Arabian Journal of Geosciences最新文献

{"title":"A preliminary investigation into the relationship between seismicity and precipitation in South Eastern Ghana","authors":"Maximillian-Robert Selorm Doku,&nbsp;Isaac Larbi,&nbsp;Frederick Sam,&nbsp;Kingsley Kwaah Tandoh,&nbsp;Paulina Ekua Amponsah","doi":"10.1007/s12517-026-12501-8","DOIUrl":"10.1007/s12517-026-12501-8","url":null,"abstract":"<div>\u0000 \u0000 <p>Earthquake occurrence is primarily controlled by tectonic stress accumulation; however, external processes such as hydrological loading may influence the timing of fault failure. This study investigates the potential relationship between precipitation and seismicity in southeastern Ghana. An updated earthquake catalogue covering the period 1615–2018 was compiled to evaluate spatial and temporal patterns of seismic activity in the Greater Accra region and surrounding areas. For the statistical analysis, annual seismicity data for 1987–2018 were compared with precipitation records obtained from meteorological stations in Accra, Tema, Ada, Ho, and Takoradi. Pearson correlation and time-lag analyses were applied to examine possible associations between rainfall variability and earthquake occurrence. Results show a moderate positive correlation between annual precipitation and seismicity (r = 0.36–0.40), with statistical significance observed at zero-year lag (p = 0.043). This suggests that increased rainfall may contribute to short-term modulation of seismic activity, possibly through pore-pressure changes and hydromechanical stress adjustments along pre-existing fault systems such as the Coastal Boundary and Akuapem fault zones. However, the absence of significant correlations at other lag periods indicates that precipitation alone does not control earthquake occurrence. These results advise that while tectonic processes remain the main driver of seismicity in southeastern Ghana, hydrological processes may act as secondary triggers influencing earthquake timing.</p>\u0000 </div>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"19 5","pages":""},"PeriodicalIF":1.827,"publicationDate":"2026-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147738779","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":"Delineation of radioactive and mineralized zones in NE Desert of Egypt: integration of structural analysis and airborne geophysical data","authors":"Mohamed S. Mostafa,&nbsp;Hussein F. Abd El Salam,&nbsp;Mohamed A. Shaheen,&nbsp;Ahmed E. Abdel Gawad","doi":"10.1007/s12517-026-12461-z","DOIUrl":"10.1007/s12517-026-12461-z","url":null,"abstract":"<div>\u0000 \u0000 <p>The main objective of this study is to assess the linkage between airborne geophysical data and geological structures to delineate radioactive and mineralized zones at Wadi El-Urf environs. Airborne gamma-ray spectrometry reveals different levels oscillating from 2 to 18.8 Ur, 0.7–3.5%, 0.1–10.5 ppm and 1.3–27.8 ppm for total count (T.C), K, eU and eTh, respectively. The highest values coincide with monzogranite and alkali feldspar granite. Two magnetic zones have been identified as a result of magnetic characters from total magnetic map. Besides, the reduced to pole magnetic anomaly map has shown a similar magnetic character to total magnetic map but with major changes at different corners. The average estimated depths to the magnetic sources deduced from power spectrum curve reached 450 and 950 m for shallow and deep seated structures. The analyzed aeromagnetic data show many trends (E–W, NW, NE, NNW, and N–S), which control the distribution of mineralization. Depth levels of geological contacts and faults that represented pathways for altered and mineralized zones varied from &lt; 500 to &gt; 700 m (Euler deconvolution). From detailed geological structures, there is a remarkable temporal association of mineralization to extensional tectonics, as extensional trends oriented E–W and N–S directions inferred from reactivated NNW, NNE, WNW and ENE faults. The integration of geological structures with airborne geophysical data reveal that copper, barite and gold deposits are mostly spread along intersection of extensional sinistral shear zones have NW trend with the dextral shear zones that have an ENE trend.