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Open Journal of Geology 2021年第12期11卷 658-681页

作者： Amine Bouwafoud mustapha mouflih Abdelmajid Benbouziane Hassan II University of Casablanca Faculty of Sciences Ben M’sik Geosciences and Application Laboratory (LGA) Sidi Othmane Casablanca Morocco

In the Saharian domain, the Tarfaya-Laayoune coastal basin developed in a stable passive margin, where asymmetrical sedimentation increase from East to West and reach a sediment stack of about 14 kilometers. However, the morphology of the studied area corresponds to a vast plateau (hamada) presenting occasional major reliefs. For this purpose, remote sensing approach has been applied to find the best approaches for truthful lithological mapping. The two supervised classification methods by machine learning (Artificial Neural Network and Spectral Information Divergence) have been evaluated for a most accurate classification to be used for our lithofacies mapping. The latest geological maps and RGB images were used for pseudo-color groups to identify important areas and collect the ROIs that will serve as facilities samples for the classifications. The results obtained showed a clear distinction between the various formation units, and very close results to the field reality in the ANN classification of the studied area. Thus, the ANN method is more accurate with an overall accuracy of 92.56% and a Kappa coefficient is 0.9143.

关键词： Tarfaya-Laayoune Basin Geological Mapping Supervised Classification Artificial Neural Network Spectral Information Divergence

Late Cretaceous-Paleogene Formation of the Bekrit Syncline, Middle Atlas, Morocco: Sedimentology, Geochemistry, Palynology and Paleoenvironments

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Open Journal of Geology 2021年第3期11卷 61-80页

作者： Mohammed El Attmani Amine Bouwafoud Salem Elouariti Hicham Si Mhamdi Abdelmajid Ben Bouziane mustapha mouflih Sedimentary Basins Dynamic and Geological Correlations Laboratory Department of Geology Faculty of Science Ben M’sik Hassan II University of Casablanca Casablanca Morocco Laboratory of Applied Geology Department of Geosciences Faculty of Sciences and Techniques Errachidia Moulay Isma&#239 l University of Meknes Meknes Morocco

Globally, the Paleogene period experienced several events marking the Paleocene-Eocene transition which is especially to one of the hottest periods that the Earth has ever known (Paleocene-Eocene Thermal Maximum, PETM), followed by the biological crisis that affected benthic foraminifera. The Bekrit Syncline, subject of this study, shows three Formations of range from the Cretaceous to the Eocene ages (the El Koubbat, Irbzer and Bekrit-Timahdite Formations). Sedimentological, palynological and geochemical analyses of collected samples, in the Bekrit syncline, were studied to determine the paleogeographic and paleoenvironmental conditions of the Middle Atlas. The carbonate rocks were analyzed by microscopic study and geochemical analysis by X-ray Fluorescence (XF) and Inductively Coupled Plasma Spectrometry (ICP). The results obtained highlight the sedimentary events that took place during the Paleogene. Thus, the Maastrichtian is characterized by a closed euxinic marine environment shared by a more open and oxidizing environment. On the other hand, the Paleocene was a restricted marine environment with evaporitic sedimentation, while the Eocene sees the installation of a carbonate platform with a bioclastic Shoal.

关键词： Geochemistry Sedimentology Palynology Carbonates Phosphate Paleoenvironments Middle-Atlas

The Eocene Bryozoans of Bekrit-Timahdite Formation, Middle-Atlas, Morocco: Taxonomy, Paleoenvironments and Paleoclimates Implications

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Journal of Geoscience and Environment Protection 2021年第3期9卷 136-153页

作者： Mohammed El Attmani Amine Bouwafoud Salem Elouariti Hicham Si Mhamdi Abdelmajid Ben Bouziane mustapha mouflih Sedimentary Basins Dynamic and Geological Correlations Laboratory Department of Geology Faculty of Science Ben M’sik Hassan II University Casablanca Morocco Laboratory of Applied Geology Department of Geosciences Faculty of Sciences and Techniques Errachidia Moulay Isma&iuml l University Meknes Morocco

Located in the North-West of the African continent, the Moroccan Middle Atlas constitutes an intra-continental chain within the Atlas domain. It is known by several global geological events such as the Paleocene-Eocene crisis during the Paleogene, which corresponds to one of the hottest periods on earth with Paleocene-Eocene thermal maximum (PETM). A taxonomic study carried out on the carbonate deposits of the Bekrit-Timahdite Formation from three sections of the Bekrit syncline allowed the identification of 5 species of the Cheilostome and Cyclostome Bryozoans (Cellaria rigida, Cellaria sinuosa, Aimulosia lamellosa, Heteropora and Osthimosia) in bioclastic limestones, nodular limestones, marly and sandy limestones. The interest of Bryozoans as indicators of paleoenvironments and paleoclimates was assessed by examining current communities, in terms of depth evolution as richness and abundance, distribution of taxonomic categories zoarium types, and zooidal morphology. The depositional environment analysis of Bryozoans showed a shallow marine carbonate platform with low sedimentation energy where is registered a relatively warm paleoclimate.

