the basic tenets of the ichnofacies paradigm can be applied to these high-latitude Gondwana basins. However, there are some peculiarities of Gondwanan trace-fossil associations that need to be framed within the context of the LPIA. The volume of freshwater release due deglaciation in the Andean basins in the late Serpukhovian to Bashkirian and in the Paraná and Karoo basins in the Gzhelian resulted in the displacement of the salinity barrier several tens of kilometers seaward within fjord systems. Freshening prevented the establishment of a marine benthos and allowed colonization by a freshwater biota, as indicated by the presence of the &lt;em&gt;Umfolozia&lt;/em&gt; or &lt;em&gt;Mermia&lt;/em&gt; associations. Marine ichnofaunas during during the LPIA show a very restricted distribution and very low levels of diversity, as shown by brackish-water suites identified in ","PeriodicalId":11483,"journal":{"name":"Earth-Science Reviews","volume":"270 ","pages":"Article 105252"},"PeriodicalIF":10.0,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144878879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tidal strait depositional model revised","authors":"Sergio G. Longhitano","doi":"10.1016/j.earscirev.2025.105250","DOIUrl":"10.1016/j.earscirev.2025.105250","url":null,"abstract":"<div><div>This paper presents a revised depositional model for tidal straits, building upon a previous prototype published in 2013. That model introduced a subdivision of tidal straits into four main sectors: (A) a strait-center, (B) a dune-bedded zone, (C) strait-end zone, and (D) a strait-margin zone, indicating as each of these zones are identifiable based on their distinctive hydrodynamics, sedimentary structures, and grain-size distributions. The model also provided predictive sedimentological columns and a main stratigraphic framework useful for the identification of ancient strait-fill successions preserved in outcrop or subsurface. While it marked a significant advancement in the understanding of both modern and ancient tidal straits, its applicability was constrained by the limited number of case studies on which it was based.</div><div>The new model presented in this paper integrates insights from 29 modern and 22 ancient tidal straits to enhance the understanding of strait-scale sedimentary processes and their stratigraphic signatures. The revised framework reaffirms the presence of the four principal depositional zones but introduces some novel element, including: (i) the recognition of sedimentary facies also in Zone A, such as gravel ribbons, previously considered as a sole bypass environment; (ii) the presence of supercritical-flow structures as an early process precursor of current-dominated tidal sedimentation; (iii) an expanded variety of bedforms in Zone B, including tidal sand ridges; (iv) a new link between shallow-water tidal processes and deeper contouritic deposits in Zone C; and (v) the inclusion of delta deflection and sediment reworking along strait margins or Zone D. The updated model additionally offers improved stratigraphic criteria for recognizing ancient tidal straits in the rock record, integrated with specific types of ichnofacies, and emphasizes their relevance to paleogeographic reconstructions and subsurface resource exploration. Finally, the study identifies key areas within modern straits with potential for tidal and wave energy harvesting, highlighting the broader implications of tidal straits for sustainable energy strategies.</div></div>","PeriodicalId":11483,"journal":{"name":"Earth-Science Reviews","volume":"270 ","pages":"Article 105250"},"PeriodicalIF":10.0,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144860699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Iron plays critical roles in nitrogen retention and removal in soils and sediments","authors":"Hang Jing ,&nbsp;Jing Wang ,&nbsp;Yi Cheng ,&nbsp;Zucong Cai ,&nbsp;Scott X. Chang ,&nbsp;Christoph Müller","doi":"10.1016/j.earscirev.2025.105251","DOIUrl":"10.1016/j.earscirev.2025.105251","url":null,"abstract":"<div><div>Iron (Fe) and nitrogen (N), prevalent elements in the pedosphere, exhibit distinctly different properties, while a variety of complex interactions exist between Fe and N across ecosystems. On the one hand, some interactions, such as adsorption and coprecipitation, facilitate N retention in the presence of poorly soluble Fe(III) oxides or Fe(III)-bearing clay minerals. On the other hand, Fe participates in N cycling through biochemical processes such as ammonium oxidation coupled with Fe(III) reduction, and nitrate-reducing Fe(II) oxidation. As such, the effects of Fe on N transformations are variable; Fe can promote shifts between “N-rich” and “N-lean” conditions in soils and sediments. Consequently, modifying the availability of Fe can control these transformations. This regulatory mechanism is influenced by factors such as soil pH, structure, substrate availability (Fe, N, and carbon), vegetation type, microbial community composition, and the presence of electron shuttles between N compounds and Fe(III) oxides. Each of these factors can resulting in multiple synergistic effects on Fe<img>N coupling, making the prediction of changes in the soil N pool challenging. This review aimed to evaluate the driving mechanisms, significance, and effects of various factors on Fe<img>N coupling, thereby providing a basis for understanding geochemical element cycling and informing human intervention.</div></div>","PeriodicalId":11483,"journal":{"name":"Earth-Science Reviews","volume":"270 ","pages":"Article 105251"},"PeriodicalIF":10.0,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144860697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}