地球科学最新文献

{"title":"Issue Information & Members form","authors":"","doi":"10.1002/lno.70068","DOIUrl":"https://doi.org/10.1002/lno.70068","url":null,"abstract":"","PeriodicalId":18143,"journal":{"name":"Limnology and Oceanography","volume":"70 4","pages":"iv"},"PeriodicalIF":3.8,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lno.70068","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143875504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Wet-Bulb Temperature Extremes Locally Amplified by Wet Soils","authors":"G. Chagnaud,&nbsp;C. M. Taylor,&nbsp;L. S. Jackson,&nbsp;C. E. Birch,&nbsp;J. H. Marsham,&nbsp;C. Klein","doi":"10.1029/2024GL112467","DOIUrl":"https://doi.org/10.1029/2024GL112467","url":null,"abstract":"<p>Wet-bulb temperature extremes (WTEs) occur due to a combination of high humidity and temperature, and are hazardous to human health. Alongside favourable large-scale conditions, surface fluxes play an important role in WTEs; yet, little is known about how land surface heterogeneity influences them. Using a 10-year, pan-African convection-permitting model simulation, we find that most WTEs have spatial extents <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mo>&lt;</mo>\u0000 </mrow>\u0000 <annotation> ${&lt; } $</annotation>\u0000 </semantics></math>2,000 <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <msup>\u0000 <mtext>km</mtext>\u0000 <mn>2</mn>\u0000 </msup>\u0000 </mrow>\u0000 <annotation> ${text{km}}^{2}$</annotation>\u0000 </semantics></math>. They occur preferentially over positive soil moisture anomalies (SMA) typically following rainfall. The wet-bulb temperature is locally amplified by 0.5–0.6<span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mo>°</mo>\u0000 </mrow>\u0000 <annotation> ${}^{circ}$</annotation>\u0000 </semantics></math>C in events associated with smaller-scale SMA (50 km across) compared to events with larger-scale SMA (300 km across). A mesoscale cifrculation, resulting from stronger spatial contrasts of sensible heat flux, more efficiently concentrates moist, warm air in a shallower boundary layer. This mechanism could explain the underestimation of peak Twb values in coarser-resolution products. The role of antecedent SMA from recent rainfall may help issue localized early warnings.</p>","PeriodicalId":12523,"journal":{"name":"Geophysical Research Letters","volume":"52 8","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024GL112467","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143871782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Regime Shift in Arctic Ocean Sea-Ice Extent","authors":"Harry L. Stern","doi":"10.1029/2024GL114546","DOIUrl":"https://doi.org/10.1029/2024GL114546","url":null,"abstract":"<p>A regime shift is an abrupt, substantial, and persistent change in the state of a system. We show that a regime shift in the September Arctic sea-ice extent (SIE) occurred in 2007. Before 2007, September SIE was declining approximately linearly. In September 2007, SIE had its largest year-to-year drop in the entire 46-year satellite record (1979–2024). Since 2007, September SIE has fluctuated but exhibits no long-term trend. The regime shift in 2007 was caused by significant export and melt of older and thicker sea ice over the previous 2–3 years, as documented in other studies. We test alternatives to the traditional linear model of declining September SIE, and discuss possible explanations for the lack of a trend since 2007.</p>","PeriodicalId":12523,"journal":{"name":"Geophysical Research Letters","volume":"52 8","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024GL114546","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143871787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Cold Biases in the Soil and Surface Air Temperature Simulations of RegCM4.7 Model Over the Tibetan Plateau in Cold Seasons Reduced by Adopting an Improved Snow Cover Fraction Scheme","authors":"Jiangxin Luo,&nbsp;Anning Huang,&nbsp;Xingwen Jiang,&nbsp;Meng Xu,&nbsp;Xin Miao,&nbsp;Chunlei Gu,&nbsp;Xinsheng Zhu","doi":"10.1029/2025JD043507","DOIUrl":"https://doi.org/10.1029/2025JD043507","url":null,"abstract":"<p>In cold seasons, global and regional climate models exhibit consistent cold biases in the soil and surface air temperature simulations on the Tibetan Plateau (TP), while the overestimated snow cover fraction (SCF) is treated as one of crucial factors leading to the cold biases. To partially solve this issue, this study adopts an improved SCF scheme that adequately consider the impact of sub-grid terrain relief on snow cover into the Regional Climate Model version 4.7 (RegCM4.7) coupled