关键词： Bryozoans Eocene Taxonomy Carbonate Paleoenvironment Middle-Atlas

The Upper Cretaceous-Paleogene of Phosphate Clays of the Ouled Bou Sbaa Deposit: Mineralogy, Geochemistry, and Beneficiation (Meskala, Morocco)

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Open Journal of Geology 2022年第2期12卷 156-178页

作者： Hanane El Boukhari Salem El Ouariti mustapha mouflih Mohammed Amine Nguidi Lászlό Kocsis Abdelmajid Benbouziane Laboratory of Dynamic of Sedimentary Basins and Geological Correlations Hassan II University of Casablanca Casablanca Morocco Faculty of Science University Brunei Darussalam Geology Group Gadong Brunei Darussalam Brunei

This work aims first to characterize the Maastrichtian and Paleogene clays of the Ouled Bou Sbaa phosphate deposit located in the northern part of the Meskala Basin;and as a second goal, the most efficient clay fractions are tested and identified for organic dyes removal. Several techniques and methods have been adopted for the characterization of clays: X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), X-ray fluorescence (XRF), Scanning electron microscope (SEM), and thermogravimetric analysis (TGA). Tests for the removal of methylene blue from clays were carried out by adsorption. The XRD study shows that the clays of the Ouled Bou Sbaa deposit contain fibrous clay types of palygorskite and sepiolite, and phyllite clays such as montmorillonite and illite. Stratigraphically, the Maastrichtian sample yielded, mainly aluminous clays dominated by montmorillonites, while in the Paleogene clays, the palygorskite-types clays, also rich in magnesium, are more common. The results of FTIR, XRF and SEM analyses confirm the mineralogical data, respectively, by the presence of characteristic bands and the dominance of oxides of silica, aluminum, magnesium, and the large dominance of palygorskite which is presented in the form of bundles or platelets of long fibers and montmorillonite which is presented in the form of a stack of sheets. The adsorption of methylene blue (MB) on these clays showed very fast fixation kinetics and a very efficient purifying power for this organic pollutant. The equilibrium isotherms were determined using the Langmuir, Freundlich and Elovich models. The results show that the Freundlich isotherm had better agreement with the methylene blue on clay with a correlation coefficient of 0.959.

关键词： Phosphate Clays Palygorskite Beneficiation Meskala Basin

Late Cretaceous-Paleogene Formation of the Bekrit Syncline, Middle Atlas, Morocco:Sedimentology, Geochemistry, Palynology and Paleoenvironments

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Development,Capitalism Transformation and Marxism

Open Journal of Geology 2021年第3期

作者： Mohammed El Attmani Amine Bouwafoud Salem Elouariti Hicham Si Mhamdi Abdelmajid Ben Bouziane mustapha mouflih

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学术界 2019年第2期 185-192页

作者： mustapha Machrafi Faculty of Law Economics and Social Science Mohammed V University

Development,Capitalism Transformation and

关键词： capitalism Marxism sub-Saharan Africa political economy paradigm shift

Quantum-classical correspondence for the inverted oscillator

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Chinese Physics C 2017年第11期41卷 56-62页

作者： mustapha Maamache Jeong Ryeol Choi Laboratoire de Physique Quantique et Systèmes Dynamiques Faculté des SciencesUniversité Ferhat Abbas Sétif 1 Sétif 19000 Department of Radiologic Technology Daegu Health College

While quantum-classical correspondence for a system is a very fundamental problem in modern physics,the understanding of its mechanism is often elusive,so the methods used and the results of detailed theoretical analysis have been accompanied by active *** this study,the differences and similarities between quantum and classical behavior for an inverted oscillator have been analyzed based on the description of a complete generalized Airy function-type quantum wave *** inverted oscillator model plays an important role in several branches of cosmology and particle *** quantum wave packet of the system is composed of many sub-packets that are localized at different positions with regular intervals between *** is shown from illustrations of the probability density that,although the quantum trajectory of the wave propagation is somewhat different from the corresponding classical one,the difference becomes relatively small when the classical excitation is sufficiently *** have confirmed that a quantum wave packet moving along a positive or negative direction accelerates over time like a classical *** these main interpretations and others in the text,we conclude that our theory exquisitely illustrates quantum and classical correspondence for the system,which is a crucial concept in quantum mechanics.

