{"title":"Paleoseismic analysis of clastic injection dikes within the prehistoric liquefaction fields of Kashmir Karewas","authors":"Rais Ahmad Khan","doi":"10.1007/s12517-025-12196-3","DOIUrl":"10.1007/s12517-025-12196-3","url":null,"abstract":"<div><p>Clastic injection dikes were identified within the prehistoric liquefaction fields of Kashmir Karewas, India. Clastic injection dikes are the geological evidence of the past earthquakes formed by seismic liquefaction of susceptible Karewa sediments. The study of clastic injection dikes proves vital paleoseismic tools for understanding prehistoric seismicity. Moderate to strong earthquakes often trigger soil liquefaction that can cause more destruction than the earthquake itself. This study will be helpful in answering: where was the possible seismic source? What were the magnitude, intensity, and PGA of the prehistoric earthquakes? What were the energy values of past earthquakes that were expended to generate observed clastic injection dikes? Empirical relationships were used to estimate paleoseismicity and site-specific seismic liquefaction hazard. The seismic parameters of past earthquakes were obtained using width, height, and regional pattern of observed clastic injection dikes. Paleomagnitudes obtained in this study were computed as a function of paleoepicentral distance,<span>({W}_{cd})</span> and <span>({h}_{cd})</span> values of the clastic injection dikes. <span>({M}_{S})</span> values were ranging from 5.0 to 7.7, and their equivalent <span>({M}_{W})</span> values were ranging from 5.4 to 7.7. The <span>({I}_{L})</span> values computed as a function of <span>({W}_{cd})</span> and <span>({h}_{cd})</span> values of clastic injection dikes were ranging from 6.06 to 13.97. PGA values computed as a function of <span>({I}_{L})</span> values were ranging from 0.07 to 3.75 g. Tremendous amount of <span>({E}_{o})</span> values in joules were expended to generate the observed clastic injection dikes corresponding to <span>({M}_{s})</span> and their equivalent <span>({M}_{w})</span> values. The incorporation of obtained <span>({E}_{o})</span> values in mass-energy equivalence relationship suggests that there is a small amount of Earth’s mass loss during an earthquake. The findings of this study suggest that Kashmir Valley is seismically active region and is giving credible answers to paleoseismic problems. The results of this study provide data set to engineers, urban planners, and policy makers to design earthquake-resistant infrastructure to withstand against great earthquakes in the future.</p></div>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"18 3","pages":""},"PeriodicalIF":1.827,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143455407","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":"A numerical study of the effect of boundary conditions on liquefaction","authors":"Jagan M. Padbidri","doi":"10.1007/s12517-025-12208-2","DOIUrl":"10.1007/s12517-025-12208-2","url":null,"abstract":"<div><p>Cyclic triaxial tests are one of the common methods to study the liquefaction behaviour of granular material. Here, the liquefaction behaviour of densely packed granular material is studied using numerical experiments with the discrete element method, for 2D particle assemblies. Cyclic biaxial loading is imposed via two boundary conditions, viz. using prescribed velocity for rigid platens and a penalty method that imposes corrective forces on the boundary particles that deviate from an affine velocity field. Simulations are performed for different void fractions of the assembly and for both boundary conditions. The initial void ratio and the boundary conditions are found to influence the liquefaction resistance of the assembly. The number of cycles for liquefaction increases with a greater constraint on the boundary. Further, the initiation to liquefaction occurs due to a gradual weakening of the force chain structure over the entire assembly. Also, particle rolling may play an important role in the rearrangement of particles and needs further exploration.</p></div>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"18 3","pages":""},"PeriodicalIF":1.827,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143423017","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}
Godfrey Peter Mweemba, Olubunmi C. Adeigbe, Gilbert M. Chongwain, Khady Ndeye Ndiaye
