Correo Electrónico
DNINFOA - SIA
Bibliotecas
Convocatorias
Identidad U.N.
Browsing Earth Sciences Research Journal by Title
Now showing items 155-174 of 373
-
Human health risk due to trace element contamination in groundwater from the anjani and jhiri river catchment area in northern maharashtra, india
Abstract: Present study was carried out the assessment of ground water chemistry with reference to drinking purpose. We have selected the area of Anjani and Jhiri river catchment of Jalgaon district, northern Maharashtra, ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Hydraulic characteristics of sedimentary deposits at the j-parc proton-accelerator, japan
Hydraulic characteristics of sediments were investigated at J-PARC for the purpose of site characterization in relation with the construction of Japan's largest proton-accelerator. A total of 340 samples extracted from 9 ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Hydrochemical characteristics of groundwater for domestic and irrigation purposes in madhuranthakam, tamil nadu, india
Hydrochemical study was carried out in Madhuranthakam located near Chennai in Tamil Nadu, India with an objective of understanding the suitability of local groundwater quality for domestic and irrigation purposes. Twenty ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Hydrochemical characteristics of groundwater for domestic and irrigation purposes in madhuranthakam, tamil nadu, india
Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Hydrogeochemistry and quality assessment of shallow groundwater in the southern part of the yellow river alluvial plain (zhongwei section), northwest china
Statistical analyses, a Piper diagram, the saturation index and the correlations of chemical parameters were used to reveal the hydrogeochemistry and hydrogeochemical evolution of shallow groundwater in the southern part ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Hydrologic homogeneous regions using monthly streamflow in turkey
Cluster analysis of gauged streamflow records into homogeneous and robust regions is an important tool for the characterization of hydrologic systems. In this paper we applied the hierarchical cluster analysis to the task ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Implicaciones sismotectónicas de las soluciones mecanismo focal de algunos terremotos de la región central de colombia
Se han analizado las soluciones del mecanismo focal de veinte terremotos ocurridos a diferentes profundidades y ambientes tectónicos para establecer el marco sismotectónico de la región central del territorio colombiano. ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Improving vertical and lateral resolution by stretch-free, horizon-oriented imaging
The pre-stack Kirchhoff migration is implemented for delivering wavelet stretch-free imaged data, if the migration is (ideally) limited to the wavelet corresponding to a target horizon. Avoiding wavelet stretch provides ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Inferences on the geometry of the nazca plate in northwestern perú based on data collected by a local seismograph network
In Central and Southern Peru, local and teleseismic data allow having insights on the Wadati-Benioff zone (WBZ) geometry. In the region of Northern Perú, only rough estimates of the WBZ geometry have beenproposed, and were ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Influence of black shale composition on methane adsorption and gas content: Implications for gas storage in the Longmaxi black shales
The influence of shale composition on methane adsorption capability and gas content is investigated using 14 samples from Well YS8 in the southern Sichuan Basin, China. The results show that the Langmuir adsorption capacity ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Influence of Pressure and Water Content on Loess Collapsibility of the Xixian New Area in Shaanxi Province, China
More than 40% area of the Xixian New Area is a loess deposit region, and most of the loess landform is tableland and terrace where the thickness of loess is very large. Therefore, loess collapsibility will be the most ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Influence of pressure, coal structure and permeability on CBM well productivity at various burial depths in South Yanchuan Block, China
With a burial depth of 1000 m as the demarcation, the coal reservoir in South Yanchuan Block, China is divided into deep reservoir and shallow reservoir regions. A combination of coalbed methane well production data, well ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Integrated assessments of possible effects of hydrocarbon and salt water intrusion on the groundwater of iganmu area of lagosmetropolis, southwestern nigeria
Vertical electrical sounding (VES) and Induced Polarisation (IP) methods of geophysical survey were incorporated with physiochemical analysis of well water samples to determine vertical extent of petroleum-product ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Interpretation of aeromagnetic data using GIS to evaluate the geotectonic regime of the Sabinas Basin
The study present the use of Geographic Information System (GIS) to assess the geotectonic regimen of the Sabinas Basin. Initially, the GIS database was designed using geological and geophysical information (total magnetic ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Interpreting gravity anomalies in south cameroon, central africa
The area involved in this study is the northern part of the Congo craton, located in south Cameroon, (2.5°N - 4.5°N, 11°E - 13°E). The study involved analysing gravity data to delineate major structures and faults in south ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Interval velocity determination by downward continuation of the traveltime function: paraxial ray approximation
Presentamos un método para estimar las velocidades de intervalo, la profundidad y la geometría de los reflectores en modelos 3D que constan de un apilado de capas homogéneas e isotrópicas con velocidades y densidades ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Intraseasonal variability of rainfall over northern south america and caribbean region
Based on decadal (amounts for each ten days) precipitation data from meteorological stations situated in Northern South America and Caribbean region, a decadal precipitation index (DPI) was calculated in order to study ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Investigation of the geochemical signatures and conditions of formation of metacarbonate rocks occurring within the mamfe embayment of south-eastern nigeria
Hitherto unknown metacarbonate deposits constitute parts of the Cretaceous Mamfe embayment which straddles the border between south-eastern Nigeria and western Cameroon. The rock is characterisedby a high concentration of ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Isostatic Crustal Thickness Under The Tibetan Plateau And Himalayas From Satellite Gravity Gradiometry Data
The global gravity and crustal models are used in this study to determine the regional Moho model. For this purpose, we solve the Vening Meinesz-Moritz’s (VMM) inverse problem of isostasy de ned in terms of the isostatic ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Isostatically disturbed terrain of northwestern andes mountains from spectrally correlated free-air and gravity terrain data
Recently revised models on global tectonics describe the convergence of the North Andes, Nazca, Caribbean and South American Plates and their seismicity, volcanism, active faulting and extremetopography. The current plate ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal.