</p>\u0000 </div>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"19 5","pages":""},"PeriodicalIF":1.827,"publicationDate":"2026-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147738337","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":"Correction to: Bearing capacity of shallow foundations: a focus on the depth factors in combination with the respective N-factors","authors":"Lysandros Pantelidis","doi":"10.1007/s12517-026-12496-2","DOIUrl":"10.1007/s12517-026-12496-2","url":null,"abstract":"","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"19 5","pages":""},"PeriodicalIF":1.827,"publicationDate":"2026-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12517-026-12496-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147737836","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":"Correction to: Comprehensive tsunami hazard assessment for Wudam As-Sahil, Northern Oman: Integrating deterministic and probabilistic approaches","authors":"Issa El-Hussain,&nbsp;Zaid Al-Habsi,&nbsp;Rachid Omira,&nbsp;Ahmed Deif,&nbsp;Adel Mohamed,&nbsp;Maria Ana Baptista,&nbsp;Yousuf Al-Shijbi","doi":"10.1007/s12517-026-12498-0","DOIUrl":"10.1007/s12517-026-12498-0","url":null,"abstract":"","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"19 5","pages":""},"PeriodicalIF":1.827,"publicationDate":"2026-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147737693","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":"Correction to: Interaction assessment of air pollutants and environmental variables in Aures, Algeria","authors":"Imene Benmakhlouf,&nbsp;Hassen Benmessaoud,&nbsp;dJamal Bengusmia,&nbsp;Mohamed Elhag","doi":"10.1007/s12517-026-12494-4","DOIUrl":"10.1007/s12517-026-12494-4","url":null,"abstract":"","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"19 5","pages":""},"PeriodicalIF":1.827,"publicationDate":"2026-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147737696","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":"Influence of mineralogy on the bearing capacity of soils under shallow foundations: application to the geotechnical mapping of soils in Penka-Michel (Western Cameroon)","authors":"Thiery Blondel Suffeu Talla,&nbsp;Eric Donald Teikeu Ngueveu,&nbsp;Dérryl Médard Foko Tchanamou,&nbsp;Verlène Hardy Njuikom Djoumbi,&nbsp;Gervaise Kieufack,&nbsp;Bertille Ilalie Manefouet Kentsa,&nbsp;Jean Victor Kenfack,&nbsp;Armand Sylvain Ludovic Wouatong","doi":"10.1007/s12517-026-12493-5","DOIUrl":"10.1007/s12517-026-12493-5","url":null,"abstract":"<div>\u0000 \u0000 <p>This study aims to evaluate the ultimate bearing capacity of soils supporting shallow foundations by combining the c–φ laboratory method with light dynamic penetrometer (DPL) testing, while assessing the influence of soil mineralogy. The approach is applied to the geotechnical mapping of soils in the Penka-Michel area (Western Cameroon). To this end, DPL soundings were carried out, and relatively intact soil samples were collected for laboratory determination of geomechanical properties and mineralogical composition using X-ray diffraction (XRD). The geotechnical characterization indicates that the soils belong mainly to highly plastic clays and silts (A3) and sands with fines (A2), according to the GTR classification system. The internal friction angle ranges from 15.33° to 31.86°. Ultimate bearing capacities derived from in-situ testing vary between 121.04 and 1578.82 kPa, compared with values ranging from 388.04 to 1519.23 kPa obtained using the c–φ method. XRD analyses reveal the presence of kaolinite, quartz, gibbsite, goethite, alkali feldspars, plagioclase, anatase, and hematite. The soils exhibit low to high compressibility, with compression indices between 0.019 and 0.113. The results indicate that mineralogical composition is significantly correlated with the mechanical behavior of the soils, with correlation coefficients exceeding 0.7. Based on these findings, the geotechnical mapping distinguishes three soil classes: low bearing capacity soils with high compressibility, soils with moderate mechanical behavior, and soils with high bearing capacity suitable for heavy structures. The proposed geotechnical map provides a useful preliminary decision-support tool for identifying areas favorable for construction.