with the CLM4.5 land surface model to enhance the model skill. Results show that adopting the improved SCF scheme in RegCM4.7 model can significantly reduce the SCF overestimation on the TP produced by the original model, leading to obvious improvements in the surface albedo, soil and surface air temperature simulations in cold seasons. Mechanism analysis indicates that the sub-grid terrain relief suppresses the rapid increase of SCF with snowfall and makes the ground more difficult to be fully covered by snow, resulting in the overestimation of SCF obviously reduced and thereafter the surface albedo decreased. It further causes the ground surface to absorb more solar radiation and then more heat released to the overlying atmosphere and deep soils. Thereafter, the cold biases in the soil and surface air temperature simulations on the TP in cold seasons can be clearly reduced. This study highlights that considering the impact of the sub-grid topography relief on snow cover in numerical models is one of the effective ways for reducing the cold biases on the TP.</p>","PeriodicalId":15986,"journal":{"name":"Journal of Geophysical Research: Atmospheres","volume":"130 8","pages":""},"PeriodicalIF":3.8,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143871791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diagenetic Features Reveal the Influence of the Greenheugh Pediment on the Alteration History of Gale Crater, Mars","authors":"Jordan Ando,&nbsp;Rachel Y. Sheppard,&nbsp;Alexander B. Bryk,&nbsp;Vivian Sun,&nbsp;Christina H. Seeger,&nbsp;Abigail A. Fraeman,&nbsp;Alivia M. Eng,&nbsp;Linda Kah,&nbsp;Amanda N. Rudolph","doi":"10.1029/2024JE008891","DOIUrl":"https://doi.org/10.1029/2024JE008891","url":null,"abstract":"<p>We investigate the nature of diagenetic features encountered by the Curiosity rover within Mount Sharp from sols 1900–3,049. Using Curiosity's Mars Hand Lens Imager and Mast Camera (Mastcam), we classify diagenetic features into established morphological categories and assess their spatial distribution, density, and size. Our analysis reveals variations in diagenetic feature density and morphology linked to stratigraphic boundaries and proximity to the Greenheugh Pediment unconformity, highlighting the role of diagenetic fluids in shaping these features. We find a reduction in diagenetic features at the Jura to Knockfarril Hill member boundary, a spike in feature abundance at the Knockfarril Hill to Glasgow member boundary, and a strong statistical relationship between feature abundance and vertical distance from the Greenheugh Pediment. These trends point to a dynamic history of diagenetic fluid flow, influenced by variations in porosity, permeability, and structural controls, including the presence of the Pediment.</p>","PeriodicalId":16101,"journal":{"name":"Journal of Geophysical Research: Planets","volume":"130 4","pages":""},"PeriodicalIF":3.9,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024JE008891","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143871727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Uncertainties in the Projection of Sterodynamic Sea Level in CMIP6 Models","authors":"Chenyang Jin,&nbsp;Hailong Liu,&nbsp;Pengfei Lin,&nbsp;Kewei Lyu,&nbsp;Yiwen Li","doi":"10.1029/2024GL113691","DOIUrl":"https://doi.org/10.1029/2024GL113691","url":null,"abstract":"<p>Sterodynamic sea level (SdynSL) is an essential component of sea level that climate models can simulate directly. Here, we disentangle the impacts of intermodel uncertainty, internal variability, and scenario uncertainty on SdynSL projections from Coupled Model Intercomparison Project Phase 6 (CMIP6) models. Regarding the global mean, intermodel (scenario) uncertainty dominates before (after) ∼2070, while internal variability is negligible. At the regional scale, intermodel uncertainty is the largest contributor, whereas internal variability plays a secondary role mainly in the tropical Indo-Pacific Ocean. Scenario uncertainty becomes significant in certain regions toward the end of this century. The anthropogenic signal of global mean SdynSL emerges at the beginning of this century relative to 1971–2000. In contrast, the anthropogenic signals of regional SdynSL are likely to emerge over 70% of the global ocean by the 2090s, which could be advanced to the 2040s if model differences can be totally eliminated.