Using the laws of original horizontality, superposition, and cross-cutting relationships interpret the order of the formation of featu...

Cross Section Interpretation Exercise

Contact Metamorphism Vs. Regional Metamorphism | Geology IN

Contact Metamorphism Vs. Regional Metamorphism

Contact Metamorphism: note how new higher temperature minerals appear moving toward the pluton in the shaleous protoliths, whereas in the monomineralic rocks you have only recrystallization.

Three cut-away diagrams show the relationship and movement between the asthenosphere, lithosphere and continental crust, as well as oceans, ...

How Mountains are Formed - Lesson

Three cut-away diagrams show the relationship and movement between the asthenosphere, lithosphere and continental crust, as well as oceans, .

Paleontología: Procendencia de los términos de la escala de tiempos geológicos

Paleontología: Procendencia de los términos de la escala de tiempos geológicos

The World’s Worst Mass Extinctions

History is riddled with massive die-offs. At times, of Earth& species disappeared. Here& a look at the worst extinction events and what caused them.

geology - lots of great info. and visuals for older students!

geology - lots of great info. and visuals for older students! (Scroll down to graphic organizer of rock types.

Breve escala geológica

Geology is an absolutely fascinating and broad field of study. Check here for pretty minerals, volcanoes, fossils, and so on.

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