Descarga de la presentación: PDF con 2 diapositivas por hoja.
Descarga de la presentación: PDF con 4 diapositivas por hoja.
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Exercise:
1. The following figure represents the seismic waves velocity, in an imaginary planet. Answer the questions:
- What is a discontinuity? How many discontinuities do you observe? Where are they?
- Is it a homogeneus or heterogeneus internal structure? Explain your answer.
- How many layers are there? Describe their structure and states of matter.
Plate tectonics explained.
CONVERGENT BOUNDARY: Lithosphere is destroyed.
DIVERGENT BOUNDARY: Plates separation creates new lithosphere, when magma released in ridges, solidifies.
Remember there are also TRANSFORM BOUNDARIES. I couldn't find a good animation of it. Plates move following the same line but opposite directions.
HOT SPOT: Hot upwelling mantle materials, or mantle plumes, that come from the mantle-core limit; they ascend to the upper mantle; generating lithosphere phenomena.
Wilson's Cycle
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