{"title":"Paleoenvironment, deposition conditions, and geochemical characteristics of the Permian Karoo hydrocarbon source rocks, Mid-Zambezi Basin, Zambia, based on paleontology and geochemistry studies: a review","authors":"Godfrey Peter Mweemba, Olubunmi C. Adeigbe, Gilbert M. Chongwain, Khady Ndeye Ndiaye","doi":"10.1007/s12517-025-12207-3","DOIUrl":"10.1007/s12517-025-12207-3","url":null,"abstract":"<div><p>Hydrocarbon prospection and scholarly research have centered around three basins: the Barotse, Luangwa, and Mid-Zambezi Rift. Research work has so far been reliant on exposed sedimentary outcrops. However, basin correlation is challenging as relatively little work has been conducted to constrain the depositional ages of the Karoo Basin that outcrops in Zambia, despite their rich paleontological records. One such basin, the mid-Zambezi Basin, contains Karoo-aged sediments that have been studied since the 1970s, and it has been observed that the Madumabisa Mudstone fluvial sequence within the lacustrine origin overlies the coal-bearing sequence, the Permian Gwembe Coal. Studies have been done to fully characterize the petroleum system elements and processes in this part of the basin. A few thermal alteration index (TAI) values range from − 2 to + 2, total organic content (TOC) from 0.71 to 50.65 wt.%, hydrogen index from 90.68 to 168.85 mg HC/g TOC, and oxygen index from 1.35 to 22.6 mg CO2/g. Rock has been presented. There was little attention to non-coal-bearing sequences during the 1960s subsurface investigations and a small sampled area for palynological studies. Therefore, studies suggested that pollens and spores were not sufficiently abundant for quantitative analyses. Samples from previous work were thus far only subjected to standard palynological processing techniques. The occurrence of macrofossils and microfossils gives interest to further micropaleontological and geochemical studies; for significant microfossil distribution and frequency, TOC contributes to the conclusion of hydrocarbon potential.</p></div>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"18 3","pages":""},"PeriodicalIF":1.827,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143423444","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}
Josephine Biney, Blestmond A. Brako, Simon Kafui Gawu, Gordon Foli, Jonathan Quaye-Ballard
{"title":"The use of GIS/remote sensing in determining gold potential areas on the Paleoproterozoic Asankragwa gold belt, Ghana","authors":"Josephine Biney, Blestmond A. Brako, Simon Kafui Gawu, Gordon Foli, Jonathan Quaye-Ballard","doi":"10.1007/s12517-025-12192-7","DOIUrl":"10.1007/s12517-025-12192-7","url":null,"abstract":"<div><p>Remote sensing technique, which is not limited by accessibility, financial status, unusually large areal extent and climate when used at the initial stage, together with other geological data sets, will make an exploration process faster, easier and most importantly very efficient and cost-effective. There is limited information on this belt due to the size of the belt, complexity of the belt and the fact that it falls within the Kumasi Basin where mineralisation is not highly expected. Although the major structures on this belt are similar to that on the Ashanti belt, mineralisation on this belt has not been high as that on the Ashanti belt. This study seeks to use GIS to integrate geological methods with remote sensing methods to delineate mineralised zones on the Asankragwa gold belt (AGB) to produce information on anomalies which will entice exploration companies to explore further on this belt and to provide guidelines for grassroot explorers in areas where there is limited geochemical and geophysical information. Band combinations (bands 5, 4, 3 and 5, 6, 7), as well as band ratios (5/6, 5/7, 7/2 and 2/4), were implemented to the visible, near-infrared and shortwave infrared bands of Landsat 8, which were used to determine alterations in the study area. Lineaments were mapped from the Digital Elevation Model (DEM) of the area. About 80% of these lineaments were observed to be trending NE-SW. The structures contributed to about 70% of the anomalies observed in the area. The results of this investigation demonstrate the capability of the applied imagery enhancement methods in distinguishing different features, identifying hydrothermally altered rocks and structures as well as delineation of probable anomalies. It was observed that the effectiveness in the identification of mineralised zones was enhanced by integrating remote sensing data sets. Structures and alteration information obtained from remote sensing provided enough information for the delineation of gold potential areas on the entire belt.</p></div>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"18 3","pages":""},"PeriodicalIF":1.827,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143396739","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}
