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Now showing items 130-149 of 373
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Field guides for excursions to the nevado del ruiz volcano and to the romeral fault system (colombia), in the frame of the neotectonics of arc-continent collision concepts
Central Cordillera of Colombia near to the Nevado del Ruiz volcano, is a seismically active area above the subducting slab of the Nazca plate and deforming upper crust of the Andes. Buildings in the region require strengthening ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Fine thermohaline structure of the colombian pacific ocean
The present document shows strata classification of the Colombian Pacific Ocean - COLUMBIAN PACIFIC OCEAN, done by first time according its fine thermohaline structure, based on temperature and salinity fields analysis. ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
First latin american congress of seismology
Earth interior have been studied during last century to know dimensions, properties and its reological structure. These information has been used to understand the continental and marine formation, the energy involved and ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Formation of oil and gas reservoirs in deep water areas of the South Caspian Depression
The aim of the article is the identification and characterization of complex factors acting simultaneously on forming a large-sized reservoirs in the deep South Caspian Basin, as well as the formation of a model based on ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Fractal characteristics of reservoir structural fracture: a case study of Xujiahe Formation in central Yuanba area, Sichuan Basin
The reservoir structural fractures have excellent fractal characteristics, as well as self-similarities. Based on the fractal theory, the surface fractal characteristics of faults and the fractal characteristic of fractures ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Fractales y series de datos geofísicos
La geometría de fractales ha surgido como una herramienta potencialmente útil para la caracterización de datos en Geofísica. Comúnmente, los datos geofísicos conforman series de tiempo, que exhiben un comportamiento aleatorio ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
La función característica de punto de hamilton y la función de tiempos de difracción de la sísmica geométrica en la migración con amplitudes verdaderas
Usando la teoría del rayo paraxial en la aproximación de segundo de los tiempos de tránsito, podemos estimar la función de tiempos de tránsito asociada a un frente de onda proveniente de un reflector, y en consecuencia ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Geochemical Characteristics and Paleoenvironmental Signi cance of the Ordovician Paleokarst Reservoir in the Maigaiti Slope of Tarim Basin
The Ordovician carbonatites of the Maigaiti slope have formed the conditions for the development of large oil and gas fields with karst reservoirs. This study systematically analyzed the isotopic characteristics of carbon, ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Las geociencias en la filatelia
La Filatelia ha sido conocida desde antaño como el "pasatiempo de los reyes y el rey de los pasatiempos", manteniendo y aumentando su popularidad, aun luego de cumplir 153 años desde la introducción del sello de correos.La ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Geoinformation density: a criterion on anh block negotiation
Based on the general information included within the ANH Exploration and Production Information Service, the information distribution densities of the Colombian territory were determined. Thesedensities are referred in ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Geological and geophysical evaluation of the ajana area’s groundwater potential, southwestern nigeria
Acombined geological and geophysical evaluation was madeof the groundwater potential of the Ajana, RemoNorth area in south-western Nigeria; the geology and other structural features of the rocks there strongly influenced ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Geological Characteristics of Unconventional Gas in Coal Measure of Upper Paleozoic Coal Measures in Ordos Basin, China
There are enormous resources of unconventional gas in coal measures in Ordos Basin. In order to study the geological characteristics of unconventional gas in coal Measures in Ordos Basin, we analyzed and summarized the ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Geology and depositional environment of campano-maastrichtian sediments in the anambra basin, southeastern nigeria: evidence from field relationship and sedimentological study
The study area lies within the Anambra Basin and it is made up of Enugu Shale, Mamu Formation, Ajali Sandstone, and Nsukka Formation. This study aimed at determining the geology and depositional environmental of these ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Geology of the florencia gold – telluride deposit (camagüey, cuba) and some metallurgical considerations
This paper describes the results from a study of the Florencia gold-telluride deposit in Central Cuba, including mineralogical, petrographical, microprobe and chemical analysis. Valuable information is provided for the ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Geometric model of the nazca plate subduction in southwest colombia
A geometric model for the subduction of the Nazca plate beneath the South American plate in southwestern of Colombia is proposed based on the relocation of hypocenters of local and distantearthquakes. By means of the ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Geophysical contribution to evaluate the hydrothermal potentiality in egypt: case study: hammam faraun and abu swiera, sinai, egypt
The geothermal potentiality in Egypt has a minor significance in the aspects of the Egyptians life, while the hydraulic and hydrocarbonresources are more convenient. However, some other applications for the geothermal ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Geophysical evidence for an impact crater in vichada, northwestern south america and its economic potential
A prominent positive free-air gravity anomaly mapped over a roughly 50-km diameter basin is consistent with a mascon centered on (4°30'N, -69°15'W) in the Vichada Department, Colombia, South America. The inferred impact ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Geophysical exploration of disseminated and stockwork deposits associated with plutonic intrusive rock: a case study on the eastern flank of colombia’s western cordillera
Disseminated deposits are low-grade, large tonnage deposits which are mainly mined for gold, copper, molybdenum and tin. These deposits are normally associated with intermediate to acid plutonic intrusive rocks and all are ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Geospatial Analysis for the Determination of Hydro-Morphological Characteristics and Assessment of Flash Flood Potentiality in Arid Coastal Plains: A Case in Southwestern Sinai, Egypt
Coastal plains with a unique geographic setting and renewable natural resources are promising for sustainable development; however, these areas may be subjected to some environmental hazards due to their geological setting. ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal. -
Geostatistical Analysis for delineating sterile inclusions in Sidi Chennane' phosphatic series, Morrocco
The anomalies detected in phosphatic series of Sidi Chennane, one of phosphatic basins in Morocco, hinder the proper exploitation of phosphate levels and the assessing phosphate reserves seems incorrect. The purpose of ...Universidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal.
