نتایج جستجو برای: syncline
تعداد نتایج: 165 فیلتر نتایج به سال:
On 26 November 2019, an Mw = 6.4 earthquake struck the central-western part of Albania. Its impact comprises secondary environmental effects (EEE) and severe building damage within Periadriatic Tirana Depressions. EEE comprised mainly liquefaction phenomena in coastal, riverine, lagoonal sites earthquake-affected area. From evaluation all available earthquake-related data, it is concluded that ...
A higher-order parabolic equation is used to compute the traveltime (phase) and the amplitude in constant density acoustic media. This approach is in the frequency domain, thereby avoiding the high frequency approximation inherent in the Eikonal equation. Intrinsic attenuation can be naturally incorporated into the calculation. The error at large angles of propagation caused by the expansion of...
The Plio-Quaternary Ait Chaib basin occupies the northwestern part of Skoura Syncline, which is northern Middle Atlas Folded Zone. This intracontinental was formed probably in Pliocene after Tortono-Messinian regression sea. deposits are bound by fluvial conglomerates and continental carbonates. They consist barrage travertines; travertine limestones oncholitic silts sands upstream downstream d...
Coal burst disaster is easily triggered by mining-induced fault unloading instability involving underground engineering. The high-static stress environment caused complex geological structures increases the difficulty in predicting and alleviating such disasters humans. At present, mechanism of coal induced slip under high-stress conditions still cannot be reasonably explained. In this study, a...
Complex conductivity measurements of carbonate rocks are scarce despite the occurrence these at surface Earth. The complex spectra 57 samples were measured in a broad frequency range and four salinities (NaCl). A simple model induced polarization is developed to be applied field. in-phase (related conduction) reported as function pore water determine (intrinsic) formation factor conductivity. n...
With the majority of coal mines in uncovered and semi-covered strata now explored developed, most undiscovered coal-bearing are concealed. Compared with expensive drilling, deep targets such as concealed can be more efficiently cost-effectively discovered through geophysical methods. We designed an integrated exploration approach to detect Yangjiazhangzi (YJZZ) area. Large-scale magnetotelluric...
Changes in land use due to open pit mining operations, indirectly affect the hydrological cycle. Open especially method, greatly subsurface conditions, such as lithology and hydrogeology. The purpose of this study was analyze hydrogeological conditions before on syncline folds Mahakam river. This research is an inductive with analytical approach which includes use, geology, area dominated by pl...
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