Georges M. Kasay, Anthony T. Bolarinwa, Olawale K. Aromolaran, Mohsin Raza, Parfait Mupenge, Yarsé B. Mavoungou, Thierry K. Maliva, Charles Nzolang
{"title":"Petrography and geochemistry of the granodiorite and dolerite of the Bingo complex, eastern DRC","authors":"Georges M. Kasay, Anthony T. Bolarinwa, Olawale K. Aromolaran, Mohsin Raza, Parfait Mupenge, Yarsé B. Mavoungou, Thierry K. Maliva, Charles Nzolang","doi":"10.1007/s12517-025-12201-9","DOIUrl":"10.1007/s12517-025-12201-9","url":null,"abstract":"<div><p>We have investigated granodiorite and dolerite dykes around the Bingo carbonatite cropping out in the western branch of the East African Rift System (EARS), eastern Democratic Republic of Congo (DRC). These dominantly N-S fracture-controlled dykes are emplaced in an older orthogneiss basement surrounding a Neoproterozoic carbonatite-bearing alkaline intrusive complex. Petrographic and geochemical studies of the granodiorite and dolerite intrusions were carried out to constrain the petrogenesis and tectonic setting of the rocks. Granodiorite is medium to coarse-grained, contain plagioclase of oligoclase to andesine composition, quartz, K-feldspar, hornblende, biotite and accessory magnetite, titanite, ilmenite, and zircon. Dolerite exhibits an ophitic texture with lath-shaped, randomly oriented plagioclase of andesine to labradorite composition embedded in large orthopyroxenes and clinopyroxenes. Accessory minerals include serpentine, altered olivine, amphiboles, magnetite, and ilmenite. The granodiorite is a metaluminous to weakly peraluminous, calc-alkaline. It is enriched in LREE (La<sub>N</sub>/Yb<sub>N</sub> = 10.91–22.28) and depleted in HREE with insignificant Eu (0.9–0.95) and negative anomalies in some high field strength elements (HFSEs) notably Ta, Nb, and Ti, which suggest melts generated in volcanic arc tectonic setting. The LREE (La<sub>N</sub>/Yb<sub>N</sub> = 1.97–2.92) for dolerite and the Eu anomaly ((Eu/Eu*)<sub>N</sub> 0.85–0.92) suggest a mantle-derived MORB melt probably contaminated by crustal materials during ascent. Emplacement of the dykes was aided by crustal extension and associated fracturing to develop dyke swarms of basic, calc-alkaline, and alkaline rocks.</p></div>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"18 3","pages":""},"PeriodicalIF":1.827,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143379794","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}
Théophile Njanko, Bertille Edith Bella Nke, Pierre Rochette, François Demory, Alexander Ndengwe, Innocent Tiseh Kunyimih
{"title":"Boula-Ibi granitic pluton syn-shearing emplacement during sinistral Neoproterozoic deformation: insights from microstructures and magnetic anisotropy","authors":"Théophile Njanko, Bertille Edith Bella Nke, Pierre Rochette, François Demory, Alexander Ndengwe, Innocent Tiseh Kunyimih","doi":"10.1007/s12517-025-12177-6","DOIUrl":"10.1007/s12517-025-12177-6","url":null,"abstract":"<div><p>Microstructure determinations and magnetic parameter measurements are conducted on the Neoproterozoic Boula-Ibi granitic pluton (BIGP) in the western domain of the Neoproterozoic Central African Fold Belt (NCAFB) in Cameroon. We deciphered the deformation and emplacement of the BIGP that contributed to highlight the magmatic sinistral kinematic context of its emplacement in the belt. It is emplaced in a basement made of monzonite, syenite, and gneiss. The magnitude of the magnetic susceptibility, dominantly ferromagnetic, is controlled by magmatic magnetite of different size ranging from single- to multi-domains as confirmed by thermomagnetic and hysteresis curves. The degree of magnetic anisotropy value is < 1.2 and AMS ellipsoids, of both oblate and prolate shapes, imply that flattening and shearing components have both influenced the granitic pluton emplacement. Microstructure data reveal that the pluton emplaced as syn- to late-tectonic magma that registered magmatic to solid state deformations with the drop in temperature in a progressive deformation. The magnetic fabrics of the BIGP strike NW–SE and NE-SW, with low plunges of lineation and moderate dips of foliation and display a sigmoidal S-type pattern, inferring a magmatic sinistral shearing context of the emplacement during transpressive tectonic. This tectonic is correlated to the transpressive D<sub>2</sub> deformation event of regional tectonic. Microstructures, kinematic markers, S-shape of the magnetic fabrics, and the emplacement age (596–566 Ma) of the BIGP indicate that it was emplaced during the transition period between the sinistral D<sub>2</sub> and the dextral D<sub>3</sub> deformation events in the NCAFB history in Cameroon.</p></div>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"18 3","pages":""},"PeriodicalIF":1.827,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143379793","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}