关键词： quantum-classical correspondence inverted oscillator quantum wave packet

Substructure design optimization and nonlinear responses control analysis of the mega-sub controlled structural system (MSCSS) under earthquake action

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Earthquake Engineering and Engineering Vibration 2021年第3期20卷 687-704页

作者： mustapha Abdulhadi Zhang Xun′an Buqiao Fan Muhammad Moman College of Mechanics and Civil Engineering Northwestern Polytechnic UniversityXi’an 710071China

The newly proposed mega sub-controlled structure system(MSCSS)and related studies have drawn the attention of civil engineers for practice in improving the performance and enhancing the structural effectiveness of mega frame ***,there is still a need for improvement to its basic structural *** this project,an advanced,reasonable arrangement of mega sub-controlled structure models,composed of three mega stories with different numbers and arrangements of substructures,are designed to investigate the control performance of the models and obtain the optimal model configuration(model with minimum acceleration and displacement responses)under strong earthquake *** addition,the dynamic parameters that affect the performance effectiveness of the optimal model of MSCSS are studied and *** area of the relative stiffness ratio RD,with different mass ratio MR,within which the acceleration and displacement of the optimal model of MSCSS reaches its optimum(minimum)value is considered as an optimum *** serves as a useful tool in practical engineering *** study demonstrates that the proposed MSCSS configuration can efficiently control the displacement and acceleration of high rise *** addition,some analytical guidelines are provided for selecting the control parameters of the structure.

关键词： mega sub-controlled structure system(MSCSS) optimal model viscous damper dynamic parameters control effectiveness response control rubber bearing

Gyroscope precession frequency analysis of a five-dimensional charged rotating Kaluza-Klein black hole

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Chinese Physics C 2020年第6期44卷 143-153页

作者： mustapha Azreg-Aïnou Mubasher Jamil Kai Lin Engineering Faculty Başkent UniversityBağlıca CampusAnkaraTurkey Institute for Theoretical Physics and Cosmology Zhejiang University of TechnologyHangzhou 310023China School of Natural Sciences National University of Sciences and TechnologyH-12Islamabad 44000Pakistan Institute of Geophysics and Geomatics China University of GeosciencesWuhan 430074China

We study the spin precession frequency of a test gyroscope attached to a stationary observer in the five-dimensional rotating Kaluza-Klein black hole(RKKBH). We derive the conditions under which the test gyroscope moves along a timelike trajectory in this geometry, and the regions where the spin precession frequency diverges. The magnitude of the gyroscope precession frequency around the KK black hole diverges at two spatial locations outside the event horizon. However, in the static case, the behavior of the Lense-Thirring frequency of a gyroscope around the KK black hole is similar to the ordinary Schwarzschild black hole. Since a rotating Kaluza-Klein black hole is a generalization of the Kerr-Newman black hole, we present two mass-independent schemes to distinguish these two spacetimes.

关键词： rotating black hole Kaluza-Klein spin precession gyroscope

South Carolina forestland owners’ willingness to accept compensations for carbon sequestration

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Forest Ecosystems 2019年第2期6卷 119-131页

作者： mustapha Alhassan Marzieh Motallebi Bo Song Clemson University Baruch Institute of Coastal Ecology and Forest Science P. O. Box 596 Georgetown SC 29442 USA U.S. Geological Survey Science and Decisions Center 12201 Sunrise Valley Drive Mail Stop 913 Reston VA 20192 USA

Background: Carbon sequestration through recommended forest management practices is an ecosystem service that helps mitigate climate change and its impacts while generating carbon credits for forestland owners to sell in cap-and-trade programs. The California’s cap-and-trade program (California’s carbon market hereafter) allows forestland owners from any part of the contiguous United States to supply carbon credits to compliance entities. In this study, we estimate South Carolina (SC) private forestland owners’willingness to accept compensations to participate in the California’s carbon market using a contingent valuation method. Results: We estimate forestland owners’mean willingness to accept as$67 per acre per year. Our results reveal higher probability of participation of forestland owners with interests in preserving forest ecosystems than those who do not. Additionally, forestland owners who trust in information about climate change from scientists or government are willing to participate more than those who do not. Conclusions: Various factors hinder landowners’ability to participate in carbon markets. Forestland owners in SC consider legislative uncertainty and long-time commitment as the main barriers to participation in California’s carbon market. From this research, average forestland tenure in SC is 27 years, which is far less than the 100-year time commitment of the California’s carbon market. Of those who agreed to participate, choosing between adopting and not adopting any of the three main forest management practices in the California’s carbon market:28% are likely to adopt improved forest management (IFM) practices, 24% are likely to adopt reforestation due to understocked forestlands, and 14% are likely to adopt avoided conversion. In another development, the concept of aggregation has dominated discussions in the California’s carbon market of late. It is an advocacy to include small-scale forestlands in the California’s carbon market. To aggregate

关键词： Forestland owners Carbon markets Willingness to accept