</p>\u0000 </div>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"19 5","pages":""},"PeriodicalIF":1.827,"publicationDate":"2026-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147737694","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":"Reservoir characterization and static modelling of post-messinian reservoirs in kamose field, offshore North Sinai development lease, Egypt","authors":"Nesma Abd Elaziz Fouad,&nbsp;Tharwat Abdel Fattah,&nbsp;Hatem F. Ewida,&nbsp;Mahmoud M. Badawy,&nbsp;Ahmed I. Diab,&nbsp;Manal Osman","doi":"10.1007/s12517-026-12473-9","DOIUrl":"10.1007/s12517-026-12473-9","url":null,"abstract":"<div>\u0000 \u0000 <p>This study focuses on the Neogene-Quaternary subsurface sedimentary succession of the Kamose field, Offshore North Sinai Concession, Egypt, to discover new natural gas resources by integrating all the available seismic data that was processed and analyzed using the PETREL software, with the available well-logging data from the A-1 well at the Kamose field, to evaluate reservoir potential. The seismic interpretation divided the investigated succession into two Mega-sequences: the Pre-Messinian and Post-Messinian mega-sequences, with the targeted reservoir intervals belonging to the Post-Messinian sequence. Several structural features are identified, including Growth faults, listric faults, roll-over fold and salt diapir, with a dominant NW–SE structural trend.</p>\u0000 <p>The detailed petrophysical analysis of the A-l well logs data revealed two sandstone intervals interpreted as gas-bearing zones. The quantitative petrophysical evaluation indicates favorable reservoir properties, characterized by low shale volume (23–29%), high total porosity (36–38%), high effective porosity (30–31%), low water saturation (23–42%), and low bulk volume of water (0.07–0.12). The direct hydrocarbon indicator technique (DHI) highlights one of these intervals (zone-1) as a prominent bright spot, attributed to its considerable thickness of approximately 74 m.</p>\u0000 <p>Furthermore, the comparative analysis between the newly delineated seismic bright spots and those encountered in the drilled A-1 well suggests a significantly high probability of successful gas prospect identification within the Pliocene–Pleistocene interval of the North Sinai Concession. Overall, this study applies an integrated seismic–petrophysical workflow on post-Messinian reservoirs in the Kamose Field, providing new insights into the gas potential of Pliocene sandstones offshore the Nile Delta, supporting future development planning.</p>\u0000 </div>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"19 5","pages":""},"PeriodicalIF":1.827,"publicationDate":"2026-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147737695","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":"Characteristics of ultra-deep shale reservoirs of the Permian Wujiaping Formation and its significance for shale gas exploration in the Hongxing area, East Sichuan, China","authors":"Luo Bin,&nbsp;Xiao Suyun,&nbsp;Zhao Shuai,&nbsp;Zhang Daohong,&nbsp;Zeng Furong","doi":"10.1007/s12517-026-12464-w","DOIUrl":"10.1007/s12517-026-12464-w","url":null,"abstract":"<div>\u0000 \u0000 <p>This study investigates the characteristics and controlling factors of deep-to-ultra-deep shale reservoirs in the Permian Wujiaping Formation, Eastern Sichuan, to address key questions on reservoir feasibility, pore evolution, and quality determinants at depths of 4500–6000 m, thereby guiding future exploration. Our research is based on a systematic analysis of critical data from multiple shale gas drilling wells penetrating the 4,500 to 6,000 m depth interval in the Hongxing area. Reservoir porosity remains effectively high and shows minimal reduction within the 4500–6000 m depth range. Pore systems evolve with depth: organic pores become smaller, less connected, and morphologically simpler. Reservoir quality is primarily controlled by the synergy of biogenic silica (as the fundamental substrate for pores) and fluid over-pressure (as the key mechanism for porosity preservation). The deep-to-ultra-deep section holds vast potential, with a preliminary resource estimate of 7542.69 × 10⁸ m³ for the second section of the Wujiaping Formation in the study area. This study confirms the significant potential of deep shale gas exploration, highlighting that high-quality reservoirs can develop and be maintained even at ultra-deep conditions, governed by specific geological factors.