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miércoles, 11 de noviembre de 2015

NASA : Layers and Fractures in Ophir Chasma, Mars .- Capas y fracturas en Ophir Chasma, Marte

Hola amigos : A VUELO DE UN QUINDE EL BLOG., Ophir Chasma forma la porción norte de la gran sistema Valles Marineris, de cañones de Marte, y esta imagen, adquirida el 10 de agosto de 2015, por the High Resolution Imaging Science Experiment (HiRISE) de la cámara del NASA's Mars Reconnaissance Orbiter, , cuenta con una pequeña parte de su pared y el suelo.
La roca de la pared muestra muchas capas sedimentarias y el suelo está cubierto de cantos por el viento, que son de tamaño intermedio entre ondas de arena y dunas de arena. Las rocas que sobresalen en el suelo podrían ser intrusiones volcánicas de magma de una vez fundida que hizo a un lado las capas sedimentarias de los alrededores y "congeló" en su lugar.
More information....
http://www.nasa.gov/image-feature/layers-and-fractures-in-ophir-chasma-mars

Sedimentary layers on Mars surface in blue tones on left half of image and white on right
Ophir Chasma forms the northern portion of the vast Mars canyon system Valles Marineris, and this image, acquired on Aug. 10, 2015, by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter, features a small part of its wall and floor.
The wall rock shows many sedimentary layers and the floor is covered with wind-blown ridges, which are intermediate in size between sand ripples and sand dunes. Rocks protruding on the floor could be volcanic intrusions of once-molten magma that pushed aside the surrounding sedimentary layers and “froze” in place.
Images like this can help geologists study the formation mechanisms of large tectonic systems like Valles Marineris. (The word “tectonics” does not mean the same thing as “plate tectonics.” Tectonics simply refers to large stresses and strains in a planet’s crust. Plate tectonics is the main type of tectonics that Earth has; Mars does not have plate tectonics.)
The University of Arizona, Tucson, operates HiRISE, which was built by Ball Aerospace & Technologies Corp., Boulder, Colorado. NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Mars Reconnaissance Orbiter Project and Mars Science Laboratory Project for NASA's Science Mission Directorate, Washington.
Image Credit: NASA/JPL/University of Arizona
Caption: Kirby Runyon
Last Updated: Nov. 9, 2015
Editor: Sarah Loff
Tags:  Image of the Day, Mars, Mars Reconnaissance Orbiter (MRO), Solar System,
NASA
Guillermo Gonzalo Sánchez Achutegui
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