نتایج جستجو برای: sedimentation basin
تعداد نتایج: 73860 فیلتر نتایج به سال:
In this work, we report the first palynological age for base strata of Silves Sandstones Group in Algarve Basin, located Southern Portugal. The group is oldest sedimentary unit Basin and was deposited unconformably over late Pennsylvanian turbidites Mira Formation, which were folded faulted during Variscan Orogeny. comprises a detrital red bed succession, representing earliest phase sedimentati...
Integrated sedimentological, palynological, and palynofacies analyses of the Arrifes section in central Algarve Basin (southern Portugal) provided new information on age environments this Lower Cretaceous sequence. The sedimentary succession at consists fossiliferous interbedded limestones, marly marls, dated as latest Hauterivian to late Barremian (Lower Cretaceous) based key dinoflagellate ta...
Recently obtained Mars Orbiter Laser Altimeter (MOLA) topography has permitted a new assessment of the morphology, structure, and history of Utopia Planitia. The new topographic data convincingly demonstrate that the Utopia region is an impact basin, as originally proposed by McGill [1989], whose major topographic expression is a circular, 1–3 km deep depression 3200 km in diameter. Utopia Basi...
Mike 21 Model Based Numerical Simulation of the Operation Optimization Scheme of Sedimentation Basin
The sedimentation basin is an important part of hydraulic engineering. Because the prototype size too large and not easy to analyze, Mike 21 has advantages input, conversion, analysis, demonstration data results, which are flexible convenient; however, this method been used in engineering by previous researchers. This research Yellow River Diversion Project as object, a simulation model channel...
Soil erosion involves detachment and transport of soil particles from top soil layers, degrading soil quality and reducing the productivity of affected lands. Soil eroded from the upland catchment causes depletion of fertile agricultural land and the resulting sediment deposited at the river networks creates river morphological change and reservoir sedimentation problems. However, land managers...
Permian red beds of the De La Cuesta Formation in the Sierra de Narváez (Paganzo Basin, northwestern Argentina) are essentially composed of sandstones associated with mudstones and subordinate conglomerates. Facies distributions and stacking patterns indicate that these sediments resulted from the interaction between aeolian and ephemeral fluvial systems, and are represented by aeolian dune, dr...
Newark Supergroup deposits of the Newark Basin (New York, New Jersey, and Pennsylvania) are here divided into nine formations called (from the bottom up): Stockton Formation (maximum 1800 m); Lockatong Formation (maximum 1150 m); Passaic Formation (maximum 6000 m); Orange Mountain Basalt (maximum 200 m); Feltville Formation (maximum 600 m); Preakness Basalt (maximum +300 m ); Towaco Formation (...
ABSTRACT Concepts of the interaction between autogenic (e.g., flow process) and allogenic tectonics) controls on sedimentation have advanced to a state that allows controlling forces be distinguished. Here we examine outcropping subsurface Neogene deep-marine clastic systems traversed Hikurangi subduction margin via thrust-bounded trench-slope basins, providing an opportunity interplay structur...
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