</p>\u0000 </div>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"19 5","pages":""},"PeriodicalIF":1.827,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147737685","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":"Basic characterization of the Minim-Martap alumina deposit (Adamawa, Cameroon) from the Beatrice and Agnes plateaus","authors":"Jean Fabrice Amougou Ayissi,&nbsp;Estelle Philomene Nga Essomba Tsoungui,&nbsp;Aurèlie Kamwa Ngamy,&nbsp;Paul Didier Kamdem Kuate,&nbsp;Finalise Komofor Ngopuh,&nbsp;Robinson Tchatchueng,&nbsp;Sifeu Takougang Kingni","doi":"10.1007/s12517-026-12462-y","DOIUrl":"10.1007/s12517-026-12462-y","url":null,"abstract":"<div>\u0000 \u0000 <p>The Minim-Martap bauxite deposit in the Adamawa region is a major, high-grade resource developed by Canyon Resources for large-scale export, featuring over 1.1 billion tonnes of resource and 144 million tonnes of proven reserves (alumina, and low silica). The characterization of alumina deposits from the Minim-Martap Agnes and Beatrice plateau is the purpose of this work. Twenty-five (25) samples of the deposits were subjected to petrographic, X-ray fluorescent (XRF), and physico-mechanical méthodes. Chemical analysis shows that the bauxite deposits are mainly composed of aluminum oxide (Al₂O₃), silica oxide (SiO₂), and iron oxide (Fe₂O₃). The physico-mechanical analysis reveals a specific gravity of 2.68. This analysis equally shows that the Fe₂O₃/Al₂O₃ ratio is less than 1, which is important to the economic viability for industrial-scale alumina production. The extraction of high-grade, low-silica ore is suitable for alumina refining, which increases a robust bauxite-to-aluminum industrial relationship by boosting Cameroon’s export and industrial base. For scientific relevant, this study enhances lateritic bauxitization and geological evolution, high-precision mineralogical characterization, and metallurgical optimization.</p>\u0000 </div>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"19 5","pages":""},"PeriodicalIF":1.827,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147737686","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":"The makeng deposit, Southeastern China: a distal skarn iron deposit constrained by skarn mineralogy and molybdenite Re-Os geochronology","authors":"Guofeng Wang,&nbsp;Kai Zhang,&nbsp;Shiwei Zhang,&nbsp;Zhilong Deng","doi":"10.1007/s12517-026-12487-3","DOIUrl":"10.1007/s12517-026-12487-3","url":null,"abstract":"<div>\u0000 \u0000 <p>The Makeng iron deposit is the largest Fe deposit in eastern China. It is hosted within Middle Carboniferous to Lower Permian limestones. The Cretaceous Juzhou and Dayang granites intruded on both sides of the Makeng mining area. The main mineral assemblage within the Makeng iron orebody is characterized by magnetite, pyroxene, and garnet, with lesser amounts of quartz. Two types of garnet associated with magnetite occur in the skarn: isotropic garnet (And_92.0−99.9Gro_0.0−3.4Pyr_0.1−4.7) with a narrow compositional range and anisotropic garnet (And_92.3−98.2Gro_0.0−5.2Pyr_1.8−2.6 to And_8.9−71.9Gro_23.7−87.8Pyr_2.2−4.4) with andradite–grossular compositions. Three kinds of pyroxene were further identified in the deposit: type 1 hedenbergite (Di_6.6−37.5Jo_7.0−10.4Hd_55.1−84.9), type 2 diopside (Di_83.1−95.9Jo_1.5−7.3Hd_2.7−9.6), and type 3 johannsenite (Di_0.7−2.1Jo_82.9−93.2Hd_4.8−16.4) replacing andradite. Type 1 pyroxene (hedenbergite) is replaced by the andradite, magnetite, and quartz assemblage, indicating the following replacement reaction: 9Hd + 2O₂ = 3Ad + 9Qz + Mt. Type 2 pyroxene (diopside) together with magnetite occurs as interstitial grains between garnet crystals. Based on mineralogical and textural evidence, the magnetite and related skarn minerals (diopside and andradite) were formed under more oxidizing conditions with a Log <i>f</i>O₂ of − 26 to − 15. The type 1, 2, and 3 pyroxenes have high Mn/Fe ratios, which are characteristics of pyroxenes from distal skarn deposits. The Re-Os dating of molybdenite coexisting with magnetite yielded an age of 143.2 ± 3.3 Ma, which indicates the age of the iron mineralization. These lines of evidence indicate that the Makeng iron deposit is a distal skarn–type iron deposit and that it is genetically associated with Cretaceous intrusions.</p>\u0000 </div>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"19 5","pages":""},"PeriodicalIF":1.827,"publicationDate":"2026-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147737393","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}