DIALNET OAI Articles
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Propuesta metodológica para la selección, evaluación y conservación de sitios geológicos - caso de estudio estado Falcón - Yanes, Soraya
This paper consisted of the implementation of a methodology (modified from Bruschi, 2007) for the selection, evaluation and conservation of sites of geological interest in Falcón State. It is a contribution to the knowledge about the variety of the Falcón region, known only by scientific research on its stratigraphy, paleontology, tectonics among others, but not by the delimitation of sites with potential interest for Geology. Thanks to the support of experts from different geological disciplines with knowledge about Falcón State, a list of 28 sites in Falcón that were subject to evaluation through direct and indirect procedures to calculate the...
Nuevo registro de tres especies de Orthaulax (Gastropoda:Strombidae) en las formaciones San Luis y Patiecitos del Oligoceno tardío – Mioceno temprano en el estado Falcón, Venezuela - Macsotay, Oliver; Olivares, Isabel
Until now, the genus Orthaulax has been considered as absent from the Oligo-Miocene basins of South America. On the other hand, it proliferated in the infralittoral environments from the calcareous platforms of the Greater and Lesser Antilles, whose development was influenced by the predominance of plankton-rich and oxygen-rich warm waters entering from the Pacific Ocean. However, in the Venezuelan basins, characterized by muddy sediments, zoned marine waters and the lack of carbonates; six fossil specimens were found and assigned to Orthaulax aguadillensis, O. conoides and O. inornatus, belonging to the family Strombidae, also representing all growth stages and with high...
Inferencia de velocidades de ondas S mediante la técnica de redes neuro-difusas - Coronado, Ronal; Hurtado, Nuri; Aldana, Milagrosa
In this work we use neuro fuzzy system (NFS) in order to obtain inference equations of shear velocity (Vs) of a well in terms of the logarithmic of its porosity (φ), its water saturation (Sw) and its clay volume (Vsh) data. The data belong to a well of the Guafita Field located in the Sub-basin of Apure, Venezuela. For training of NFS were used as input values: φ, Sw, Vsh; and Vs a s output. The training was made with multiple combinations of the independent parameters φ, Vsh and Sw. The results suggest that the use of the three types...
Formulación de un fluido de perforación base diesel de bajo impacto ambiental - Correía, Joseph; Godoy, Génesis; García González, Mario; Vega, Rubén
Drilling fluids must possess chemical and physical properties that allow conditioned at the location of each perforation, this without impairing the environmental sensitivity of the surrounding wellbore. The oil-based fluids have been uself for its many advantages, but these were originally formulated with diesel as a base compound with high concentration of aromatic compounds (28%), the latter with a representative degree of contamination to both humans and the environment environmental. That is the why cleaner bases have emerged such as synthetic oils, but with the disadvantage of high cost have emerged. Considering previously described, was aimed to find the best...
Medición de gas radón en un segmento de la Falla de Boconó, estados Táchira y Mérida. - Rengifo, Martín; Aranguren, Reina; Laffaille, Jaime; Ferrer, Carlos; Audemard M., Franck A.
A survey of total radon soil gas have been accomplished on the Boconó fault in the Merida Andes, where a segment of this active fault of ~170 km long, between the city of La Grita, in the Táchira state, and the Santo Domingo village, in Mérida state, was considered. Measurements of soil gas were taken along traverse lines perpendicular to the trace using a portable radiation monitor. The aim of this work is to characterize the diverse provinces traversed by this active fault, as well as, to evaluate the response of the method in different geological – geomorphological site conditions...
Cartografía neotectónica de la Falla de Boconó entre Tabay y La Toma, Mérida - Venezuela. - Alvarado, Miguel; Cantos, Gabriela; Pérez, Edwin; Audemard M., Franck A.
The Boconó fault is the most important and distinctive geological feature of western Venezuela. It runs for more than 500 km in the southeast-northwest direction with significant implication on the complex structure of the venezuelan Andes. Between the towns of Tabay and La Toma of Mérida state, it have been identified some segments of the fault parallel to the valley of Chama river. The overall geometry is rectilinear with the Chama basin located over the trace of the fault. This work attempts to describe the persistence and consistence of the geomorphological traits that have been produced by the most recent...
Velocidades de las estaciones SIRGAS2000 sobre las placas del Caribe y Suramericana aplicando los modelos de la UNAVCO y VEMOS2009 - Liberal, Luis M.
This work is aimed at determining velocities of a set of SIRGAS2000 stations located in the Caribbean and South American plates, based on the different solutions provided by UNAVCO and VEMOS2009 models and calculations. Velocity vectors obtained from these models are used to transform the coordinates of the national and continental network stations, which will support new stations, once the observations from the Global Navigation Satellite System (GNSS) are adjusted and transformed through the International Terrestrial Reference Framework (ITRF) in which they are ultimately expressed. Mean velocities of the SIRGAS2000 stations on the Caribbean plate in MORVEL2010 are 19.08 +...