Carlos J. T. Nieto-Rivero, Oscar C. Valdiviezo-Mijangos, Erick E. Luna-Rojero, José A. España-Pinto, Rubén Nicolás-López, Valery M. Levin
{"title":"Anisotropic rock physics templates constructed by the Mori–Tanaka-Benveniste Method and evaluated with classical micromechanics modeling and experimental data","authors":"Carlos J. T. Nieto-Rivero, Oscar C. Valdiviezo-Mijangos, Erick E. Luna-Rojero, José A. España-Pinto, Rubén Nicolás-López, Valery M. Levin","doi":"10.1007/s12517-025-12198-1","DOIUrl":"10.1007/s12517-025-12198-1","url":null,"abstract":"<div><p>Lithologic and elastic interpretations of reservoir rocks and minerals are critical steps in hydrocarbon exploration and production. In this work, we developed an anisotropic micromechanical scheme known as the Mori–Tanaka-Benveniste Method (MTBM) to compute the effective elastic properties of isotropic and anisotropic composites. This led to the creation of new Anisotropic Rock Physics Templates (ARPTs), represented as Ternary Diagrams based on Young’s moduli and Poisson’s ratios, considering factors such as mineralogy, porosity, pore fluid type, and pore geometry. An essential aspect of this research is the pore aspect ratio (<span>(alpha)</span>), a critical parameter influencing pore shape and significantly impacting rock characterization, pore fluid behavior, and mineralogy. We explored an isotropic scheme with a pore aspect ratio of <span>(alpha =1)</span> (spherical pores). We compared it against established methods, including the Perfectly Disordered Method (PDM), Self-Consistent Method (SCM), and classic models like the Hashin–Shtrikman schemes, using Berea sandstone as a reference sample. The resulting ARPTs were constructed as Ternary Diagrams based on calcite, quartz, and clay, utilizing pore aspect ratios of 0.1 and 0.5 (representing aligned spheroidal pores). These templates were applied to various anisotropic samples and formation data, including Bazhenov, Niobrara, Lockatong, Woodford, Chicopee, and a Shale sample from 5000 ft depth, where they demonstrated a strong fit. MTBM provides analytical solutions in a tensorial form that minimizes numerical complexity, presenting a significant advantage over classical self-consistent approaches. This innovative integration of micromechanical modeling with petrophysical analysis enhances the understanding of reservoir characteristics and supports more effective hydrocarbon exploration and production.</p></div>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"18 3","pages":""},"PeriodicalIF":1.827,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143373240","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}
Liu Yang, Wang Junming, Zhang Wenquan, Li Zhaolei, Zha Zhengtang
{"title":"Analysis of various parameters in soaking: a case study of Permian Fengcheng Formation in Mahu Sag, Junggar Basin, China","authors":"Liu Yang, Wang Junming, Zhang Wenquan, Li Zhaolei, Zha Zhengtang","doi":"10.1007/s12517-025-12206-4","DOIUrl":"10.1007/s12517-025-12206-4","url":null,"abstract":"<div><p>During the shale oil development process in the Mahu Sag, there is a significant difference in the initial crude oil production after soaking, which is considered to be related to the soak. Therefore, 7 wells in the research area were selected to study the relationship between various parameters in soaking and initial crude oil production under similar control engineering parameters. Selecting parameters with strong correlation to establish a multiple linear regression equation with initial crude oil production and predict the initial crude oil production of Well M57. The results indicate that the initial oil production is negatively correlated with pressure drop rate, porosity, and soaking time. Establishing a multiple linear regression equation as Y = − 127.1823A—5.20913B + 1.35608C + 73.81473 and predicting initial oil production of well M57 is 16.58 m<sup>3</sup>/d. Based on the relationship between pressure drop rate and soak time, the pressure curve is divided into four phases. The reasonable soak time is between the lower and upper limits. The favorable soak time for initial crude oil production is between the II and III stage. This study fills the gap in predicting the initial production of shale crude oil in Mahu Sag and can provide guidance for the efficient development of shale oil in the region in the later stage.