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Abdallah S. Al-Zoubi Till Heinrichs Isam Qabbani Uri S. ten-Brink 《Tectonophysics》2007,434(1-4):55-69
Recently released reflection seismic lines from the Eastern side of the Jordan River north of the Dead Sea were interpreted by using borehole data and incorporated with the previously published seismic lines of the eastern side of the Jordan River. For the first time, the lines from the eastern side of the Jordan River were combined with the published reflection seismic lines from the western side of the Jordan River. In the complete cross sections, the inner deep basin is strongly asymmetric toward the Jericho Fault supporting the interpretation of this segment of the fault as the long-lived and presently active part of the Dead Sea Transform. There is no indication for a shift of the depocenter toward a hypothetical eastern major fault with time, as recently suggested. Rather, the north-eastern margin of the deep basin takes the form of a large flexure, modestly faulted. In the N–S-section along its depocenter, the floor of the basin at its northern end appears to deepen continuously by roughly 0.5 km over 10 km distance, without evidence of a transverse fault. The asymmetric and gently-dipping shape of the basin can be explained by models in which the basin is located outside the area of overlap between en-echelon strike-slip faults. 相似文献
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Résumé Des modèles analogiques de réservoirs ont été élaborés à partir de l'analyse de débits de décrue de deux sources karstiques. La première source est caractérisée par une linéarité entre le débit et le temps; la seconde l'est par une loi en puissance. Pour les deux sources, il n'y a pas linéarité entre le volume d'eau souterraine stocké et le débit de la source pour un même temps. Les modèles analogiques élaborés sont constitués d'une association verticale en série de réservoirs. Pour la première source, il s'agit de réservoirs à parois verticales uniquement. Pour la seconde, il s'agit de réservoirs à parois verticales et d'un réservoir dont la géométrie des parois suit une loi en puissance à dimension non entière. La plausibilité et la reproductibilité des modèles analogiques proposés ont été validées en fonction des données disponibles. Il a été démontré que le cas de réservoirs linéaires en milieu karstique est un cas très particulier. Il correspond à des réservoirs à géométrie hyperbolique ou à des réservoirs à parois verticales à filtre poreux. Editeur Z.W. Kundzewicz Citation Carlier, E., Zouhri, L. et Shahrour, I., 2012. Explication de décrues anormales par modèles analogiques de réservoirs. Hydrological Sciences Journal, 57 (5), 913–927. 相似文献
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A reconnaissance survey of the microearthquake activity in Iraq has been carried out during the period from June 1974 to June 1975. It intends to establish where and how often microearthquakes occur, and the level of the microseismic background in Iraq. It is also expected to help in choosing seismically suitable sites for the proposed seismological observatory of Iraq. p]Forty-two stations in thirteen zones distributed in different tectonic provinces, were occupied for 180 hours at intervals of time of up to ten hours.The number of actual microearthquakes recorded was relatively small. Their predominant frequency falls in the range of 0.4–3.0 Hz, for the three components. It was also noticed that the bulk of events have a duration of 100 seconds. Although some correlation was observed between the micro- and macroactivity in general, the microseismic background was high in Ga'ara area where no macroactivity was ever registered. 相似文献
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Judeh Tariq Almasri Mohammad N. Shadeed Sameer M. Bian Hanbing Shahrour Isam 《Water Resources》2022,49(3):503-514
Water Resources - Groundwater NO3 contamination (GNC) threatens the drinkability of water in many countries worldwide. It could cause serious health problems and sometimes lead to death. This paper... 相似文献
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Hani Serhal Daniel Bernard Jamal El Khattabi Bastin-Lacherez Sabine Isam Shahrour 《Environmental Geology》2009,57(7):1579-1592
Since 1975, Europe sets up its policy to limit the degradation and the pollution of the aquatic environments through 30 directives
and regulations. In the north of France, the nitrate concentrations measured in the groundwater exceed the water drinking
limit fixed at 50 mg/L by the European framework directive in the field of water (2000/60/EC). This high concentration is
due to intensive agriculture, industrialization and demographic growth. Several programs were launched in order to resolve
this situation: “Ferti-better” or the use of fertilizer in moderation and installation and amelioration of wastewater collect
and treatment systems. In order to estimate the influence of the anthropic activities on the quality of groundwater in the
“Artois-Picardy” basin, a preliminary validation on parcel and district scale were necessary. The impact of these programs
in the “Cambrai district” was evaluated using an integrated approach, which is based on the use of four numerical models:
AgriFlux, VS2DT, Modflow and MT3D. The results illustrate an improvement due to the “Ferti-Better” program initiated in 1990
and punctual degradation under urbanized areas. Predictions (2015) show a spatial evolution of nitrates concentration varying
with the thickness of unsaturated layer. The integrated model constitutes an efficient tool for predicting the evolution of
the groundwater quality. This approach is important to control the application of the new European laws in the water field. 相似文献
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This paper presents a three‐dimensional finite element analysis of the response of battered piles to the combined lateral and vertical pullout loads. Analyses are carried out using an elastoplastic constitutive law based on the non‐associated Mohr–Coulomb criterion. The influence of the contact condition at the pile–soil interface is also investigated. Analyses show that the load's inclination with regard to the pile's axis affects both the lateral and axial response of the battered piles. Analyses also show that the pullout capacity of battered piles is affected by the pile's inclination regarding the vertical axis as well as the load's inclination regarding the pile's axis. The investigation of the influence of the contact condition at the soil–pile interface shows that the possibility of sliding at the soil–pile interface affects the response of battered piles subjected to loads with low inclination regarding the pile's axis. Copyright © 2008 John Wiley & Sons, Ltd. 相似文献
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Hajo Idriss Isam Salih Abdulaziz S. Alaamer M. Y. Abdelgalil Salih Ali Salih Amna M. Hasan Mohammed A. ELtahir Mustafa M. O. Ahamed 《Environmental Earth Sciences》2014,72(2):335-339
This study was conducted primarily to measure and map radon activity concentration in soil gas and to understand the effect of geology and lithology and meteorology on radon concentration. Portable radon meter has been used for the measurement of soil gas radon at 30 different locations around Uro and Korn area in eastern Nuba Mountain South Kordofan State. The results indicate that the activity concentrations of 222Rn in soil gas fall within the range of 20–1,359 Bq/m3 with geometric mean of 102.80 Bq/cm3. The obtained data show that samples around Uro have anomaly of 222Rn concentrations than the sample around Korn. The reason could be attributed to differences in the geological structure, lithology and climate parameters. GIS predicative map has shown that the elevated levels of radon concentration were measured in North study area. Upon comparing the results with global data, it was found that the obtained values are far below the reported range of India, Slovenia, Portugal and Syria. However, the range of 222Rn concentrations in the soil observed in this study is significantly high relative to similar data reported from Libya. The regression analysis has shown that no correlation was noted between radon concentrations, climatic parameters and trace element. 相似文献
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This paper refers to the formulation of a macroconstitutive law for elastoplastic multilayered media, using both thermodynamical approach and homogenization procedure. The latter shows that both the microstress and strain tensors are constant in each constituent. This result permits the formulation of a macroconstitutive law involving the microplastic strains as internal parameters. Both the macrofree energy and dual dissipation potential are computed and used to derive explicit expressions for the macrocompliance tensor, yield surface and hardening rule. Finally, this law is used to analyse the behavior of a reinforced earth material under various loading paths. 相似文献