géologie

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BRGM | BUREAU DE RECHERCHES GÉOLOGIQUES ET MINIÈRES

Earth's landmasses were not always what they are today. Continents formed as Earth's crustal plates shifted and collided over long periods of time. This video shows how today's continents are thought to have evolved over the last 600 million years, and where they'll end up in the next 100 million years. Paleogeographic Views of Earth's History provided by Ron Blakey, Professor of Geology, Northern Arizona University. <p style="text-align:right;color:#A8A8A8"></p>

http://www.sciencedump.com/content/earth-100-million-years-now

Earth 100 million years from now (Classic Dump)

Planète Terre - Cours Bourque uLaval

Un article de Wikipédia, l'encyclopédie libre. Diagramme de l'échelle des temps géologiques.

Échelle des temps géologiques

http://fr.wikipedia.org/wiki/%C3%89chelle_des_temps_g%C3%A9ologiques

650 millions d'années en 1'20"

The Art and Science of Colored Sand Grains

Accueil InfoTerre

http://earthsky.org/space/magnetic-pole-reversal-not-a-sign-of-doomsday

Scientists understand that Earth’s magnetic field has flipped its polarity many times over the millennia. In other words, if you were alive about 800,000 years ago, and facing what we call ‘north’ with a magnetic compass in your hand, the needle would point to ‘south.’ A schematic diagram of Earth's interior and the movement of magnetic north from 1900 to 1996.

Magnetic pole reversal not a sign of doomsday | Earth

http://www.futura-sciences.com/fr/news/t/geologie-1/d/en-bref-leger-seisme-dans-les-alpes-de-haute-provence_37051/#xtor=AL-27-1[ACTU]-37051[en_bref_:_leger_seisme_dans_les_alpes-de-haute-provence]

Un séisme de magnitude 4,9 a secoué les Alpes-de-Haute-Provence hier soir, avec un épicentre aux alentours de Barcelonnette. La secousse a été ressentie jusque dans le Var mais le tremblement de terre n’a fait ni victime ni dégât.