</p>","PeriodicalId":12523,"journal":{"name":"Geophysical Research Letters","volume":"52 8","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024GL113691","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143871786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Flow Heterogeneity Controls Dissolution Dynamics in Topologically Complex Rocks","authors":"Z. Kanavas,&nbsp;J. Jimenez-Martinez,&nbsp;F. Miele,&nbsp;J. Nimmo,&nbsp;V. L. Morales","doi":"10.1029/2024GL114369","DOIUrl":"https://doi.org/10.1029/2024GL114369","url":null,"abstract":"<p>Rock dissolution is a common subsurface geochemical reaction affecting pore space properties, crucial for reservoir stimulation, carbon storage, and geothermal energy. Predictive models for dissolution remain limited due to incomplete understanding of the mechanisms involved. We examine the influence of flow, transport, and reaction regimes on mineral dissolution using 29 time-resolved data from 3D rocks. We find that initial pore structure significantly influences the dissolution pattern, with reaction rates up to two orders of magnitude lower than batch conditions, given solute and fluid-solid boundary constraints. Flow unevenness determines the location and rate of dissolution. We propose two models describing expected dissolution patterns and effective reaction rates based on dimensionless metrics for flow, transport, and reaction. Finally, we analyze feedback between evolving flow and pore structure to understand conditions that regulate/reinforce dissolution hotspots. Our findings underscore the major impact of flow arrangement on reaction-front propagation and provide a foundation for controlling dissolution hotspots.</p>","PeriodicalId":12523,"journal":{"name":"Geophysical Research Letters","volume":"52 8","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024GL114369","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143871736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sound Velocities of Zoisite at High Pressures and Temperatures and Implications for the Water Content in Subducting Oceanic Crust","authors":"Rui Zhang,&nbsp;Duojun Wang,&nbsp;Nao Cai","doi":"10.1029/2024JB030238","DOIUrl":"https://doi.org/10.1029/2024JB030238","url":null,"abstract":"&lt;p&gt;The &lt;i&gt;P&lt;/i&gt;- and &lt;i&gt;S&lt;/i&gt;-wave velocities of zoisite were measured simultaneously using ultrasonic techniques under pressure and temperature of up to 11 GPa and 773 K, respectively. The results indicate that the velocity of zoisite increases with increasing pressure and decreases with increasing temperature. Using finite strain fitting, values of &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;msub&gt;\u0000 &lt;mi&gt;K&lt;/mi&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mi&gt;S&lt;/mi&gt;\u0000 &lt;mn&gt;0&lt;/mn&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/msub&gt;\u0000 &lt;mo&gt;=&lt;/mo&gt;\u0000 &lt;mn&gt;129&lt;/mn&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mo&gt;(&lt;/mo&gt;\u0000 &lt;mn&gt;3&lt;/mn&gt;\u0000 &lt;mo&gt;)&lt;/mo&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;mspace&gt;&lt;/mspace&gt;\u0000 &lt;mtext&gt;GPa&lt;/mtext&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt; ${K}_{S0}=129(3)hspace*{.5em}text{GPa}$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;, &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;msubsup&gt;\u0000 &lt;mi&gt;K&lt;/mi&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mi&gt;S&lt;/mi&gt;\u0000 &lt;mn&gt;0&lt;/mn&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mo&gt;′&lt;/mo&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/msubsup&gt;\u0000 &lt;mo&gt;=&lt;/mo&gt;\u0000 &lt;mn&gt;4.9&lt;/mn&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt; ${K}_{S0}^{mathit{prime }}=4.9$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;(3), &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;msub&gt;\u0000 &lt;mi&gt;G&lt;/mi&gt;\u0000 &lt;mn&gt;0&lt;/mn&gt;\u0000 &lt;/msub&gt;\u0000 &lt;mo&gt;=&lt;/mo&gt;\u0000 &lt;mn&gt;73&lt;/mn&gt;\u0000 &lt;mspace&gt;&lt;/mspace&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mo&gt;(&lt;/mo&gt;\u0000 &lt;mn&gt;2&lt;/mn&gt;\u0000 &lt;mo&gt;)&lt;/mo&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;mspace&gt;&lt;/mspace&gt;\u0000 &lt;mtext&gt;GPa&lt;/mtext&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt; ${G}_{0}=73hspace*{.5em}(2)hspace*{.5em}text{GPa}$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;, &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;msubsup&gt;\u0000 &lt;mi&gt;G&lt;/mi&gt;\u0000 &lt;mn&gt;0&lt;/mn&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mo&gt;′&lt;/mo&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/msubsup&gt;\u0000 &lt;mo&gt;=&lt;/mo&gt;\u0000 &lt;mn&gt;2.0&lt;/mn&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt; ${G}_{0}^{mathit{prime }}=2.0$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;(2), &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;msubsup&gt;\u0000 &lt;mi&gt;G&lt;/mi&gt;\u0000 &lt;mn&gt;0&lt;/mn&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mo&gt;″&lt;/mo&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/msub","PeriodicalId":15864,"journal":{"name":"Journal of Geophysical Research: Solid Earth","volume":"130 4","pages":""},"PeriodicalIF":3.9,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143871795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Zinc isotope evidence for dynamic nutrient cycling regulation of organic carbon burial in the mid-Proterozoic ocean","authors":"Chengshuai Yuan ,&nbsp;Xiaomei Wang ,&nbsp;Sheng-Ao Liu ,&nbsp;Jiayi Ai ,&nbsp;Yuntao Ye ,&nbsp;Tianyi Wang ,&nbsp;Shuichang Zhang","doi":"10.1016/j.epsl.2025.119367","DOIUrl":"10.1016/j.epsl.2025.119367","url":null,"abstract":"<div><div>Episodic deposition of marine organic-rich sediments during the mid-Proterozoic (1.8–0.8 Ga) stands in contrast to the long‐term environmental stasis at that time. Existing conceptual models of these sediments highlight the key role of nutrient supply in regulating marine productivity and related organic carbon burial, yet direct geochemical evidence linking these events remains rare. Zinc (Zn) is a pivotal micronutrient for biological productivity, and zinc isotopic compositions (δ⁶⁶Zn) of seawater are highly sensitive to fluctuations in the marine carbon cycle. In this study, we present high-resolution zinc isotopes, together with major and trace element data from the ca. 1.4 Ga organic-rich sediments of the middle Velkerri Formation, McArthur Basin, northern Australia. Stratigraphic variations in δ⁶⁶Zn values of the middle Velkerri Formation exhibit two contrasting intervals corresponding to enrichments in sedimentary zinc concentrations and total organic carbon (TOC) content. The initial negative δ⁶⁶Zn excursion occurred in the context of enhanced continental weathering and consistent upwelling intensity, with terrigenous sources dominating the influx of isotopically light Zn into the ocean. The subsequent interval exhibits positive shift in δ⁶⁶Zn that is synchronous with the positive carbon isotope excursion and a decline in Zn/TOC ratios, indicating an ocean-wide drawdown of isotopically light zinc driven by enhanced organic carbon burial. Increased sequestration of organic carbon may have promoted the pulse of atmospheric oxygenation during the mid-Proterozoic, providing a further backdrop for early biological evolution. The results of this study suggest that dynamic nutrient cycling in the mid-Proterozoic ocean can trigger a set of feedbacks that temporarily caused the carbon cycle to deviate from its long‐term stability.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"661 ","pages":"Article 119367"},"PeriodicalIF":4.8,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143868482","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":"Role of sentinel-2 remotely sensed data in assisting stratigraphic subdivision of a Paleogene carbonate sequence, Jabal Hafit, UAE-Oman","authors":"Osman Abdelghany ,&nbsp;Abdel-Rahman Fowler ,&nbsp;Karim Abdelmalik ,&nbsp;Abdelaziz Al Azzani ,&nbsp;Mahmoud Abu Saima","doi":"10.1016/j.ejrs.2025.04.003","DOIUrl":"10.1016/j.ejrs.2025.04.003","url":null,"abstract":"<div><div>SENTINEL-2 remote sensing data for Jabal Hafit mountain, south of Al Ain, UAE, were obtained for the purpose of mapping the stratigraphic units in this monotonous carbonate-dominant Lower Eocene to Oligocene sequence. The data was processed using spectral reflectance curves collected from representative rock samples. After resampling of measured spectral curves of studied samples, guided by an algorithm to find the sensitive bands, a Principal Component-based false-colour image was obtained and then improved by Decorrelation Stretch (DS). The resulting image was interpreted in a small study area in Oman where the geology was uninterrupted by human activities. Correlation of colour bands in the study area with known stratigraphic units for the region was applied to the DS image for the entire Jabal Hafit mountain area. The results show excellent discrimination of the formations and members of the Hafit Paleogene succession. Other features revealed include the extent and lateral facies changes shown by these units.</div></div>","PeriodicalId":48539,"journal":{"name":"Egyptian Journal of Remote Sensing and Space Sciences","volume":"28 2","pages":"Pages 228-239"},"PeriodicalIF":3.7,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143870168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}