Results 1 to 10 of about 2,493,652 (215)
Spatial and Annual Temporal Distribution of Ozone Concentrations in the Madrid Basin Using Passive Samplers [PDF]
Passive samplers are useful tools for helping to describe the ozone distribution in complex terrain situations. They are also a good complement to continuous monitoring stations.
M.J. Sanz, F. Sanz, G. Sanchez-Peaa
doaj +3 more sources
An intra-Vallesian (Upper Miocene) paleokarst developed at the top of the Intermediate Miocene Unit in the continental intracratonic Madrid Basin is recognized.
Juan Carlos Cañaveras +4 more
doaj +3 more sources
Characteristics of a Mg-palygorskite in Miocene rocks, Madrid Basin (Spain) [PDF]
AbstractPalygorskite in Miocene mudstones, palustrine limestones and calcretes from the Esquivias locality (Madrid Basin, Spain) has been analyzed by X-ray diffraction, infrared spectroscopy, scanning electron microscopy, transmission electron microscopy and analytical electron microscopy to determine its characteristics and chemical composition. Other
Emilia García-Romero
exaly +3 more sources
Analysis of summer O3 in the Madrid air basin with the LOTOS-EUROS chemical transport model [PDF]
Tropospheric O3 remains a major air-quality issue in the Mediterranean region. The combination of large anthropogenic emissions of precursors, transboundary contributions, a warm and dry aestival climate, and topographical features results in severe ...
M. Escudero +9 more
doaj +9 more sources
Dolomitization and silicification in low-energy lacustrine carbonates (Paleogene, Madrid Basin, Spain) [PDF]
Repetitive sequences of carbonate deposits, occurrence include in the lower part of the Paleogene Carbonate Unit (northeast border of the Madrid Basin), have been studied, defining regressive lacustrine sequences and early diagenetic processes. Binocular microscopic examination, scanning electron microscopic/energy dispersive X-ray observations, and X ...
Bustillo Revuelta, María Ángeles +2 more
exaly +3 more sources
Sedimentology and geochemistry of carbonates from lacustrine sequences in the Madrid Basin, central Spain [PDF]
Lacustrine and alluvial carbonate facies have been investigated in Middle Miocene successions of the western side of the Madrid Basin in order to evaluate paleoenvironments in which carbonates formed. Carbonate facies are varied and include: ( 1) calcrete and dolocrete; (2) pond deposits; (3) lake margin dolostone; (4) mudflat carbonate; and (5) open ...
Rafael Fort, J P Calvo, C Kendall
exaly +3 more sources
Advances in the hydraulic interpretation of water wells using flowmeter logs [PDF]
This paper reports on the methodology developed for a new hydraulic interpretation of flowmeter logs, allowing a better characterization of continental hydrological basins.
J. Díaz-Curiel +4 more
doaj +1 more source
Correlation of Boreholes through Well Logs: Application to the Western Sector of Madrid
This study correlates the results obtained from the resistivity and spontaneous potential well logs in six boreholes for water extraction, located in the multilayer siliciclastic basin in the Madrid region, in the center of the Iberian Peninsula.
Jesús Díaz-Curiel +4 more
doaj +1 more source
Atmospheric nitrogen (N) inputs in the Mediterranean Basin are projected to increase due to fossil fuel combustion, fertilizer use, and the exacerbation of agricultural production processes.
Mauro Lo Cascio +18 more
doaj +1 more source
Study Region: Africa. The Lake Chad transboundary aquifer Study Focus: To understand transboundary groundwater hydrodynamics and estimate quantitative groundwater fluxes values between aquifer-sharing countries.
Guillermo Vaquero +6 more
doaj +1 more source