</p></div>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"18 3","pages":""},"PeriodicalIF":1.827,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143361957","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":"Bulk density prediction in missed intervals of Nubian reservoir using multi-machine learning and empirical methods","authors":"Mohammed A. Amir, Hamzah S. Amir","doi":"10.1007/s12517-025-12204-6","DOIUrl":"10.1007/s12517-025-12204-6","url":null,"abstract":"<div><p>This paper presents a comprehensive study on predicting bulk density in missed intervals of the Nubian reservoir in the Sirt Basin, Libya, leveraging both empirical and machine learning methodologies. Bulk density is one of the most significant and crucial parameters for rock physics modeling, geomechanical analysis, and reservoir characterization; however, this measurement is not present in all intervals of the Nubian reservoir in the Sirt Basin to predict an accurate, reliable prediction and save cost. Empirical equations such as Gardner, Lindseth, and Khandelwal models, alongside machine learning algorithms including random forest (RF), multi-layer perceptron (MLP), and support vector machine (SVM), are employed using conventional logs that were collected from four vertical wells. The data set undergoes a pre-processing step before being divided into 50%, 20%, and 30% for training, testing, and validation, respectively. The optimization is performed using the Grid search CV function. Based on the findings, using machine learning rather than empirical models to predict bulk density is more effective. The machine learning model achieves a higher correlation coefficient above 0.89 and lower mean absolute error than the empirical approaches. Conclusively, a predicted bulk density by supervised machine learning approaches can be used as a reference in all intervals that lack the density log.</p></div>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"18 3","pages":""},"PeriodicalIF":1.827,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143361956","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":"Estimation of shale volume (Vsh) of lithofacies of Agbada Formation, offshore western Niger Delta, Nigeria: gamma ray (GR) logs perspectives","authors":"Moshood Adegboyega Olayiwola, Olugbenga Temitope Fajemila, Festus Ojenabor","doi":"10.1007/s12517-024-12172-3","DOIUrl":"10.1007/s12517-024-12172-3","url":null,"abstract":"<div><p>This paper presents the results of a comprehensive analysis of five gamma ray logs from the offshore western Niger Delta, Nigeria. The investigation was aimed at using gamma ray logs to estimate the shale volume, identify lithology, correlate between formations, and establish the comparative rate of accretion of deposits of the five studied wells. Five lithologies were recognized, namely, sandy mudstone, shale/mudstone, fine-medium grained sandstone, argillaceous sandstone, and coarse-grained sandstone. The lithology thicknesses varied down the profile of the studied wells due to the discrepancy in the subsidence with erosion and onlap of sediments. The shale volume (Vsh) investigation revealed low Vsh values for argillaceous, fine-medium, and coarse-grained sandstones and high values for shale/mudstone and sandy mudstone lithologies. However, lithologies are discriminated into three types of formation, namely, clean formation (Vsh < 10%), shaly formation (Vsh ranged from 10 to 30%), and shale formation (Vsh is more than 33%). These differentiated lithologies consist of laminated, structural, and dispersed shale, respectively. It is shown that when the Vsh values increase, the Vsh/lithological thickness ratios increase, and when the Vsh/lithology thickness ratios increase, the lithology thicknesses decrease. The graphic correlation revealed that for 1 m of sediment accretion in MOX4 well, 0.10 m, 0.30 m, 0.31 m, and 0.42 m of rocks were accumulated in MOX1, MOX2, MOX3, and MOX5 wells, correspondingly. These comparative rates of sedimentary particle accumulation proved that there were either fewer erosion occurrences or extra accommodation gaps within MOX4 than in MOX1, MOX2, MOX3, and MOX5 wells.</p></div>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"18 3","pages":""},"PeriodicalIF":1.827,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143361836","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}