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Геология России: Recent submissions
Now showing items 1101-1120 of 43490
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(2006)We describe amphibolite-facies shear zones affecting an orthogneiss from the Armorican Hercynian belt (Ile d’Yeu, western France). The deformation pattern is consistent with top-to-the-South thrusting followed by E–W ...
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(2006)We evaluate the strengths and weaknesses of six publicly available global bathymetry grids: DBDB2 (Digital Bathymetric Data Base; an ongoing project of the Naval Research Laboratory), ETOPO2 (Earth Topography; National ...
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(2006)Late Jurassic formations of the Northern Calcareous Alps (NCA) contain ample evidence of synsedimentary tectonics in the form of elongate basins filled with turbidites, debris flows and slumps. Clasts are derived from the ...
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(2006)Trifa is the most productive agricultural plain of north-eastern Morocco. The development of agricultural activities during the last few decades has been mainly based on imported water for irrigation. However, irrigation ...
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(2006)Jinan Springs are an important historical heritage in China and have been well known for hundreds of years. Over-abstraction of groundwater in the Jinan area has seriously endangered the hydrological system of the springs, ...
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(2006)In this paper, we demonstrate the effectiveness of steerable filters as a method of delineating the boundaries of subsurface geological structures. Steerable filters, generally used for edge detection on 2-D images, have ...
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(2006)The well-defined pollen record in massive marine clay deposits from the subaqueous Changjiang (Yangtze River) delta reveals changes in vegetation and inferred climate during the last about 1600 years. Climatic periods ...
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(2006)Thermal waters potentially provide information on geochemical processes acting deep within aquifers. New isotopic data on groundwater sulphate, inorganic carbon and strontium in thermal and non-thermal waters of a major ...
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(2006)Significant intrusion of geothermal water into fresh groundwater takes place in the Puebla Valley aquifer system, Mexico. The decline in the potentiometric surface due to the overexploitation of the groundwater induces ...
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(2006)Over the last several decades, water users in the western United States have increasingly turned to groundwater resources to support economic development, but few institutional arrangements were in place to govern groundwater ...
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(2006)The Cretaceous sediments of the Ariyalur area, southern India, are the largest and the most important of all the exposures of that system in southern India. Oyster bivalves are common in these Cretaceous sediments. More ...
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(2006)Based on the factor analysis of chemical elements determined in topsoil (0–5 cm) and attic-dust, two natural and two man-made (anthropogenic) geochemical associations were discovered in the Meza valley, an old mining and ...
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(2006)The aim of this work is to investigate whether it is possible to determine a critical sampling grid density for a given ore body, above which further improvement in the accuracy of the estimated ore reserves would be small ...
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(2006)The evolution of groundwater chemistry along the direction of groundwater flow was studied using hydrochemical data from samples collected along a flow line in the Neogene Aquifer, Belgium. Infiltrating water was found to ...
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(2006)The Lince–Estefanía stratabound copper deposit in the Michilla district is one of the most important deposits in the Coastal Cordillera of northern Chile and is one of the most representative of this type of deposit. ...
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(2006)The intersections between three-dimensional fracture networks consisting of constant- and variable-size disks with a gallery were systematically analyzed. Exact and approximate analytical formulae were derived for the ...
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(2006)This study focuses on the depositional and deformational features of quartzite-shale and phyllite beds in the lower part of the Seochangri Formation, Okcheon Group, mid-Korea. Each quartzite unit (25–320 cm thick) is ...
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(2006)Chlorofluorocarbons (CFCs) and sulphur hexafluoride (SF6) provide a technique for dating groundwaters up to 50 years old. When used together, CFCs and SF6 can help to resolve the extent to which groundwater mixing occurs, ...
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(2006)The southwestern Chad basin is a semi-arid region with annual rainfall that is generally less than 500 mm and over 2,000 mm of evapotranspiration. Surface water in rivers is seasonal, and therefore groundwater is the ...
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(2006)Limestone–marl alternations and other micritic calcareous rhythmites have long appealed to sedimentologists, as they appeared to directly reflect high-frequency environmental change. In particular, when orbital forcing ...
Now showing items 1101-1120 of 43490