Results 21 to 30 of about 108 (69)

Filogenia de Catopsis Griseb. (Bromeliaceae, Tillandsioideae) [PDF]

open access: yes, 2019
Catopsis comprises epiphytic and rupiculous herbs distributed throughout Mexico, Central America, the Caribbean, and northern South America. The genus is more diverse in Mexico, where more than 85 % of its species inhabit.
NANCY MARTINEZ CORREA
core   +2 more sources

Gravity Data Analysis and 3D Modeling of the Caribe-South America Boundary (76°– 64° W) [PDF]

open access: yes, 2012
A new gravity data compilation for Venezuela reprocessed and homogenized. Analysis of the gravity maps using different techniques. In this work, results of independent detailed geophysical surveys were used in conjunction with the reprocessed gravity ...
Sanchez-Rojas, Javier
core  

Evaluación de trazas nucleares de partículas alfa en muestras de cerámica tipo caico [PDF]

open access: yes
The present research work aims to evaluate the effect of nuclear trace densities produced by alpha emission on samples of caico-type ceramics inside the diffusion chamber. The research is descriptive, field and non-experimental.
Rodriguez-Acasio, Marianni Alejandra
core   +2 more sources

Estudio de la estabilidad de labores, para la evaluación y estandarización en el sistema de sostenimiento en unidad minera Bateas S.A.C. [PDF]

open access: yes, 2022
El siguiente trabajo de investigación tiene como objetivo el de realizar un estudio del macizo rocoso para determinar el tipo de clasificación geomecánica en las labores de mina para proponer y desarrollar un óptimo diseño y sostenimiento para evitar ...
Andia Huaco, Neisser Mario
core   +1 more source

GRAPTOLITOS DEL ORDOVÍCICO Y GEOLOGÍA DE LOS AFLORAMIENTOS DEL RÍO VENADO (NORTE DEL DEPARTAMENTO DEL HUILA) [PDF]

open access: yes, 2009
Una fauna fósil de graptolitos compuesta principalmente por Phyllograptus (s.l.) ssp. Fue recolectada de las secuencias del Río Venado. Los restos encontrados en Shales grises sugieren un rango de edad Floiano-Darriwiliano.
Castillo González, Hardany   +2 more
core   +3 more sources

Lake Titicaca: Legend, Myth and Science [PDF]

open access: yes, 2012
Lake Titicaca and the vast region surrounding this deep body of water contain mysteries that we are just beginning to unravel. The area surrounding the world’s highest navigable lake was home to some of the greatest civilizations in the ancient world ...
Stanish, Charles
core  

Gravity Anomalies, Geodynamic Modelling and the Eastern Venezuela Basin Evolution. [PDF]

open access: yes, 2014
This work examines the tectonic evolution of the Eastern Venezuela foreland basin by analysis of gravity anomalies and geodynamical modelling. Gravity data (8ºN-12ºN and 60ºW-66ºW) were processed to produce gravity anomaly maps, the most prominent ...
Rodriguez Millan, Inirida
core  

Contribution à l'étude de la morphologie des cerveaux des indiens [PDF]

open access: yes, 1906
Les quatre cerveaux qui forment la base de cette communication m'ont été amicalement fournis par M. le docteur Lehmann-Nitsche, chargé de la section d'anthropologie du Musée de La Plata. lls proviennent du Musée de La Plata et dans le travail de M.
Jakob, Christofredo
core  

Politics, infrastructure and non-human subjects: The Inka occupation of the Amaybamba cloud forests [PDF]

open access: yes, 2013
This dissertation presents the results of an archaeological study of the Inka occupation and transformation of the Amaybamba Valley, Peru, during the Late Horizon, just prior to the Spanish Conquest.
Wilkinson, Darryl A.
core   +2 more sources

Tectonostratigraphic evolution of the Gulf of Venezuela. [PDF]

open access: yes, 2018
Master's thesis in Petroleum Geosciences EngineeringThe Gulf of Venezuela is located at the boundary between the Cretaceous-Cenozoic deformation zone of the South American and Caribbean plates.
Navas, Rocio
core  

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